Document a1LMXozKXg0G67ej5MrZ791Re

e rttm ic OFFICERS President John F. McMahon Alfred, N. Y. President-Eject Brsdley Mexico, Mo. Vice-Presidents Wayne A. Deringer ''/ ' Milwaukee, Wise. `^ Clarence H. H ahner ./Washington, D. C. i'j'i. S. Nordyke . '.Carnegie, Pa. , Treasurer Andrew Pereny " ilumbus, Ohio J Secretary and Editor lee S. Pearce Columbus, Ohio Committee on Publications C. H. H ahner Chairman W. R. Kerr ' J. O. Everhart .. E. P. McNamara C. S. Pearce (ex officio) 'Managing Editor '"Jam es S. Welch Editorial Assistants . v Emmoline R. Jam ra ./ Charlotte B. Burgess ' . Advertising Manager A rthur S. Koschny Eastern Representative William T. M ohrman, Jr. 437 Fifth Ave., New York 16, N. Y. Phone: Murray Hill S-S633 : Midwest Representative Jam es K. Millhouse ' 3935 West Montrose Ave. . Chicago 34, 111. . . Phone: Mulberry 5-0070 Offices h recutive, editorial, and adve .----Jg: 4055 North High St Columbus 14, Ohio. Phone AMhtrst 8-8645 A. T. & T. Teletype CL593 Publication: 20th & Nortl ampton Sts., F.aston, Pa. October, 1957 Papers Regenerator Efficiency and Basic Brick in a G lass Furnace.......... 381 L. F. Robertson, Frank V . Halvonik, and John J . McMackin Sizing B aT iO , Using Laboratory-Size Sedimentation Tubes of a New Design.......................................................................................... Kenneth G . Skinner and Marion J . Riley 385 Articles Ground Broken for Harbison-Walker Research Center................ 3 89 New Aw ard Established for Ceramists.............................................. 390 PEI Shop Practice Forum....................................................................... 392 Eugene C. Sullivan of Corning............................................................. 393 Nominations for O fficers...................................................................... 400 Roster Membership Roster................................................................................. 401 Institute Roster....................................................................................... R-129 Departments In Print for Ceramists . 2 Mailbox for Readers,. 5 ,8 Meetings Calendar. . 10 Consulting Services.. R-124 Men and Positions... 16, 17 Advertisers' Index. . . 18 Personal Notes.. . . . . 15 Authors........................ . 394 Names........................... . 396 Schools......................... 398 Out of the Kiln . . . . . 399 Necrology.................. . 399 Ground Broken for Harbison-Walker Research Center A center for research in refractories is being uilU ^t Harbison-Walker Refractories Co., n ^ ^ B c r e site south of Pittsburgh, Pa. fS P n o n d E. Birch, director of research, escribed the million-dollar project as bring- ig together all of the company's research ctivities, with ample room for expansion. The new facility is to be in two structures, nnected by a reception area. The Fine nstruments Building will house laboratories >r studying chemical, mineralgica!, and hysical properties of refractory materials, ith X-ray, spectrographic, microscopic, and hotographic equipment. It will also have he offices, libran-, and conference rooms. In the Pilot Plant Building will be the pecialties laboratories, materials storage, nd other functions. Crushing, grinding, izing, blending, forming, drying, and firing quipment will be of a size for processing in mall tonnage lots. Kilns will have atmos- heric controls to provide for studying com mercial refractories under the varied condi- ions found in many industries. Harbison-Walker is expanding into new efractory product fields, according to Earl l. Garber, company- president, naming in articular mullite, silicon carbide, and zircon, H arbison-W alker officials use a tractor to break ground for the company's new research center Left to right; Donald F. Stock, R. P. Snyder, Earl A. G a rb e r, and Raymond E. Birch le also said th at the company's new facili tes in several foreign countries have made available addi- trained in ceramics, chemistry, physics, and metallurgy-, with ional types of raw materials of considerable promise. many technical assistants. Edwin Ruh is assistant director products of the Harbison-Walker plants are refrac- of research and Donald F. Stock is laboratory manager. d insulation for industrial furnaces and chemical g. In addition they manufacture molding media or nt materials for shell molding and precision casting, S.C.P.I. to Meet at Greenbrier nd magnesium chemicals. Research is to be intensified in efractory materials for rocket launching sites and jet air raft maintenance areas. The field of nuclear energy is also o be explored. Upon completion of the new research facility next year the >resent Hays Research Laboratory will be given over entirely o the quality control dpartment. The Structural Clay Products Institute will hold its annual convention November 11-13 at the Greenbrier Hotel, White Sulphur Springs, W. Va. Registration and a get-acquainted coffee and doughnut session are scheduled for Monday morn ing. Business sessions will be held Monday afternoon and both Tuesday morning and afternoon. The annual presi dent's reception and banquet is set for Tuesday evening. Mr. Birch said that their research organization will be ex- Wednesday will be open so that members may take advantage >anded to about 100 persons, placing its reliance on engineers of the recreational facilities of the hotel. In addition to regular convention sessions, there will be an election of officers and meetings of the board of S.C.P.I. and of two of S.C.P.I.'s affiliates, the Facing Tile Institute, and the Architectural Terra Cotta Institute. There will also be a meeting of the board of management of the Structural Clay Products Research Foundation as well as the National Asso ciation of Distributors & Dealers of Structural Clay- Products. '**fcftuct's ketch of the H arbison-W alker Research Center. In the fore ground b the Fine Instruments Building, with a reception a re o connecting to the Pilot Plant Building beyond ^OL. 36. No. 10 (1907) Directors Elect Coming Officers George D. Macbeth, retiring vice-president and controller of Coming Glass Works, was elected an honorary vice president at a recent meeting of the company's Board of Directors. He will continue to serve on the board of direc tors and the executive committee. Other officers named at the meeting include Charles D. LaFollette who was elected to the newly created office of financial vice-president; Thomas Waaland, treasurer; John L. Ward, controller; and Robert W. Foster, assistant con troller. Norman J. Vang was elected vice-president and director of industrial relations. Richard M. Clifford was ap pointed manufacturing manager of the Electrical Products Division. 389 Membership Roster The American Ceramic Society ^N ns Roster of members is published only for the use of members of The American Ceramic Society. Listings are in alphabetical der. A separate Roster for the N ational In stitu te of Ceramic Engineers, showing grades of membership, is on pages R-129 to R-133 this issue. New members received too late to be included are listed in the Addenda on page R-127. These listings give the m em ber's preferred mailing address. Where this is not his business address his company connection is shown parentheses. Divisions and other Society affiliations are indicated in parentheses following each name, in accordance with the code ven below. The absence of any such designation indicates th a t the member is from outside the United States or a student mem ber, :ither of which has Division affiliation. B--Basic Science Division D-- Design Division E--Enamel Division G-- Glass Division M --M aterials and Equipm ent Division R--Refractories Division S--Structural Clay Products Division W-- White Wares Division X -- No Division affiliation F-- Fellow of The American Ceramic Society J--Junior Member I-- National Institute of Ceramic Engineers A BBEY, R. G. (G) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. .BBOTT, Gordon H. Rock Enamel (Pty.) Ltd., Box 77 ; Industria, TVL . Union of South Africa .BBOTT, Russell W. (D) ,, Libbey-Owens-Ford Glass Co. . 1701 E. Broadway, Toledo 5, Ohio BBOTT, William F. (B) -502 W. Ojai Ave., Ojai, Calif. ` (Servomechanism, Inc.) .BE, Tosio 1001, Kami-ikegami-cho, Ota-ku Tokyo, Japan (Tokyo Shibaura Electric Co., Ltd.) .BEAUETHY, Lonnie L. (BI) Instruments, Inc. Lemmon Ave., Dallas 9, Texas iBINGDON POTTERIES, INC. (J. M. Lewis) 801 N. Main St. : Abingdon, 111. .BRAMS, Marvin E. (W) Sentry Sanitary Corp., Box 427 Mannington, W. Va. 3RAM SON, Isaac Av. Atlantica 2856, Apto. 403 Rio de Janeiro, Brazil (Klabin Irm aos & Cia.) G RILLE, A. Villa ` San Miguel Brewery, Inc., 1112 Aviles Manila, Philippines vCCOUNTIUS, Oliver E. (R) , 622 W. Alegria Ave. Sierra Madre, Calif. (Aerojet-General Corp.) ^CHAUER, L. C. (S) -Natco Corp., East Canton, Ohio kCME BRICK CO. (George Puls) ,. Box 425, Fort Worth, Texas * C SPARK PLUG DIV., GENERAL MOTORS CORP. (Karl Schwartzwalder) Flint 2, Mich. U5AMS CLAY PRODUCTS CO. (James A. Cunningham) Box 34, Martinsville, Ind. U3AMS, David E,, Jr. (W) 830 Spring St., Latrobe, Pa. (Carborundum Co.) UJAMS, Edward M. (S) Murray Tile Co., Inc. Cloverport, Ky. a , Milton (G) W. Streicher St., Toledo 8, Ohio hey-Owens-Ford Glass Co.) , P. Bruce (G) Coming Glass Works .;. Research and Development Coming, N. Y. Vol. 36, No. 10 (1957) ADAMS, Roland H. ALBERY, D. F. (SFI) 2208-B Perry Ave., Austin, Texas 1433 23rd St. N. W., Canton 9, Ohio ADAMS, S. L. (G) (Stark Ceramics, Inc.) Joseph E. Seagram & Sons, Inc. ALBON, Derek (R) Seventh St. Rd., Louisville 1, Ky. Saskatchewan Research Council ADAMSTON FLAT GLASS DIV., 1400 McIntyre St. ROLLAND GLASS CO. Regina, Sask., Canada Box 631, Clarksburg, W. Va. ADCOCK, Albert S. (W I) American-Standard 40 W. 40th St., New York 18, N. Y. ADCOCK, Lawrence W., Jr. (B) 1547 Empire Rd., Wickliffe, Ohio (Brush Electronics Co.) ADDERLEY, James R. 42 Church St., Brierley Hill S. Stafford, England (E. J. & J. Pearson Ltd.) ADERHOLD, George H. (W) Saxonburg Ceramics, Box 100 Saxonburg, Pa. ADLER, Arthur (R) Alloy Metal Powders, Inc. 238 Eagle St., Brooklyn 22, N. Y. AFFLERBACH, Harry (E) R.R. 4, Frankfort, Ind. (Ingram-Richardson, Inc.) AGARWAL, Gopal Mohan 23 Gran H atta St., Calcutta 6, India AGARWAL, Shri K. University of Sheffield Dept, of Glass Technology Sheffield 10, England ALBRECHT, Ernst Keramische Fachschule Hoehr-Grenzhausen/b. Koblenz, Germany ALCOCK, Ronald H. "Ferrum" Espaa 402--600, Avellaneda Buenos Aires, Argentina (Ferrum, S. A. de Ceramica y Metalurgia) ALDEN, Charles E. (G) 3427 Heather Downs Blvd. Toledo 14, Ohio (Kimble Glass Co.) ALELUIA, Joao C. F. Av. Araujo E. Silva 59 Aveiro, Portugal (Fabricas Aleluia) ALEN1US, Carl Axel Karhunkatu 28, Karhula, Finland (Foundation for Productivity Research) ALEXANDER, A. E. (W) Buchanan Apts. 8-D 155 E. 47th St., New York 17, N. Y. (Consultant) A. G. DER G ERRESH EIM ER ALEXANDER, John B. (M) GLASHUTTENWERKE (L. Breuer) Southwestern Portland Cement Co. Dusseldorf-Gerresheim, Germany 1034 Wilshire Blvd. AGRON, Albert M. (E) Los Angeles 17, Calif. Pfaudler Co., Taylor St., Elyria, Ohio ALEXANDER, John M. (M I) AGUILAR, L. M. (E) 808 Morewood Ave. Ferro Enamel de Mexico, S. A. Pittsburgh 13, Pa. Calle Oriente 171, No. 450 (Swindell-Dressler Corp.) Mexico 14, D. F., Mexico AGUILAR, Raul (E) Ferro Enamel de Mexico, S. A. Oriente 171 No. 450 Colonia Aragon, Mexico 14, D. F. AHEARN, V. P. (M) National Industrial Sand Assn. Munsey Bldg., W ashington 4, D. C. AKAM, J. W. (S) Natco Clay Products, Ltd Aldershot, Ont., Canada AKMORAN, Miss Huban 1 Cobankizi Sokak Buyukdere, Istanbul, Turkey AKRON PORCELAIN CO. (F. W. Butler) Akron 14, Ohio ALBERS-SCHOENBERG, Ernst (WF) 13-B-3 Redfield Village Metuchen, N. J. (General Ceramics Corp.) ALBERTALLI, Stephen L. (G) ALGEMENE VERENIGING VOOR De NEDERLANDSE AARDEWERK EN GLASINDUSTRIE (W. J. Bollen) Haagweg 139, Rijswijk, Netherlands ALGER, Ferris E. (G) Old York Rd. New Hope, Bucks Co., Pa. (Polytechnic Research & Development Co.) ALLARDICE, James B. (R) A. P. Green Fire Brick Co. 2004 Clark Bldg., Pittsburgh 22, Pa. ALLEGHENY LUDLUM STEEL CORP. (Robert W. Limes), Brackenridge, Pa. ALLEN, Alfred W. (RF) Ceramic Engineering Dept. University of Illinois, Urbana, 111. ALLEN, Ben (G) Coming Glass Works, Corning, N. Y. Corning Glass Works, ALLEN, GERALD L. Harrodsburg, Ky. 1061-E Monroe St., Albany 6, Calif. R oster 1 .LLEN, Ralph (W) 597 Crescent Rd.. Mansfield, Ohio (Ingersoll-Humphryes Div. Borg-Warner Corp.) .LLEN, Richard L. (HI) E. J. Lavino 4 Co., Box 365 Newark, Calif. ,SJ^^kR obert G. (R) G. Allen Co., Box 110 ^B R anicville, N. Y. .LLEN, Walter C. (B) Radio Corp. of America Chemical 4 Physical Lab. 415 S. Fifth St., Harrison, N. J. ,LLEN, Warren W,, Jr. (Si Hydraulic-Press Brick Co. South Park, Ohio tLLIANCE W ARE, LTD. (R. E. Strain) Box 550, Vancouver, B. C., Canada .LLIEGRO, Richard t RJ i 3305 150th St.. Flushing 54. X. Y. (Norton Co.) .LLIS, Deo G.. Jr. (R) 2947 Elsie Ave.. Toledo 13, Ohio (Libbey-Owens-Ford Glass Co.) tLLISON, Adrian G. (R) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio LLMAN, Orin H. (G) Kimble Glass Co. `Owens-Illinois Technical Center '1700 N. Westwood Ave., Toledo 1, Ohio .L T ^ L e a lie lL jddSiMattos Dr., Fremont, Calif. (Kraftile Co.) tLTMANN, Berton G. (B) " ;167.00 Cypress Way, Los Gatos, Calif. . (Kaiser Aluminum & Chemical Corp.) a J O N BRICK CO. (Morris P. Hall) S ox 25, Maryland Heights, Mo. tLTSCHULER, Otto (W) 271 Hawthorne Ave., Langhorne, Pa. ;(Wenczel Tile Co.) XUMINIUM LIM ITED SALES, INC. (R- M. llath ieso n ) 630 Fifth Ave. J ^ k Y o r k 20, N. Y. CO. OF AMERICA W r . Bonebrake) 1501 Alcoa Bldg. Pittsburgh 19, Pa. MERICAN C O LLO ID CO. (Paul Bechtner) 813 Merchandise Mart, Chicago 54, 111. MERICAN CYANAMID CO. (H. C. Milton) 30 Rockefeller Plaza, New York, N. Y. AMERICAN ENCAUSTIC TILIN G CO., INC. . (Robert A. WiUiams, Jr.) 1000 N. Cannon Ave., Lansdale, Pa. AMERICAN GAS ASSOCIATION CC. G. Segeler) 420 Lexington Ave. New York 17..N. Y. AMERICAN LAVA CORP. (R. A. McGinnis) ^Cherokee Blvd. & Mfgrs. Rd. *-lhttanooga 5, Tenn. AMERICAN N E P H E L IN E LTD. (H . R. Deeth) 25 King St. W,, Rm. 2530 Toronto, Ont., Canada MERICAN O PTICA L CO. (A. H. Bennett) Research Center, Southbridge, Mass. MERICAN PO RCELA IN ENAMEL CO. (Robert Long, Sr.) 1285 E. K eating Ave. Muskegon 36, Mich. MERICAN PO TA SH 4 CHEMICAL CORP. (R. M. Curts) 9 Park Ave., New York, N. Y. MMEERRiicCAa N RAD IA TO R 4 S ^ N*Dd a r d SANITARY CORP. 1S. Goodman) 834 E. Broadway J r|viHe 4, Ky. -C an sm e l t in g & REPINING CO. (S. J. Dickinson) South Plainfield, N. J. L- 36, No. 10 (1957) AMERICAN W INDOW GLASS CO. (A. S. Crandon) 20th Floor Farmers Bank Bldg. Pittsburgh 22, Pa. Honorary Members of The American Ceramic Society AMES, R. N. (RI) 10718 S. Morgan St.,-Chicago 43, 111. (U. S. Steel Corp.) AMES, Robert G. (W ) 69 Jefferson Ave., Cresskill, N. J. (B. G. Corp.) AMMERMAX, J. H. (RI) R. R. 2. Wexford, Pa. I North American `Refractories Co.) ANCHOR HOCKING GLASS CORP. (William V. Fisher) Lancaster, Ohio ANCIZAR-SORDO, Jorge Laboratorio Quimico Nacional Ministerio de Minas y Petroleos Apartado 2577, Bogota, Colombia ANDERSON. David O. , Box 1351. Alfred, N. V. A. H. M. Andreason Lawrence E. Barringer Frederick Carder Arthur L. Day J esse T. Littleton Frank H. Riddle Robert B. Sosman Charles \V. T homas W. E. S. T urner Arthur S. Watts Past Presidents of The American Ceramic Society Arthur S. Watts Lawrence E. Barringer ANDERSON, Harlan U. Box 26, Milford, Utah ANDERSON, Harry L. (RI) Republic Steel Corp. Youngstown 1. Ohio ANDERSON, Herbert H. (G) 217 W. 66th St., N. Kansas City 16, Mo. (Gustin-Bacon Mfg. Co.) ANDERSON, Orson L. (G) Bell Telephone Labs., Murray Hill, N. J. ANDERSON, Raymond H., Jr. Box 2560, Virginia Tech. Sta. Blacksburg, Va. ANDERSON, R. E. (W ) Robertson Mfg. Co., Box 848 Trenton 5, N. J. ANDERSON, R. H. (S) Robinson Clay Product Co., Box 545 Dover, Ohio ANDERSON, Robert E. (W) Iroquois China Co., 2320 Milton Ave. Syracuse 9, N. Y. ANDERSON, Robert R. (RJ) 185 Cynthia Dr., Pleasant Hill. Calif. (Gladding, McBean & Co.) ANDERSON, Rupert C. (W ) Valley View, R. R. 10 New Brighton, Pa. Homer F. Staley Frank H. Riddle E. Ward T illotson Robert L. Clare MacDonald C. Booze George A. Bole Emerson P. P oste J ohn C. Hostetter Francis C. F lint R obert B. Sosman Victor \ \ Kelsey Andrew I. Andrews J ohn L. Carruthers J esse T. Littleton Louis J. T rostel E dwin H. Fritz J ames E. Hansen J ohn D. Sullivan J ohn W. Whittemore Hobart M. Kraner J. W. H epplewhite H. R. Lillie W. E. Cramer R. R. Danielson R ay W. P afford Robert T wells Karl Schwartzwalder (Mayer China Co.) ANDERSON, Scott (G) Anderson Physical Laboratory 609 S. Sixth St., Champaign, 111. ANDERSON, Thomas O. 222 Hillcrest Rd., Raleigh, N. C. ANDERSON, William B. (E) Titanium Pigment Corp., I l l Broadway New York 6, N. Y. ANDREASEN, A. H. M. (Honorary) Oster Voldgade 10 Copenhagen K., Denmark (Royal Danish Technical University) ANDREWS, Andrew I. (E F I) University of Illinois 204 Ceramics Bldg., Urbana, 111. ANDREWS, Clifford M. Ferro Enamel S. A., Caixa Postal 2948 Sao Paulo, Brazil ANDREWS, Ray (G) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. ANTAKI, Emile Ferrum S. A. de Ceramica & Metalurgia Espaa 402/600 Avellaneda, Argentina ANTHONY, Benjamin F. (R) Ferro Engineering Co., Box 650S Cleveland 1, Ohio ANTHONY, George H. (R) 41 Marion Dr., Poland, Ohio (Youngstown Sheet 4 Tube Co.) ANTHONY, Harry L,, III (R) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. ANTUNEZ, Florencio (G) Cervecera Moctezuma, S. A. Fabrica de Botellas Apartado Postal 198 Orizaba, Ver., Mexico ANTUNEZ de MAYOLO, Santiago E. Industria Nacional Cermica y Anexos Casilla Postal 845, Lima, Peru AXWYL, Robert H. (S) 202 E. Main St., Smethport, Pa. (Kaul Clay Mfg. Co.) ARANGO, G. Botero Balboa 63-13, Medellin, Colombia (Cristalera Peldar S. A.) ARCHBOLD, Walter H,, Jr. (MI) 125 Smallwood Dr., Snyder 26, N. Y. (Electro Refractories & Abrasives Corp.) ARCHER, James E. (G) Pittsburgh Plate Glass Co. Glass Research Labs., Creighton, Pa ARCHIBALD, W. A. British Iron 4 Steel Research Assn. 140 Battersea Park Rd. London, S. W. 11, England ARCHIE, Chad L. (S) Archie Structural Products Co. P. O. Drawer 312, Corinth, Miss. ARCHIE, Chad L.. Jr. (S) Archie Structural Products Co. P. O. Drawer 312, Corinth, Miss. ARENBERG. C. Arne (B) Armour Research Foundation Technology Center, Chicago 16, 111. R oster 3 d'ARGENTEUlL, Comte L. de Meeus N. V. Cramique Maastricht Postbus 103, M aastricht, Netherlands ARGILAS e MXNERIOS IN D U ST R IA L "AREM INA" S. A. (Tze-Ching Chin) Rua Barao de Jaguara 1024-1030 ^ a o Paulo, Brazil Robert S. (R) ^ ^ ^ V S o u th St., Stamford, Conn. ^ ^ R . S. Aries & Associates) ARKETEX CERAMIC CORP. (George W. Shoemaker) 6 N. Walnut St., Brazil, Ind. ARLETT, Robert H. (VVJ) Rutgers, The State University School of Ceramics New Brunswick, N. J. ARMCO STEEL CORP. (R. S. Burns) Research Library, Middletown, Ohio ARMISTEAD, W. H. (GF) 65 E. First St., Corning, N\ Y. (Coming Glass Works) ARMSTRONG CORK CO. (E. C. Emanuel) Research 4 Development Center Lancaster, Pa. ARMSTRONG, Leland R. (RI) 27 Morgan Ave., Washington, Pa. (Findlay Clay Products Co.) ARNER, William J. (G) ...1607 Watova Rd., Toledo 14, Ohio -'if (Libbey-Owens-Ford Glass Co.) ASKOLD, Howard C. (E F I) `". '76 Standish Blvd., Pittsburgh 28, Pa. . ' (Federal Enameling & Stamping Co.) ARNOLD, Robert M. (W) ' "-(Arnold Engineering Co., Marengo, 111. ARNOLD, Russell E. (SF) j i iB o x E, E. Akron Station .^X lcron 5, Ohio ' ''/..(Robinson Clay Product Co.) ARNOLD, Thomas M. (W I) HljRed Wing Potteries, Inc. vif" Red Wing, Minn. ;^U jj^N C E , Frank C. (W I) .^ ^ ^ f e o rs Porcelain Co., Golden, Colo. m ^ N D A L E , Roy S. (G) ' Thatcher Glass Mfg. Co., Inc. 1901 Grand Central Ave., Elmira, N. Y. ARRAS, George (E) Quadrangle Mfg. Co., 32 S. Peoria St. Chicago 7, 111. ARSEM, William C. (B) 7829 Old Chester Rd. Bethesda 14, Md. (Consultant) Ar t h u r , Edwin p. (G) 31101Las Faldas Dr., Fullerton, Calif. (Beckman Instruments, Inc.) ARWINE, A. S. (R) Refractory & Insulation Corp. Port Kennedy, Pa. As h e r , j 0hn w . (G) . Box 382, Corning, N. Y. . ' ^Com ing Glass Works) .ASHWORTH, GEORGE L. & BROTHERS, LTD. ; . (W. Gordon Evans) - Broad Street Works Hanley, Stoke-on-Trent, England ASQUITH, Milton . Redfearn Brothers, Ltd. Monk Bretton Glassworks Barnsley, England ASSOCIACAO BRASILEIRA DE CERAMICA *: Praca Coronel Fernando Prestes, 110 (Edificio do I.P.T.) Sao Paulo, Brazil ATWELL, George D., Jr. (S) -.. Bickerstaff Brick Co. Box 1178, Columbus, Ga. Konrad F. letstal, Kt. Glarus, Switzerland ,,j--, .TCalkfabrik Netstal Ag.) ADLT, Neil N. (BI) Morton Co., 1 New Bond St. - Worcester 6, Mass. Voc. 36, No. 10 (1957) AUSKERN, Allan (BJ) Westinghouse Atomic Power Div. Box 1468, Pittsburgh 30, Pa. AUSTENAL, INC. ' (R. C. Feagin), Box 625, Dover, X. 1. AUSTERMAN, Stanley B. (B) 7006 Andasol Ave.,-Van Nuys, Calif. (Atomics International) AUSTIN, Arthur O. (B) Box 109, Barberton, Ohio (A. O. Austin Co.) AUSTIN, Charles E. (S) Consolidated Brick Co. Horseheads, N. Y. AUSTIN, Chester R. (R FI) Kaiser Engineers Steel Plants Development Div. 1924 Broadway--Kaiser Bldg. Oakland 12, Calif. AUSTIN, Garth F. 76 E. Second St., Corning, X. Y. AUSTIN, James Bliss (BF) United States Steel Corp. Rra. 2401, 525 William Penn PI. Pittsburgh 30, Pa. AUSTIN, Lewis M. (G) 2334 Middlesex Dr., Toledo 6, Ohio (Owens-Illinois) AVERY, Robert C. Box 826, Alfred, N. Y. AVRIL, Jack J. 8804 Frances Folson Rd., S.W. Tacoma 99, Wash. AYDELOTT, Elliott C. (SFI) Waverly, Pa. (International Salt Co.) AYERS, John W. (M) National Lead Co., Box 1467 Charleston 25, W. Va. AZEVEDO, Marcello R. V. de (I) Caixa Postal 2818, Sao Paulo, Brazil (Ceramica Sanitaria Porcelite S /A ) AZPURUA C., J. A. Industria Venezolana de Vidrios Pianos C. A. Ed. Humboldt Ap. 6, Sur Plaza Altamira Caracas, Venezuela B BAAB, Kenneth A. ( k l) Bethlehem Steel Co., Research Dept. Bethlehem, Pa. BAAK, Tryggve (G) 1321 Old Boalsburg Rd. State College, Pa. (Pennsylvania State Universitv) BAARSON, Robert E. (M) Armour Chemical Div. Flotation Research Section 1355 W. 31st St., Chicago 9, 111. BABA, Paul D. 358 Pennington St., Elizabeth 2, N. J BABCOCK, Clarence L. (GF) 1718 Potomac, Toledo 7, Ohio (Owens-Illinois) BABCOCK, M. G. (G) 618 Kenilworth Dr., Pittsburgh 34, Pa. (Pittsburgh Plate Glass Co.) BABCOCK, Paul R. (W I) Frenchtown Porcelain Co. Frenchtown, N. J. BABCOCK * W ILCOX CO. (J. E. Brinckerhoff) 161 E. 42nd St., New York 17, N. Y. BACH, Carl H. (S) 247 E. Chestnut St., Chicago 11, 111. BACH, William E,, Jr. (M) 7712 Fontana Prairie Village 15, Kans. (Aluminum Co. of America) BACHER, Holland R. (Wr) Rock Tavern, N. Y. (White Cloud Farms, Inc.) BACHMAN, Charles D. (G) 200 Shelburne Rd., R. R. 2 Millville, N. J. (Armstrong Cork Co.) BACHMAN, George S. (G) 151 W. Washington St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) BACHMAN, James R. (R) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio BACHMAN, Wheeler Carr (W) R.R. 5, Grafton, W. Va. (Carr China Co.) BACON, Frank R. (GF) 3153 Darlington Rd., Toledo 6, Ohio (Owens-Illinois) BADGER, Alfred E. (GF) Libbey-Owens-P'ord Glass Co. 1701 E. Broadway, Toledo 5, Ohio BAER, G. M. tRj R. C. Remmev Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. BAGBY. Richard A. (B) 205 E. Market St., Salem, Ind. I Ferro Powdered Metals) BAGLEY, Norman H. (W) 206 Central Ave., Caldwell, N. J. (Bell Telephone Laboratories, Inc.) BAILEY, Floyd (E l) 840 S. Sixth Ave., Kankakee, 111. (A. O. Smith Corp.) BAILEY, Henry R,, Jr. (B) Golding-Keene Co. 226 Main St., Keene, N. H. BAILEY, James (GF) 95 Steele Rd., West Hartford 7, Conn (Plax Corp.) BAILEY, Richard J. Doulton Fine China Ltd. Royal Doulton Potteries Burslem, Stoke-on-Trent, England BAIN, Andrew R. The Whins, 26 Park Terrace Stirling, Scotland BAIR, George J. (GFI) Technical Products Division Coming Glass Works, Coming, N. Y. BAKER, Arvid H. (G) 300 Catlin Ave., Port Allegany, Pa. (Pittsburgh Coming Corp.) BAKER, Burton E. (R) 15 Gwynlake Dr., Baltimore 7, Md. (General Refractories Co.) BAKER, Daniel R. 606 W. Columbia, Champaign, 111. BAKER, D. Martin (W ) 1025 Gardner Blvd., Barberton, Ohio (Ohio Brass Co.) BAKER, Dunbar J. (R) 514 W. High St., Womelsdorf, Pa. (North American Refractories Co.) BAKER, Houston R. (G) 122 Wilson Ave., Lancaster, Ohio (Sharp-Schurtz Co.) BAKER, Robert J., Jr. 1104 W. Stoughton, Urbana, 111. BAKER, Robert L. (G) 46 Highland Ave., Wellsville, N. Y. (Air Preheater Corp.) BAKER, Theodore C. (G) 3742 Drummond Rd., Toledo 13, Ohio (Owens-Illinois) BARREN, A. C , Jr. (M) Aluminum Co. of America 1880 Elmwood Ave., Buffalo 7, N. Y'. BALDAUF, Earl E. (W I) Flamingo Tile Corp., Box 112 Lake Wales, Fla. BALDRY, Stanley F. T. E. R. G. Industrial Corp., Ltd. Luton Rd., Dunstable, Beds London, England BALDWIN, W. J. (W) Titanium Alloy Mfg. Div., National Lead Co., Box C Bridge Station, Niagara Falls, N. Y. BALINA, Marcelo O. C.A.P.E.A. Lanus--KM 7 C Grab Belgrano Buenos Aires, Argentina BALINKIN, Isay fW) University of Cincinnati Cincinnati 21, Ohio R oster 5 BALINT, Louis J. (B) 14185 Story Rd., San Jose 27, Calif. (Kaiser Aluminum & Chemical Corp.) BALL, Albert L. (R) Bay State Abrasive Products Co. Westboro, Mass. BALL BROTHERS CO,, INC. ^^^ u n cie, Ind. J ^ n t J E E , A. ^^B ehar Firebricks & Potteries Ltd. P. O. Mugma, Dist. Manbhum, India BAQUE, Harold \V. (GI) Corhart Refractories Co. 940 Commonwealth Bldg. Louisville 2, Ky. BARBA, Charles E. Jr. (M) Creek Rd., R. R. 1. Doylestovn, Pa. (H arper Electric Furnace Corp.) BARBER, Fred O. (M) 788 Evening St., Worthington, Ohio (Harrop Ceramic Service Co.) BARBER, Stephen W. (G) Owens-Illinois 1700 X. Westwood Ave., Toledo 1, Ohio BARBOUR, David J. (W F) 345 E. Highland Dr., Zanesville, Ohio BARBRE, Norris H. (S) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BARCH, Frank N. (S) Frank N. Barch & Co. 700 Wood St., Pittsburgh 21, Pa. BARIUM REDUCTION CORP. (K. O. Priddy) South Charleston 3, W. Va. BARKER, Harry L. (W) R. R. 4, Salem, Ohio (O. Hommel Co.) BARLETT, Helen B. (BF) ( A C Spark Plug Div. General Motors Corp., Flint 2, Mich. BARNA, Gordon L. R. R. 7, Box 575, Tacoma, Wash. BARNES, Harry H. (BI) |fah Chang Corp., Zirconium Div. l>x 366, Albany, Ore. ES, Wilson R. (R) Corhart Refractories Co. 16th & Lee Sts., Louisville 10, Ky. BARNET, Joaquin " Ceramicas Kli-per Apartado 1243, Havana, Cuba BARNEY, Ronald N. (B) 1331 Prospect Dr.. Kvnlyn Apts. Wilmington 3, Del. (E. I. du Pont de Nemours & Co.) BARON, Jean . Laboratoire de Contrle des Produits Rfractaires 15, Place Carnot Nancy (Meurthe et Moselle) France BARR, Harold N. (B) M artin Co., Nuclear Div. Mail W-711, Baltimore 3, Md. BARR, Harry (M) . Consolidated Feldspar Dept. International Minerals & Chemical Corp. Box 1843, Trenton 7. N. J. BARR, James A., Jr. (M) Texas Power & Light Co. 1518 K St.. N. W. W ashington 5, D. C. BARR, Robert A. (W) Stupakoff Div., Carborundum Co. Latrobe, Pa. BARR, Seymour J. (S) Shenandoah Brick & Tile Corp. Box 32, Winchester, Va. Ba r r e t t , e . l . (R) _ Chas. Taylor Sons Co. * South Shore, Ky. J.ETT, Harvey N., Jr. (R) B33 St. James Parkway __ Cleveland Heights, Ohio ' (Basic, Inc.) Ba r r e t t , Maurice (Life) 8 Oxcliffe Rd. Morecambe and Heysham, England Vol. 36, No. 10 (1957) BARRETT, Wayne E. (S) BATTISTA, George 1127 20th St., West Des Moines. Iowa Box 747, Alfred, N. Y. (Oskaloosa Clay Products Co.) BAUER, Richard M. (M) BARRIX'GER, Lawrence E. 728 St. Louis Ave., Zanesville, Ohio (Honorary, W FI) (Mosaic Tile Co.) 23 Front St., Schenectady 5, X. Y. BAUER, Wolf G. (S) (General Electric Co.) 5622 Seaview Ave., Seattle 7, Wash. BARROWS PORCELAIN ENAMEL (Consulting Engineer) CORP. (Woodrow Carpenter) BAULEKE, Maynard P. (W l Langdon Rd. & Penn R. R. 6910 Meadow Brook Blvd. Cincinnati 13, Ohio Minneapolis 26. Minn. BART. Ronald K. (Minneapolis-Honey well Regulator 503 W. W ashington, Champaign. HI. Co.) BARTA, R. BAUM, Frederick J., Jr. (B) Technicka ul.c.5. E. I. du Pont de Nemours & Co., Inc. Praha XIX, Czechoslovakia Experimental Station, Chemical Dept. (Technical Universitv) Wilmington, Del. BARTHOLOMEW , George A. (S) BAUM, Joseph W. (G) United States Steel Corp. 200 Highland Ave.. Rensselaer, X. V. 525 William Penn Place, Rm. 2210 ISterling-W inthrop Research lust.) Pittsburgh 30, Pa, BAUMANN, Henry N,, Jr. (BFI) BARTHOLOMEW, George L. 1275 Wyoming Ave. 4230 Lewiston Rd. Niagara Falls, N. Y. Niagara Falls, N. Y. (Carborundum Co.) BARTLETT-COLLINS CO. BAUMER, Leon N. (R) (Harrison I. Bartlett) Box 519 240 Rockingham Rd., Pittsburgh 38, Pa. Sapulpa, Okla. (Mellon Institute) BARTLETT, E. E. (G) BAUMLER, Karl (G) 4387 Boca Chica Blvd. Pittsburgh Corning Corp., Sedalia, Mo. Brownsville, Texas BAUSCH * LOMB OPTICAL CO. (Bartlett-Collins Co.) (Murray Scott) Rochester 2, N. Y. BARTLETT, Harrison I. (G) BAXTER, Allen J. (G) Bartlett-Collins Co., Box 519 106 Redwood Dr., Greenville, Ohio Sapulpa, Okla. (Corning Glass W orks) BARTON, Donald E. S. BAYLISS, John M. (R) G. F. K. Refractories Ltd. 629 Frederick St., Lancaster. Ohio 49 Moorgate, London E. C. 2, England (Harbison-W alker Refractories Co.) BARTON, James E. BAY STATE ABRASIVE Box 2435, Clemson College Sta. PRODUCTS CO. Clemson, S. C. (O. S. Buckner) Westboro, Mass. BARZAGHI, Luciano BEALS, M. Douglas (B I) Ceramica Sao Caetano 104 Forest Rd., Fanwood. X. J. Rua Roa Vista, 133-4" andar (Titanium Alloy Mfg. Div.. Caixa Postal 278, Sao Paulo, Brazil National Lead Co.) BASKIN, Yehuda (B) BEALS, Robert J. (W I) Armour Research Foundation University of Illinois Ceramics Dept., 10 W. 35th St. 111 Ceramics Bldg., Urbana, 111. Chicago 16, 111. BEAM, James R. (W FI) BASIC, INC. (H . C. Lee) 300 Ruth Ave., Mansfield, Ohio 845 Hanna Bldg., Cleveland 15, Ohio (Ceramic Engineering Service) BASS, N. W. (R) BEARD, Clinton L. (W I) Brush Beryllium Co., 4301 Perkins Ave. Globe-Union, Inc., 900 E. Keefe Ave. Cleveland 3, Ohio Milwaukee 12, Wise. BASSETT, Leon B. (B) BEARDSLEY, Clinton J. (W) Box 284, Alfred, N. Y. 666 E. Findlay St., Carey, Ohio (State University of New York, (Porcelain Products, Inc.) College of Ceramics) BEASLEY. Dennis R. (G) BASSETT, Ray E. (S) R. 4-Bx38B-Suncrest Lk. Addn. Acme Brick Co., Box 425 Morgantown. W. Va. Fort Worth 1, Texas (Beaumont Co.) BASSETT, Robert (S) BEASLEY, Robert M. (G) Central Commercial Co. Corning Glass Works, Corning, N. Y. Darlington, Beaver County, Pa. BEASLEY, William D. BATEMAN, L. A. (E) Johnson Brothers (Hanley) Ltd. Eljer Co., Enamel-Ware Div. Stoke-on-Trent, England Salem, Ohio BATES, A. Allan (B) BEATHARD, Robert K. (W) General Tile Corp., Box 38 Portland Cement Assn. 33 W. Grand Ave., Chicago 10, 111. BATES, Charles E. (S) 128 W alnut St., Brookville, Pa. (Hanlev Co.) BATES. Frank O. (B) 9227 Eighth Ave., Inglewood 4, Calif. (H. F. Coors Co., Inc.) BATES. P. H. (Life, XF) 1620 Seventh St., N., St. Petersburg, Fla. BATES, W. S. (R) Spectrochemical Labs., Inc. 1010 Wood St., Pittsburgh 21, Pa. BATESON, H. Marshall 68 Spring Grove Loughton, Essex, England (Thermos, Ltd.) BATESON, Sydney (G) Duplate Canada Ltd. El Segundo, Calif. BEATON. Orville (R) ' Gem Clay Forming Co., Sebring, Ohio BEAVER. Wallace W. (B) Brush Beryllium Co., 4301 Perkins Ave. Qeveland 3, Ohio BEAZELL, William H. (G) American Window Glass Co. 20th Floor, Farm ers Bank Bldg. Pittsburgh 22, Pa. BEBBINGTON. Philip J. (R) 30 Exeter St.. Morris Plains, N. J. (Austenal, Inc.) BECHTNER. Paul (M) American Colloid Co. 813 Merchandise Mart, Chicago 54. 111. BECK, Elmer W. (M) Ceramic Supply Co., Crooksville, Ohio Oshawa. Ont., Canada BECK. J. Howard (M) BATRUK. Stanley J,, Jr. (E) BTU Engineering Co. New Jersey Zinc Co. 440 Somerville Ave. 160 Front St., New York 38. N. Y. Somerville 43, Mass. R oSTF.K 7 BECK, Norman R. (G) BELLE, Jack (B) Carr-Lowrey Glass Co. Westinghouse Electric Corp. Baltimore 3, Md. . Atomic Power Div., Bettis Field BECK, Warren R. (B) Box 1468, Pittsburgh 30, Pa. Minnesota Mining & Mfg. Co. BELLIDO, Bartolom Darnis 900 Fauquier Ave. Director Gerente 3e M E R S A ^ t . Paul 6, Minn. Lugones (Oviedo), Spain B ^H E M E Y E R , Harry J. (W) BELOW, Henry (W) ^^^Hiversal-Rundle Corp. Pennsbury Pottery, Morrisville, Pa. Keith McAfee Lab., Box 1268 BENBENEK, Raymond (SI) Mahoningtown, Pa. Canada Brick, Ltd. BECKER, Bruce N. (.G) Streetsville, Ont., Canada 629 New Holland Ave., Lancaster, Pa. BENDER, John H. (R) (Radio Corp. of America) Denver Fire Clay Co., Box 5510 BECKER, Martin G. (S) Denver 17, Colo. Brookhaven Pressed Brick & Mfg. Co. BENEDICT, Virginia Box 542, Brookhaven, Miss. American Ceramic Society BECKER, Walter D. (S) 4055 N. High St., Columbus 14, Ohio Brookhaven Pressed Brick & Mfg. Co. BENJAMIN ELECTRIC MFG. CO. Box 542, Brookhaven, Miss. (Hoyt P. Steele) Des Plaines, 111. BEEBE, Donald R. BENNER, Stanley G. (E) 12126 S. Perrv Ave., Chicago 28, 111. Johns-Manville Research Center BEECHER, Milton F. (R F I) Manville, N. J. 50 Woodland Rd., Holden, Mass. BENNETT, A. H. (G) (Norton Co.) American Optical Co., Research Center BEELER, L. S. (W ) Southbridge, Mass. Reynolds Metals Co., 2500 S. Third St. BENNETT, A. Lee (SFI) Louisville 1, Ky. 1830 Las Flores Dr., Glendale, Calif. BEERMAN, Henry P. (B) (Pacific Clay Products) Radiation Electronics Corp. BENNETT, Dwight G. (E FI) 8241 N. Kimball Ave., Skokie, 111. 204 Ceramics Bldg. BEERS, Roland F. (B) University of Illinois, Urbana, 111. Box 1019, Troy, N. Y. BENNETT. Frederick R. (R) (Roland F. Beers, Inc.) Box 325, Hartsville, S. C. BEETON, Earl E. (GI) (Carolina Refractories Co.) 1604 Lincoln St., Bethlehem, Pa. BENNETT, Marvin (W) (Western Electric Co.) 1100 Gilham St., Philadelphia 11, Pa. BEGGEROW, Charles W. (I-T-E Circuit Breaker Co.) 309 Osceola Ave., Lake Wales, Fla. BENNETT, Myles P. (BI) BEGIEN, Virginia 6552 N. Oldham Lane American Ceramic Society San Gabriel, Calif. 4055 N. High St. (Gladding, McBean & Co.) Columbus 14, Ohio BENNETT. Philip M. (R) BEGLEY, Hiram C. (S) 215 Amboy Ave., Metuchen, N. J. ^ o rb in Brick Co.. Box 574, Corbin, Ky. (Such Clay Co.) EU ^A r FIREBRICKS & BENNETT. W alter R. (S) ^ W r T E R I E S LTD. (A. Banerjee) Acme Brick Co., Millsap, Texas O. Mugma, Dist. Manbhum, IndiBa ENSON, Edward (R) BEHREND, Oswald (R) New Departure Div. 2557 Robinwood, Toledo, Ohio General Motors Corp., Bristol, Conn. (Owens-Illinois) BENTZ, George B. (M) BEHRINGER, H. L. (G) National Plumbing Pottery, Inc. Tygart Valley Glass Co. 305 N. Front St., Columbus 15, Ohio Washington, Pa. BENZEL, James F. BEINLICH, Alfred W. (R) 297 Front St., Berea, Ohio 3404 19th Ave., Sheffield, Ala. BERG, Morris (B) (Tennessee Valley Authority) 315 Pleasure Rd., Lancaster, Pa. BEINLICH, Justus J. (R) (Radio Corp. of America) United States Steel Corp., Room 2421 BERGER, Bernard M. (E) 525 William Penn Place Dept 817, Sears, Roebuck & Co. Pittsburgh 30, Pa. 925 S. Homan Ave., Chicago 44, 111. BELANDRES, Constante BERGER, Donald F. (G) Philippine Bureau of Mines 210 Benjamin Rd., North Madison, O. Herran St., Manila, Philippines (Diamond Alkali Co.) BELD, George H. (E) BERGERON. Clifton G. (E l) Kelvinator Div. University of Illinois American Motors Corp. Dept, of Ceramic Engineering 1600 Clyde Park Ave., S. W. Urbana, 111. Grand Rapids 9, Mich. BERG-IVERSEN, Wiggo BELKOWSKI, A rthur V. (W) A /S Egersunds Favancefabriks Co. 454 Convery Blvd. Egersund, Norway Perth Amboy, N. J. BERKELHAMER, Louis H. (E l) (New Jersey Porcelain Co.) 3621 W. Howard St., Skokie, III. BELL, Clarence D. (WJ) (Ohmite Mfg. Co.) 410 N. Seventh St.. Cambridge, Ohio BERNARDINI, Guy F. (W) (Champion Spark Plug Co.) Box 19, R. R. 1, Latrobe, Pa. BELL, Kenneth E. (S) (Stupakoff Div., Carborundum Co.) 349 Laasse Ave., Apt. 6 BERNHARD, Herbert L. (R) Eastview, Ont., Canada 2017 Shirley Ave., Augusta, Ga. (Ottawa Brick & Terra Cotta Co., Ltd.) (Babcock & Wilcox Co.) BELL, Richard (M) BERNS, Milton H. (M) Bseelll Cc lay Co., Gleason, Tenn. 249 Charlotte Ave., Hamburg, N. Y. BbEeLl Ll aAmMY, H arry T. (R) (Electro Refractories & , American Embassy, Abrasives Corp.) 74, Box K BERRY, Thomas F. (B) Francisco, Calif. 527 34th St., Union City, N. J. (Armour Research Foundation) (Radio Corp. of America) BELLAMY, L. B. (R) BESSE, Richard W. (W) Abrasive & Metal Products Co. Onondaga Pottery Co., 2900 Court St. 729 Meldrum Ave.. Detroit 7, Mich. Syracuse. N. Y. ^ol. 36, No. 10 (1957) BESSEY. George E. Chalk Lime & Allied Industries Research Association, 30a Church St. Welwvn, Herts, England BEST, Edison F. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio BEST, WILLIAM S. (S) R.R. 3, New Bethlehem, Pa. (New Bethlehem Tile Co.) BESTHOFF, Anthony W. (GJ) Faesy & Besthoff. Inc. 23-25 E. 26th St., New York, N. Y. BESTUL. Alden B. (Bl 5121 Newport Ave. W ashington 16, D. C. (National Bureau of Standards) BETHLEHEM STEEL CO. (Hobart M. Kraner) Bethlehem, Pa. BETTISON, L. S. (S) Chambers Brothers Co. 52nd & Media St., Philadelphia 31, Pa. BETZ. George C. (W FI) Metal & Thermit Corp. 100 Park'Ave., New York 17, N. Y. BETZ. Wilbert A. (W ) U. S. Potters Assn. 104 E. Fourth St., East Liverpool, Ohio BEVIS, Ralph E. (E l) 1815 N. Park Blvd. Cleveland Heights 6. Ohio (Ferro Corp.) BEYER, George I. (E) Hall Ave., St. Marys, Pa. (Pure Carbon Co.) BEZBORODKO. David (G) Mechanical Mirror Works, Inc. 661-663 Edgecombe Ave. New York 32, N. Y. B. G. CORP. (N. Heilman. I l l ) , 321 Broad Ave. Ridgefield, N. J. BHALLA, Amrit K. (W ) National Tile & Mfg. Co. 1200 E. 26th St.. Anderson. Ind. BICKERSTAFF CLAY PRODUCTS CO. (L. N. Bickerstaff) Box 1178 Columbus, Ga. BICKERSTAFF, L. N. (S) Bickerstaff Clay Products Co. Box 1178, Columbus, Ga. BICKFORD, Fred A. (G) Box 29, R.R. 2, Campbell, N. Y. (Corning Glass Works) BIDDLE, George J. (R) 208 S. LaSalle St., Chicago 4, 111. (Illinois Clay Products Co.) BIDDULPH, Albert 11 Holden Rd. Wolverhampton, England (Ferro Enamels Ltd.) BIELSTEIN, Hans O. (R) Aeronautical Research Lab. (WCLJL) Metallurgy Research Branch WADC, Wright-Pattersrm AFB, Ohio BILLHEIM ER, John E. (WJ) Highwood, Easton Ave. New Brunswick, N. J. (Mitchell-Bissell Co.) BILLIAN, Carroll J. (G) Owens-Illinois General Research Div. 1700 N. Westwood Ave., Toledo 1, Ohio BINDER. David G. 209 E. Armory, Champaign, 111. BIONDI, Joe 2310 E. 52nd St., Los Angeles 58, Calif. BIRCH, Raymond E. (R F I) Harbison-W alker Refractories Co. 307 Fifth Ave., Pittsburgh 22. Pa. BIRSE, Alexander L. John G. Stein & Co., Ltd. Bonnybridge, Scotland BISH OP, Frederic L. (GF) Kimble Glass Co. Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7. Ohio Roster 9 SHOP, George J., I l l (S) Columbia Brick & Tile Co. Box 3-7, Columbia, S. C. SHOP, Harold E. (G) Owens-Coming Fiberglas Corp. Anderson, S. C. SH OP, Laverne R. IR j M k in u m Co. of America ^ ^^ lissouri Ave., East St. Louis, 111. S ^ P P Don \V,, Jr. (R I) 703 Green St., Rockton, 111. (Ipsen Ceramics Inc.) SSET, Ronald \Y. i\Vl Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. STLINE, Walter A. ( GJ I Pittsburgh Plate Gla^s Co. Creighton. Pa. XBY, Henry D. (S) Central Commercial Co. Darlington, Beaver County, Pa. .ACK, H. R. (G) Kimble Glass Co. 1700 N. Westwood Ave., Toledo, Ohio -ACKBURN, A. Reif (MI) 204 N. State St., Westerville, Ohio (Ram, Inc.) -ACKMAR, Robert J. Box 1038. Alfred, X. Y-. -ACKWOOD, James M. (RI) 124 First St., Niagara Falls, N. Y. (Carborundum Co.) .AES, Henry M,, II (B) 339 N. Hoover Ave., Whittier, Calif. (North American Aviation) .AHA, Emil (R) 415 Ashmead Rd., Cheltenham, Pa. (Selas Corp. of America) .A IR , Gerald E. 511 E. Foster Ave., State College, Pa. .A IR , Marion W. (SF) 2131 S. Center St., Terre Haute, Ind. (Manufacturers Equipment Co.) .A IR , W'illiam H. (M) 3936 Bryn Mawr Dr., Dallas, Texas Commel Co.) , Pierre e des Electrodes & taires "Savoie" 16, Rue de Monceau, Paris 8*, France .A K E , William V. (RI) Macklin Abrasive Co., Jackson, Mich. LAKELY, Alexander M. (B) Precision Grinding Wheel Co., Inc. 8301 Torresdale Ave. Philadelphia 36, Pa. LANCHARD, M. Kenneth (E) A. O. Smith Corp., 3533 N. 27th St. Milwaukee 1, Wise. ' LAU, Henry H. (GFI) Federal Glass Co., 515 E. Innis Ave. Columbus 7, Ohio LAZE, Joseph E., Jr. 3B2o8x6 1W53e, sAtelrfnredA,vNe.. Y. LAHZiOghVlIaCn,d PPhailr,kJ, r1.11(.M) (Consolidated Feldspar Dept. International Minerals & Chem. Corp.) 1.ECHEISEN, J. (E) Rosiclare Lead & Fluorspar Mining Co. Rosiclare, 111. LENKO, William Henry, Jr. (G) 1412 Main St., Milton, W. Va. (Blenko Glass Co., Inc.) LESSING, Robert Lee (SI) 1714 Crestwood Dr. Mineral Wells, Texas (Texas Vitrified Pipe Co.) L-lIbSbS, RHo derick T. (S) C( enter St., Nesquehoning, Pa. |te r Concentrator Co.) (il"lJiearmaldSt., Tonawanda, N. Y. LOCKSIDGE, Arthur B., Jr. (R) Jones il& Laughlin Steel Corp. 40 Longworth St., Pittsburgh 7, Pa. OL..:$(. N o . 10 (10.7) BLODGETT, William E. (\V) BOLZ, Leonard H. (B) 11 Lakeview Terrace, Woburn, Mass. National Bureau of Standards, Div. 9 : 7 I R. Gustavino Co.) Conn. Ave. & Van Ness BLOME, James C. Washington 25, D. C. 22? S. Pennsylvania Ave. BONDS. Barbara C. Belleville, 111. R. R. 1. Box 205, lone.-boru. Ga. BLOOM, Ray A. (R) - BONEBRAKE, H. P. (M) Technical Library Aluminum Co. of America Timken Roller Bearing Co. 1501 Alcoa Bldg.. Pittsburgh 19, Pa. Canton 6, Ohio BONNOT CO. (B. T. Bonnot) BLOORE, Robert Boulton 722 Mulberry Rd., S. E., Canton 2, Ohio Swinnertons, Ltd. BONNOT, B. T. (MF) Hanley, Stoke-on-Trent, England Bonnot Co., 722 Mulberry Rd., S. E. BLOUNT. Bruce (W) . Canton 2, Ohio Gilmer Potteries, Inc.. Box 489 BONSTE1N, Thomas E. (V ) Gilmer. Texas Paper Makers Importing Co., Inc. BLUE RIDGE GLASS CORP. 44 S. Second St., Easton, Pa. (J. H. Lewis) Kingsport, Tenn. BOOTH, John F. BLUM, Seymour (WI) Hazlehead Hall, Penistone, Nr. Sheffield Raytheon Manufacturing Co. Sheffield, York, England Research Div. (Hepworth Iron Co., Ltd.) Waltham, Mass. BOOY. Emmy C. BLUME, Arthur J. (SI) Box "5". Alfred. N. Y Murray Tile Co., Cloverport, Ky. BOOZE. M. C. (RED BLUM ER, Fridolin (D) 4725 Walton Creek Rd. Lane Gate Rd. Cincinnati 27, ( )hio Cold Spring, Putnam Co., N. Y. IConsultant) (Commercial Decal, Inc.) BOPP. Charles D. (B) BLUNT, Royden A. (GF) 620 W. Vanderbilt Dr. Buck Glass Co., 841 E. Fort Ave. Oak Ridge, Tenn. Baltimore 30, Md. (Oak Ridge National Lab. I BLYTHE COLOUR WORKS, LTD. BOPP, Harold F. (GF) Cresswell, Stoke-on-Trent, England 67 Gorton St., Corning, N. Y. BOARDMAN, Charlotte K. (R) (Corning Glass Works) Thomas A. Edison, Inc. BOROFSKY. Arnold J. (R) 51 Lakeside Ave., West Orange, N. J. Fenwal. Inc., Ashland. Mass. BOBROWSKY, A. R. (R) 2012 Pontiac Rd., Ann Arbor, Mich. (Nucor Research, Inc.) BOROS, John (W) Pacific Tile & Porcelain Co. 7716 E. Olive St., Param ount, Calif. BOEKER, V. W. (GI) Owens-Coming Fiberglas Corp. 598 Madison Ave., New York 22, N. Y. BORRELLO. Giuseppe Cornigliano, Piazza Dante 7 Genova, Italy BOGATAY, Paul (D) 45 W. Weisheimer Rd. Columbus 14, Ohio (Ohio State University) BOSCH, F. M. Lab. Anorganisch-Tech. & Electro chemie 22 Plateaustraat, Ghent, Belgium BOGNAR, Edwin J. (R I) Bognar & Co.. Inc. 1711 First National Bank Bldg. Pittsburgh 22, Pa. BOHLIXG, Wlliam C. 1305 E. Sixth. W ashington. Mo. BOHN, Edward L. (R) Mullite Works. Refr. Div. H. K. Porter Co.. Inc. 10 Canal St.. Shelton, Conn. BOLANOVICH, Melvin (S) 3118 Palmer Sq., Chicago 47, 111. (Illinois Brick Co.) BOLE, George A. (XF) Engineering Experiment Station Ohio State University Columbus 10, Ohio BOLES. Sara J. Iowa State College Elm Hall, Ames, Iowa BOLIN. William J. (E) American Zinc Sales Co. Box 327, Columbus. Ohio BOLINGER, Phillip N. 2247 Grassmere Ave., Columbus 11, Ohio BOLLEN, W. J. Algemene Vereniging voor de Nederlandse, Aardewerk en Glasindustrie, Haagweg 139 Rijswijk, Netherlands BOSLER. Krell (W) 1000 Yorkwood Dr., Mansfield. Ohio ( Ingersoll-Humphryes Div. Borg-Warner Corp.) BOTFIELD, George B. (R) Botfield Refractories Co. Swanson & Clymer Sts. Philadelphia 47, Pa. BOTFIELD REFRACTORIES CO. (George B. Botfield) Swanson & Clymer Sts. Philadelphia 47, Pa. BOTHE, James V. (G) 3 Pyrex St., Corning, N. Y. (Coming Glass Works) BOUDER, Norman M., Jr. (G) 913 Northern Pky., Baltimore 12, Md. (Pemco Corp.) BOURGERIE, R. D. (W) Radio Materials Corp. 3325 N. California Ave., Chicago 18, 111. BOVARD, Richard F. (G) Pittsburgh Plate Glass Co., W'orks #10 Henryetta, Okla. BOVEE, Benedict A. (M) 1837 W'inter Rd. Grand Island, R.F.D., N. A. (H arper Electric Furnace Corp.) BOWDEN, James J. (B) Bowflux Co., Box 65, Cortland, Ohio BOLLINGER, Robert H. (MI) Georgia Kaolin Co., 433 N. Broad St. Elizabeth 3, N. J. BOWEN ENGINEERING, INC. (W'illiam A. Bowen) North Branch, N. J. BOLON, David G. (R I) R. R. ]9. Box 381. Indianapolis. Ind. BOWEN. Robert G. 273 " B" St.. Clemson. S. C. (Manufacturers' Agent) BOLTON, Harry L. (R) Philadelphia Quartz Co. BOWEN. W'illiam A. (W) Bowen Engineering, Inc. North Branch, N. J. Public Ledger Bldg. Independence Square Philadelphia 6, Pa. BOWER, David N. (Gi 3915 Elmhurst. Toledo 13, Ohio (Ou ens-Iilinois) R o ster 11 OWERS, Donald J. (B) 950 Highland Dr., Columbus 21, Ohio (Battello Memorial Institute) OWES, Urban E. (GF) 315 E. Front St., Perrysburg, Ohio (Owens-Illinois) CLN, Donald C. (E) Craig PI., Lombard, 111. TWncago Vitreous Corp.) OWMAN, D. Scott (M) Carborundum Co., Globar Div. Niagara Falls, N. Y. OWMAN, Eugene D. (G) 1217 Carolwood Ave. Columbus 13, Ohio (Kimble Glass Co.) lOWMAN, George A. 402 E. Armory, Champaign, 111. lOWMAN, James A. Box 1286, Georgia Tech. Sta. Atlanta, Ga. lOWMAN, John G. (W) 341 S. Juliana St., Bedford, Pa. 30WMAX, Robert R. (R) Harbison-Walker Refractories Co. 609 Jackson Bldg., Buffalo 2, N. Y. 30W N E, Martin S. (SI) Lee Clay Products Co., Inc. Clearfield, Ky. BOYCE, Joseph (M) Vitro Mfg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. BOYCE. Robert E. (W) Harker Pottery Co. East Liverpool, Ohio BOYD. Frank H. (M) " S. G. Franti Co., Inc. Box 1138, Trenton 6, N. J. BOYD, John E. (M I) Box 2414, Greensboro, N. C. (Carolina Pyrophyllite Co.) BOYD, L. R., Jr. (S) Teague Brick & Tile Co., Box 329 ^ Je a g u e , Texas Robert C. (E FI) ^ ^ H U ric a n Standard, 1541 S. Seventh St. ^Louisville 8, Ky. BOYD, William W. (W) 11528--39'h N. E.. Seattle 55, Wash. (J. R. Sir.plot Co.) BOYLES, John P (W) Edwin M wies China Co. Newell, W . .. BOYNTON, Cla .. .i G. (DF) 54 E. Cedar. Chicago 11, 111. (Industrial Publications, Inc.) BOYN-'-'N, Robert S. (X) Na Assn. 925 W. WasL BOZZO, J. Pierce C \ve. Port Alle, BRACKBILL, 550 W. Brown St. New Lexington, Ohio (Ludowici-Celadon Co.) BRADDY, John E. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio BRADEN, Roger W. (M) Hammond Lead Products 526 Calumet Bldg., Hammond, Ind. BRADEN, William E. Ferro Corp., Far East Div. Box 6130, Kowloon, Hong Kong Br a d fo r d , virgii e . (W) 126 Cochran Way, Apt. 20 New Castle, Pa. ^ ^ ^ n iv e r s a l- R u n d le Corp.) ^ ^ B l EY, Alan L. ^ H n li n a n Refractories Ltd. ~P. O. Olifantsfontein Transvaal, South Africa BRADLEY, Charles A,, Jr. (G) Pinewood Acres, R. R. 3, Corning, N. Y. (Corning Glass Works) Vol. 36, No. 10 (1957) BRADLEY, Fennim ore N. (W l) 940 Oregon St., Palo Alto, Calif. (Lockheed Aircraft Corp.) BRADLEY, Richard S. (RF1) 4 Park Circle, Mexico, Mo. (A. P. Green Fire Brick Co.) BRADLEY, Robert E. 3004 Cardinal Dr., Augusta, Ga. BRADSTREET, Samuel W. (E) Armour Research Foundation 10 W. 35th St., Chicago 16. 111. BRADWELL, Cyril (R I) Parkhurst Apts. 7B Barbara & Marion Sts., Bethlehem, Pa. (Bethlehem Steel Co.) BRADY, Earl (S) Box 52J, Waskom, Texas (Acme Brick Co.) BRADY, John G. (B) Dept, of Mines & Technical Surveys Ceramic Section, 4 0 'Lydia St. Ottawa, Ont., Canada BRADY, Justin M. (M) 1320 N. Delaware, Apt. 604 Indianapolis, Ind. (American Art Clay Co.) BRADY, T. E. (R) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio BRAIN, Douglas G. (W) 1960 Jane St. Toronto 15, Ont., Canada (American Standard Products) BRAMLETT, William P., Jr. (GI) Cumberland Rd., R.R. 2, Millville, N. J. (Armstrong Cork Co.) BRAND, Robert C. (G) Dominion Minerals Div. Riverton Lime & Stone Co. Piney River, Va. BRANDES, Eric A. Fulmer Research Institute Ltd. Stoke Poges, Bucks, England BRANDT, Kristian H. (B) 1076 Karesh Ave., Pomona, Calif. (Convair) BRANDT, Martha W. (G) National Glass Budget 916 Empire Bldg., Pittsburgh 22. Pa. BRANDT, Neill M. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BRANDT. William O. (R F I) Gladding, McBean & Co. 945 Elliott Ave.. W. Seattle 99, Wash. BRANT, A rthur M. (R) 156 Hampden Park Dr., Tiffin, Ohio (Basic, Inc.) BRANT, David G. (R I) 39 Valley View, Tiffin, Ohio (Basic, Inc.) BRASHARES, C. A. (R) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. BRASSFIELD, Henry C. (B) R.R. 1, Stevens Rd., Foster, Ohio (General Electric Co.) BRATSCHUN, William R. University of Illinois 204 Ceramics Bldg., Urbana, III. BRAUN, Gary A. Box 827, Alfred, N. Y. BRAY. A. C,, Jr. (S) Western Clay Manufacturing Co. Box 176, Helena, Mont. BRAY, Kenneth J. (W) Wenczel Tile Co. Klag & Enterprise Ave. Trenton, N. J. BRAYKOVICH, A. F. (W) 109 W estgate Dr., Mansfield, Ohio Brazilian Ceramic Society-- see Associacao Brasileira de Ceramica BRECK, Donald W. (B) Linde Air Products Co. E. Park Dr. & Woodward Ave. Tonawanda, N. Y. BREEDLOVE, James G. (BI) 703 James Blvd. Signal Mountain, Tenn. (American Lava Corp.) BREEN E, George A. (G) Industrial Colloids Co. Emlenton, Pa. BREEZE, Lewis K. (E) 501 E. 288th St., Willowick, Ohio (Glascote Products, Inc.) BRE1TW1ESER, Robert H. (R) 160S Bunker Hill Rd.. Pueblo. Colo. (Standard Fire Brick Co.) BREMKER. Robert P. (G) T. L. Smith Co., 2835 X. 32nd St. Milwaukee 11, Wise. BRENNER, Harold M. (E) B. F. Drakenfeld & Co., Inc. Washington, Pa. BRENNER, R. F. (GF) Anchor Hocking Glass Corp. Lancaster, Ohio BRESLICH, Francis N., Jr. 3908 14th Ave., S., Seattle 8, Wash. BRETZ, L. A. (S) 1718 Theodan Dr., Pittsburgh 16, Pa. (NATCO Corp.) BREUER, L. A. G. der Gerresheimer Glashuttenwerke Dusseldorf-Gerresheim, Germany BREWER, Bob (S) Alamo Clay Products Co., Inc. Box 93, Elmendorf, Texas BREWSTER, Gordon F. (G) 807 Ridge Road E., Williamson, N. Y. (Bausch & Lomb Optical Co.) BRIAN, Charles (B) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. BRIAN, Dick (W ) 422 Florida Ave., Chester, W. Va. (Harshaw Chemical Co.) BRIAN, S. Douglas (M) Paper Makers Importing Co., Inc. 44 S. Second St., Easton, Pa. BRICKHOUSE, Robert E. (R) 206 Fairlawn Blvd., Zelienople, Pa. (Johns-Manville) BRIGGS MANUFACTURING CO. (A. J. Raible) 415 W. Seymour Ave. Cincinnati 16, Ohio BRIGHAM, Ralph V., Jr. (W I) Onondaga Pottery Co. 1858 \V. Fayette St., Syracuse 1, N. Y. BRIGHT, Norman F. H. (B) Dept, of Mines & Technical Surveys 522 Booth St., Ottawa, Ont., Canada BRINCKERHOFF, J. E. (R) Babcock & Wilcox Co. 161 E. 42nd St., New York 17, N. Y. BRINDLEY, George W. (B) Dept, of Ceramic Technology Pennsylvania State University University Park, Pa. BRINKMAN, Robert J. (E) 101 Mossoak Dr., Apt. 3 Dayton 9, Ohio (Frigidaire Div., General Motors Corp.) BRISBANE, S. M. 40 Riverdale Rd., Hawthorn E2 Victoria, Australia (Commonwealth Scientific & Industrial Research Organization) BRISTOW, Robert H. (WI) 4 Sequoia Rd., R. R. 1 Ballston Lake, N. Y. (General Electric Co.) BRITCHER. Gordon (S) 306 Berkeley Dr., Syracuse 10, N. Y. (Syracuse Pottery, Inc.) BRITISH CERAMIC SOCIETY Federation House Stoke-on-Trent, England BRITTAIN'. Clifford G. (RJ) Zero Autumn St., Worcester, Mass. (Norton Co.) R o ster 13 BRITTON, Marvin G. (B) BROWN, William E. (R) 121 Hornby Dr., Painted Post, N. Y. Box 217, R.R. 1, Norristown, Pa. (Corning Glass Works) (E. J. Lavino & Co.) BROCKWAY GLASS CO.. INC. BROWN, W. Richard (F. B. Hess) Brockway, Pa. 8 X. Gilmore Blvd. BROCKWAY, M. Clifford (B) Wappingers Falls* X. Y. ^ ^ ^ 6 6 1 Medary Ave., Columbus 2, Ohio BROWXE. Charles M. (Gi ^ ^ ^ K a tte lle Memorial Institute! Libbey-Owens-Ford Glass Co. ^ K l E . William T. (W) 1701 E. Broadway, Toledo 5. Ohio R. 3, K ittanning, Pa. BROWNE, Thomas C. (RI) (Eljer Co.) 2115 Orchard Dr. BROOKE, Stanley South Plainfield, N. J. Oughtibridge Silica Firebrick Co., Ltd. (Titanium Div., National Lead Co.! Oughtibridge, Sheffield, England BROWNELL. Wayne E. (SI! BROOKOVER, George B. (G) State University of New York 3735 Maxwell Rd., Toledo 13. Ohio College of Ceramics, at Alfred U nit. (Kimble Glass Co.) Alfred. X. Y. BROOKS, Marion E. (S) BROW NEW ELL. George E. ;R | Bickcrstaff, Inc. Diamond Alkali Co. Box 1178, Columbus, Ga. 4701 Paddock Rd.. Cincinnati 2`J. Ohio BROOKS, Robert H. (W) BROWNING, William C. (B> 1738 Pavilion Dr., Pomona, Calif. Milwhite Mud Sales Co. (Norris-Thermador Corp.) 1092 M & M Bldg., Houston. Texas BROSIUS, John P. (G) BRCCHMANN, Helmut IW) 403 Emerson Ave., Aspinwall Haeger Potteries, Inc., Dundee, 111. Pittsburgh 15, Pa. BRUEGGERHOFF, Charles (R) (Krieg Piston Ring Co.) Mexican Zinc Co., N. Rosita BROSKE, William F. (B) Coahuila, Mexico AMP Inc.. Eisenhower Blvd. BRUHN, Hans W. (R) Harrisburg, Pa. Corhart Refractories Co., Inc. BROWER, William S., Jr. (W J) 1600 W. Lee St., Louisville 10, Ky National Bureau of Standards, BRUNNER, Cedric D. (W ) . Div. 9.0 106 W. Union, Rockton, 111. W ashington 25, D. C. (Ipsen Ceramics, Inc.) BROWN, C. Justus, Jr. (G) BRUNO, Lucien V. (S) , . Libbey-Owens-Ford Glass Co. Guignard Brick Works 1701 E. Broadway, Toledo 5, Ohio Columbia, S. C. BROWN, Clarence B., Jr. (M) BRUSH, George D. (SI) Hardinge Co., Inc., York, Pa. Harrop Ceramic Service Co. BROWN, Colin C. (G) 35 E. Gay St., Room 413 21 Medbury Ave., Cuba, N. Y. Columbus 15, Ohio (Cuba Cheese & T rading Co.) BRYANT, Eugene E. (E F I) BROWN, Donald Nicol (G) Ferro Corp., 4150 E. 56th St. 4 E. Third St., Corning, N. Y. (Corning Glass Works) fcVN, Donovan P. (RI) *704 Eldon Ave., Drexel Hill, Pa. (North American Refractories Co.) BROWN, Dwight R. (W) 5 Edgewood Lane. Levittown, Pa. (Trenton Potteries Co.) BROWN, George L. (M) Cleveland 5, Ohio BRYCE, Homer L. (S) Henderson Clay Products, Box 870 Henderson, Texas BUCHAN, Charles R. 419 E. Georgia St., Tallahassee. Fla. BUCHAN, M. A. (R I) A. P. Green Fire Brick Co. Troy, Idaho BUCK. Forrest W., Jr. (E! 35 Broad St., Park Manor Apt. E-S 27 S. VanDien Ave., Ridgewood, N. J. (Lithium Corp. of America, Inc.) Toms River, N. J. (Lithium Corp. of America! BROWN, George Reuben (M) BUCK GLASS CO. (Royden A. Blunt! North American Mfg. Co. 841 E. Fort Ave., Baltimore 30, Md. 4455 E. 71st St., Cleveland 5, Ohio BUCK. Ivan E., Jr. (E) BROWN, John J,, Jr. (SI) 1025 Park Ave., Plainfield. K. J. Redford Brick Co., 12th & Maury St. (Westinghouse Electric Corp ! Richmond, Va. BUCK, Robert W. BROWN, Joseph A. (S) Baltimore Brick Co. 3200 E. Madison St., Baltimore 5, Md. BROWN, Lawrence H. (W FI) Box 255, Miami 2, Fla. (Consultant) BROWN, Leslie (W) Lenox, Inc. 50 Meade St., Trenton 5, N. J. BROWN, Meredith C. (S) 609 N. Friends Ave. Whittier, Calif. (Consultant! BROWN, Raymond G. (R) Strategic-Udy Processes, Inc. Box 835, Niagara Falls, N. Y Box 2248. Georgia Tech. Sta. Atlanta, Ga. BUCKLES, Paul E. (M I) 860 Brighton Blvd., Zanesville, Ohio (Donald Hagar Ceramic Materials) BUCKLEY, Edward D. (B) Champion Spark Plug Co. 900 Upton Ave., Toledo 1, Ohio BUCKNER, O. S. (B it Bay State Abrasive Products Co. Westboro. Mass. BUEGE. Robert H. (W) Globe-Union. Inc., Q0() E. Keefe Ate. Milwaukee 1, Wise. BUEHLER, Bert P. (S) 2439 Torrington Ave., Parma 29, Ohio (Cleveland Builders Suppiv Co.) BROWN. Raymond J. (X I) BUESSEM, W. R. (B) Ceramic Age, Ninth-Chester Bldg. Pennsylvania State University Cleveland 14, Ohio College of Mineral Industries BROWN, Robert W. (R) University Park, Pa. 806 S. 56th St.. West Allis 14, Wive BUFFALO CHINA, INC. J(Thiem Products, Inc.) >WN, Roy W. (G) Carborundum Co., Refractories Div Box 268. Perth Ambov, N. I. ( R. E. Gould), 75 Hayes Place Buffalo 10. N. Y. BUGOSH, John (R) E. I. du Pont de Nemours & Co Grassetli Chemicals Dept. BROWN, Wilbur F. (GF) ' Experimental Sta., Wilmington, De!. Libbey-Owens-Ford Glass Co. Rossford. Ohio Vol. 36, No. 10 (10.->7) BUILDERS BRICK CO. (R. C. Houlahan) 3800 Ninth Ave., S., Seattle S, Wash. BULKLEY, Ronald (B) Socony Mobil Oil Co., Inc. Research & Development Lab Paulsburo. X. J. BULL, Dorothy A. Box 959. Alfred, X. Y. BULLARD, Edward R. (E) B. F. Drakenfeld & Co., Inc. Washington, Pa. BULLARD, Keith (GJl 2 Kingman Terrace. Yonkers, X. Y. (Corning Glass Works I BULLOCK, Donald I. (W) AC Spark Plug Div. General Motors Corp. 1300 X. Dort Hwv., Flint 2. Mich. BULLOCK, Gordon University of Birmingham Dept, of Physical Metallurgy Edgbaston, Birmingham 15, England BUNGE, Fred H. (M) M. A. Hanna Co., Research Lab. Hibbing, Minn. BURCH, Oscar G. (GF) Owens-Illinois Box 1035--1036, Toledo 1, Ohio BURCHENAL, Charles H. (W ) Cambridge Tile Mfg. Co., Box 71 Cincinnati 15, Ohio BURCHFIEL, B. M. (R FI) 4458 Rosewood Pl,, Riverside, Calif. (Consulting Engineer) BURCHFIELD, Paul E. (G) Wyandotte Chemicals Corp. 1609 Biddle Ave., Wyandotte, Mich. BURDICK, Milton D. (W FI) National Bureau of Standards Engineering Ceramics Section Washington 25, D. C. BURDICK, Sidney D. (G) 104 Argonne St., Corning, N. Y. (Corning Glass Works) BURGESS, Blandford C. (W F) Monticello, Ga. (Consultant) BURKE, J. E. (B) General Electric Co., Research Lab. Schenectady, N. Y. BURKE, L. Roger (R) 1203 Peoples Bank Bldg. Pittsburgh 22, Pa. (Chas. Taylor Sons Co.) BURKERT. John G., Jr. (M JI! 84 Green St., Valley Stream, X. X'. (Grumman Aircraft Engineering Corp.! BURKHALTER, Edward (SI) 7219 Interlaaken Dr. Tacoma 99, Wash. (Builders Brick Co.) BURKS, Cecil M. (RI) 705 Broadway, Steubenville, Ohio (Weirton Steel Co.) BURLEY, Frank X. (W) Sanitarios " El Aguila" S. A. Apartado 26808, Mexico 14, D. F. BURLEY, Newton Ray (W) 1864 Dresden Rd., Zanesville, Ohio (Burley Clay Products Co.) BURLINGAME, Howard G. (E l 16031 Francisquito Ave. La Puente. Calif. (Carrier Corp.) BURN. Harold J. D. Burn Fireclay Co. Ltd., 76 Jesmond Rd. Newcastle-upon-Tyne 2, England BURNAND, Guy M. (Life) Messrs. Johnson, Matthey & Co., Ltd. 78, Hatton Garden London, E. C. 1, England BURNS, Frederick L. (W) 400 Grandview Dr. Highland Village, Zanesville. Ohio i National Plumbing P o tte r). Inc.) R o s t e r 1. r - Are you gelling the most for your Insulating lv' Refractories '>&* 3?' v- 200 400 600 80010001200140016001800200022002400 MEAN TEMPERATURE-F FIG. 1 Thermal Conductivities ofVarious Weight Refractories There is a close relationship between the weight of the firebrick and its thermal conductivity. In general, the lower the weight, the lower the conductivity--therefore, the better it is as an insulator. The chart shows this relationship between two insulating firebrick of 1.5 pounds per 9 inch straight and 3 pounds per 9 inch straight and a fireclay brick weighing from 7% to 8 pounds per 9 inch straight. Are you using, or are you planning to use refractory insulation in the construction of your glass melting fur. nace? If so, avail yourself of all the benefits of insulation --get the most for your insulating refractories dollar. ; The maximum in insulating value plus the refractori ness needed for the temperature conditions involved an important considerations in the selection of the proper refractory insulation. After weighing these considerations and evaluating different types of materials, many g la . manufacturers have selected lightweight B&W I n s u la tin g Firebrick to provide these benefits. rv Here's why. B&W Insulating Firebrick are lighter in weight than any other insulating, firebrick, which means they have low conductivity, insulate better (see Figure 1). This reduces radiation, which is lost heat, and results in substantial fuel savings. It also means improved working conditions around the tank, an additional benefit for you and your employees. . Lightweight B&W IFB save in other ways, too. They can be bonded with firebrick walls to reduce air leakage and infiltration, thus further reducing fuel consumption. ` B&W Kaolite for Forehearth Channels For quick, easy installation, B&W Kaolite is recom* mended for insulating sidewall and bottom forehearth chan nels. This lightweight insulating castable not only goes in fast, but also provides excellent insulating properties. For your next tank rebuild, call in your B&W represent ative. He will be glad to give you the facts on Insulating Firebrick and Kaolite Insulating Concretes. > AW R E F R A C T O R I E S PRODU C T S ) B& W Allmul Firebrick B& W 80 Firebrick B & W Junior Firebrick B &W Insulating Firebrick B& W Refractory Castables, Plastics and Mortars B& W Silicon Carbide BURNS, Henry K., Jr. (S) 1620 Waverland Ur., Macon, Ga. (Burns Brick Co.) BURNS, R. S. (E) Armco Steel Corp., Research Library Middletown, Ohio BURRISS, William K. (G) ^C onsolidated Feldspar Dept, ^^^kternational Minerals & ^ ^ ^ B e m ic a l Corp. N. Wacker Dr., Chicago 6, 111. BURROUGHS, F. H. (W) Box 1329, Trenton 7, N. J. (Star Porcelain Co.) BURROUGHS, Jack E. 5508 Taylor Rd., Fort W orth 14. Texas BURTON, Howard B. iG) 1618 Arlington Ave., St. Paul 17, Minn. (Minnesota Mining & Mfg. Co.) BURTON, W. A. (S) 803 E. Fourth St., Mt. Pleasant, Texas BURWINKEL, Lawrence G., Jr. (G) Pennsylvania Glass Sand Corp. Two Gateway Center, Pittsburgh 22, Pa. BUSH, James W. ISI) 1255 Cardinal Dr.. Pittsburgh 16, Pa. (Natco Corp.) BUSH, Ralph R. (M) 520 McKinley St., North Canton, Ohio 'Bonnot Co.) BUSH, W. G., & CO. (John S. H erbert) 174 Third Ave., N., Nashville 3. Tenn. BUSHONG, R. M. (R) National Carbon Co., Tiffin & Town Sts. y Fostoria, Ohio BUSSEY, Donald A. (R) Kaiser Aluminum & Chemical Corp. Refractories Plant Moss Landing, Calif. BUSTEED. Donald J. (R I) 8 Janet Circle, Shrewsbury, Mass. (Bay State Abrasive Products Co.) b u t c h e r , l . H., CO. (George J. Middleton) 3628 E. Olympic Blvd. Los Angeles 23, Calif. jKOVICH, Edward M. (R) 4 8 E. 97th St., Chicago 17, 111. tM uter Co.) BUTLER, C. Edward (R I) Crucible Steel Co. of America 234 Atwood St.. Pittsburgh 13, Pa. BUTLER, F. W. (W) Akron Porcelain Co., Akron 14, Ohio BUTLER, Sidney R. Pennsylvania State University 305 D, Mineral Industries Bldg. University Park, Pa. BUTLER, Thomas J.', Jr. (S) Box 279, Austin 62, Texas (Elgin-Butler Brick Co.) BUTTERFOSS, Bruce W. 1600 Highland Ave.. Palmvra, N. J. BUTTERWORTH, William N. (G) General Refractories Co. 950 Leader Bldg., Cleveland 14, Ohio BUTTLE, Robert L. (W) . 65 Greenbriar Dr. Williamsvilie 21, N. Y. (Speer Carbon Co.) BUTTON, Daniel D. (BJ) 3286 Dabnev St., Altadena, Calif. BUXTON, Juan C. Santa Clara 173, San Isidro Buenos Aires, Argentina (Ferrum, S. A.) BUZARD, Fred T. (M) Bell, Pine & High Sts., Plymouth, Ohio (Fate-Root-Heath Co.) BYRNS, Alva C. (R) Kaiser Aluminum & Chemical Corp. 1924 Broadwav, Oakland 12, Calif. By r o n . Julian k . 750 Fowler St., N. W., Atlanta, Ga. f< CABANILLAS, Oscar Gonzalez (S) Puerto Rico Clay Products Corp. VolB. o3x6,47N29o, .Sa1n0 J(u1a9n5, 7P)uerto Rico CABLE, John A. (W) 1011 22nd St. N. E., Canton 4, Ohio (L'nited States Ceramic Tile Co.) CABLE, Margaret (DF) ' 1520 San Miguel Ave. Santa Barbara, Calif. CABLE, Stephen J. (W) 3615 Eaton, N.W., Canton 9, Ohio (United States Ceramic Tile Co.) CABOT, GODFREY L., INC. (Frank E. Daley) 46 Bayard St. New Brunswick, N. J. CACCAMISE, Charles T. (B) Electro Metallurgical Co., 137 47th St. Niagara Falls, N. Y. CACCI OTTI, Joseph J. (B) 38 lllona Dr., Greenhills, Ohio ( General Electric Co.) CAHILL. Robert T. (R) Corning Glass Works, Corning, N. Y. CAHOON. Harold P. (SI Interstate Brick o. 3100 S. 11th E., Salt Lake City, Utah CAHOON, John B,, Jr. (B) 673 S Livermore Ave. Livermore, Calif. (University of California) CAIN. Robert W. Electro Metallurgical Co. Box 351, Ashtabula, Ohio CAITO, A. M. (R I) Basic, Inc., Maple Grove, Ohio CALA, Charles F. (G) 144 Hoover Rd., Rochester 17, N. Y. (Bausch & Lomb Optical Co.) CALABRESE, Donald W. Box 168, Alfred, N. Y. CALDWELL, Smiley, Jr. (G) 717 Newberry Rd., Nashville, Tenn. (Ford Motor Co.) CALDWELL, Smiley M., I l l 717 Newberry Rd. Brook Meade Subdivision Nashville, Tenn. CALDWELL, William D. (E l) Perfection Industries, Inc. 1135 Ivanhoe Rd., Cleveland 10, Ohio CALLAHAN, H. D. (W FI) United States Ceramic Tile Co. East Sparta, Ohio CALLAHAN, Robert M. (W) 4553 Seville Ave. Los Angeles 58, Calif. (Solar Mfg. Co.) CALLINAN, Edward E. (R FI) 1386 Spruce St., R. R. 3 Norristown, Pa. (Alan Wood Steel Co.) CALVA, Roberto (B) 2945 S. Bonn St.. W ichita 13. Kans. ( Boeing Airplane Co.) CALVER, James L. (M) Virginia Div. of Mineral Resources Box 3667, University Sta. Charlottesville, Va. CAMERON, David G. (M) Haller-Inc. 684 Ann Arbor Rd., Plymouth, Mich. CAMERON, Robert A. (G) Corning Glass Works, Corning, N. Y. CAMPBELL, C. V. (MI) 444 Florida Ave., Chester, W. Va. (Ferro Corp.) CAMPBELL, Edward S. (G) Northwestern Glass Co. 5801 E. Marginal Way, Seattle 4, Wash. CAMPBELL. Frank, Jr. 2032 Eastlake, Seattle 2, Wash. CAMPBELL, G. Donald (G) 621 Shelby St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) CAMPBELL, Ian (B) California Institute of Technology Div. of Geological Sciences 1201 E. California St. Pasadena 4, Calif. CAMPBELL, J. Douglas (W) Lithium Corp. of America, Inc. 540 Lincoln Bldg., 60 E. 42nd St. New York 17, N. Y. CAMPBELL, Robert J,, Jr. (B) University of W ashington 304 Roberts Hall, Seattle 5, Wash. CAMPBELL, Robert M. (W FI) Alfred, N. Y. (State University of New York, College of Ceramics) CAMPBELL, Tom W. (R) Box 303, Poland, Ohio (Electro Refractories & Abrasives Corp.) CAMPBELL, Van E. (W) 363 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) CAMPOS, F. Torres Fabrics Nacional de Vidrio, C. A. Box 1049, Caracas, Venezuela CANADIAN CERAMIC SOCIETY (Miss L. C. Keith), 49 Turner Rd. Toronto 10. Ont.. Canada CANFIELD, J. J. (EF) 2909 Orlando Dr., Middletown 20, Ohio (Armco Steel Corp.) CANNING, Robert (G) 202 Fox Chapel Rd., Pittsburgh 38, Pa. (Pittsburgh Plate Glass Co.) CANNON, John D. 2167 Highview Rd., S. W. Atlanta 11, Ga. CAPEK, Raymond G. 2646 S. Clarence Ave., Berwyn, 111. CAPELLMAN, John J. (R) 1118 Highland St., Tarentum 1, Pa. (Pittsburgh Plate Glass Co.) CAPPS, Webster (G) National Bureau of Standards Washington 25, D. C. CARBORUNDUM CO. (Paul N. Gillon), Library 1-2 Niagara Falls, N. Y. CARDER, Frederick (Honorary, GF) Corning Glass Works Vycor Div., Corning, N. Y. CAREY, J. Sheldon (D) Dept, of Design, University of Kansas Lawrence, Kans. CARINI, George F. 628 S. Seminole, Okmulgee, Okla. CARL, John E. (GI) Corning Glass Works, Greenville, Ohio CARLSON, Joseph A. (S) 50 Hawthorne St. San Francisco 5, Calif. (Kraftile Co.) CARLSON, Robert H. (W) Universal-Rundle Corp. Box 960, New Castle, Pa. CARLSON, William G. (RI) 175 Glenfield Dr., Pittsburgh 35, Pa. (Westinghouse Electric Corp.) CARLYLE, Edward C. (S) Box 128, Ironton, Ohio (Carlyle Tile Co.) CARNAHAN, Thomas D. (MI) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. CARNES, Kenneth C. (G) Toledo Engineering Co., Inc. 3001 Sylvania Ave., Toledo 13, Ohio CARNIGLIA, Stephen C. (B) Atomics International Div., NAA 21600 Vanowen St. Canoga Park, Calif. CAROTHERS, Harry S. (M) H. C. Spinks Clay Co., Inc. 1000 First National Bank Bldg. Cincinnati 2, Ohio CAROTHERS, R. B. (MF) H. C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS, Richard B., Jr. (M) H. C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS, T. E. (M) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. R o st e r 17 CARPENTER, F. Scott. Jr. (M ) White Pigments Division Godfrey L. Cabot, Inc., 77 Franklin St. Boston 10, Mass. CARPENTER, R. M. i.S.) Kelsey Fergu.-ini Brick Co. East Windsor Hill. Conn. INTER, Woodrotv (E) Irows Porcelain Enamel Corp. _ ngdon Rd. & Penn R. R. Cincinnati 13, Ohio CARR-LOW RE Y GLASS CO. (Norman R. Beck) Baltimore 3, Md. CARROLL. Jerry W. (W) R. R. 1., Cedar Falls. Iowa (American Radiator & Standard Sanitary Corp.) CARROLL, William F. iW) 3499 McNally Ate.. Altadena. Calif (Florence Ceramics Co.) CARRUTHERS, John L. (SFI) Lord Hall, Ohio State L'niversity Columbus 10, Ohio CARSON, Lee R (St Box 305, Madison. N. C. (Pine Hall Brick 8: Pipe Co.) CARTER, D. R. (M) Eagle-Picher Co. .. American Bldg., Cincinnati 1, Ohio CARTER. F. B. (W I) Tiffin 12, Ohio (American-Standard Corp.) CARTER, George J. 10202 20th N.E., Seattle 55, Wash. CARTER, Gerard T. (W) Oakland St., R.R. 1, Box 11-A .. M attapoisett, Mass. (Cornell-Dubilier Electric Corp.) CARTER, Herbert D. (W FI) 3351 Dorchester Rd. Shaker Heights 20, Ohio (Harshaw Chemical Co.) CARTER, R. (B) General Electric Co., Research Lab. ^ rf^ ie n e c ta d y , N. Y. C ^ B r R I G H T , S. V. (SI) V ictoria Ave.. Corona, Calif. (Jordan Tile Mfg. Co.) CARVLIN, George M.. Jr. (R) Koppers Co., Inc., Koppers Bldg. Pittsburgh 19, Pa. CASAMO, Charles C. (G) Sylvania Electric Products, Inc. Emporium, Pa. CASE MANUFACTURING CORP. (Willard G. Young) 1000 W. Pine St.. Robinson, III. CASHIN, William M. ( B) 151 Mann Ave., Cohoes, N. Y. (General Electric Co.) CASPER, Richard L. Box 787, Alfred. N. Y. CASSADY, Bert L. (R) 5115 S. Lewis Ave., Tulsa 15, Okla. CASTERLINE, Dale R. (MJ) 3897 W. 33rd St., Cleveland 9, Ohio (Ferro Corp.) CATON, Milton W. (RF) 22490 Nevada Ave., East Detroit, Mich. (Ceramic Div., Champion Spark Plug Co.) Ca v a n a u g h . Clifford e ., jr. 1332 Porter St., Philadelphia 48, Pa. Cavanaugh, d. j . (wi) 822 32nd St., Parkersburg, W. Va. (United States Ceramic Tile Co.) CAYFORD, James M. (E l) 1317 Ridge Ave., Steubenville, Ohio (Toronto Paperboard Co.) CECIL, Gowan L. (W) ^ L o n e Star Ceramics Co. 14215, Dallas 34, Texas Paul S. (El ^^W rvice Porcelain Enamel, Inc. Brill & Christie Sts.. Newark 5, N. I. CENTRAL SILICA CO. (E. C Sawyer) 806 Market St., Zanesville, Ohio VL. 36, N o. 10 ( HI.')?) CERAMIC ASSOCIATION, JAPAN (Yogyo Kyokvvai) No 7. Shiba Nishikubosakura 'Gawa-Cho. Minato-Ku. Tokyo, Japan CERAMIC COLOR & CHEMICAL M FG . CO. (W. F. Wenning) Box 297, New Brighton, Pa. CERAMIQUE MAASTRICHT, N. V. (Comte L. de Meetts d'Argenteuil ) Postbus 105, Maastricht, Netherlands CERMAK, Frank (WF) 1542 Union St., Schenectady 9, N. Y. CERMAK. George F. (Bl Berk-hire Chemicals. Inc. 4500 Euclid Ave.. Cleveland. Ohio CERNY, Joseph 1. (E) 5226-28 W. 26th St. Chicago 50 (Cicero) 111. (Resistors, Inc.) , CERULLI, Nicholas F. 73 Forest Ave., Caldwell, N. J. CHADEYRON, A. A. G. Cleveland Magnesite & Refractory Co. Ltd. Normanbv Brickworks, Normanbv Middlesbrough, York, England CHAI, Ki-Kon Frazar & Co., Inc. 50 Church St., New York 7, N. Y. CHAMBERLAIN, James M. W. (B) U. S. Stoneware Co., Box 350 Akron 9, Ohio CHAMBERS. Fred (M) National Gypsum Co., Lttckey, Ohio CHAMBERS, Gordon H. (M) Foote Mineral Co., 18 W. Chelten Ave Philadelphia 44, Pa. CHAM PION SPARK PLUG CO. CERAMIC DIV. (James S. Owens) 8525 Butler Ave., Detroit 11, Mich. CHANTLER, L. W. (R) Standard Lime & Cement Co. Millville, W. Va. CHAPMAN. Alan T. 2063 Jane Ave.. Columbus 19. Ohio CHAPMAN, G. Marsh (W) Harshaw Chemical Co. 6265 Wiehe Rd., Cincinnati 13, Ohio CHARBONNIER, William P. (RI) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. CHARLAND. Tel L. (RI) 316 Elias Dr.. Pittsburgh 35. Pa. (W estinghouse Electric Corp.) CHARLES. Richard J. (G) General Electric Co. Research Lab.. Box 1088 Schenectady, N. Y. CHARLTON, Alex E. (W) Photoceramics, Inc. 1822 Western Ave., Cincinnati 14, Ohio CHARTERS, Melvin L. 12 Marvin Ln., New Brunswick, N. J. CHARVAT. Fedia R. (B) Electro Metallurgical Co. Metals Research Labs. Box 580, Niagara Falls, X. Y. CHASE, Dana (EF) Dana Chase Publications Elmhurst National Bank Bldg. York St. at Park Ave., Elmhurst, 111. CHASE, Harry K. (R) 4040 Lakeshore Ave., Oakland, Calif. (Western Refractories Co.) CHATTAHOOCHEE BRICK CO. (Paul M. Clark) Chattahoochee, Ga. CHATTANOOGA GLASS CO. (Joe G. Venable) Chattanooga 10, Tenn. CHAUMEIL, Frederic Verreries de Bagneaux et Appert Ferres Bagneaux s/Loing Seine et Marne, France CHESS. James S. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh. Pa. CHESTERS, John H. (F) United Steel Companies Ltd. Research & Development Dept. "Swinden Laboratories," Moorgate Rotherham, Yorks, England CHICAGO POTTERY CO. (J. S. Clifford) 1920 Clybourn Ave. Chicago 14, 111. CHICAGO VITREOUS CORP. (William Hogenson) 1425 S. 55th Court Cicero 50, 111. CHILCOTE, Joseph H. (R) 1907 16th St., N., Arlington 1, Va. (Bureau of Ships, Navy Dept.) CHILD, Henry C. Wm. Jessop & Sons Ltd. Research Labs.. Whiston Grange Rotherham, Yorks, England CHILD, James L., Jr. (S) Hancock Brick & Tile Co., Box 450 Findlay, Ohio CHILDS, Clayton G. CB> 2257 N. York St., Owensboro, Ky. (General Electric Co.) CHILDS, Edwin E.. Jr. (E) 1604 Greenspring Dr., Lutherville. Md. (Martin Co.) CHILDS, Gary D. 25 Madison St., Wellsvilie. X. Y. CHIN, Tze-Ching Argilas e Minerios Industriis "Aremina" S. A. Rau Barao de Jaguara 1024-1030 Sao Paulo, Brazil CHING, Tung Rey (J) 31 Soares Ave., Grd. Fir. Kowloon, Hong Kong (I-Feng Enamelling Co. (H .K .), Ltd.) CHIOCHETTI, Vincent E. J. (G) 43 Monroe St., Honeoye Falls, N. Y. (Bausch & Lomb Optical Co.) CHISHOLM, BOYD & W H ITE CO. (Robert A. Ebersole) 610 W. 57th St. Chicago 21, 111. CHORMANN, O. I. (E) 195 Gregory Hill Rd. Rochester 20, N. Y. CHOTHIA, Boman S. Wadia Bldg., 137 Queen's Rd. Bombay, India (British Hartford Fairmont Ltd.) CHRISTENSEN, Carl J. (B) University of Utah Salt Lake City 1, Utah CHRISTENSEN, Chr. Royal Copenhagen Porcelain Manufactory & The Faience Manufactory Aluminia Smallegade 45, Copenhagen F., Denmark CHRISTMAN, Brian B. (W) 48 Norris Ave., Metuchen, X. J. (Rheem Manufacturing Co.) CHRISTMAN, C. E. (E) Federal Enameling & Stamping Co. Pittsburgh, Pa. CHRISTMAN, H. M. (R I) 1514 11th St., N.E., Massillon, Ohio (Massillon Refractories Co.) CHRISTOPHER, A. B. (S) Chambers Bros. Co., 52 & Media Philadelphia 31, Pa. CHU, Gordon P. K. (E) Research Laboratory, Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. CHUTTER, George A. (G) Middle Haddam Rd., Portland, Conn. (Harper Electric Furnace Corp.) CIA. MEXICANA DE REFRACTARIOS A. P. GREEN, S. A. (H. Fetter) Hamburgc 51, Apartado Postal 71 Bis Mexico. D. F. CICHOWSKI, V. J. (E) Fusite Corp., 6000 Fernview Ave. Cincinnati 13, Ohio CINCINNATI MILLING PRODUCTS DIV., CINCINNATI M ILLING MACHINE CO. (Philip O. Geier. Jr.) 4701 Marburg Ave., Cincinnati Ohio R ostkr 19 __PPER, Gean P. - Tabor, Iowa Robert L. i S F I) 212 Rector St., Perth Amboy, X. J. /. (Laredef Corp. of X'ew Jersev) ijARK, Alec \V. Beatson, Clark & Co., Ltd. '. Rotherham, York, England )R K , A rthur R. (B) Box 352, Far Hills, X. J. /.(Foxlyn Laboratories LRK, C. Burton ( Bj .-1766 Weadowcrest Dr. . Pittsburgh 28, Pa. *">' (Harbison-Walker Refractories Co.' sC LA R K , Daniel J. (S ' j ' Vitro Mfg. Co., 60 Greenway Dr. ' : Pittsburgh 4, Pa. CLARK, Horace X. (R i f t.. Refractory & Insulation Corp. V 120 Wall St.. Neu York 5, X. Y X CLARK, James L. ( S ) /. 150 Yates St.. D einer, Colo (Robinson Brick & Tile Co.) LARK, John D. tX F Ii Hu.Foote Mineral Co., IS \V. Cheiten A \t ^.'Philadelphia 44, Pa. " ^RK, Paul M. (S) ^.Chattahoochee Brick Co. i .Chattahoochee, Ga. ARK, Paul W. ^Brown-Firth Research Labs, princess St., Sheffield 4, England /Richard E. (MI) Dunhaven Rd., Dallas, Texas i c; i{R- T. Vanderbilt Co.. Inc.) CLARK, Thaddeus J. E. (W) -^ .1 1 3 Elmore Ave.. Trenton 9, X. J. y:-;&-(Star Porcelain Co.) CLARK, W. D., Jr. (R) A .P . Green Fire Brick Co. . Mexico, Mo. CLARKE, Ford K. (G) XgVjPhilco Corp., Lansdale Tube Co. Din isSs.;Church Rd., Lansdale, Pa. US, Karl M. (W) Mosaic Tile Co., Pershing Rd. Eanesville, Ohio Y, Wilfred (E) Kaiser Metal Products, RadclifFe St. Bristol, Pa. CLAYBURN-HARBISON LTD. (R. M. Hungerford) '850 W. H astings St. Vancouver 9, B. C., Canada CLAYCRAFT CO. (Phillip W. Tefft) Box 866, Columbus 16, Ohio CLAYPOOLE, Stewatt A. (G) R.R. 2, Painted Post, N. Y. (Corning Glass Works) CLEEK, Given W. (G) _ National Bureau of Standards Washington 25, D. C. CLEMENS, August, Jr. (M) 205 E. Gittings Ave., Baltimore 12, Md. (Arcrods Corp.) CLEMENS, Eugene C. (SFI) Cannelton Sewer Pipe Co. Cannelton. Ind. CLEVELAND. George B. (B) California Div. of Mines 217 W. First St. Los Angeles 12, Calif. CLEVELAND MUSEUM OF ART (William M. Milliken) _ ^**50 East Blvd., Cleveland 6. Ohi" d ^ LAXD' Theodore K. (G) Philadelphia Quartz Co. of Californin Seventh & Gravson Sts. Berkeley 10, Calif. CLEVENg E r , Thomas R. Massachusetts Institute of Tech. 20-C-001, Cambridge, Mass. William R. (G) N. ]m St., Lincoln, 111. ^^^^Pittsburgh Plate Glass Co.) CLEVERLY, Robert B. (SI) 133 Grant St., Dover. Ohio fLnjversa! Sewer Pipe Corp.) V' ol. 36, N o. 10 (10,57) CLEWS, Francis H. British Ceramic Research Assn. Mellor Laboratories, Shelton - Stoke-on-Trent, England CLIFFORD, J. S. (W) Chicago Pottery Xo. 1920 Clybourn Ave., Chicago 14, 111. CL1XE. Carl F. I B I Carborundum C<>. .Niagara Falls. X. Y. CLIXE, I. R. (S) Western Brick Co., Danville, 111. CLIXE. Robert W.-(W I) 377 Main St.. East Aurora. X. Y. 'Svracuse China Corp.) C LIPPER DIAMOND TOOL CO., INC. IJoseph Klipper) 345 Hudson St. X'ew York 14. X. Y. CLOSE, Paul (G) Owens-Illinois Box 1035-6, Toledo, Ohio CLOUGH, Philip J. (R) National Research Corp. 70 Memorial Dr., Cambridge 42, Mass. CLOWES, E. J. (W) Clowes Ceramic Corp. 3711 Calhoun Ave. Chattanooga 7, Tcnn. CMOLIK, Clarence G. (B) 4403 Sheraton Dr., Parma 29, Ohio (Clevite Research Center) COATES, Bill (SF) Coates Co., Box 935, Austin 65, Texas COBLE, Robert L. (B) General Electric Research Lab. Box 1088, Schenectady, N. Y. COCA-COLA CO. I Marvin Q. Wheeler) Engineering Dept. Drawer 1734, Atlanta I, Ga. COEN, Bernard (W) Woodbridge Sanitary Pottery Corp. 500 Green St., Woodbridge, N. J. COFFEEN, William W. (E FI) 1024 Boulevard, Westfield, N. J. (Metal & Thermit Corp.) COFFIN. Leon B. (S) Andover, N. Y. (Alfred University) COGEN, Saul (S) Davidson Brick Co.. 4701 Floral Dr. Los Angeles 22, Calif. COGHILL, H. T. (X) 2028 Collingswood Rd. Columbus 21, Ohio (Refractories Div., Carborundum Co.) COHEN, Aaron (S) Box 405, Willamina, Ore. (Willamina Clay Products) COHEN, Alvin J. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. COHEN, Arthur E. (G) Sylvania Electric Products, Inc. Cottage Place, Mineola, N. Y. COHEN, Bernard (G) 130 Spruce Wood Circle Geneva, N. Y. (Sylvania Electric Products, Inc.) COIN, R. H. (E) Ingram-Richardson, Inc. Jefferson Rd., Frankfort, Ind. COLCORD. John E. (RJ) 1706 Sherman Ave.. South Bend. Ind. i Bendix Aviation Corp.) COLE, David L. Campmeeting Rd., Topstield. Mass. COLE, G. Percy (G) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada COLE, Harold R. (R) National Carbon Co. Town St., Fostorla, Ohio COLE. Sandford S. (BFI) Titanium Division, National Lead Co. Research Dept., Box 58 South Amboy, N. J. COLE, Sandford S., Jr. (W I) Power Tube Div., Raytheon Mfg. Co. Waltham 54, Mass. COLEMAN, Bruce G. J & AP Scott Ltd. Box 209, Dunedin, New Zealand COLEMAN, Caruthers A. (S) Big Run Coal & Clay Co. 133 N. Limestone St., Lexington, Ky. COLEMAN, J. C. (G) 3746 Mapleway Dr., Toledo 14, Ohio (Kimble Glass Co.) COLEMAN, Robert L. (SI) 20631 Greenwood, Olympia Fields, 111. (Chicago Brick Co.) COLEMAN. Thomas C. Box 5665, College Sta., Raleigh, X C. COLLINS. Frank P. (G) Liberty Glass Co. Collins Bldg., Sapulpa, Okla. COLLINS, G. F. (Gl Pittsburgh Plate Glass Co., Box 750 Henryetta, Okla. COLLINS, Paul F. (W I) Austenal, Inc. 7001 S. Chicago Ave., Chicago 37. 111. COLLINS, William G. (BI) Johns-Manville Corp., Waukegan, 111. COLONIAL INSULATOR CO. ( R. W. Hemphill, Jr.) 945 Grant St., Akron 11, Ohio COLOSKY, Benjamin P. (RJ) 322 Ridgdale Rd., Louisville. Ky. (Corhart Refractories Co.) COLUMBIA FIR E BRICK CO. (M. L. Hamaker) 612 First National Bank Bldg. Canton 2, Ohio COLUMBIA-SOUTHERN CHEMICAL CORP. (R. W. Miller) One Gatewav Center. Pittsburgh 22. Pa. COMBUSTION ENGINEERING, INC. RAYMOND DIV., (A. R. Jenny) 1315 N. Branch St., Chicago 22, III COMEFORO, J. E. (W ) Frenchtown Porcelain Co. Frenchtown, N. J. ' COMER, Richard L. (W) 6161 Springdale Blvd. Grand Blanc, Mich. (A C Spark Plug Div. General Motors Corp.) COMMERCIAL DECAL, INC. (Alfred Duhrssen) Box 759 East Liverpool, Ohio COMMERCIALORES, INC. fAlbert R. Eckel) Clover, S. C. COMMONS, Charles H., Jr. (W FI) Forest Lane, R. R. 2, Malvern, Pa (Foote Mineral Co.) COMPAGNUCCI, Julius P. (W ) Bay Ridge Specialty Co., Inc. Stokes Ave., Trenton 10, N. J. COMPANHIA PAULISTA DE MINERACAO (Eduardo C. Simonsen) Caixa Postal 3.008, Sao Paulo, Brazil CONARD, John B. (S) 600 Hawthorne Lane, Mansfield, Ohio (Richland Shale Brick Co.) CONDON, Edward U. (G) 6604 Waterman Ave., St. Louis 5, Mo (Consultant) CONE, Carroll (G) 1387 Virginia Ave., Columbus 12, Ohio (E. I. du Pont de Nemours & Co.) CONN, Willi' M. Max-Planck-Institut f. Silikatforschnung, Xeunerstr. 2 Wuerzburg, Western Germany CONNELL, George A. (B) Pacific Coast Borax Co., Box 9128 Station S, Los Angeles 5, Calif. CONNELLY, Daniel S. (R) 2801 N. Park Blvd. Cleveland Heights 18, Ohio (Ohio Crankshaft Co.) CONNOR. Joseph H. 12 Maple St., Hornell, X. Y CONOVER, Ray C. (RI) Gladding, McBean & Co. 1006 Alcalde Way, Glendale 7, Calif R oster 21 CONRAD, Charles E., Jr. (M) 5525 Toledo Ave., S. E. Charleston 4, \V. Va. (Furnace Engineering Corp.) CONRAD, Keith (G) Owens-Illinois Box 1019, Oakland 4, Calif. CONROE, Barden A. (G) ^ Gorton St., Corning. X. Y. irning Glass Works) 1LIDATED FELDSPAR DEPT. INTERNATIONAL MINERALS & CHEMICAL CORP. (William K. Burriss) 20 N. Wacker Dr., Chicago 6, 111. CONSOLIDATED GLASS WORKS, LTD. (I. Doncn) Box 562 Germiston, Transvaal, South Africa CONSUMERS GLASS CO., LTD. (John N. Jordan) Box 456, Station B Montreal, Que., Canada CONTARDI. William A. (W I) 206 Highland Ave., lletuchen, N. J. (Automatic Mfg. Co.) CONTINENTAL CAN CO.. INC. HAZEL-ATLAS GLASS DIV. (Francis C. Flint) 15th & Jacob Sts., Wheeling, W. Va. COOK, A. W. Hargreaves Mill Ltd., Botteslow St. Hanley, Stoke-on-Trent, England COOK, Eugene M. (G) 509 Broadlawn Terrace, Vineland, N. J. (Kimble Glass Co.) COOK, Herman L. (EF) 1555 Beardsley Ave., Muskegon,-Mich. (Norge Div., Borg-Warner Corp.) COOK, Louis S. 4085 Highland Dr. Salt Lake City 7, Utah COOK, Maurice D. 4071 Highland Dr. Salt Lake Citv, Utah COOK, Ralph L. (E F I) 204 Ceramics Bldg. W. Howard (R) 131. Xorris, Tenn. ak Ridg_e National Lab. ) COOKE, Charles C. (G) 2858 S 109th St., Toledo 11, Ohio (Owens-Illinois) COOKE. David C. (W I) 404 Straw-bridge Ate.. Westmont, X. J. (Universal-Rundle Corp.) COOKE, William C. (G) Blue Ridge Glass Corp. Kingsport, Tenn. COOMBS, W. M. (G) ' Owens-Illinois Bridgeton Plant No. 14, Bridgeton, N. J. COOPER, Alfred R. ~ 45 Orchard St., Jamaica Plain, Mass. COOPER. George I. (W) 1329 E. Vernon Rd. Philadelphia 50. Pa. (Signal Corps Supplv Agencv) COOPER, Roger C. (E) ' Fusite Corp.. 6000 Fernview Ave. Cincinnati 13, Ohio COOPER, Walter W. (M) Dow Chemical Co. Inorganic Chemicals Sales Midland, Mich. COOPER. William G. (M) Box 204, Strongsville 35. Ohio (Ferro Corp.) COOPERSTEIX. Raymond (B) 8798 Eldora Dr., Cincinnati 36, Ohio (General Electric Co.) COORS PORCELAIN CO. (H. W. Rvland) 600 Ninth St. Golden. Colo. COPE. William E. (M) ^relay Machine, Inc. it 146. Sebring, Ohio -AND. R. Spencer C. W. T. Copeland & Sons Ltd. Spode Works Stoke-on-Trent. England VOL. .(), N o. 10 ( 10.->7) CORAH, Donald E. Box 226, Alfred, N. Y. CORBAN, Wilbur H. (W ) 3198 Dresden Rd., Zanesville, Ohio * (Ceramic Supply Co.) CORBMAX, Mitchell (S) Xew Jersey Shale Brick & Tile Corp. Box 249, Somerville, X. J. CORBMAX, Morriss (S) Xew Jersey Shale Brick & Tile Corp. Box 249, Somerville, X. J. CORDES. John E. I MI) 5333 Humboldt Ave., S. Minneapolis 19, Minn. (Lithium Corp. of America, Inc.) CORHART REFRACTORIES CO., INC. (Frederick S. Thompson) 940 Commonwealth Bldg. Louisville 2. K \. CORNING GLASS WORKS (Howard R. Lillie) Corning. X. Y. CORXISH, Frank L. (G) Corning Glass Works, Charleroi, Pa. CORNWELL, George L. (B) 171 Eiseman, Kenmore 17, X. Y. (Exolon Co.) CORRADA, Marco A. (G) Puerto Rico Glass Corp. Box 4272, San Juan, Puerto Rico COR SOX, Robert (GJ) 85 State St.. Seneca Falls, X. (Svlvania Electric Products, Inc.) CORWIN, Rudolph E. (B) Applied Physics Laboratory University of Washington 1013 E. 40th St., Seattle 5, Wash. COSTELLO, R. E. (W) Zeller Corp. Fort Wayne Rd., Defiance, Ohio COTTON, Nigel Elijah Cotton Ltd. Nelson Pottery, Hanley Stoke-on-Trent, Stafford, England COUCH, Albert H. (R FI) Libbey-Owens-Ford Glass Co. UCnOiUve1Gr7sH0i1tAyENo.OfBUIrlRolia,ndoLwis.a,yW,UT.rbo(alBend)ao, 511,1.Ohio 4094 Ben Lomond Dr., Palo Alto, Calif. (General Electric Microwave Lab.) COULTER, William G. (M) 4824 Meadow-lane N. W., Canton, Ohio (Pemco Corp.) COUNTS, William E. (B) 1422 W. Home Ave., Flint, Mich. (A C Spark Plug Div. General Motors Corp.) COURI, Richard A. (G) Box 109, South Woodstock, Conn. (American Optical Co.) COURT, G. Robert (E) 936 Hawthorne Ln., Kankakee, 111. (A. O. Smith Corp.) COURTER, R. F. (M) Globar Div., Carborundum Co. Niagara Falls, N. Y. COURTNEY, Scott J. (M) B. F. Drakenfeld & Co. 45-47 Park PI., New York 7, N. Y. COUTANT, Edward R. (G) General Electric Co., 1285 Boston Ave. Bridgeport 2, Conn. COVAN, H. E. (M) R. R. 3, Box 10, Bryan, Texas (Orton Foundation) COWAN, J. G. "Roselands," Billington Haughton, Staff. England (Universal Grinding Wheel Co.) COWAX, Robert E. (BJ) 3806 Gold St., Apt. 12 Los Alamos, X. M. (Los Alamos Scientific Lab.) COWELL, J. Robert, Jr. (G) Woodville Lime Products Co. 2140 Jefferson Ave., Toledo 2, Ohio COWLES, Robert J. (W) Quality Components, Inc. St. Marys, Pa. COWLES, Roderici : Walworth Co.. 800 E. First > South Boston _ - COWLING, Kenneti 79 Norwood K. Sheffield 5, Enr:. - (Thos. Marshal - - COX, John E. (E . Mellon Instiui: 4400 Fifth Avt COX. John J. Pa. 4515 21st A\c. ~ ~ W'ash. COX, Paul E. (SF 520 Canal St., L. - i.a. (Louisiana Ge-. -. - * COX. Samuel F. ( Pittsburgh Plar - Research Lab. - ~ ~ COX, Shaun M. J. A. Jobling L -- Wear Glass W ' - Sunderland, --- - COY, John Joel ( T 1689 Victoria ` Scarborough, O- -ee-- 410 (Frigidaire Pro : ---9a. Ltd.) COZAD, John O. ( Demuth Glass ' Box 629, Parkf--~=rc a. CRAFT, R. S. (Rj Findlay Clay P n a = r - Washington, Pa CRAIG, Bruce G. (Z 4520 N. 148th. V.,c. (A. O. Smith C.re. CRAIG, David M.. CPittsburgh Platt 2 * s -- One Gateway Cerrr- r-=n.--<9, 22, Pa. CRAIG. James W. :-r Canadian Refrarrctas --r- 540 Canada Cerec: t-r. Montreal 2, Que ~ CRAIG, John D.. t14 Emerald 1-t. --r-r: Pa. (Vitro Mfg. C CRAIX, Harold L - 1 221 Skvport D .-- (Westinghoust ' =-- Pa. , CRAMER. Adolph Pennsylvania e-rrre. Chrvsler Bide V*. CRAMER. W. E Industrial Cere- ~ --- rc. 965 W. Fifth ----- . -- s 8, Ohio CRANDALL. F.ue" 258 Gulf St.. ,\ - (American Re" Crucible Co. i CRANDALL, Jam- _ ~ 4514 Chestnut 5.. -- 'r---- r Md. (National Bures r: CRANDALL, WiL:;: I j Box 707. Alfrt (State Unite-- College of Ce- * - ' Unite) CRAXDON, A. American Wir. --- 20th Floor, Fe--r- -- -9g. Pittsburgh 21 CRANE CO., C H A " ^ ': " ^ 1IV. (W. M. Hami.-.- 33rd and Alto: - Chattanooga '. CRANE-PACIFIC V Peer) 330 W. Citru CRAVEN, Henry Davison Chetm.-Div. of W E -- . . tox 885 Lake Charles . CRAWFORD, Gecrr : " 221 Sumner Ae * - - ?a. (Universal -Ru:. CRAWFORD, J. I ~ Johns-Manviht -ere- --- 22 E. 40th St. Y. CRAWFORD, J. L 3854 FoothiL L Santa Barbara CRESOX, Walter F. (R) CUMMINGS, J. M. (M) Babcock & Wilcox Co. British Columbia Cement Co., Ltd. 1040 National City Bank Bldg. B. C. Cement Bldg. Cleveland 14, Ohio * Victoria, B. C., Canada CRESS, William C. (RI.) CUMMINS, Arthur B. (B) Carolina Ceramics, Inc. Morning Glory Rd.,,,Bound Brook, X. J. ^ R .R . 3, Columbia, S. C. (Johns-Manville Corp.) G ^ fc S Y , Morton (G) CUMMINS, Robert K. (G) ^ ^ ^ B ih a r t Manufacturing Co. General Electric Co., 1133 E. 152nd St. Homestead Ave. Cleveland 10, Ohio Hartford 2, Conn. CUXLIFFE, J. A. (S) CRIDER, Paul H. i El 266 Seventh St. 1971 West 51st St.. Erie, Pa. Medicine Hat, AJta., Canada (Erie Enameling Co.) (Medicine Hat Brick & Tile Co . Ltd ) CRISPIXO, Joseph C. <R) CUNNINGHAM. Eugene E 'G i Corning Glass Works 23u Greenfield A\e.. Newark. Ohio Corning, N. Y. t Owen>-Corning Fibergla" Corp i S. A. CRISTALERIAS DEL URUGUAY CUNNINGHAM, James A. (Si (Francisco J. Gercar) Comercio 1491 Adams Clay Products Co. Montevideo, Uruguay Box 34. Martinsville, Ind. CROCKETT, William E. (X) CUNNINGHAM. Robert J. iG) 1215 X. Arlington Ave. Clark Ave., R.R. 5, Newark, Ohio Indianapolis, Ind. (Ovvens-Corning Fiberglas Corp.) (Sales Engineer) CLTIDRO, V incent'X. (W) CRONINGER, George J. (M) 2204 Kirchoff Rd. A. J. Wahl, Inc., 8 Central Ave. Arlington Heights, III. Brocton, X. Y\ (Radio Materials Corp.) CROOK, Charles Edmund (W) CCRCIO, Anthony L. (WI) Los Angeles Chemical Co. 21 Church St., Bound Brook, X. J. 4545 Ardine St.. South Gate, Calif. (Advanced Vacuum Products. Inc.) CROOKSTON, James A. (RI) CURRAN, EDWARD 1224 E. Jackson St., Mexico, Mo. ENGINEERING, LTD. (A. P. Green Fire Brick Co.) (Terence P. Xealon), Cardiff. Wales CROOM, Henry C (SJI) CURRAN, Martin T. 1112 S. Tarboro St., Wilson, X. C. Box 562, Alfred. X. Y. (U. S. Armv) * CURRAN, Robert (RI) CROSBY, Donald P. (RI) 75-08 35th Ave. Harbison-Walker Refractories Co. Jackson Heights 72, N. Y. Fulton, Mo. (Plibrico Co.) CROSKEY, Carl D. (W) 208 Rollingdale Rd. CURRIE, Thomas E. (R) Box 33. Berwyn. Pa. Catonsville 28, Md. ( Foote Mineral Co.) (Insulator Dept. CURRY, William J.. Jr. (R) General Electric Co.) Hiram Swank's Sons, R o n 630 C R nSL IX , John D. Johnstown, Pa. X. Lamar, Austin, Texas CURTIS. Carl E. (R FI) A. H. B. R. R. 3, Kingston, Tenn. j & J Dyson Ltd.. Griffs Works (Union Carbide Nuclear Corp.) Stannington. Xr. Sheffield, England CROSSAN, W. A. (S) Metropolitan Brick, Inc. 1017 Renkert Bldg., Canton 2, Ohio CROSSLEY MACHINE CO. 301 Monmouth St., Trenton 9, CROSSLEY', Robert H. (W> St. Joseph Lead Co. 250 Park A\e., New Y'ork 17, X. Y". CROUCH, Lester A. Georgia Institute of Technology Box 270, Atlanta, Ga. ^CROUCH, Richard L. (M) Funkbouser Co. Box 312, Blue Ridge Summit, Pa. CROWE, Samuel H., Jr. (G) X. CURTIS, Miles E. (E) 301 Brunswick Rd., Louisville 7, Ky. (Ferro Corp.) CURTIS, William H., Jr. (EJ) Magnolia Trailer Ct. J. 260`> Deans Bridge Rd.. Augusta. Ga. (U. S. Army) CURTS, R. M. (G) American Potash & Chemical Corp. 99 Park Ave., New York. X. Y'. CUSICK. Charles S. (G) Pittsburgh Plate Glass Co. Wks. 4, Ford City, Pa. CUTH ILL. John R. (E) Enameled Metals Section National Bureau of Standards Washington 25. D. C. 416 Mississippi Ave., Crystal City, Mo (Pittsburgh Plate Glass Co.) CUTLER. Ivan B. (B) 220 Mines Bldg.. University of Utah CROWLEY, Francis J. (M) Salt Lake City 12, Utah Crowley-Thompson Chemical Co. Ft. E. Ninth & Lakefront Cleveland 14, Ohio CZARNECKI. Kamil B. 29. Whitehall London S. W. 1, England CROWLEY, Henry L. <B) (Aglite. Ltd.) 365 Forest Rd.. South Orange. X. J. (Crowley Diw, Aerovox Corp.i CZECHOSLOVAK SCIENTIFICTECHNICAL SOCIETY CROWLEY'* Michael S. (I) FOR THE SILICATE INDUSTRY Pennsylvania State University (R. Barta) Prikopy 29 Dept, of Geophysics & Geochemistry Prague 1. Czechoslovakia 223 Mineral Set. Bldg. University Park, Pa. CRUIKSHAXK. C. L. (X) D Great Lakes Foundry Sand Co. D'ADRIAN, Vincent L. D. (G) 720 United Artists Bldg Mississippi Valley Research Lab.. Inc ^ ^ D e tr o it 26, Mich. 901 S. 18th St., St. Louis 3, Mo. Vaughn E. (G) DAGER, Probert W. (MFI) ^ J P ^ r n i n g Glass Works. Corning. X. Y. 5628 Greenbush, Van Nuys, Calif. CULLEY. Paul (H. C. Spinks Clay Co.) Pole Bridge Rd.. G enoeo. X. Y\ DAHLSTROM. Roy (X) CX'LVER, Richard L. National Lead Co. Box IS. Alfred. X. Y. Ill Broadway, New York 6. N. Y. Vol. No. in (1057) DALEY, Frank E. (M) Godfrey L. Cabot, Inc. 46 Bavard St., New Brunswick, N. J. DALTON, Robert H. (G) 234 Delevan Ave., Corning, N. Y'. (Corning Glass Works) DAMERON, Joseph J. (S) Coates Co., Box 935, Austin, Texas DANIELSON, R. R. (E FI) 120 Richmond Terrace, Rahway. X. J. (Metal & Thermit Corp.) DANKS, William H. (G) 216 Mississippi Ave., Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY, George M. (M) 61 Washington Ave., Westport, Conn. (Dorr-Oltver, Inc.) DARNELL, Harmon C. (S) Murray Tile Co., Inc., Cloverport, Kv. DARRAH, W. A. (E) ' 901 N. Oak Park Blvd., Oak Park, 111. (Continental Industrial Engineers, Inc.) DAS GUPTA, A. K. (W) Allen-Bradley Co. 136 W. Greentield Ave. Milwaukee 4, Wise. DAUMKE, Arthur H. (W) 17 W. 170 Hillside Ln., Hinsdale, 11!. (Harshaw Chemical Co.) DAUWALTER, A. C. (S) W. S. Dickey Clay Mfg. Co. 607 Commerce Trust Bldg. Kansas City 6, Mo. DAVENPORT, Warren H. (R) 53 Paine St., Worcester 5, Mass. (Norton Co.) DAVEY, Earl R. (W) Canadian Ohio Brass Co., Ltd. Niagara Falls, Ont., Canada DAVEY & MOORE LTD. (K. A. Murdoch) Lockfield Ave. Brimsdown. Enfield Middlesex, England DAVIDSON. E. O. (M) Trinity Ceramic Supply. Inc. 100 Howell St., Dallas, Texas DAVIDSON, Robert W. (R) North American Refractories Co Curwensville, Pa. DAVIES, Chester A. (W I) Park Lake Ave., Titusville, N. J. (American Radiator & Standard Sanitary Corp.) DAVIES, Edward G. (G) Dominion Glass Co., Ltd. Waltaceburg, Ont., Canada DAVIES, Louis F. (M) Carborundum Co., Globar Div. 2626 Malt Ave., Los Angeles 22. Calif. DAVIES, Ray, Jr. (R) General Refractories Co. 681 Market St. San Francisco 5, Calif. DAVIES, Thomas H. (G) Mellon Institute. 4400 Fifth Ave Pittsburgh 13, Pa. DAVILA, A. E. Fernandez Londres 1122 Longchamps--F NCR. Argentina (Ferro Enamel S. A.) DAVIS, Earl K. (G) Bausch & Lomb Optical Co Rochester, N. Y. DAVIS F IR E BRICK CO. Oak Hill, Ohio DAVIS, Harry E. (W FI) Universal Potteries, Inc. Cambridge, Ohio DAVIS, H. M. (E) Pennsylvania State University Mineral Industries Bldg. University Park, Pa. DAVIS, James K. (G) 144 High Rd., Corning, N. Y\ (Corning Glass Works) D \ VIS. James T. Box 5332. Georgia Tech Sta. \tlanta. Ga K ostkk DAVIS, John A., Sr. (W) Sentry Sanitary Corp. Box 427, Mannington, \Y. Va. DAVIS. M. Paul, Jr. 309 Chamberlain St.. Raleigh. X C. DAVIS. X. B. (Mi 77 Metcalfe St., Rm. 805 ua 4. Ont., Canada stilting Engineer) Richard P. Eighth A\e., Altoona. Pa. DAVIS, Sam H., Jr. <\Y) Kohler Co.'. Spartanburg. S. C. DAVIS. Walter M. <Rj Aluminum Co. of America 1515 Fidelity Philadelphia Tru>t Bldg Philadelphia 9, Pa. DAY, Arthur L. (Honorary, G) 9113 Old Georgetown Rd. Bethcsda 14, Md. DAY, Britton T. (R) ` American Fire Clay & Pr-'duct^ Co. Box 157, Canfield, Ohio DAY, Charles M. (R) Valley Dolomite Corp. Room 902, 915 Olive St. St. Louis 1, Mo. DAY, Delbert E. 502 W. Tenth St.. Rolla. Mo. DAY, Frank, Jr. (M) Coming Glass Works, Corning, N. Y. DAY, Jack F. (W I) 2002 W oodland Ave., N. W. Canton, Ohio (United States Ceramic Tile Co.) DAY, Ralph K. (G FI) . Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio DAY, Robert B. (SI) 18 Lynnwood Dr.. R. R. 3, Morris, III. (Tuthill Building Materials Co.) DEADERICK, James W. (B) 1011 Norvell Dr. i;. Signal Mountain, Tenn. (American Lava Corp.) WYLER, Earnest W. (RI) 9 Glenmawr Ave. lumbus 2. Ohio nited States Armv) DEAN, Estus R. (BJ) Box 41, Ossining. X'. Y. (International Business Machines Corp.) DEAN, Robert (G) Sinclair Glass Co.. Ceredo. W. Va. DEAR. Paul S. (BFI) Virginia Polytechnic Institute Box 205, Blacksburg. Va. d e a r b o r n GLASS CO. (Joseph Falls). 6600 S. Harlem Bedford Park, P. O. Argo. III. DE BECK, Hubert O. (M) 1700 Sunset Blvd., Apt. 22 Houston 5, Texas (Baroid Div., National Lead Co.) DEBENHAM, W. S. (R FI) United States Steel Corp. 525 William Penn PI. Pittsburgh 30, Pa. DECKER. Alfred R. (W) Champion Spark Plug Co Cambridge, Ohio DECKER, Edgar A. (W) G. S. Robins & Co. 126 Chouteau, St. Louis 2. Mo DECKER, Edward L. (W) Summer St., Williamstow n. Mass. (Sprague Electric Corp.) E COURSEY. Donald T. (E) Redfield Village, Apt. I9A-3 Metuchen, X\ J. (E. I. du Pont de Nemours & Co. I DEETH, h . r . (M) merican Nepheline Ltd. I King St. W., Rm. 2530 oronto, Ont., Canada DEIGNAN, Charles J. (SI) 305 Burkey Ave., Reynoldsburg. Ohio (Claycraft Co.) v o l. 36, N'o. 10 DE LA ROY, Hans (\Y) Delco Radio Div. General Motors Corp. ^ Kokomo, Ind. DELAWARE CLAY CO. (Homer W. Wil.-on) Box 352 Delaware, Ohio " de LEEUW, Peter Eisenberg & Co., Inc. Central Post Office Box 323 Tokyo, Japan DF LEON. Aaron (R) Cia. Industrial de Zacatecas. S. A. Apartado 9, Guadalupe. Zac., Mexico DELGADO, Cyril B. (G) The Glass Industry 55 W. 42nd St., New York 36, X. Y. DeLOXG, Hermon W., I l l (G) 67 Main St., Dansville, N. Y. (Department of Public Works) DEMAISON, R. T. (-R) Quigley Co., Inc.. 415 Madison A^-. New York 17, N. Y. DeMARlA, Vincent C. (G) Syivania Electric Products, Inc Box 6, Bayside, X. Y. DEMUTH GLASS WORKS, INC. (George F. Y'oung) Box 629 Parkersburg, W. Va. DENISON ENGINEERING DIV. AMERICAN BRAKE SH OE CO. (W. C. Denison), 1160 Dublin Rd. Columbus 16, Ohio DENISON, George W. (SF) Ohio Clay Co.. Box 1776 Cleveland 5, Ohio DENISON, John C., Jr. (G) John C. Denison & Son Co., Box 63 Rochester, Pa. DENISON, Norman E. (S) Ohio Clay Co., Box 1776 Cleveland 5, Ohio DENISON, W. C. (M) Denison Engineering Div. American Brake Shoe Co. 1160 Dublin Rd., Columbus 16, Ohio DENMAN, Cedric E. (S) Great Bend Brick & Tile Co., Inc. Box 53, Great Bend, Kans. DENNIS, John S. 28 Michael Dr., Trenton 9, X. J. de PABLO, Liberto Ohio State University 140 Lord Hall, Columbus 10, Ohio Df. PIOLENC. Gerard (X) Saint Gobain, Inc. 500 Fifth Ave., New York 36, N. Y. dePROSSE, Victor A. (E l) 2164 A rthur Ave., Lakewood 7, Ohio (Ferro Corp.) DeREMER, John W. (RI) 501 Arizona Dr., New Kensington, Pa. (American Window Glass Co.) DERGE, Gerhard (X) Carnegie Institute of Technology Pittsburgh 13, Pa. DERINGER, W. A. (E F I) A. O. Smith Corp. 3533 N. 27th St., Milwaukee 1, Wise. deROUX, Juan Ramon (I) Box 1486, Panama, Rep. of Panama (Panama Clay Products Co., Inc ) DERR, Robert H. (W) Certain-Teed Products Corp. 204 Park PL, Pittsburgh 9, Pa. DESAIX, Herbert A. (SI) 122 Jefferson Park Dr. Huntington, W. Va. (Barboursville Clay Mfg. Co.) DESENNE, Claude M. (S) 505 Cote de I'Eglise Boischatel Co. Montmorency, Que., Canada (Citadel Brick Ltd.) DETAMORE, Walter A. (S) Barium Reduction Corp. South Charleston 3, W. Va. DEURYORST. F. B. M. Het Zonnehuis, Paasberglaan Terborg. Holland (Koninklijke Fabrieken Diepeiibrock & Reigers N. V.) DEUTSCHE GLASTECHNISCHE GESELLSCHAFT Bockenheimer L an d stra e 126 Frankfurt (M ain). Germany DEUTSCHE KERAMISCHE GESELLSCHAFT Reuterstrasse 235 Bonn/Rhein, Germany DEUTSCHER. Jemme S i S1 ) R. R. 1. Box 93S 4 1 iJ T e m C ' C a l A \ t \ . \ nrc *> C a l i f . (Hancock Brick (n .i DeVILBISS CO. i K F. Frt> ) Phillips & Dctmit A\e. Toledo 1. Obi. de VI LLE. 2. Lt. Ralph W. Mi > H<| \ i r Materiel Command. Box 1245 Wright-Patter"*>n \ FB. Ohio DEVLI N. James F. (Fl> 4224 Brenau \u*.. Apt. 2 Dayton 9, Ohio ( Pemco Cor]).) DeYOE. Charles F. (R) 38 W. Fourth St.. Corning, X. Y. (Corning Glass Works) DeVRtES, Robert C. (B) General Electric Co.. Research Lab. The Knolls, Schenectadv 3, X. Y. DEW, Robert J., Jr. (B) Ceram-Chem. Research Lab. University of Tampa, Tampa, Fla. DEWEY, B. F. (W) 42 Summit St., LeRoy, N. Y. (Lapp Insulator Co.) DEWEY, John L. (R) Reynolds Metals Co. ~ Box 191, Sheffield, Ala. de WYS. E. Christiaan (B) 85 Maple Dr.. Chesterland. Ohio ( Ferro Corp.) DEXHEIMER, E. C. (E) 917 Country Club Drive St. Louis 21, Mo. DEYO. R. Daniel (R) 104 Dogwood, Park Forest, 111. (United States Steel Corp.) DI Januario D. Pioneer Porcelain Industry. Inc. I922-D Inverness St.. Sta. \n a Manila. Philippines DIAMOND ALKALI CO. (L. T. Welshans) Cement-Coke Div. 300 Union Commerce Bldg. Cleveland 14, Ohio DIAMOND, Grant S. (R FI) Electro Refractories & Abrasives Corp. 344 Delaware Ave., Buffalo 2, N. Y. DIAMOND, Jacob J. (B) National Bureau of Standards Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. DIAZ, Jose J. (I) Fabrica Nacional de Loza de Penco S. A. Box 13, Penco, Chile di BENEDETTO, Bernard Box 847, Alfred, X. Y. DICK, Clarence H. (G) 1013 Gordon St., Natrona Heights, Pa. (Pittsburgh Plate Glass Co.) DICK. William O.. Jr. (G) 37 Meadow Brook Apts. Corning, X. Y. (Corning Glass Works) DICKAS, Charles H. (E) 1524 Sunset Rd., Chattanooga, Tenn~ (Samuel Stamping & Enameling Co.) DICKENS, H. A. Nilsen Porcelains (Aust.) Pty. Ltd. 221 Separation St. Northcote, Victoria, Australia DICKEY, Herbert R. (S) 26 Regent St. St. Thomas, Ont., Canada (Canada Vitrified Products, Ltd.) R oster 27 JKEY, John M., Jr. (SI) Hanlev Co., Summerville, Pa, 'KIXSX, S. J. <R) American Smelting i Refining Cu. Smith Plainfield. X. I. ,'KSOX. Terry E. ' Kicent St.. Horneil, X. Y. rl \Y. ( R I X. V. Yilmore IM., Syracuse 8. ij Refractories & Abrasive- Corp.l ETKRT. Harry W. t R t Texas Harry W. Dietert Co. 1214 Virginia Dr., Kerrville, ETRICH, Waldemar F. (B) 1209 Potomac St.. N. W. Washington 7, D. C. (United States Bureau of Mines) ETTERLE, Edwin W. (W I) 3834 Monteith Dr. Los Angeles 43, Calif. (Ferro Corp.) ETZ, Earl D. Hess Rd.. Columbus 10. Ohio ETZEL, Adolf Max-Planck-lnstitut fr Silikatforschung, Wurzburg, Germany Neunerplatz 2 LAZZARO, John F. 4015 34th S., Seattle 8, Wash. LLARD, William F., Jr. (S) 2125 E. Side Court, Augusta, Ga. (Merry Bros. Brick & Tile Co.) ILLENDER, Richard D,, Jr. (W) 8 Sunnybrook Trail Signal Mountain, Tenn. (American Lava Corp.) ILLIARD, Paul D. (Gl) 1313 E. Wheeling St., Lancaster, Ohio (Anchor Hocking Glass Corp.) 1LLINGHAM, Robert P. (W ) 2207 Cheyenne St., Golden, Colo. (Coors Porcelain Co.) 1LLOX, C. L. (G) Latchford Glass Co.. Box 71707 ^ ( ^ A n g e le s 1, Calif. Zale (W) ^B ^iverlaw n Dr., Fair Haven, N. J. (Atlantic Tile Mfg. Co.) IXGLEDINE, H. F. (S) National Sewer Pipe Ltd. 330 Wentworth St.. X. Hamilton, Out., Canada INGLER, Edward L., Jr. (R) Carborundum Co., Refractories Div. Niagara Falls, N. Y. TNGWALL, Andrew (G) 588 Grove St., Upper. Montclair, N. J. (Consulting Scientist) IPPELL, L. V. (R) 1407 Cherfv Lawn Ave. R. R. 3, Owosso, Mich. (Mid-West Abrasive Co.) . IRKSEN, A. J. (G) American Potash & Chemical Corp. 99 Park Ave., New Y'ork 16, N. Y. IRLAM, Arthur C. (G) 208 X. Talley Ave., Muncie, Ind. (Ball Bros. Co., Inc.) HSTILLATOR, Philip R. (W ) Jackson Vitrified China Co. 2 West St., Pelham Manor 65, X. Y. HTHRIDGE. Edward H. (E) Richmond Plumbing Fixtures Di\. Rheem Manufacturing Co. 1729 Pennsylvania Ave., Monaca, Pa. Anna Lane (D) 815 X. Fourth St., Burlington, Iowa >IXOX. C. E. (B) 6270 Lubao Ave. Woodland Hills, Calif. (Atomics International) 3IXON, Gene (R) ^ ^ k |n i t e Mining Corp., Cullen, Va. JO SE PH , CRUCIBLE CO. R. Wyckoff) 167 Wayne St. Jersey City 3. N. J. 7LUGOZIMA. W. R. (W l) Patterson Foundry & Machine Co. Ceramics Div.. East Liverpool. Ohio DODD, Charles M. (SFI) Dept, of Ceramic Engineering Iowa State College, Ames, Iowa DODGE. Alfred W. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. 126 Market St., Zanesv*llle. Ohio DOERSELN', Kenneth P. (M) Silk City Tool & Machine Works 221 Seventh Ave., Hawthorne, X. J. DOLL, Charles E. (W) Mount Clemens Pottery Co. Mount Clemens, Mich. DOMINION MINERALS DIV. RIVERTON LIM E & STONE CO. (Robert C. Brandt. Pinev River, Ya. DOXAHEY, John W. (GI) ' Box 191, Paoli, Pa. (Foote Mineral Co.) DONEN, I. Consolidated Glass Works Ltd. Box 562, Germiston ` Transvaal, South Africa DONEY. Louis M. (B) Mackin Lane, R. R. 2(1 Knoxville, Tenn. (Oak Ridge National Lab.) DONLEY, John C. (I) Pentco Corp., 5601 Eastern Ave Baltimore 24. Mil DOXLOX, Robert L. (GJ) Corning Glass Works Harrodsburg, Ky. DONNENWIRTH, A. L. (RI) Carborundum Co., Falconer, N. Y. DOORXWAARD, John 36 Third St., X. W. Sioux Center, Iowa DORA, loseph C. (E) 817 Oak St., Danville, 111. (Ordnance Ammunition Command) DORAN, Robert F. (GI) Sylvania Electric Products, Inc. Cottage PL, Mineola, N. Y. DORF. Arthur L. 1791 E. 14th St., Brooklyn 29. X. Y. DORMUTH, Lawrence C. <B > Pennsalt Chemicals Corp. Box 4388, Chestnut Hill P. O. Philadelphia 18, Pa. DORN, Alvah J. (G) 4 Oakwood Dr., Box 152 Corning, N. Y. (Corning Glass Works) DORN, G. Neal (SI) 1015 Kemp Ave., Ironton, Ohio (Carlyle Tile Co.) DORSETT, O. A. (W) Knox Porcelain Corp., Knoxville, Tenn DORSEY, Baird L. (R) 300 Walnut Rd., Pittsburgh 2, Pa. (Jones & Laughlin Steel Corp.) DORSEY, John J. (W I) P. R. Mallory & Co., Inc. 3029 E. Washington St. Indianapolis 6. Ind. DOTY. Henry S. (R) Commercialores, Inc. 30 Church St.. New York 7. X. Y. DOUGHERTY, Leon A. (W ) 370 North St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) DOUGHERTY, W. E. (MF) 1625 Barr Ave., Pittsburgh 5, Pa. (O. Hommel Co.) DOUGLAS. Edward A. (R) 621 S. Freedom Ave.. Alliance, Ohio (Babcock & Wilcox Co.) DOUGLAS, Richmond Douglas Firebrick Co., Ltd. Dairy, Ayrshire, Scotland DOUGLAS. R. W. Society of Glass Technology "Thornton," Hallam Gate Rd Sheffield 10. England DOWDLE, Hugh J., Jr. Box 2905. Clemson College Sta. Ciemson, S. C. VOL. 3(i, N o. 10 (1057) DOWLING, Robert F. (G) American Optical Co. . Southbridge, Mass. DOWNS, Charles D. i.W) Columbian Carbon Co. Mapico Color Unit 601 Cass St., Trenton 10, X. J. DRAKE, Arthur D. (S) R. R., Blacklick, Ohio (Clavcraft Co.) DRAKE,'M. Ellis (D) Alfred University, Alfred, N. Y. DRAKENFELD, B. F. & CO. (Scott J. Courtney) 45-47 Park PI. New York 7, X. Y. DRAKER, Harry C. (M) 38600 Courtland Dr., Willoughby, Ohio (Harshaw Chemical Co.) DRAMMENS GLASSVERK (Ragnar Tanberg) Drammen, Norway DRAPER. Perry E. 'W l Mansfield Sanitary. Inc. Perrvsville. Ohio DRECHSEL, Helmut E. (G) Smith Kline & French Labs. 1530 Spring Garden St. Philadelphia 1, Pa. DRESSLER, Philip (MFI) Swindell-Dressler Corp., Box 1888 Pittsburgh 30, Pa. DREYER, Donald H. (G) T. C. Wheaton Glass Co. Millville, N. J. DREYLING, Lewis J. (R) 229 Milltown Rd., Milltown, N. J. (Quigley Co., Inc.) DROUHARD, W. J. (W I) Mansfield Sanitary, Inc. Perrysville, Ohio DRUCKER, Julius Farbenfabriken Bayer Aktiengesellschaft, 7-9, Rheinuferstr. Krefeld-Uerdingen, Germany DRUMMOND, Charles H. (G) 1639 Cass Rd., Maumee, Ohio (Owens-Illinois) DUBE, Alfred (D) 425 11th St., Lincoln, 111. (Stetson China Co.) DUBER. William 1143 Marseille Dr. Miami Beach 41, Fla. DUBLER, Robert H. (W) Crane-Pacific Co. 330 W. Citrus St., Colton, Calif. Du BO IS, H. B. (M FI) Golding-Keene Co. Box 456, Keene, X. H. DUCKWORTH, Winston (BFI) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio DUDDING, B. P. International Commission on Glass Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, England DUE, Herbert J. (W ) 11 Scoles Ave., Clifton, N. J. (St. Joseph Lead Co.) DUECKER, Heyman C. (G) 28927 Emerson Way, Inkster, Mich. (Ford Motor Co.) DUEVEL, Charles 0 ., Jr. (G) American Thermos Products Co. Thermos Ave., Norwich, Conn. DUF. Y, Robert K. (SI 4217 Brook Rd.. Richmond 27. Va. (Southern Lightweight Aggregate Corp.) DUFF, R. D. (G) Owens-Illinois Box 1035, Toledo 1, Ohio DUFFY, J. P. (S) Stillwater Clay Products Co. Lock Drawer 32, Uhrichsville, Ohio DU FRESNE. Robert S. (W) 3125 Fairmount, La Crescenta, Calif. (Gladding. McBean & Co.) R oster 29 ;GGAN, J. J. (G) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. .'HX, Elmer C. (W) Franklin Chemical Co. 119 \V. Chestnut St. Columbus 15, Ohio EN', Alfred (D) lercial Decal, Inc. ,, 759, East Liverpool, Ohio JK E , John J. (W) Box 33, Saxonburg, Pa. (Du-Co Ceramics Co.) JLBERG, Irving (RI I 254 N. Allegheny St., Bellefonte, Pa. (J. H. France Refractories Co.) ULIX, F. H. (BJ) Champion Spark Plug Co. Ceramic Div. 8525 Butler Ave.. Detroit 11. Mich. UNBECK, Norman J. (R) International Minerals & Chemical Corp. 20 N. Wacker Dr., Chicago 6, 111. L'XCAX. I. Earle IGF) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. 'UNCAN, Russell F. (B) 209 Franklin Dr., Berea, Ohio (Ferro Corp.) . lUNCOMBE, George H., Jr. (SF) 150 E. Frambes Ave., Columbus 1, Ohio (Evans Brick Co.) UNEGAN, Harry C. (B) 433 Glenhill Dr., Chattanooga 5, Tenn. (American Lava Corp.) 1UNGAN, Robert H. (BI) 6850 Meadowbrook Manor St. Louis Park, Minn. (Minneapolis-Honeywell Reg. Co.) HJNN, H. E. (R) PittsSbui ite 206, 300 Mt. Lebanon Blvd. XYPanitatsburgh 34, Pa. # 'Vanadium Corp. of America) [John P. (Wl 3UNN,aiPngxGlass Works, Corning, N. Y. Peter E. (G) Rauland Corp., 4245 N. Knox Ave. Chicago 41, 111. OUPLIN. V. J,, Jr. ( BFI) Box 785, Lynchburg. Va. (Babcock & Wilcox Co.) iu PONT, E. L, de NEMOURS & CO., INC. (John M. Olsen) Electrochemicals Dept. Wilmington 98, Del.. DURFEE, George L. IB) Wyman-Gordon Co. 105 Madison St., Worcester, Mass. DURHAM, Carl T. (E) 742 Windsor Ave., S. W. Roanoke, Va. (General Electric Co.) DURNWIRTH, Roy K. Box 273, Alfred, N. Y. d u r s t , William a . i b > Lynch Rd.. St. Marys, Pa. (Stackpole Carbon Co.) DUWEZ, Pol (B) California Inst, of Technology Pasadena, Calif. DYCK, Walter E. t.G> Pittsburgh Plate Glass Co. Works #4, Ford City, Pa. DYER, Kenneth A. (S) 4701 Finley Dr., Austin, Texas DYNES, Marvin W. (G) Van Dyne Quartz Works Box 148, St. Charles, 111. t Warren T. (E) ' Estaugh Ave., Haddonfield, N. J. niversal-Rundle Corp.) A, Edward J. (B) American Optical Co. Research Center VolS.o3u0th, bNridog. e,10Ma(s1s9. 07) E EAGLE, J. Eugene (M FI) 3202 McShane Way, Baltimore 22, Md. (Pemco Corp.) EAGLE-PICHER CO. (D. R. Carter) American Bldg., Cincinnati 1, Ohio EARHART. William H. (t.) RCA Victor, Glass Lab. S. Adam- St., Marion, Imi. EARL. J. Alfred (B) 1621 S. El Molino St. Alhambra. Calif. i Consolidated Electrodynamics Corp.) EASTER, George J. (RFI) Electro Refractories & Abrasives Corp. Willett Rd., Buffalo 19, X. Y. LASTLY. Michal R. 3,J37 Ashworth. Seattle o. Wash. EBERSOLE, Robert A. (R) Chisholm, Boyd & White Co. 610 W. 57th St., Chicago 21, 111. ECKARDT. Ronald B. ' 72`>E. Second S.. Salt Lake City. Utah F.CKF.L. Albert R. (.W) Commercialores, Inc., Clover, S. C. ECKEL, Harold A. Trinidad Clay Products, Ltd. 44, South Quay, Port of Spain Trinidad, B. W. I. ECKLEY, J. R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. ECONOMOS. George (W) 36 White Ave. Newton Centre 59, Mass. (Massachusetts Institute of Technology) EDGAR, Albert C. (W) Edgar Plastic Kaolin Co., Edgar, Fla. EDGAR, Clement B. (R) M. H. Detrick Co., 1620 Oliver Bldg. Pittsburgh 22, Pa. EDGAR PLASTIC KAOLIN CO. (Albert C. Edgar) Edgar, Fla. EDLIX. Vernon (B) 5860 X. Kenmore Ave. Chicago 40, 111. ( Armour Research Foundation) EDSTRAXD. Elmer W. (M) 5544 Bohlander Ave., Berkeley 1. 111. 1Lindherg Engineering Co.) EDWARDS. F. M. (Wl 4605 Crosby Rd., Knoxville 1. Tenn. I Knox Porcelain Corp.) EDWARDS, J. B. (S) Reliance Clay Products, Box 13226 Dallas 20, Texas EDWARDS. William R. (W) 424 Balsam Dr., Davison, Mich. 1A C Spark Plug Div., General Motors Corp.) EGERTON, Lawson (B) Bell Telephone Labs., Inc. Murray Hill, N. J. EHLERS. Ernest G. (B) Ohio State University Dept, of Mineralogy, Columbus, Ohio EHLERS, G. Milton (W) 4764 X. Oakland Ave. Milwaukee, Wise. EHM AX. Roy G. (GFI) 323 E. Hamilton Ave. State College. Pa. ( Pennsylvania State University) EHRLICH. Josef (W) 219 23rd, Santa Monica, Calif. (American Ceramic Products, Inc.) E1CHBAUM. Badane R. (W) E. Bend Park, 8 May Ct. Red Oaks Mill, Poughkeepsie, X. Y. (International Business Machines) EIDE, Alwin C. (E) American Zinc Sales Co., Box 327 Columbus 16, Ohio EISEXBERG, Marvin (R) 5425 S. Dorchester Ave. Chicago 15. 111. EISS. Roger L. Box 827, Alfred. X. Y. EITEL. Wilhelm iB ll Dir. of Inst, of Silicate Research University of Toledo, Toledo 6, Ohio EKDAHL, W. Graydon (G) Johns-Manville Research Center Manville, X. J. EKEDAHL. I. Charles (R) 1006 Gardner Ave.. Joliet. 111. (Illinois Clay Products Co.) EKELUXD, Bror S. ( B) Trionics Corp. Box 548. Madison 1, Wise. ELBL, William M. (Gi Pittsburgh Plate Glass Co. Works --10. Hcnrvetta. Okla. ELDER, J. C. (W l) Robertson Mfg. Co., Box 848 Trenton 5. X. J. ELECTRIC AUTO-LITE CO., SPARK PLUG DIV. (Robert Twells) Box 231, Fostoria. Ohio ELECTRO REFRACTORIES & ABRASIVES CORP. (Grant S. Diamond) 344 Delaware Ave., Buffalo 2. X. Y. ELJER CO., Enamel-Ware Div. (L. A. Bateman) Salem, Ohio ELLARD, Earle R. (R l) 344 Clinton Ave., Tiffin, Ohio (Basic, Inc.) ELLEFSOX, B. S. (G) Svlvania Electric Products, Inc. 1740 Broadway, New York 19, N. Y. ELLIOTT, Amos W. (B) Covered Wagon Ranch Cloverdale, Calif. ELLIO TT, C. Franklin (WJ) 3301 Pinewood Ave.. Apt. 41 Chattanooga, Tenn. (American Lava Corp.) ELLIS. Donald G. (M) West End Chemical Co. Div. Stauffer Chemical Co. 1956 W ebster St., Oakland 12. Calif. ELLIS, James S. Massachusetts Institute of Technology Rm. 4-051. Cambridge. Mass. ELLIS. J. Leslie (S) Box 47. Summitville, Ohio (Summitville Tiles. Inc.) ELLISON, Henry W. (G) 169 E. Third St., Corning, N. Y. (Corning Glass Works) ELLISON, R. W. (R) 1551 E. Loma Alta Dr. Altadena, Calif. ELMER, Thomas H. (B) 219 E. High St., Painted Post, N. Y. (Corning Glass Works) ELOSUA. Bernardo (DF) Ladrillera Monterrey, S. A. Box 360, Monterrey, N. L., Mexico ELSTON, Keith (W l) 117 Somerset Ave., Pittsfield, Mass. (General Electric Co.) ELY, William G. (G) Pittsburgh Plate Glass Co. 1 Gateway Center, Pittsburgh 22, Pa. EMANUEL, E. C. (G) Armstrong Cork Co. Research & Development Center Lancaster, Pa. EMHART MANUFACTURING CO. (W. H. Shorter) 333 Homestead Ave. Hartford 2, Conn. EMH1SER, Donald (R) 1105 Eighth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) EM ISON. M. Hershel (G) Corning Glass Works, Corning. N. A. EM LEY, William S. (W) W. Maitland Lane, R. R. 3 New Castle, Pa. (Shenango China, Inc.) EMMERICH, Charles W. Box 246. Alfred, X. A'. EMMERICH, Liberata (G) Pennsylvania State University Mineral Industries Library University Park, Pa. R o st e r 31 nimm-- m n RICH, Allen H. 750 Brookside Dr., Columbus 0, Ohio RICH, Barry R. (G Jlj .14.25 Anderson, S. E.. .Apt. B Albuquerque. X. M. i Anchor Hocking (Mass Corp.) RICH, Emerson VV. (M l) Vanderbilt Laboratories Jjorwalk, Conn. fHarold \V. (SI) 15oo a. Krameria, Denver, Colo, i Denver Brick & Pipe Co.) BERG, Christer Tegellaboratoriet (Brick Laboratory) Drottning Kristinas vag 45 Stockholm 0 , Sweden 'GLE, Glen B. ( B) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio GLERT, William J. (G) 304 Vernon St., New Kensington, Pa. (Pittsburgh Plate Glass Co.) JGLISH CHINA CLAYS SALES CORP. 551 Fifth Ave., New York 17, N. Y. HUS, Hans Gosta AB Malardalens Tegelbruk Stockholm 3, Sweden 7LOE, Scroop W. (M) Dillsboro, N. C. (H arris Qay Co.) . (LOE, Scroop W., Jr. (M) Harris Clay Co., Spruce Pine, N. C. yOCH, Charles R. (R) 320 Spring Ln., Bridgeport, Pa. (Refractory Specialties Co.) \'OS, W. Kenneth ' 193-D Congress St., Charleston, S. C. 2STEIN, Edward, Jr. (R) Laclede-Christy Works Refractories Div., H. K. P orter Co. 4705 Ridgewood Ave., St. Louis, Mo. RARD, Edward (G) Vidrio Neutro, S. A. Prolongacion Calle de la Rosa 9, Atzcapotzalco, D. F., Mexico |N , A. Alfred (G) prshing St., Corning, N. Y. ning Glass Works) RICKSON, Allen J. (G) 4239 E. 74th St., Seattle 15, Wash. (Northwestern Glass Co.) RIE TECHNICAL CERAMICS DIV. ERIE RESISTOR CORP. (Bobby L. Joyner.i Box 677, State College, Pa. RXST, Walter S. (Mi 908 Wedgewood Dr. Knoxville 14, Tenn. ' (Volunteer Portland Cement Co.) RSLEY, Emmett J. (GJ) R. R. 1, Box 352-B 24585 AVayman St., Newhall, Calif. (Thatcher Glass Mfg. Co.) IRVIN, Guy, Jr. (B) Research Laboratory, Norton Co. Worcester, Mass. :RWIN, Lee R. (G) 419 Tocino, Duarte. Calif. (Carrier Corp.) -RZEN, Frank C. I E ll 731 S. Greenberry Dr. West Covina, Caiif. (Bulwark Corp. of America) ^SCHENBURG, Robert L.. II Floresville, Texas -SSELSTYX. Willard A. ( G) R. R. 1, Canonsburg. Pa. (W. A. Esselstvn & Co.) -ST E S, Joseph F. (W) Haeger Potteries, Inc. 7 Maiden Lane, Dundee, 111. Si tThHEe Rr EeD: GE, Otis K. (M) Box 252, Gordon, Ga. uthern Clays, Inc.) ^Samuel F. (R) W. Nippon St. Philadelphia 19, Pa. (American Society for Testing Materials) Vo l. 30, N o. 1() (l<).-)7) EUBANK, William R. (B) 2301 Hudson Rd., St. Paul 6, Minn. (Minnesota Mining & Mfg. Co.) EUBANKS, Alfred G. (E) 10802 Stella Court, Kensington, Md. (National Bureau of Standards) EUSNER, George R. (R) . 1025 Summitt St., McKeesport, Pa. (United States Steel Corp.) EVANS, Charles E. (M) 170 Kendall Rd., Franklin Park, X. .1. ITitanium Alloy Mfg. Div. National Lead Co.) EVANS. C. L. (W) Uimersal Clay Products Co. 1528 E. First St.. Sandusky, Ohio EVANS, Daniel Owen (G) Hillcrest & Linden Ave., Mapleview Charleroi, Pa. (Corning Glass Works) EVANS, Edward J. Welsh Tinplate & ' Metal Stamping Co. Ltd., Box 14 Llanelly, Carmarthenshire, England EVANS. Isaac R. (G) Pittsburgh Plate Glass Co. Works #10, H enryetta, Okla. EVANS LEAD CORP. (Fred Leake, Jr.) Box 1467, Charleston 25, W. Va. EVANS PIPE CO. (T. J. Evans, III) Uhrichsville, Ohio EVANS, Richard F. (W) 504 N. Orchard Rd., Syracuse 9. X. Y. (Tru-Tile, Inc.) EVANS, Ross M. (S) 604 E. Mechanic St., Brazil, Ind. (Arketex Ceramic Corp.) EVANS, T. J., Ill (S) Evans Pipe Co., Uhrichsville, Ohio EVANS, W. Gordon Geo. L. Ashworth it Bros. Ltd. Broad Street Works Hanley, Stoke-on-Trent, England EVANS, William W. (SI) 1842 E. National. Brazil. Ind. (American Vitrified Products Co.) EVERHART, J. O. (S F I) Engineering Experiment Station Ohio State University Columbus 10, Ohio EWALD, Merwin R. (M) Box 19A, R. R. 1, Monclova, Ohio (Surface Combustion Corp.) EWING. Robert F. (W I) Mansfield Sanitary. Inc. Perrysville. Ohio EXOLON CO. (Harvey J. Robillard) 1000 E. Niagara St., Tonawanda, N. Y. EYERLY, George B. (S) Malvern Brick & Tile Co., Box 415 Malvern, Ark. F FABER. William M. 1207 W. Oregon. Apt. D, Urbana. 111. FABIAXIC, W. L. (R) Laclede-Christy Works Refractories Div., H. K. Porter Co. 4705 Ridgewood Ave., St. Louis. Mu. FABRICA de LADRILLOS INDUSTRIALES, y REFRACTARIOS, S. A. (Salvador Odriozola Gomez) Apartado 390, Monterrey, N. L., Mexico FABRICA de PORCELANA da VISTA ALEGRE, LDA. Gabinete a Lab. Central de Estudos Candal, Vila Nova de Gaia, Portugal FACKT, George P. (WF) 408 Paseo del Ma., Box 878 Palos Verdes Estates, Calif. (Redondo Tile Co., Ltd.) FAHRENBRUCK, William O. (GI) R.R. 1, Box 95, Tiffin, Ohio (Sterling Grinding Wheel Co.) FA1LMEZGER, Howard (W FI) Victor Insulators Div., I-T-E Circuit Breaker Co. Maple Ave., Victor, N. Y. FAIN. Charles C. (X) Box 924. Clemson, S. C. (Clemson College) FAIRFACTS CO., (J. Ryan Smith) Fairfacts St., Trenton 8, N. J. FALCONER, Donald P. (R) 1018 Maple Ave., Evanston, 111. (Sales Engineer) FALES, Gordon E. 8141 S. Ellis A\e.. Chicago 1. 111. FALLON. Frank J. (W I) 30 Foster Dr.. Framingham, Mass. (Raytheon Manufacturing Co. I FALLS, Joseph (Gi Dearborn Glass Co., 6900 S Harlem Bedford Park, P. O. Argo, 111. FALTER, Arthur H. (R) 8635 Jacob PL, Niagara Falls, N. Y. (Carborundum Co.) FANDERLIK. Milota Skroupuva 957 Hradec Kralove. Czechoslovakia FARGO. Jarvis J. (R) 2849 El Caminito, La Crescenta, Calif. (Gladding. McBean & Co.) FARKAS, Howard (D) United States Stoneware Co. 60 E. 42nd St., New York 17, N. Y. FARNELL, James H. (W) Louthan Manufacturing Co. East Liverpool, Ohio FARR, Archie E. (E) O. Hommel Co., Box 475 Pittsburgh 30, Pa. FARROW, Lewis C. (E) R. R. 1, Clyde, Ohio (Whirlpool Corp.) FASOLD, G. A. (E) 7329 Bernard Ave., Cincinnati 31, Ohio (Philip Carey Mfg. Co.) FAUCHON-BAUDOT, J. B. Ets. Fauchon-Baudot 21, Ave. de Tourville, Paris 7, France FAULKNER, Karl B. (G) 179 Victory Hwy., R.R. 2 Painted Post, N. Y. FAUST, Ernest H., Jr. (R I) 58 Klarman Dr., Mt. Carmel, Conn. (American Refractories & Crucible Corp.) FAUST, George T. (B) 9907 Capitol View Ave. Silver Spring, Md. (U. S. Geological Survey) FAY, Wayne X. (RI) 707 Knox Rd., Villanova. Pa. (General Refractories Co.) FEAGIN, R. C. (BI) Austenal, Inc., Box 625, Dover, N. J. FEASTER. Richard V. (BJ) 2606 Urbahn, Laredo. Texas (U. S. Air Force) FEDERAL GLASS CO. (Henry H. Blau) 515 E. Innis Ave. Columbus 7, Ohio FEDERAL SEABOARD TERRA COTTA CORP. (O. E. Mathiasen) Box 301, Perth Amboy, N. J. FEDOCK, Michael P. (R) 4214 Ashwood Dr., N. W. Canton 8, Ohio (Republic Steel Corp.) FEHR, Gerald K. West Bend. Iowa FEIGELSON, Robert S. Westchester House, Rm. 1008 Fort Worth. Texas FELD, Philip (RJ) 3900 Tyler Ave.. Apt. 1. El Paso. Texas (U. S. Army) FELDMAN, Gail H. (GJ) 43 Villa Ct., Hempstead, N. Y. (United States Navy) R oster 33 -KER, Ernest (W) 8408 Summer Rd., R. R. 2 Xorthfield, Ohio (Ferro Corp.) .LOW S, R. L. (E F I) 748 N. Kensington Ave., La Grange, III. (Century Vitreous Enameling Co.) . (RI) rrest Ave. lain held, X. J. (Fels Refractories, Inc.) -TON, Ernest 990 N. Park Ave., Pomona, Calif. \'ER TY , M. J. (B) Aluminum Co. of Canada Arvida, Que., Canada VG, Chi-Eng Taiwan Power Co. No. 1 Staff-Resistance Kuo-Tze-Ko, Mo-Shun Taipei. Taiwan. Formosa. China \'ITY, Robert D. (\YI Minneapolis-H oney well Research Center 500 Washington Ave. S., Hopkins, Minn. NSTERMACHER, John E. (RJ) 302 Cherry, Clearfield, Pa. (Harbison-W alker Refractories Co.) NTON, Walter M. (E) Lithium Corp. of America, Inc. 2560 Rand Tower, Minneapolis 2, Minn. NTZKE, A. Daniel (R) 2330 Getzen Dr., Augusta, Ga. (Babcock & Wilcox Co.) RENCE, Michael, Jr. (B) Ford Motor Co., Scientific Lab. Box 2053, Dearborn, Mich. RGUSON, Donald Box 929, Alfred, N. Y. RGUSON, Douglas J. (D) Pigeon Forge Pottery Pigeon Forge, Tenn. RGUSON, D. Robert, III (R) 401 Vine St., East Liverpool, Ohio Kt Brick Co., Inc.) , Robert F. (G) eb Drive, Zanesville, Ohio (Continental Can Co., Inc. Hazel-Atlas Glass Div.) RGUSON, Robert L. (S) Yankee Hill Brick Mfg. Co. 728 Stuart Bldg., Lincoln 8, Nebr. RREIRA, Laurence E. (B) 1221 111 St., Apt. 2C. Golden, Colo. (Coors Porcelain Co.) RRES, Daniel Vidplan S. A., Real No. 4415 Montevideo, Uruguay RRIS, Harry Philip (M) 20 Birch Dr., Levittown, Pa. (Simonds Abrasive Co.) RRIS, James E. (G) H ooker Electrochemical Co. Niagara Falls, N. Y. RRO CORP. (R. A. Weaver) 4150 E. 56th St., Cleveland 5, Ohio RRO ENGINEERING CO. (Benjamin F. Anthony) Box 6508, Cleveland 1, Ohio SLER, Ray T. (W ) A.A.A. Corp.. Box 270, Gadsden, Ala. SSLER, A. H. (W FI) H ighland Park Sta.. Panama City, Fla. ( A C Spark Plug Div.. General Motors Corp.) TTER, H. (R) Cia. Mexicans de Refractarios A. P. Green, S. A., Hamburgo 51 Apartado Postal 71 Bis, Mexico, D. F. TTERLEY, Guy H. (R) Box 26, Chippawa. Ont., Canada i Co.) LF, Fred (R) um Co. of America ctory Pkv.. Cincinnati 8, Ohio TTERS. Cecil R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5, Ohio L. 36, No. 10 ( 1967) FETZER, George W. (M) FITZPATRICK, William D. (R) 1205 17th Ave., Columbus 11, Ohio 5127 S. Passage Dr.. Pittsburgh 36, Pa. (George Fetzer Ceramic Supplies) (Harbison-W alker Refractories Co.) FEYLIN'G, Claus A. FITZSIMMONS, Elmer S. (RI) Eie Stentpifabrik Chem. & Abrasives Research Dept. Egersund, Norway Cincinnati Milling Machine Co. FIBERGLAS CANADA, ETD. Cincinnati 9, Ohio (John MacRae) Box 309 FITZSIMMONS, Robert F. (W) Guelph, Ont., Canada R. R. 1, Oakfield, N. Y. FIEDLER, William S. (G) (Lapp Insulator Co., Inc.) Bjorksten Research Labs., Inc. FIX, Frank A. (X) Box 265, Madison 1, Wise. Posey Iron Works. Inc. FIELD, Theodore E. (B) Brick Machinery & Mixer Div. Corhart Refractories 'Co. Lancaster, Pa. 1600 W. Lee St., Louisville 10, Ky. FIX , William G. (M) FIELDS, David T. (EJ) Carborundum Co., Globar Div. 2505 N. W. Sixth St., Gainesville. Fla. 3335 W. 47th St., Chicago 32, 111. (Metal Enameling Corp. of Florida) FLANAGAN, Charles D. (B) FIELDS. Ernest. Jr. (R) 1152 Oak Hill Ave., Attleboro, Mass. R R. 1. Box 30, Frostburg. Md. (Metal & Controls Corp.) ( Big Savage Refractories Div.) FLEISCHER, Arthur (B) FILES, John A. (B) ' Nickel Cadmium Battery Corp. Box 47, Ambov, Ind. Box 349, Easthampton, Mass. (RCA Tube Div.) FLEMING, A. P. M. F IL IP P I, Charles R. (S) Metropolitan Vickers Electrical Co., Ltd. Illinois Brick Co. Trafford Park, Manchester 17, England Box 206, Blue Island, 111. FLEMING, Charles A. (E l) FILIPPI. Hugo (SF) 3613 General Bates Dr. 11406 Calumet Ave., Chicago 28, III. Nashville 4, Tenn. (Illinois Brick Co.) (Pemco Corp.) FILLMORE, Charles L. (W I) FLEMING, David M. (SJ)' Globe-Union, Inc. 940 N. Front St., Milton, Pa. 900 E. Keefe Ave.. Milwaukee 1, Wise. (Glen-Gery Shale Brick Corp.) FINDLAY CLAY PRODUCTS CO. FLEMING, Thomas T. (R) (R. S. Craft) Washington, Pa. Frank Samuel & Co., Inc. FINKEL, Robert G. Box 163, W adsworth, 111. 2200 Lincoln-Liberty Bldg. Philadelphia 7, Pa. FINLAY, G. R. (R) FLEXON, John D. (R) 2231 Waters Ave. Niagara Falls, Ont., Canada (Norton Co.) 3440 Gallatin Rd., Toledo, Ohio (Owens-Illinois) FLICK, Fulton B. (R) FINLAYSON, John R. (X) Brown, Critchlow, Flick & Peckham American--Standard, Foreign Div. 40 W. 40th St., New York 18, N. Y. 1706 First National 'Bank Bldg. Pittsburgh 22, Pa. FINNEY, Edwin L. (S) FLINT, E. P. (BI) Qaycraft Co., Shawnee, Ohio Arthur D. Little, Inc. FIRESTINE, Arthur G. (G) 30 Memorial Dr., Cambridge 42, Mass. 34 Dewey Ave., Fairport, N. Y. (Bausch & Lomb Optical Co.) FLIN T, Francis C. (G FI) Continehtal Can Co., Inc. FISCHER, Eugene A. (R) Hazel-Atlas Glass Div. 108 Newton Ave., N. 15th & Jacob Sts., Wheeling, W. Va. Worcester 9, Mass. FLORENCE, Jack M. (G) (Norton Co.) Kimble Glass Co. FISCHER, Robert J. (W) Box 1035-1036, Toledo 1, Ohio 18 Fairway Ave. FLORIDA TIL E INDUSTRIES, INC. West Long Branch, N. J. (James W. Sikes) 608 Prospect St. (Signal Corps Engineering Labs.) Box 451, Lakeland, Fla. FISH, E. Thomas (R I) FLU, Eldon Bruce (W ) Great Lakes Carbon Corp. 1533 Crooks Rd., Royal Oak, Mich. 58th & Pine Ave., Niagara Falls, N. Y. (Ceramic Div. FISHER, Eugene A. (W ) Champion Spark Plug Co). Electric Auto-Lite Co. FLYNN, Paul H. (B) Spark Plug Div., Fostoria, Ohio International Nickel Co., Inc. FISHER, Henry C. (R) Bayonne Works, Bayonne, N. J. 50 Coventry Rd., W orcester 6, Mass. FOGELBERG, Sven (Norton Co.) Webb's Crystal Glass Co., Ltd. FISHER, Joseph R. (W ) Dennis Glassworks Bell Telephone Labs., Rm. 1A-341 Stourbridge, England Murray Hill, N. J. FOLKERS, Charles L. (R) FISHER, Richard G. 524 X. Second St.. Apt. 13 17 Wells St. Hornell, N. Y. San Jose 12, Calif. FISHER, William V. (G) Anchor Hocking Glass Corp. (Kaiser Aluminum & Chemical Sales Corp.) Lancaster, Ohio FONTANA, Eugene H. (G) FISHLEY, William S. (W ) Box 259, Corning, N. Y. Sparta Ceramic Co. (Corning Glass Works) East Sparta, Ohio FONVIELLE, Frank P,, Jr. (WI) FISH-SCHURMAN CORP. Dentist Supply Co. of New York (Murray Yawitz) 70 Portman Rd. 500 W. College Ave., York, Pa. New Rochelle, N. Y. FOOTE MINERAL CO. FITZGERALD, Alex E. (RI) (John D. Clark). 18 W. Chelten Ave. A-4 Avon Apts., Narberth, Pa. Philadelphia 44, Pa. (General Refractories Co.) FORAKER, Robert W. (E l) FITZGERALD, J. Vincent (W) Titanium Pigment Corp. Tile Council of Am. Research Center 99 Hudson St., New York 13, N. Y. Rutgers. The State University FORBES, Charles C. (G) School of Ceramics Allen B. Du Mont Labs. New Brunswick, N. J. 750 Bloomfield Ave., Clifton, N. J. R o ster 3."> ORBES, Lewis J-B. (G) Pilkington Bros. (Canada) Ltd 165 Bloor St., E. Toronto 5, Ont., Canada ORD, Frank J. (W) Jordan Tile Mfg. Co. 909 Railroad St., Corona, Calif. OREL Frred J. C5) 95, San Francisco, Calif. ultant) OkWt G<eorge E'. (W I) 2136 Wilmer St., Zanesville, Ohio (Mosaic Tile Co.) ORD MOTOR CO. (Michael Ference, Jr.), Scientific Lab. Box 2053, Dearborn, Mich. ORD, Walter D. (GD Pittsburgh Corning Corp. Research & Development Div. Port Allegany. Pa. 'ORD, William D. (E) 1704 W. 54th St.. La Grange. 111. (Sears Roebuck & Co.) FORDS PORCELAIN WORKS (I. A. Hansen) Perth Ambov, N. 1. FORESMAN, Grover C. (G) .. 212 Cedar St., Corning, N. Y. (Corning Glass Works) FORESTER, Wilfred G. (M) Veritas Firing System Co. Box 974, Trenton 6, N. J. FORJAZ, Nicolau Porto Ferreira, C. P. Sao Paulo, Brazil ' FORKNER, Henry R. (X I) , 201 Fairview Ave., Blacksburg, Va. (Virginia Polytechnic Institute) FORMAN, Sydney A. (B) Dept, of Agriculture, Chemistry Div. Science Service ' Ottawa, Ont., Canada FORNIA, Robert F. (EJ) 204 Harmon Dr., Lubbock, Texas ! (U. S. Air Force) FORTH, Robert D. (E ) 1369 N. W. Ciircle Dr. pkakee, 111. rence Stove Co.) F(5SWCK. Marion L. (D F) 100 X. Main St.. Alfred. X. Y. FOSTER, Bryan D. 141 E. State St., Wellsville. X. Y". FOSTER-FORBES GLASS CO. (F. R. Motsch) Marion, Ind. FOSTER, H. B. (Si Brick & Tile Service, Inc. Box 6305 Summit Sta. Greensboro, X. C. FOSTER, Luther M. CB) Aluminum Co. of America Alcoa Research Labs. Box 772, New Kensington, Pa. FOSTER, Wilder D. (B) 5405 Bower Ave., Verona, Pa. (U. S. Bureau of Mines) FOSTER, Wilfrid R. (BF) Department of Mineralogy Ohio State University Columbus 10, Ohio FOSTORIA GLASS CO. (Roy G. YeateO Moundsville. \V. Va FOULDS, Donald T. (W) 4505 W. 145th, Cleveland 11, Ohio (Cleveland Ceramic Corp.^ FOX, Charles S. (R) Aluminum Co. of America 3615 Olive S.. St. Louis 8, Mo. FOX, Marilyn Box 161, Alfred, N. Y. BRAD, William A. (R) 1800 Oak St., Rolla, Mo. (Missouri School of Mines) FRAHME, Herman H. (W l) 2358 Banning Rd., Akron 13, Ohio ILL S. Stoneware Co.) E, Dudley P., Jr. (I) A. eabrica Nacioual de Porcelana S. Apartado 2056, Caracas. Venezuela FRANCE, J. H., REFRACTORIES CO. Vol(.W3i6ll,iaNmoA. . 1F0ran(1ce9)57Sn)ow Shoe. Pa FRANCE, William A. (R) J. H. France Refractories Co. Snow Shoe, Pa. FRAXCESCHIX1. Fellppe J. V. de A. Ceramica Sao Caetano Cai.xa Postal 278, Sao Paulo, Brazil FRANCIS. Ronald K. (IJ Box 164, Alfred, X. Y\ FRANCISCO, Allen C. (RD 2S0 Brook Lane. Chesterland, Ohio I Kolcast Industries, Inc.) FRANCK. Leon Ets. Franck & Steeman, S. A. 20. Avenue Emmanuel Haren-Nord/Brussels, Belgium FRAXCL, Josef (B) 1802 Perth St., Toledo 7, Ohio ( O w ens-Illinois) FRANK. Henry A. (W) Rockport Sanitary Pottery Corp. Rockport. Ind. FRANK, John (D) . Frankoma Pottery, Box 789 Sapulpa, Okla. FRANKLIN. Earl W. (GD 401 Broad St.. Port Allegany, Pa. ( Pittsburgh Corning Corp.) FRANKLIN. William S. (W I) 70-07 261st St.. Glen Oaks, L. L. X. Y. I Sperrv Gvroseope Co.) FRANKOMA POTTERY (John Frank) Box 789 Sapulpa, Okla. FRANTZ. Samuel G. (M) S. G. Frantz Co., Inc. Box 1138, Trenton 6. N. J. FRANTZ, S. G,, CO., INC. (Samuel G. Frantz) Box 1138 Trenton 6, N. J. FRANTZ. Thomas O. (W) 15 Echo Lane, Levittown, Pa. (Trenton Potteries Co.) FRANZ, Leo J. (S) Acme Brick Co., Malvern, Ark. FRASER. Orray T. (GI) 574 E. Mithoff St., Columbus 6, Ohio (B. F. Drakenfeld & Co., Inc.) FRASER, Walter A. (G) 1320 E. 56th St., Chicago 37, 111. (Chicago Midway Laboratories) FRASER. W. R. (S) Fr.i'er Brick Co., Box 144 Dallas 1, Texas FRAULTNI. Felix M. (R) South Shore. Ky. (Plibrico Co.) FRAZIER. C E. (GF) Frazier-Simplex, Inc. 436 E. Beau St., Washington, Pa. FRAZIER. C T. fG) 527 E Beau St.. Washington. Ta. (Frazier-Simplex. Inc.) FRAZIER. T. Earl (GFI) Frazier-Simplex, Inc. 436 E Fean St.. Washington, Pa. FRAZIER-SIMPLEX, INC. (C. E. Frazier) 436 E. Beau St. Washington. Pa. FRECHETTE. Howells (Life, SF) 52 Park Ave.. Ottawa, Ont.. Canada FRECHETTE, Van Derek (BFI) State University of New York College of Ceramics Alfred, N. Y. F R F.DF.RICK. C. L. (RI) 235 Meadowood Ln. Chagrin Falls, Ohio (North American Refractories Co.) FREDERICK. Gilbert M. (R) Babcock & Wilcox Co. 3 Penn Center Plaza Philadelphia 2, Pa. FREDERICK. Vernon W. (G) Libbev-Owens-Ford Glass Co. Rossford, Ohio FREDERICKS, John D. (S) Pacific Clay Products Box 2178. Terminal Annex Los Angeles 54, Calif. FREDERICKS, John D. 411 Herrick St., Elmira, N. Y'. FREDRIKSSON, John I. (R) Norton Co., Box 87 Niagara Falls, Ont., Canada FREEMAN, Charles A. (R FI) Freeman Fire Brick Co. Box 606, Canon City, Colo. FREEMAN, Edgar H. (W) Norris-Thermador Corp. 20118 E. Valley, Walnut, Calif. FREEMAN, John L. 4781 Wallingford St. Pittsburgh 13, Pa. FREEMAN, Joseph (R) General Electric Co. 319S Chestnut St., Philadelphia 4, Pa. FRENCH, Myrtle M.. (DF) 128 N. Main St., Alfred, N. FRENCH, Preston W. (G l) 1517 Union Ave., Brackenridge, Ta. (Pittsburgh Plate Glass Co.) FREY, E. F. (Ml DeVilbiss Co. Phillips & Detroit Ave. Toledo 1, Ohio FREYDELL, Octavio Loceria Colombiana Apartado Aereo 10-46 Medellin, Colombia FRID DLE, Edward W. 15 S. West St., Raleigh, N. C. FRIEDBERG, Arthur L. (EF) University of Illinois 217 Ceramics Bldg., Urbana, 111. FRIEDMAN, Louis K. (W ) Homer Lnugltlin China Co. 212 Fifth Ave., New York. N. Y. FRIGIDAIRE DIV. GENERAL MOTORS CORP. (W. H. Pfeiffer), Engineering Lab. Plant #2, Dayton 1, Ohio FRISK , Norman E. (R) 2046 Evansdale Ave., Toledo 7, Ohio (Owens-Illinois) FRITZ, Earl C. (W) 86 S. Main St., Franklinville. X. Yr. (Precision Ceramics, Inc.) FRITZ, E. H. (W FI) 710 Walnut St., Latrobe, Pa. (Stupakoff Div., Carborundum Co.) FROBERG, Laird (R) Owens-Corning Fiberglas Corp. Case Ave., Newark, Ohio FROME, Howell E. (M) United Fuel Gas Co., Box 1273 Charleston 25. W. Va. FRONCZAK, E. T. (S) . Richland Shale Brick Co., Box 328 Mansfield, Ohio FROST, Leon J. (M) Box 138, Lewiston, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) FRY. Herbert G. National Enamels, Ltd., 53 Norman Rd Greenwich, London. S. E. 10. England FRYE, Harry D. (G) R. R. 4, Vincennes, Ind. (Blackford Window Glass Co.) FRYE, John C. (B) State Geological Survey 121 Natural Resources Bldg. Urbana, 111. FRYE, John F. (R) Olive Hill. Ky. (General Refractories Co.) FRYSINGER, James B. (M) Pennsylvania Glass Sand Corp. Two Gatewav Center. Pittsburgh. Pa FUENZALIDA, Javier H. (W) Foreign Div., American Radiator X Standard Sanitary Corp. 40 W. 40th St., New York IS. N FLrJ 11. Takashi University of North Carolina Dept, of Chemi.strv, Chapel Hill, N. C. FULKER. Richard H. (EJ) 1408 Nicklin Ave., Pk|ua, Ohio (Pemco Corp.) R oster 37 LLER, A. A. (X) 322 S. Twyckenham Dr. South Bend, Ind. (Sollit Construction Co., Inc.) LLER, Donald H. (E l) 335 S. Cook Ave., Trenton, N. J. (Trenton Fabricated Metal Co.) L I A L . R. (E l) South St., Frankfort, Ind. ^^^PFm-Richardson, Inc.) LLER, Richard B. (W I) Universal Clay Products Co. 1528 First St., Sandusky, Ohio LLER, Richard G. (W ) D. E. McNicol Pottery Clarksburg, W. Va. LLER, Wilfred (E) General Steel Wares Ltd. Adelaide & Nelson Sts. London, Ont., Canada LMER, Raymond C. (W I) Stackpole Carbon Co.. St. Marvs. Pa. LRATH, Richard M. (RI) University of California 264 Hearst Mining Bldg. Berkeley 4, Calif. NK, Harry C. (G) Eagle-Picher Co., Insulation Div. Box 290, Joplin, Mo. S'KEY, John H. (G) Carr-Lowrey Glass Co. Box 356, Baltimore 3, Md. XKHOUSER CO. (R. L. Crouch) Box 312, Blue Ridge Summit, Pa. VNELL, John E. (MI) Southwest Research Institute Box 2296, San Antonio 6, Texas ITH, John V. (E) 7542 Cabrillo Ave., La Jolla, Calif. (Solar Aircraft Co.) 5SELL, Lynn E. (E) 3501 Tyrone Dr., Louisville 18, Ky. (General Electric Co.) VA, Tasuku Tohoku University D s ^ p f Metallurg}', Sendai, Japan FNEY, LeRoy J. 1104 W. Oregon St., L'rbana, 111. UN, L. V. (G) 2616 Latonia Blvd., Toledo 6, Ohio (L-O-F Glass Fibers Co.) LEY, Matthew D. 1800 Roanoke St., Seattle 2, Wash. NER, Taylor M. (\V) 215 Steedley Dr., Louisville 14, Ky. (American Radiator & Standard Sanitary Corp.) SER, R. A rthur (G) Ball Brothers Co., Inc., Muncie, Ind. -BREATH, William W., Jr. (R I) Babcock & Wilcox Co. 1201 Kemper St., Lynchburg, Va. E, K EN N ETH (D) Mosaic Tile Co., Zanesville, Ohio E, Richard H. (B) 183 Ridgewood Rd. West Hartford, Conn. (Combustion Engineering, Inc.) LUP, John (GI) Radio Corp. of America, Tube Div. 415 S. Fifth St., H arrison, N. J. USHA, Richard L. (W) Continental Ceramic Corp. Box 41, Biglerville. Pa. VIN, G. H,, Jr. (S) Rockford Brick & Tile Co. Rockford, Iowa VIN, Richard J. (S) Sheffield Brick & Tile Co. Sheffield 1, Iowa IJ jJ M p a v id L. (R) N ^^^V sey Zinc Co. of Pa. R e S K h Dept., Palmerton, Pa. BLE, John D. (W ) Bell & Gossett Co., 8200 Austin Ave. Morton Grove, 111. . :{(), N o. 10 (19AT) GANDY, Robert J., Jr. 2261 Ontario Ave. Niagara Falls, X. Y. GANGLER. James J. (R) 20538 Stanford Ave. Fairview Park 26. Ohio (National Advisory Committee for Aeronautics) GANGULI, Umapati Bengal Enamel Works Ltd. P. O. Bengal Enamel, Dist. 24 Parganas West Bengal, India GANPULE, Anant K. _ . Parshuram Pottery Works Co., Ltd. Morvi, Saurashtra, India GANTS, Sheldon B. (D) Ceramic Associates, Inc. 3650 Dvre Ave., New York 66, N. Y. GARBISCH, Norbert S. (W ) Garco Products, Inc. Box 351, Butler, Pa. GARCIA-LEAL, Ramon (MI) Apartado Postal 1115 Monterrey X. L., Mexico (Manufacturers Representative) GARCO PRODUCTS, INC. (Norbert S. Garbisch) Box 351 Butler, Pa. GARDEN, Henry R., Jr. (S) Box 508, Salem, Va. (Old Virginia Brick Co., Inc.) GARDNER, John B,, Jr. (S) Hope Brick Works Box 155, Hope, Ark. GARDNER, Walter E. (S) Ladrillera Monterrey S. A. Apartado 360 Monterrey, N. L., Mexico GARDON, Robert (G) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. GARFIELD REFRACTORIES CO. (Kenneth A. Rugh) Bolivar, Pa. GARLAND, C. F. (S) Mason City Brick & Tile Co. Mason City, Iowa GARLICK, Oakley H. (M) Paul O. Abbe, Inc. 400 Center Ave., Little Falls, N. J. GARLICK, Philip L. (I) 1 Gladys St., Cyrildene Johannesburg, South Africa (Primrose Brick Works) GARONZIK, S. H. (S) 4211 Brookview Dr., Dallas, Texas (Crown Brick Mfg. Co.) GARRONI, Ricardo Rua Padre Joao Manuel 975 Sao Paulo, Brazil (Ceramica Sanitaria Porcelite S/A ) GARSTANG, Alec King, Taudevin & Gregson Ltd. Grindlegate Works, Scotland St. Sheffield 3, York, England GARTNER, Carl W. (W ) General Color & Chemical Co., Inc. Box 7, Minerva, Ohio GARTNER, George C. (W ) General Color & Chemical Co., Inc. Box 7, Minerva, Ohio GARVE, T. Walter (S F I) 69 W. Weisheimer Rd. Columbus 14, Ohio (Consulting Engineer) GARVERICK, R. A. (D) Huber-W arco Co. American Clay Machinery Div. 202 N. Greenwood St., Marion, Ohio GARVEY, Lawrence P. (WI) RCA Victor, 415 S. Fifth St. Harrison, N. J. GASKINS, W. W. (MI) Sierra Talc & Clay Co. Box 390, South Pasadena, Calif. CASQUE, W. D. Box 2821, Clemson College Sta. Clemson. S. C. GATES, Daniel W. (BI) 3026 Crescent Circle, S. E. Huntsville, Ala. (U. S. Army Ord., Redstone Arsenal) GATES. Louis E., Jr. (B) 5247 Knowlton St. Los Angeles 45. Calif. (Hughes Aircraft Co.) GATES. Major E. (R) 773 Vista Grande Ave. Los Altos, Calif. GATLIN, E. H. (S) Texas Clay Products Co. Box T. Malakoff, Texas GAUDIANO, Victor M. (W ) Sanitarios El Aguila S. A. Apartado Po=tal 26808, Zona 14 Mexico, D. F. GAUNDER, Wilbur F. (G) Pittsburgh Plate Glass Co. Works No. 11, Mt. Vernon, Ohio GAUTSCH, Murray C. (M I) Metal & Thermit Corp. 415 E. 151st St., East Chicago, Ind. GAVIN, G. P. (W) Kohler Co., Kohler, Wise. GAWTHROP, Alfred (S) 885 Maplewood Rd., Lake Forest, 111. (Chicago Brick Co.) GEE, Kenneth H. (B) 2033 Westfield Terrace, Bethlehem, Pa. (Bethlehem Steel Co.) GEIER, Philip O., Jr. (R) Cincinnati Milling Products Div. Cincinnati Milling Machine Co. 4701 Marburg Ave., Cincinnati 9, Ohio GEIGER, Charles F. (R FI) Carborundum Co., Box 268 Perth Amboy, N. J. GEIGER, Joseph S. (M) 46 E. Welling Ave. Pennington, N. J. (Titanium Alloy Mfg. Div., National Lead Co.) GEISINGER, E. E. (E F ) Pfaudler Co., 1000 West Ave. Rochester 3, N. Y. GELLER, R. F. (W FI) 5427 York Lane, Bethesda 14, Md. (National Bureau of Standards) GELSTHARP, Frederick (GF) 1134 Park St., Tarentum 1, Pa. GELTMAN, Gerald (BJ) 276 W inthrop Rd., Teaneck, N. J. (Curtiss-W right Corp.) GEMP, Robert W. (R) 500 Michell St., Ridley Park, Pa. (Botfield Refractories Co.) GENDEL, Sydney Z. (R) 4050 Eastway Rd. South Euclid 21, Ohio (Zirconium Corp. of America) GENERAL CERAMICS CORP. (Salvatore Ortepio) Crows Mill Rd., Keasbey, N. J. GENERAL COLOR & CHEMICAL CO., INC. (George C. Gartner) Box 7, Minerva, Ohio GENERAL ELECTRIC CO. (L. E. Thiess) Insulator Dept. Box 57, Baltimore 3, Md. GENERAL ELECTRIC CO. (W. S. Kahlson) Lamp Dept., Pitney Glass Works Nela Park 12, Cleveland, Ohio GENERAL ELECTRIC CO. Specialty Electronic Components Dept.. (N. F. Shofstallf 1811 LeMovne Ave., Svracuse 8, N. Y. GENERAL GLASS INTERNATIONAL, INC. (Victor A. Plumbo) 5 S. Virginia Ave. Atlantic Citv, N. J. GENERAL REFRACTORIES CO. (Russell P. Heuer) 1520 Locust St. Philadelphia 2. Pa. GENERAL SHALE PRODUCTS CORP. i R. B. Hockaday), Kingsport, Tenn. R oster 39 NTRY, Raymond (G) Alexander H. Kerr & Co., Inc. Box 2008, Santa Ana, Calif. N'TSCH, A. Page (M) United Clay Mines Corp. 101 Oakland St., Trenton, N. J. N'TSCH, Bernhard F. (M) U m ^d Clay Mines Corp. ^ ^ ^ ^ k la n d St., Trenton. X. J. R. (W) C^^msburg Pottery Co. Canonsburg, Pa. ORGIA-CAROLINA BRICK & T IL E CO. (J. C. Hagler, Jr.) 10 Campbell Bldg., Augu"ta. Ga. ORGIA KAOLIN CO. (Robert H. Bollinger) 4.13 X. Broad St., Elizabeth 3, X. . PHART, Charles D. (S) Cedarhurst, Holly Springs. Mi**. (Hullv Springs Brick & Tile Cu., Inc.) RBER, Oscar L. (W ) Gerber Plumbing Fixture Corp 232 X. Clark St., Chicago 1, III. RCAR, Francisco J. S. A. Cristaleras Del Uruguay Comercio 1491, Montevideo, Uruguay RSTENSCHLAGER, V., Jr. (R) Babcock & Wilcox Co.. Box 923 Augusta, Ga. RSTER, C. W. (W I) Box 614, East Liverpool. Ohio (Patterson Foundry & Machine Co.) THIN, H. Wynn (R) H. K. Porter Co., Inc., Refr. Div. 2500 First National Bank Bldg. Pittsburgh 22, Pa. TTO, Allan (B JI) Pratt & Whitney Aircraft Canel Project, Middletown, Conn. ERIXG, Leonard G. (GF) Preston Laboratories Box 149, Butler, Pa. 'iCOMELLI, Domenico So^_It.- Refrattari M ^ ^ K ra Azionaria ^ ^ ^ H lu strie 52 Cas. Post. 308 jfl^ ffe ra . Venice, Italy ^XG, Yu Kim Choan Huat Co. Inc. I l l Jose Rizal St., Mandaluyong Rizal Province, Philippines B, Mary J. American Ceramic Society 4055 X. High St., Columbus 14, Ohio BOXS, J. A rthur (S) Elgin Standard Brick Jtlfg. Co. Box 546. Elgin. Texas IBS, Melvin B. (E) Inland Steel Co., Quality Control Dept. East Chicago, Ind. IBS, William C. (R) W. C. Gibbs Co. 401 Brown Marx Bldg. Birmingham, Ala. 'SON , Frank B. (E) 9 Terrace Circle Great Neck, L. I., N. Y. ( Seaporcel Metals. Inc.) SON, R. L. (W I) 1314 Wilmington Ave. New Castle, Pa. ( Shenango China, Inc.) SOX, Robert C. (E) Parker Rust Proof Co. 2177 E. Milwaukee Ave. Detroit 11, Mich. -SEKE, Frans Koekums Emaljerverk Ronnebv. Sweden -SER. Ralph H., Jr. (E) Rheem M anufacturing Co. 43(^^*'irestone Blvd. S ^ ^ ^ G a te , Calif. S ^ ^ H v a rd A. (I) BS W 3 , Alfred, N. Y. .. David (D) 122 McCall St.. Bennington, Vt. (Cooperative Design) l . :w . \ o . H) ( lu.-)7) GILBERT. Ark G. (S) GLASER, Frank W. (B) Fate-Root-Heath Co., Plymouth, Ohio Alloy Precision Castings Co. GILBERT. Frank C. ' 3855 W. 150th St., Cleveland 11, Ohio J^L atay ette Ave.. Middletown, X. Y. GLASER, John H. (G) GILBERT. George W. (G) Uniscience Inc. Owens-Corning Fiberglas Corp. 112 Crooked Billet Rd., Hatboro, Pa. 59S Madisuu Ave., Xe\v*York 22. N. Y. CLASSER. Fred P. (BJ i GILES. Janie* H.. Jr. (E l) Pennsylvania State University 1:51 Brett St.. Apt. 2 108 Mineral Sciences Bldg. Pittsburgh 5, Pa. Universitv Park. Pa. (. Honimel Co.) GLATTER. Jake (B) GILES, Raymond (W) 1043 Prospect Rd., Pittsburgh 27. Pa. 142 McKeever St., Crooksville, Ohio IWestinghouse Electric Corp.) (Crooksville China GoA GLATZ. Alfred C. (R) GILES, Thomas M. 3<i3 Merrill St., Clearfield, Pa. 1674 Berkshire Rd., Columbus, Ohio C u r tiW r ig h t Corp.) GILFILLAX, B. T. (R) G L \Z E . Franci* W. (GFI) Climax Fire Brick Co.. Climax, Pa 4111 Hamilton St., Hyattsville, Md. GILFILLAX, J. M. (W ) (National Bureau of Standards) New Jersey Porcelain Co. GLEN-GERY SHALE BRICK CORP. Box 908, Trenton 5, X. I. (`Gordon E. Lewis) GILL. John H. (R) * Box 86. Shillington, Pa. Gill Clav Pot Co., Muneie, Ind. GLENSHAW GLASS CO., INC. GILL. Joseph W. (MI) (George W. Mever) Glenshaw, Pa. (85 Van Buren St.. Des Plaines. 111. GLOBE-UNION INC. (U. S. Gypsum Co.) (J. Fletcher Harper) GILL, LaVerne X. (W I) 900 E. Keefe Ave., Milwaukee 1, Wise. American Radiator & Standard Sanitary Corp., Box 268 GLOSSBRENNER, D. I. (M) R.R. 12, Box 261, Indianapolis, Ind. Torrance, Calif. (Kaolin, Inc.) GILL. Leo L. (R) GLOSTEX CHEMICALS, INC. Harbison-Walker Refractories Co. (C. G. Wurtsbaugh) 3056 Bandini Blvd. 1800 Farmers Bank Bldg. Los Angeles 23, Calif. Pittsburgh 22, Pa. GLOWACKI, George V. (W) GILL, W. T., Jr. (S) 63 Linden Ave., Bloomfield, N. J. Texas Brick Co.. Box 510 (Radio Corp. of America) Brownwood, Texas GLYNN, T. W. (G) GILLESPIE, H. M. (M) 1505 Fairidge Dr., Kingsport, Tenn. 225 Broadway, New York 7, N. Y. (Blue Ridge Glass Corp.) GILL1ARD, Joseph W. (D) GODBOLD, Jack W. (W ) Hampton Institute 1303 Bluebird Ln., Garland, Texas Box 14. Hampton. Va. (Ferro Corp.) GILLINDER BROTHERS, INC. GODDARD, W. T. (W) (J. Fletcher Gillinder) Box 428, Hamilton, Ont.. Canada Port Jervis, N. Y. (Canadian Porcelain Co.. Ltd.) GILLINDER, J. Fletcher (G) GODEJAHX. Gordon C., Jr. (G) Gillinder Brothers, Inc. 10226 Woodworth St., Apt. 3 Port Jervis, N. Y. Inglewood. Calif. GILLOX, Paul X. (B) I Hughes Products Co.) Carborundum Co.. Library 1-2 GODFREY, T. Gordon, Jr. Niagara Falls. X. Y. Box 3434. Clemson College Sta. GILLULY. William F. (G) Clemson. S. C. Pittsburgh-Coming Corp. GODOY, E. A., & CO., INC. Box 72. Sedalia, Mo. (Emilio A. Godoy) 25 Broadway GILTXER. Benedict C. (S) New York 4, X. Y. Foley & Grove, Bensenville, 111. GODOY. Emilio A. (R) (Lindberg Engineering Co.) E. A. Godoy & Co., Inc., 25 Broadway GIMSOX, Joseph F. New York 4, X. Y. Worcester Royal Porcelain Co., Ltd. GOETCHIUS. Don R. (E F) Royal Porcelain Works Ferro Corp. Worcester, England 4150 E. 56th St., Cleveland, Ohio GIXGOLD, Jacob GOIX. Fred L. (SI) 6 rue de Fontenay, Plessis-Robinson Gladding, McBean & Co., Paris. Seine, France Lincoln, Calif. GIRALDEZ, Emilio Ceramica Xacional C. A. Box A-10, Riobamba, Ecuador GIRARD. R. T. (E.) General Electric Co. Bldg. 25S. 2nd FI. One River Rd.. Schenectady. X. Y. GITTER. Alice Josephine (M FI) 39 W. 70th. New York 23, X. Y (Whittaker. Clark & Daniels. Inc.) GITZEX. Walter H. (R) 1 Wesley Dr., Belleville, 111. (Aluminum Co. of America) OLABAU. Ernest R. (G) 2" College Rd.. Burlington, Mass. (Ravtheon Manufacturing Co.) GLADDING, Albert C. (S) Gladding Bros. Mfg. Co. Third & Keyes St., San Jose, Calif. GOLDING-KEENE CO. ( H. B. DuBois) Box 456, Keene. X. II. GOLDSMITH, Julian R. (B) University of Chicago Dept, of Geologv. Chicago 37, III. GOLDSTETX. Marcy B. (SJ) 6 Glenfair Rd., Fair Lawn, X. J. (United States Army Chemical Corps.) GOLDSTEIN, Martin (G) Mellon Institute. Pittsburgh 13. Pa. GOLIBER, Edward W. (B) 2602 X. Connecticut, Royal Oak, Mich. (General Electric Co.) GOMEZ, Salvador Odriozola (R) Fabrica de Ladrillos Industriales y Refractarios. S. A., Apartado 390 Monterrey, X. L., Mexico GONDER, Lawton (W) Gonder Ceramic Arts, Inc. Box 448. Zanesville, Ohio GLADDING, McBEAN & CO. GONZALES, Narciso (M) (S. V. Saginor) 2901 Los Feliz Blvd. Eagle Pencil Co. Los Angeles 39, Calif. 710 E. 14th St., New York 9,'N. Y. GLADNEY, Kurt (G) GOODFELLOW. Ted M. (W) Fiberglas Canada Ltd., Box H Tektronix, Inc. Sarnia. Ont , Canada P>\ S3! Portland 7. Ore. R ostkk A OODHUE, R. K. (M) Stauffer Chemical Co. 326 S. Main St., Akron 8, Ohio OODMAN, Gilbert (B) General Electric Research Lab. Box 108S, Schenectady, N. Y. OODMAN, James S. (E) ^ H ^ r ic a n Radiator & Standard ^ ^ ^ H a ry Corp., 834 E. Broadway ^M msville 4, Ky. OODMAN. Philip (G) Corning Glass Works, Corning, N. Y. OODR1CH, Robert R. (W FI) 1622 Santa .Barbara Ave. Glendale 8, Calif. (Gladding. McBean & Co l OODW IN, Robert L. (S) R. R. 2, Box 106, Minerai Wells, Texas (Minerai Wells Clay Products, Inc.l ,OODWIN, William Jarrard (B) 3464 Wallace Dr., Grand Island, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) iORDON, Irwin (W) RCA Laboratories Div. Princeton, N. J. iORMLY, Maurice W. (W) 7330 Miami Hills Dr. Cincinnati 43, Ohio (Cincinnati Milling Products Div., Cincinnati Milling Machine Co.) iORNALL, Henry A. (M I) 4357 Ardmore Rd., S. Euclid Cleveland 21, Ohio (Allied Engr. Div., Ferro Corp.) j ORSUCH, Charles A. (M) Ayers Mineral Co., 806 Market St. Zanesville, Ohio JORT, Walter A. (W) Twin Bay Village Boltop Landing, N. Y. (Arnhold Ceramics, Inc.) j OSS, Bruce R. . 11 HHaamilton St., Weedsport, N. Y. SOSZ&TTOONYI, George J k adur, Av. Mayo 981 nos Aires, Argentina , Mrs. B. D. A. L. Curtis & Co., W estmoor W orks London Rd. Chatteris, Cambs. England j OUDGE, Monson F. (M) Mines Branch, 40 Lydia St. Ottawa, Ont., Canada (Dept. Mines & Technical Surveys) GOULD, Anita H. (GJ) 320 E. Eighth Ave., .Tarentum, Pa. (Pittsburgh Plate Glass Co.) GOULD, Robert E. (W FI) 86 Cook Rd., East Aurora, N. Y. (Buffalo China, Inc.) GOWER, Irving W. (R) 516 W. Boulevard, Mexico, Mo. (Mexico Refractories Co.) GRABE, William F. (S) Grabe Brick Co. Box 5631, Tucson, Ariz. GRACE, Holt B. (S) Isenhour Brick & Tile Co. Box 1249, Salisbury, N. C. GRAFF, James B. (S) Graff-Kittanning Clay Prods. Co. Worthington, Pa. GRAFF-KITTANNING CLAY PRODUCTS CO. (James B. Graff) Worthington, Pa. GRAFF, William A. (G) Glass Technology Lab. General Electric Co. _ 1133 E. 152nd St., Cleveland 10, Ohio GRAHAM, Harold A. (B) ^^U 69 W. McKinley. Sunnyvale, Calif. ^ ^ ^ B |lv a n ia Electric Products, Inc.) Henry C. ^ i o N. Erie St., Mayville, N. Y. GRAHAM, John Warren (R) 843 Cascade Rd.. Cincinnati 40, Ohio (General Electric Co.) V'OL. :j(i. N o . 10 (U l.)7) GRANT, John F. tR I) G RIFFITH, Lawrence O., Jr. (G> Box 262, Corning, N. Y. 2514 Highland Ave., Sedalia, Mo. (Corning Glass Works) (Pittsburgh-Com ing Corp.) GRAUER. Oscar H. (G) GRIFFITHS, Norman Fischer & Porter Co., Hatboro, Pa. Nonporite Ptv. Ltd. GRAVES, George A., Jr. 292-296 Burwood Rd. Box 787, Alfred, N. Y. Hawthorn E 2. Victoria, Australia GRAY, Thomas J. (B) GRIGG. Arthur (R) Box 814, Alfred, N. Y. Box 606. Canon City. Colo. (State University of New York, (Freeman Fire Brick Co.) College of Ceramics) GRAY, W. Ashley, Jr. (X) Pioneer Silica Products Co. 3615 Olive St., St.` Louis 8, Mo. GRAY, William T. (G) Leeds & Northrup Co. 4901 Stenton Ave., Philadelphia 44, Pa GREAT LAKES FOUNDRY SAND CO. (C. L. Cruikshank) 720 United Artists Bldg. Detroit 26, Mich. GREEN, A. P., F IR E BRICK CO. (William S. Lowe) 1018 E. Breckenridge St., Mexico. Mo. GREEN, A. T. (F) British Ceramic Research Assn. Queen's Rd., Penkhull Stoke-on-Trent, England GREEN, Daniel K. Box 787, Alfred. N. Y. GRIGG, Paul E. (E l) 338 N. Dover Ave., La Grange Park, 111. (Association of American Railroads) GRIM, Ralph E. (X) Dept, of Geology, Univ. of Illinois Urbana, 111. GROBB. F. S. (Rt G. F, Sterne & Sons, Ltd. 126 Bruce St.. Brantford, Ont., Canada GROOMF,, Garland L. (R) 931 Jeffrey St., Baltimore 25, Md. (Harbison-Walker Refractories Co.) GROSS. Harold I. (Mi Santa Anita Potteries 3117 San Fernando Rd. Los Angeles 65, Calif. GROTHAUS. Joseph V. (R) 2552 E. 76th St., Chicago 49, 111. (John Mohr & Sons) GREEN, D. T. (S) GROVE, Robert L. (W I) Milton Brick Co., Ltd., Box 554 26 Rockland St. Milton, Ont., Canada South Dartmouth, Mass. GREEN, John R. (MI) (Comell-Dubilier Elec. Corp.) Minneapolis-Honeywell Reg. Co. GRNER, Max N. (R) Wayne & Windrim Aves. Harbison-Walker Refractories Co. Philadelphia 44, Pa. 1325 Ambassador Bldg., St. Louis 1, Mo. GREEN, Robert L. (W) Lenox, Inc., Meade St. GRUVER, Robert M. (G) 1160 Oneida St., State College, Pa. Trenton, N. J. GREEN, R. S. (BI) 18 S. Jefferson Rd., Mexico, Mo. (A. P. Green Fire Brick Co.) GREENE, Charles F. (S) Burns Brick Co., Macon, Ga. GREENE, Charles H. (GF) Box 804, Alfred, N. Y. (State University of New York, College of Ceramics) GREENE, J. F. (GF) 1043 New Pear, Vineland, N. J. (Kimble Glass Co.) GREENHOUSE, Harold M. (B) Aladdin Radio Industries Nashville 2, Tenn. GREENLEE, Charles A. (R) Basic, Inc. (Linden Labs., Inc.) GSCHWIND, Jean F. (M) J. O. Ross Engineering Corp. 44 Madison Ave., New Y'ork 22. N. Y. GUERCI, Carl F. (W) 1444 Westgate Dr., Bethlehem, Pa. (International Business Machines) GUGELER, Albert L. (EJ) 3897 W. 33rd St., Cleveland 9, Ohio (Ferro Corp.) GUIMARAES, Helio Pentagna Caixa Postal 208 Belo Horizonte-MG, Brazil (Magnesita S. A.) GULDEN, Jules R. (D) Syracuse China Co., Syracuse 1, N. YT. GUL1CK, Chester (M) 845 Hanna Bldg., Cleveland 15, Ohio GREENW OOD, Richard W. (W) Kentucky-Tennessee Clay Co., Inc. Mayfield, Ky. Generat Electric Co. GUNTHER, F. W. (S) 1811 LeMovne Ave., Syracuse, N. Y. 849 Baker Ave., N. W. GREGER. Herbert H. (W) New Philadelphia, Ohio Trans-Tech., Inc. (Universal Sewer Pipe Corp.) Box 103, Rockville. Md. GUNZENHAUSER, Adolph (M) GREGO. Peter (G) 22 Roosevelt St., Corning, N. Y'. (Corning Glass Works) 69-70 113th St. Forest Hills 75, L. L, N. Y. (Transisola, Inc.) GREGORIUS, J. S. (GFI) GUPTA, Subodh C. (G) Pittsburgh Plate Glass Co. Box 101, Port Jervis, N. Y. One Gatewav Center, Pittsburgh 22, Pa. (Gillinder Bros., Inc.) GRENIER, Lee (S) Magnet Cove Barium Corp., Box 832 GURR, Wilhelm Porzellan-Manufaktur W. Haldenwanger Greybull, Wvo. GRESHAM, Lucius C,, Jr. (S) Acme Brick Co.. Box 308 Waskom, Texas GRETHER, Charles M. (W) D. M. Steward Manufacturing Co. E. 36th St., Chattanooga, Tenn. GREWER. Douglas (M) Harry W. Smith. Inc. Berlin-Spandau Heerstr. 221, Westsektor, Germany GUSTAFSON, Carl H., Jr. (R) 47 Montana Dr., Holden, Mass. (Norton Co.) GUTHRIE, George B. (W) 642 Louisiana Ave., Chester, W. Va. (Hall China Co.) 41 E. 42nd St., New York 17, N. Y'. GUZMAN, Hector (G) GRIFFIN, Thomas W. 2944 Kendale Ave., Apt. 103 "La Feuille1' Trlex Toledo, Ohio Vaud, Switzerland ( Owens-Illinois) (H artford Empire Div., GWYN. James D. (G) Emhart Mfg. Co.) Libbey-Owens-Ford Glass Co. GRIFFITH, J. Scott (R) 1701 . Broadway, Toledo 5, Ohio 5524 W. Adams St.. Chicago 44, 111. GYWE, Mg Lu (Armour Research Foundation) Box 216, Alfred. N. Y\ R oster 4!> H tCK, Walter L. (W) Western Gold & Platinum Co. 525 Harbor Blvd., Belmont, Calif. \CK ETT, James W. (G) 3614 Kenwood Blvd., Toledo 6, Ohio ns-Illinois) IR, W. C. (B l) Carolina State College Dept, of Mineral Industries Raleigh, N. C. ADLEY, Robert L. (E) General Electric Co. Major Appliance Div., AP 5, Rm. 249 Appliance Pk., Louisville 1, Ky. AECKER, Arthur J., Jr. (R) 1793 Sharon Dr., Concord, Calif. (Gladding, McBean & Co.) AEGER POTTERIES, INC. (Joseph F. Estes) 7 Maiden Lane Dundee, III. AERTLIXG, Gene H. (W JI) 1016 16th St., Rockford, 111. (Ipsen Ceramics. Inc.) IAFNER, Harold C. (G) Bausch & Lomb Optical Co. Chemical Research Lab. Rochester 2, N. Y. IAFNER, Robert H., Jr. (E) 175 N, Linden Rd., Mansfield, Ohio (Ingersoll-Humphryes Div., Borg W arner Corp.) IAGAN, M. A. (M I) 5410 Sycamore St. Kansas City 29, Mo. (Westinghouse Electric Corp.) HAGAR, Donald (M FI) Box 328, Zanesville, Ohio (Donald Hagar Ceramic Materials) HAGBERG, Carl E. (M) - Kentucky-Tennessee Clay Co., Inc. . Box 894, Mt. Union Sta. Alliance, Ohio HAGEDORN, A. J. E. (R) Serai Abrasive Co., Inc. wer D, Bridge Sta. gara Falls, N. Y. IORN, E. C. (G) Owens-Illinois, Technical Center 1700 N. Westwood, Toledo 7, Ohio HAGENAUER, Carl J. (G) R.R. 1, Sarver, Pa. (Pittstmrgh Plate Glass Co.) HAGGLUND, Erik (M) Kanthal Corp., Amelia PI. Stamford, Conn. HAGLER, J. C., Jr. (S) Georgia-Carolina Brick & Tile Co. 10 Campbell Bldg., Augusta, Ga. HAGNER. Fred F. (G) Phoenix Glass Co., Monaca, Pa. HAGY, Henry E. (G) Corning Glass Works Laboratory Corning, N. Y. Ha h n , William P. (G) 80 Norwood Ave. North Plainfield, N. J. (Johns-Manville Corp.) HAHNER, Clarence H. (GF) National Bureau of Standards Washington 25, D. C. HALDEX. Frank A. (B) 1049 Valley Forge Dr. Sunnyvale, Calif. (Stanford Research Institute) HALDY, Norman L. (\V) American Encaustic Tiling Co. 1000 Cannon Ave., Lansdale, Pa. h a l e y , Dwight (R) American Clay Forming Co. Box 686, Tyler, Texas , Charles A. R. 3. Bloomington, 111. CHINA CO. (John T. Hall) st Liverpool, Ohio HVaOLl.l3, 0D. oNnaold. H10. ((E.1J0)07) Pfaudler Co. 1000 West Ave.. Rochester 3, N. Y. HALL, Douglas E. 2840 X. Calvert St., Baltimore 18, Md. HALL, E. B. M 'S Bird & Co. Ltd., Research Dept. Chartered Bank Bldgs. Calcutta, India HALL, Everson (W ) m Park Wav Ext., East Liverpool, Ohio (Hall China Co.) HALL, F. P. (VVF) Onondaga Pottery Co., Electronic Div. Syracuse 1, X. Y. HALL. James L. (W ) 242 Oregon Ave., Palo Alto, Calif, fThermo-Materials Inc.) HALL, John T. (W) Hall China Co., East Liverpool, Ohio HALL, Morris P. (S) Alton Brick Co., Box 35 Maryland Heights, Mo. HALL. Robert L. 124 Jersey Lane. CVmson. S. C. HALL, Warren A. (Si Xorth State Pyropli>llite Co., Inc. Box 7247, Greensboro. X. C. HALLBERG, Richard C. (W) 236 Watson Ave., Fostoria, Ohio (Electric Auto-Lite Co., Spark Plug Div.) HALLER, Percy 319 Carterknowle Rd., Sheffield 11, England (John G. Stein & Co., Ltd.) HALLER, Wolfgang K. (B) Inst, of Silicate Research University of Toledo, Toledo 6, Ohio HALLETT, Crawford W. (RI) Shenango China, Inc. Box 120, Xew Castle, Pa. HALLOIN', William G. (G) 1218 Broadview Blvd. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) HALLSE. Robert L. (BJ) L'niversity of Illinois Dept, of Ceramic Engineering L'rbana, 111. HALM, Louise Union Franaise des Produits Rfractaires, 15, Rue de Milan Paris 9e, France HALVOXIK, Frank V. (G) Box 2, Xewry, Pa. (D. M. Bare Co.) HAMAKER. M. L. (R) Columbia Fire Brick Co. 612 First Xational Bank Bldg. Canton 2, Ohio HAMER. Donald (W) 426 Elmwood, Evanston, 111. (Radio Kemetal Industries) HAMILTON', Edgar H. (GI) Xational Bureau of Standards Glass Section, W ashington 25, D. C. HAMILTON, Howard G. 251 Tenth St. N. W., Apt. 104 Atlanta, Ga. HAMILTON. J. C. (G) 3422 Chestnut Hill Rd., Toledo 6, Ohio fOwens-Illinois) HAMILTON. Noble E. (M) 53 Benjamin Rd., Belmont 78, Mass. I Consultant) HAMILTON, Robert (M) United States Gypsum Co. 300 W. Adams St., Chicago 6, 111. HAMILTON, W. M. (E) Crane Co., Chattanooga Div. 33rd and Alton Park Blvd. Chattanooga 1, Tenn. HAMME, Donald G. (B) National Gypsum Co., Research Center 1650 Military Rd., Buffalo 17, N. Y. HAMMER, Averill J. (S) 136 Buttonwood Ave. Bowling Green, Ohio (Bowling Green State University) HAMMER. Gunter 246, Connell's Pt. Rd. South Hurstville. X. S. W., Australia i Messrs. R. Fowler Ltd.) HAMMER, R. (I) Box 5212, Haifa, Israel i Palceramic Ltd.) HAMMOND, Beatrice L. (R) Technical Research Group 17 Union Square. W. Xew York 3, X. Y. HAMMOND LEAD PRODUCTS, INC. (William P. Wilke, 111) 5231 Hohman Ave., Box 912 Hammond, Ind. HAMPEL. Richard 1. (WJ) 774 Dallas Ave. San Bernardino. Calif, i Crane-Pacific Co.) HANCOCK BRICK & T IL E CO. (James L. Child, Jr.) Box 450 Findlay, Ohio HAND. Thomas (R) Corhart Refractories Co. 1600 W. Lee St., Louisville 10, Kv. HANDEN, Jack (BJ) ' 20 Elmora Ave.. Elizabeth, N. J. (Radio Corp. of America) HANDWERK, Joseph H. (B) 915 N. Prairie Ave., Joliet, 111. (Argonne National Laboratory) HANKINS. William E,, Jr. (S) Dalton Brick & Tile Corp. Box 223, Dalton, Ga. HANKS, Charles F,, Jr. (M) Kentucky-Tennessee Clay Co., Inc. Box 894, Mt. Union Sta. Alliance, Ohio HANLEY CO. (John M. Dickey, Jr.) Summerville, Pa. HANX, Douglas G. Ryton House Shifnal, Shropshire, England (British Heat Resisting Glass Co.) HANNA, H. H. (GI) 303 Bailey Rd., Crystal City, Mo. (Pittsburgh Plate Glass Co.) HANNA, Ralph E. (W I) Square D Co., Molded Insulation Div. Peru, Ind. HANNA, Richard (W J) Hartford, N. Y. (General Electric Co.) HAN NEMAN, Morton E. (G) Elmore, Ohio (Woodville Lime Products Co.) HANNON, Richard C. (M I) 1208 Franklin Rd., Salem, Ohio (R. T. Vanderbilt Co., Inc.) HANOVIA CHEMICAL & MFG. CO. (R. T. Hopper) One W. Central Ave. East Newark. X. J. HANSARD, W. Carey (W I) 2345 Cheshire Bridge Rd., N. E. Atlanta, Ga. (Georgia Institute of Technology) HANSELL, U. G. (W) Honeywell Research Center 500 Washington Ave., S. Hopkins, Minn. HANSEN, I. A. (W) Fords Porcelain Works Perth Amboy, N. J. HANSEN, J. E. iE F I) Ferro Corp., 5309 S. District Blvd Los Angeles 22, Calif. HANSEN, John H. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio HANSEN, Kenneth H. (M) 507 Edgewood Ave., Columbia, Mo. (Consolidated Feldspar Dept., International Minerals & Chemical Corp.) HANSEN, Kent W. 165 E. Second, S., Bountiful, Utah HANSEN, Melvin O. (G) Owens-Illinois. Libbey Div. Box 919. Toledo 1, Ohio R o st e r -15 \N S E N , Waldemar C. (R) Universal Atlas Cement Co. Gary (Buffington Station), Ind. \N SO N , Hans R. (R) 30004 W. Ten Mile Rd. Farmington, R.R., Mich. (Hanson Co.) \N Q X , James \V. (S) tal Wells Clay Products, Inc. _____Jidgehill Rd., Fort W orth, Texas \IW BKT, Carl J. (W) Harshaw Chemical Co., 1945 E. 97th St. Cleveland 6, Ohio \R B IX , Hugh P. 134 Jersey Ln., Clemson, S. C. ARBISON-W ALKER REFRACTORIES CO. (C. A. Brashares) 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. ARCOURT, Edward L. (M) North American Mfg. Co. 3810 West St., Cincinnati 27, Ohio ARDER. Charles M. (DF) State University of New York College of Ceramics, Alfred, N. Y. ARD1XG, John Roy "Greystoke," Chesworth Close Horsham, Sussex, England (Sussex & Dorking United Brick Co., Ltd.) ARDINGE CO., INC. (Harlowe Hardinge) York, Pa. ARDINGE, Harlowe (M) Hardinge Co., Inc., York, Pa. ARDY, Ronald G. (SI) .. Onondaga Brick Corp., Warners, N. Y. ARES, George B. (G) 15 Roosevelt St., Corning, N. Y. (Corning Glass Works) ARGREAVES, John 33 Ellers Ave. Bessacarr, Doncaster, England (United Steel Co., Ltd.) ARGREAVES MILL LTD. ^ ^ ^ W . Cook) Botteslow St. ^ ^ H r y , Stoke-on-Trent, England A I P POTTERY CO. ^Robert E. Boyce) East Liverpool, Ohio ARMAN, C. G. (W F) Horizons, Inc., 2891 E. 79th St. Cleveland 4, Ohio ARMOXY, M. E. (G) Silicones Div., Union Carbide Corp. 644 Oliver Bldg., Mellon Square Pittsburgh 22, Pa. ARNISH, John D,, Jr. (W I) Westinghouse Electric'Corp. Derry, Pa. ARNISH, Mark E. (R) 2111 Sierra Rd. Plymouth Meeting, Pa. (E. J. Lavino & Co.) ARPER, J. Fletcher (W) Globe-Union Inc., 900 E. Keefe Ave Milwaukee 1, Wise. 1ARPER, Roderick L. (M) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. LARPER, Wallace T. (B) Box 526, Acworth, Ga. (Lockheed Aircraft Corp.) fARR, W. J. (GI) 1711 Brainard Rd. Lyndhurst, Cleveland 24, Ohio (Harshaiv Chemical Co.) '.ARRELL, George O. (S) North Carolina State College Mineral Industries Dept. Raleigh. N. C. ARRINGTON, Roy V. (G) One Oakwood Dr., Corning, N. Y. ^ a rn in g Glass Works) CLAY CO. ^ j ^ r o o p W. Enloe, Jr.) Spruce Pine, N. C. ' ARRIS. Donald M. Fairport Rd., East Rochester, N. Yr. OL. ;j(i. N o. 10 (,1907) HARRIS, Henry M. (R) 4114 42nd S., Seattle 18, Wash. (U. S. Bureau of Mines) HARRIS, James E. (S) 4&S5 S. Sherman, Denver, Colo. (Robinson Brick & Tile Co.) HARRIS. Jesse R. - 301 E. Third Ave., Ritzville, Wash. HARRIS, Joe X. (EJ) 1175 Fayetteville Rd., S. E. Atlanta 16. Ga. (Georgia Institute of Technology) HARRIS, Ransom S,, Sr. (GJI) 124 Brooks Ave., Raleigh, X. C. (U. S. Army) HARRISON'. Don E. (B) 1599S Xelacrest Rd., Apt. 9 Cleveland 12, Ohio IGeneral Electric Co.) HARRISON, Harold C. (W) 4545 Norwin Rd.. Pittsburgh 36. Pa. (Westinghouse Electric Corp.) HARRISON. Jack L. (S) Indiana Geological Survey Indiana University, Bloomington, Ind. HARRISON. William B. (BI) 2635 X. 68th St., Wauwatosa 13, Wise. (Allis-Chalmers Mfg. Co.) HARRISON, W. N. (EF) National Bureau of Standards Ind. Bldg., Enameled Metals Sect. Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. HARSHAW CHEMICAL CO. (Carl Harbert) 1945 E. 97th St., Cleveland 6, Ohio HART, John M. (M) New Jersey Porcelain Co., Box 908 Trenton 5, N. J. HART, Leroy D. (R) 707 Crompton Court Webster Groves 19, Mo. (Aluminum Co. of America) HART, Wade J. (GI) 908 Lafayette Court, Marion, Ind. (Radio Corp. of America) * HARTFORD, Thomas J. (W) 2783 Doresta Rd., San Marino, Calif. (Gladding, McBean & Co.) HARTLEY, Alva G. H. Downing & Co. Ltd. Brampton Hill Newcastle, Staffs, England HARTMAN, F. Henry (G) Stouffville, Ont., Canada (Crystal Glass & Plastics Ltd.) HARTSHORN, T. D. (E l) A. J. Lindemann & Hoverson Co. 601 W. Cleveland Ave. Milwaukee 15, Wise. HARTWIG, Frederick J., Jr. (RI) Babcock & Wilcox Co., Box 835 Alliance, Ohio HARVEY, A. M., Jr. (S) Roanoke-Webster Brick Co., Box 780 Roanoke 5, Va. HARVEY, Edwin T. (R) 314 W. McPike St., Vandalia, Mo. (Harbison-Walker Refractories Co.) HARVEY, E. M. (R) North State Pyrophyllite Co., Inc. Box 7247, Greensboro, N. C. HARVEY, Malcolm R. 80 E. Center St., Kaysville, Utah HASKO, Stephen (WT) 1510 Wheaton Lane, Silver Spring, Md. (National Bureau of Standards) HASSELBACH, William (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio HASSETT, William A. (W) Radio Corp. of America Chemical & Physical Lab. 415 S. Fifth St., Harrison, N. J. HASTINGS, Russell A. (M) Lindberg Industrial Corp. 2321 W. Hubbard St., Chicago 12, III. HATCH, Robert A. (B) 4135 X. Belleview Ave. St. Paul 10, Minn. (Minnesota Mining & Mfg. Co.) HATHAWAY, A. J. (R) 8721 Pershing Ave. Niagara Falls, N. Y. (Titanium Alloy Mfg. Div., ' National Lead Co.) HATHAWAY, Isaac S. (W) 1318 Tuttle Ave., Montgomery, Ala. (Alabama State College) HATHAWAY, Mrs U. G. (W) Alabama State College Montgomery, Ala. HAUBE1N. Wendell L. (RJ) 309-A Monterey, China Lake, Calif. (U. S. Naval Ordnance Test Sta.) HAUCK. Charles A. (RI) 8838 Swinton Ave., Sepulveda, Calif. (Marquardt Aircraft Co.) HAL'RA. Bruce 223 Tom Hunter Rd., Fort Lee, N. J. HAUSER, Richard E. (I) 351 Moselle St., Buffalo 11, N. Y. HAUSLER, Elwood B. Box 787, Alfred, N. Y. HAUTH, Willard E,, Jr. (B) 409 Warminster, Hatboro, Pa. (International Resistance Co.) HAVEKOTTE, Walter L. (R) Firth Sterling, Inc. Demmler Rd., McKeesport, Pa. HAVELL, Richard F. (R) 846 N. Euclid Ave., Oak Park, 111. (Eagle Grinding Wheel Co.) HAVENS, Irvin F. (B) 200 St. Nicholas Ave. Worcester, Mass. (Bav State Abrasive Products Co.) HAWES, Samuel A. (S) 301 N. E. Sixth Ave. Mineral Wells, Texas (Texeramics Co.) HAWK, Elwin A. (M) Hawk Laboratories, Inc., R.R. 1 East Rochester, Ohio HAWKINS, Robert J. (SI) 20 Sunnyside PL, Hamburg, N. Y. (Buffalo Brick Corp.) HAWKS. Ralph L. (W I) 525 W. Maxwell, Lakeland, Fla. (Florida Tile Industries, Inc.) HAWKS, William L. (R) 1914 N. E. 47th Ave., Portland 13, Ore. (Collett Bros., Inc.) HAWS REFRACTORIES CO. (E. E. Slick, Jr.) 407 Main St. Johnstown, Pa. HAY, John (B) Norton Co., Research Lab. Worcester 6, Mass. HAY, Joseph L. (R) Acme Brick Co., Box 448 Malvern, Ark. HAYDON, Mary P. (B) 106 Ogontz Lane, Oak Ridge, Tenn. (Oak Ridge National Laboratory) HAZEL, John J. (RF) Republic Bldg., Rm. 1526 Republic Steel Corp., Cleveland 1, Ohio HAZEN, E. J. (GI) R.R. 2, Ford City, Pa. (Pittsburgh Plate Glass Co.) HEALY, James H. (E) 4511 N. Sherman Blvd. Milwaukee 9, Wise. (A. O. Smith Corp.) HEATH, Donald L. (B) Ohio Brass Co., Park & Ninth Barberton, Ohio HEATLEY, Sidney M. (R) Babcock & Wilcox Co. 105 S. LaSalle St., Chicago 3, 111. HEAVILL, John C. (E) 42 Walnut St., Pittsburgh 5, Pa. (Vitro Manufacturing Co.) HECK, Frank G. (R) E. J. Lavino & Co., 3 Penn Center Plaza Philadelphia 2, Pa. R o ster 47 X L. James V. (RI) 3 Decatur St., China Lake, Calif. S. Naval Ordnance Test Sta.) IN, Walter A. (R) telle Memorial Institute King Ave., Columbus 1, Ohio IS Lee M. (R) *. 4 ,O d a r Grove Rd. uA n . j . h tj^^H ville Corp.) E S ^iw iip E. v 122. Alfred. N. V. PETH, James A. (S) rden Brick & Tile Co., Box 1771 irham, N. C. L IST , Alfred J. (W ) lartado Postal 525 ladalajara, Jalisco, Mexico oza Kina S. A.) NER. John C. (R I) 31 Korbe St. rth Tonawanda. N. V `arbnrundum Co.) 1, Franz jrcher Ziegeleien, Postfach 357 rich 1. Switzerland TM AN, Clarence F. (G) ational Lime & Stone Co. ir National Bank Bldg, indlay, Ohio TCH. Raymond P. (S) 55 Stelzer Rd. ox 214, Columbus 19, Ohio Claycraft Co.) -IGMAN, H. A. (R FI) L J. Lavino & Co., Box 29 'lorristown, Pa. . 1SOETH, Werner M. Farbenfabriken Bayer Vktiengesellschaft ,22c) Leverkusen-Bayerwerk, Germany >iDL, Raymond A. (RF) 4917 43rd St-, N. W. Washington 16, D. C. NE, H. W. (S) Hudson Supply & Equipment Co. nsylvania Ave., N. W. on 6, D. C. 'I, Fred E. (W ) 106 S. Adams St., Fostoria, Ohio (Electric Auto-Lite Co.) X E R , Enrique e/c Cerro de Pasco Corp. La Oroya, Peru -LIESEN, Richard O. (E l) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. LLMAN. N\, III (W) B. G. Corp. . 321 Broad Ave., Ridgefield, N. J. LM, David F. (B) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. LM KAMPF, R. N. (R) Oswald Refractories Co. 1617 S. Brentwood Blvd. St. Louis 17, Mo. LSER. Perry D. (W FI) 110 Maryland Ave., N. E., Apt. 211 W ashington 2, D. C. (U. S. Dept, of the Interior) X Z, Armin W. (B) 20 Maryland Ave., Gaithersburg, Md. (U. S. Geological Survey) MBERG. Per Surte Glasswork, Surte, Sweden 'M PH IL L . R. W., Jr. (W) Colonial Insulator Co. 945 Grant St., Akron 11. Ohio MSTEGER. Samuel E. (E l) 4155 Audubon Rd., Detroit 24. Mich. (Consulting Engineer) EXDERSON, Frank P. (M) 512 Mockingbird Ln., Tyler, Texas o Corp., Allied Engr. Div.) ISON, Frederick C. (WFT) China, Inc., Sebring, Ohio EXDERSON. James L., Jr. (M) Robinson Ventilating Co. Zelienople, Pa. OL. No. 10 (1957) HENDERSON, William W. (M) Robinson Ventilating Co., Box 217 Zelienople, Pa. HENDREN, Robert R. (RI) 105 Bank Ave., Riverton, N. J. (Hoeganaes Sponge Iron Corp.) I1ENDRVX, Dwight B. (S) Dwight B. Hendryx & Associates 6621 Darlington Rd., Pittsburgh 17, Pa. HENKEL, Carl F., Jr. (G) Corning Glass Works, Corning, X. Y. HENRY, Edward C. (BFI) 730 Crawford Ave., Syracuse 10, N. Y. (General Electric Co.) HENRY, Frank R. (RF) . . Simonds Worden White Co. 1101 Negley PI., Dayton 7, Ohio HENRY, Georges Lnion de Verreries Mcaniques Belges. 2(>. (Jnai de Brabant Charlerui. Hainaut. Belgium HENRY. Kenneth M. (GF) <)\\en-Hlitiois . Bn\ HU5. Toledo L Ohio HENSLER, J. R. (G) Chemical Research Lab. Bausch & Lomb Optical Co. Rochester 2, N. Y. HENSON, Charles W. (R) Norton Co.. Worcester 6, Mass. HENWOOD, Reginald J. (R) ' 9444 Lynnhaven Rd. Cleveland 30, Ohio (Republic Steel Corp.) ITEPPLEWHITE, J. W. (W FI) 13557 Cedar Rd., Cleveland 18, Ohio (Ferro Corp.) HERBERT, John S. (S) W. G. Bush & Co., 174 Third Ave., N. Nashville 3. Tenn. HERBERT. John W. (R) 3523 Anderson Pky., Toledo. Ohio (Libhev-Owens-Ford Glass Co.) HERBERT, Paul R. (W) Sandyville, Ohio (Stvlon Corp.) HERBST, Richard J. 1619 Glenwood Ave.. Joliet, 111. HERGER. Howard C. (G) Pierce Glass Co.. Port Allegany, Pa HERKO. Edward (Gl) 392 Magee Ave.. Rochester 13, N. Y. (Bausch & Lomb Optical Co.) HERMANN. Gunter Rua Nacaia 51 (V. Mariana) Sao Paulo, Brazil (Wheaton do Brasil S. A.) HERMANN, James L. (W) 3288 Earlmar Dr. Los Angeles 64, Calif. (Redondo Tile Co.) HEROLD, Paul G. (BFI) Radio Corp. of America Chemical & Physical Lab. Lancaster. Pa. HERRING. Leon B. 255 " D" St.. Clemson, S. C. HERRON. Robert H. (R) 54310 Tronwood, South Bend 15. Ind. (Bendix Products Div.) HESS. Albert J. (B) Milwhite Co., Ine. Box 238. Brvant. Ark. HESS. B. Parker (G) Westinghouse Electric Corp. 700 Braddock Ave., East Pittsburgh, Pa. HESS, F. B. (G) Brockway Glass Co., Ine. Brockway, Pa. HESS. Robert L. (R) 44 Hess Blvd., Lancaster, Pa. ( Armstrong Cork Co.) RESSINGER. Philip S. (BI) Mycalex Corp. of America Clifton Blvd., Clifton, N. J. HEUER, Russell P. (RF) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. HEW ITT, L. C. (RFI) Ironton Fire Brick Co., Tronton, Ohio HEWLETT, James Thomas {jzj Ingram-Richardson, Inc. Krankfort, lud. HICKEY. Frank J. (G ) Corning Glass Work Box 544, Corning. X. Y. HICKS, James C. (BI) 27550 Edgerton Rd., Los Alto, Calif. (Kaiser Aluminum & Chemical Corp.) HICKS, John F. G. (G) ^^ 131 Thompson Dr., Painted Post, N. \ . (Corning Glass Works) HIGGINS, Ray (W) 191 Overlook Ave., Wadsworth. Ohio (Ohio Brass Co.) HIGGINS, Waldo W. (E FI) A. O. Smith Corp. Box 584, Milwaukee 1, Wise. HIGGS, Harold P. (B) Automatic Manufacturing Co. 65 Gouverneur St., Newark 4, X. J. H1GHLKY, Robert W. (R) Richard C. Remmey Son Co. JS82 W. Liberty Ave. Pittsburgh 16, Pa. HIGMAN, JO HN W., CO. (Robert J. Stone) 24 State St. New York 4, N. Y. HILDEBRAND, David (W) R.R. 3, Hixson, Tenn. (American Lava Corp.) H ILL. David C. 84 Henrv St.. Cambridge, Mass. HILL. Erceli C. (SF) 109 Morton Ave., Apt. 5 Ridlev Park, Pa. HILL, John R. (S) 806 Scenic Dr., Charleston, W. Va. (Charleston Clay Products Co.) H ILL, Lawrence I. (G) 503 Carver Blvd., Toledo 7, Ohio ( Libbey-Owens-Ford Glass Co.) HINCKLEY, A rthur T. (R) Hooker Electrochemical Co. Buffalo Ave. & 47th St. Niagara Falls, N. Y. HIND, Stanley "The Mount," Etruria Rd. Basford, Stoke-on-Trent, England (Consulting Engineer) HINDS, J. F. (G) Canadian General Electric Co. 221 Dufferin St. Toronto 3. Ont., Canada HINES, Robert A. (B) 8729 Radley Ct., Brentwood 17, Mo. (Missouri Portland Cement Co.) HINKiNS, E. A. (G) Tygart Valley Glass Co., Box 503 Washington, Pa. HIRSSIG, Carl F. (G) 1210 Fort St., Maumee, Ohio (National Lime & Stone Co.) HISCOCK, Harley J. (R) Fuller Merriam Co., Box 69 West Haven, Conn. HITCHINS, R. A. (R) National RefractuGe Div. Mexico Refractories Co. 226 S. 16th St., Philadelphia 2. l'a. HITZEMAN, Roger L. (W I) Globe-Union Inc., 900 E. Keefe Ave. Milwaukee 1, Wise. HOAGLAND, Peter J. 3 West St., Nun da, N. Y. HOBSON, Joe P. (S) _ Acme Brick Co., Box 425 Fort Worth 2, Texas HOCH, Michael (B) University of Cincinnati Dept. Chem. & Met. Engr. Cincinnati 21, Ohio HOCKADAY. R. B. (S) General Shale Products Corp. Kingsport. Tenn. HODGDON, Frank B. (B) Box 4132, N. Chattanooga Sta. Chattanooga 5, Tenn. (Tennessee Products & Chemical Corp.) R o s t e r 49 I HODGES, Leslie R,, Jr. Box 1409, Atlanta, Ga. HOLMSTROM, Joseph H. (R l) 11211 Washburn Ave., S. HORTON, Paul B. (WI ) Insulator Dept., General Electric Co. HODSON, George X. The Hall, Wymeswold _ Nr. Loughborough, England (Hathernware, Ltd.) HODSOX, Jean T. 4203 Brooklyn, Seattle 5, Wash. HOELSCHER, Max W. (E) 5010 Mayfield Rd., Lyndhurst 24, Ohio (Enamel Products Corp.) HOEX1G, Clarence L. (RJ) 4325 Lawn Ave., Western Springs, 111. (Argonne National Lab.) Bloomington 20, Minn. (General Refractories Co.) HOLSCHER, H. H. (GF) Owens-Illinois * Box 1035, Toledo 1, Ohio HOLST, Tage Vinkelvej lo, Kongens Lyngby, Denmark (Porcelaensfabriken Danmark A/S) HOLT. J. Birch 1535 Sigma #10 Salt Lake City, Utah HOLTERHOFF, A. Gray (M) Box 57, Baltimore 3. Md. HORTON, Robert A. (Rl 452 Fort W ashington Ate. New York 33, X. Y. (Austenal, Inc.) HOSBEIN, Roger L. (R) 202 12th St., X. W., Canton. Ohio (Republic Steel Corp.) HOSSENLOPP, Arthur M. (W I) 921 Maplewood Dr.. Kokomo. Ind. (Delco Radio Div., General Motors Corp.) HOEY, Paul E. (S) Texas Vitrified Pipe Co. National Sales Corp. 307 E. Fourth St., Cincinnati 2, Ohio HOSTETTER, J. C. (GFI) 1561 Dale Ave., Winter Park, Fla. Box 117, Mineral Wells, Texas HOLTRY. Byron C. (S) (Consultant) HOFFMAN, Richard C. Henderson Clay Products HOUCHINS, Henry R. (W ) 34784 Auburndale, Livonia, Mich. Henderson, Texas Carborundum Co., Niagara Falls, N. Y. HOFFMAN, Sidney C. (G) 1646 Lindy Lane, Lexington, Ky. HOLWAY. Paul A. Box 787, Alfred, N. Y. HOUDEK, Albin (W) Box 395. Santa Anna. Texas (Sylvania Electric Products, Inc.) HOLZMAN, George R. (G) (Santa Anna Tile Co., Inc.) HOFFMAN, Willard H. J. (W) Mellon Institute, 4400 Fifth Ave 8 Dungarrie Rd., Baltimore 28, Md. Pittsburgh 13, Pa. (Clinchfield Sand & Feldspar Corp.) HOMMEL, E. M. (EF) H O U D ESH ELL, Robert J. (M) 223 W. South A St.. Gas City, Ind. (Marion Machine Foundrv, Inc.) HOFFNER, Jere R. (G) O. Hommel Co., Box 475 HOUGHTON, Amory (G) I T. C. Wheaton Co., Millville, N. J. Pittsburgh 30. Pa. H OFSTETTER, G. W. (E) HOMMEL, O., CO. (E. M. Hommel) The Knoll, Corning, N. Y. (Corning Glass Works) Ferro Corp., 336-338 N. Central Ave. Chicago 44, 111. HOGAN, Thomas W. (W) Box 475, Pittsburgh 30, Pa HOMVELD, G. H. A. Calle Cantarrana, Quinta Tucuman HOULAHAN, R. C. (S) Builders Brick Co. 3800 Ninth Ave., S., Seattle 8, Wash. Flintridge China Co. 350-380 S. Raymond Ave. Las Delicias, Maracay, Venezuela (Fabrica Nacional de Porcelana) HOUSMAN, George S. (R) Box 17, Norristown, Pa. Pasadena 1, Calif. HONSBERG. Werner OY) HOUSTON, Harry H. (B) HOGARTH, William, Jr. Box 3829, Georgia Tech., Atlanta, Ga. HOGENDOBLER, H. R. (G) Gustin-Bacon Manufacturing Co. 3031 Fiberglas Rd., Kansas City, Kans. HOGENSON, William (E) Chicago Vitreous Corp. 1425 S. 55th Court, Cicero 50, III. HOHMANN, Frederick R. (G) 1012 Parkview Ave. New Kensington, Pa. (Pittsburgh Plate Glass Co.) HOHN, Carl M. (W) 508 Eastway Dr., Lakeland, Fla. (Florida Tile Industries, Inc.) HOJALATA y LAMINA, S. A. (Geronimo Ramirez E.) Apartado Postal 996 Monterrey, N. L., Mexico HOLADY, Harold W. Box 416, Ephrata, Wash. H OLDEN , Abe N. (B) General Electric Co. Vallecitos Atomic Lab. Box 846, Pleasanton, Calif. Fabrica de Loza El Anfora, S. A. Apartado 508. Mexico D. F., Mexico HOOD, Clyde (G) Leeds & Northrup Co. 1922 E. 107th St. Cleveland 6, Ohio HOOD, Harrison P. (GF) 260 Delevan Ave.. Corning, N. Y. (Corning Glass Works) HOOD. L. Scott (M JI) Orton Ceramic Foundation 1445 Summit St.. Columbus. Ohio HOOD, Walter H. (M) International Minerals & Chemical Corp. (Canada) Ltd. 77 Metcalfe St., Ottawa. Ont., Canada HOOGENDOORN, Helen M. (E JI) 2185 Cummington Rd., Apt. 3 Cleveland 6, Ohio (Ferro Corp.) HOOKER. James K. 66 Libertv St., Bolivar, N. Y. HOOP, M. C. v. d. N. V. Royal Delft Ware Manufactory, "De Porceleyne Fles" v/h Joost Thooft & Labouchere Borg-W arner Corp. Algonquin & Wolf Rd. Des Plaines, 111'. HOUSTON, M. Dean 1745 Skyline Dr., Apt. 56 Pittsburgh 27, Pa. HOUZE, Armand L., Ir. (G) Houze Glass Corp.. Point Marion, Pa. HOWARD, Elwin (B) Mal-El Ceramics 113 Oxford Rd.. Oxford. Conn. HOWARD, Harold B. (S) 828 S. Ellis St., Salisbury, N. C. (Taylor Clay Products Co.) HOWAT, W alter L. (DF) Howat Kilns, 85 H opping Ave. Staten Island 7, N. Y. HOWATSON, John (G) University of Wyoming Chemistry Dept., Laramie, Wyo. HOWATT, Glenn (W) 11 Cliffwood Place, Metuchen, N. J. (Gulton Industries, Inc.) HOWE, Elroy E. (EFI) Chicago Vitreous Corp. 1425 S. 55th Court, Cicero 50, 111. H OLDEN , Robert B. (B) Sylvania-Corning Nuclear Corp. Bayside, N. Y. H O LD EN ER. Irwin K. (R) 5389 Bayside Dr., Dayton 3, Ohio (Wright-Patterson AFB) HOLL, Barton A. (S) Logan Clay Products Co. Box 698, Logan, Ohio HOLL, Barton S. (SI) 311 W. Front St., Logan, Ohio (Logan Clay Products Co.) HOLLEY, Kenneth E. (R) 113 Pritchard Ave., Corning, N. Y. (Corning Glass Works) HOLMES, Gregory J. (EJ) 3295 Lansmere Rd. Shaker Heights 22, Ohio (Ferro Corp.) HOLMES, Lyle A. (M) 82 Pilgrim Rd., Rosslyn Farms Carnegie, Pa. 196 Rotterdamscheweg, Delft, Holland HOOPER, Bradford (R) Babcock & Wilcox Co. Augusta, Ga. HOOTOX, Norris A. R. R. 2, New Carlisle, Ind. HOOVER. Charles H. (R) 609 Wilton Rd., Towson 4, Md (General Refractories Co ) HOPKINS. Robert W. (GI) Calumite Co., Box 151 Hamilton, Ohio HOPPER, R. T. (D) Hanovia Chemical & Mfg. Co. 1 W. Central Ave., East Newark, N. J. HORAK, William (RFI) 223 Raymond Rd. West Hartford 7, Conn. (Hartford Empire Div., Emhart Mfg. Co.) HORMBERG. R. E. (W) Misceramic Tile Box 1070, Cleveland, Miss. HOWER, Lawrence D,, Jr. (R l) - Raybestos Div., 75 E. Main St. Stratford, Conn. HOWER, R. S. (BI) Allen-Bradley Co. 136 W. Greenfield Ave. Milwaukee 4, Wise. HOW IE, Thomas W. Campbell & Co. (Roughcastle) Ltd. Roughcastle Works, Falkirk, Scotland HOYET, Eugene (G) R. R. 4, Box 214, Tarentum, Pa. (Pittsburgh Plate Glass Co.) HSU, Ku-hua 1, King's Terrace, 1st Floor Kowloon, Hongkong, B.C.C. (Kiu Foong Enamel Factory (H.K.) Ltd.) HUBBELL, Dean S. (E) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. HUBBLE, David H. 206 Elm St., Edgewood (Great Lakes Foundry Sand Co.) HORNER, M. Harlan Pittsburgh 18. Pa. HOLMES, Roland G. (S) 4757 17th N. E. St., Seattle 5, Wash. HUBER, George S. (E) W. S. Dickey Clay Mfg. Co., Box 402 HORNING, Roy A. (GFI) 314 Overbrook Rd., Baltimore 12, Md. Pittsburg, Kans. Armstrong Cork Co., Lancaster, Pa. (Pemco Corp.) HOLM QUIST, Stig B. (R) HORNUNG, Martin R. (W I) HUBER, J. M. CORP. United States Steel Corp. 140 E. Sheridan Ave., New Castle, Pa I D. Parker McAdoo) Research Center, Monroeville, Pa. (Shenango China, Inc.) 100 Park Ave.. New York. N. Y. 50 R oster C eram ic B u l l e t in JBER-WARCO CO. AMERICAN CLAY MACHINERY DIV. (R. A. Garverick) 202 X. Greenwood St., Marion, Ohio JDSON, Charles J. (R) 74 Newton St., West Bovlston, Mass. JDSON SUPPLY & EQU IPM EN T CO. &'. Heine) ^^^B 'ennsvlvania Ave., N. W. ^^Kiington 6, D. C. JETT1G, Fred R. (W I) 296 Brook Ave., North Plainfield, N. J (General Ceramics Corp.) ,'FFCUT, Harold W. (G) Westinghouse Electric Corp. Electronic Tube Div., Box 284 Elmira, N. Y. ,'GHES, Donald L.. Jr. Box 847. Alfred. X. Y. JGHES, George B. (El 236 Indiana Ave.. Dayton 10, Ohio (Frigidaire Div., General Motors Corp.) JGHES, Walter M. (W I) 534 Putnam Ave., Zanesville, Ohio (Chicago Standard Transformer Corp.) JGHEY, Vaughn V. (R) Basic, Inc., Maple Grove, Ohio JI, William L. C. (B) `Radio Corp. of America, Tube Div. Marion, Ind. JLL, J. Brannon (W) Hull Pottery Co., 327 Amerine St. Crooksville, Ohio ULL POTTERY CO. (J. Brannon Hull) 327 Amerine St., Crooksville, Ohio ULSE, Charles O. 463 61st St., Apt. A Oakland 9, Calif. (JMENIK, Michael, Jr. (B) 28477 Parkwood Dr., Inkster, Mich. (Ford Motor Co.) UMMEL, Floyd A. (B) College of Mineral Industries rlvania State University sity Park, Pa. , Richard (G) lympia Rd., Pittsburgh 11, Pa. (Harshaw Chemical Co.) UMMEL, Roy (W ) 4318 Grantley Rd., Toledo 13, Ohio (Champion Spark Plug Co.) UMPHREY, Richard A. (W ) Mycalex Corp. of America Box 311, Clifton, N. J. UND, George J. (W ) 227 Poplar Ave. N. W., Canton, Ohio (Sparta Ceramics Co.) UND, Ralph (R) Speer Carbon Co., Theresia St. St. Marys, Pa. UND, William O. (R) Box 172, Ranson, W. Va. (Standard Lime & Cement Co.) UNGERFORD, R. M. (X) Clayburn-Harbison Ltd. 850 W. Hastings St. Vancouver 9, B. C., Canada UNSBERGER, Jesse F. (R) A. P. de Sanno & Son, Inc. Phoenixville. Pa. UNT, Charles W. (W) 154 Vincent St., Chagrin Falls, Ohio ( Bestwall-Certain-Teed Sales Corp.) UNT, Herbert J. (G) Kimble Glass Co., Vineland, N. J. UNT, John F. (M l) Carpco Manufacturing, Inc. Box 3272, Jacksonville 6, Fla. UNTER, Charles E. (M) Box 430, Erwin, Tenn. ^tffesolidated Feldspar Dept., ^^^B iatio n al Minerals & ^ H K ic a l Corp.) U PPER T , Paul A. (E l) 414 Randolph Rd.. Plainfield, N. J. OL(.G3u(>lt.onN oIn. du1s0tr(ie1s0,0I7n)c.) HURD, Burgess M. (W) 3 Windy Crest Rd., Beaver Falls, Pa. (Ceramic Color & Chem. Mfg. Co.) HURLEY, Robert E. (B) 469 Camden Ave. Moorestown, Burlington County, N. J. (RCA Victor) ,, HURLEY, T. P. (B) Sprague Electric Co. North Adams, Mass. HURST, Erwin J. (W) General Ceramics Corp. Plant 3, Research Dept. Keasbev, N. J. , . HURST. James J., Jr. 340 Hopkins St., S. W., Atlanta. Ga. HURST. Thomas L. (Rl Monsanto Chemical Co., Research Dept. Lindbergh & Olive St. Rds. St. Louis 24, Mo. ' HUTCHINS. John R., IU Massachusetts Institute of Technology Graduate House. Rin. 619A Cambridge 39, Mass. HUTCHISON, Clark (E FI) 709 E. Armstrong St., Frankfort, Ind. (Ingram Richardson, Inc.) HUTCHISON, R. C. (RI) 2133 Newton Ave., Bethlehem, Pa. (Bethlehem Steel Co.) HUTT, Glenn A. (E F) 19629 Scottsdale Blvd. Shaker Heights 22, Ohio (Ferro Corp.) HUTT, Gordon M. (M) Canadian Pacific Railway 703 Windsor Station Montreal 3, Que., Canada HUYCK, L. G. (E) Huyck Construction Co. 1861 DeCook Ave., Park Ridge, 111. HYATT, Edmond P. (W) 3735 S. 3100 East St. Salt Lake City 9, U tah (Electro-Ceramics, Inc.) HYDE, Collin (RI) 581 Oxford St., Worthington, Ohio (Battelle Memorial Institute) HYNES, Frank J. (W I) Oxbow Rd.,-Wayland, Mass. (Raytheon Mfg. Co.) HYSLOP, Joseph F. " Dromore," Major's Loan . Falkirk, Scotland (J. G. Stein & Co., Ltd.) I IANDER, J. Richard (M) Ceramic News, 509 S. Beverly Dr. Beverly Hills, Calif. ICHIKAWA, Yoshio (W ) 1903 Hanover St., Apt. 10 Pittsburgh 18, Pa. (Westinghouse Electric Corp.) IDEAL-STANDARD, S. A. (Paul Lebrum), Vilvorde, Belgium IH RIG. Allen C. (G) 78 Boardman Ave. Cumberland Hills R. R., Manville, R. I. (Corning Glass Works) ILES, Ramon R. (G) 2223 St. James Ct., Owensboro, Ky. (General Electric Co.) ILIFF, Fred K. (W) Harshaw Chemical Co. Jackson & Swanson Sts. Philadelphia 48, Pa. ILLING, Arno M. (W) 5412 Laconia, Cincinnati 37, Ohio (Cambridge Tile Mfg. Co.) IL L IN O IS CLAY PRODUCTS CO. (Howard F. West) 68 N. Chicago St. Joliet, 111. ILLYN. Alexis V. 1080 State Fair Blvd. Syracuse . N. Y. IM. Suk Choong Korean Ceramic Society No. 128-2 Suhrin-Dong, Chongro-Ku Seoul, Korea IMHOFF', Edward J. (M) United States Glass Co. Glassport, Pa. IMMEDIATO, Robert R. (W I) Sprague Electric Co., Nashua, X. H. INDIAN CERAMIC SOCIETY (H. N. Roy) Dept, of Ceramics Benares Hindu Univ.. Benares. India INDIANA GEOLOGICAL SURVEY (Jack L. Harrison) Indiana Universit. Bloomington, Ind. INDUSTRIAL CERAMIC PRODUCTS, INC. (C. R. Oberst) 965 W. Fifth Ave., Columbus 8, Ohio INDUSTRIA VENEZOLANA de VIDRIOS PLANOS C. A. (J. A. Azpurua C.) Ed. Humboldt Ap. 6, Sur Plaza Nltamira Caracas, Venezuela INGERSOLL, Harry (E) 8340 Beacon Ave.. Seattle 8, Wash. ( Pemco Corp.) INGERSOLL-HUMPHYRES DIV. BORG-WARNER CORP. (G. W. Kelch) 201 E. Fifth St., Mansfield, Ohio INGHAM, David (W) 448 North Ave., K ittanning, Pa. (Eljer Div., Murray Corp.) INGRAM-RICHARDSON, INC. (R. H. Coin) Jefferson Rd. Frankfort, Ind. INSLEY, Herbert (BF) 5219 Farrington Rd. Washington 16, D. C. (Consulting Mineralogist) INSLEY, Robert H. (B) Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave., Detroit 11, Mich. INSTITUT de CERAMIQUE FRANAISE 6 Grande-Rue Sevres (S. & O.), France insulator-- See General Electric Co. INTERNATIONAL CLAY MACHINERY CO. (R. H. McElroy) 1145 Bolander Ave., Dayton 1, Ohio INTERNATIONAL COMMISSION ON GLASS (B. P. Dudding) Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, England IRONTON FIR E BRICK CO. (J. H. Rickey, Jr.) Box 536 Ironton, Ohio IRO Q U O IS CHINA CO. (Robert E. Anderson) 2320 Milton Ave., Syracuse 9, N. Y. IRVINE, George C. (W I) Canadian Carborundum Co., Ltd. Niagara Falls, Ont., Canada IRW IN, Joseph T. (E) 1618 Elmwood Ave. Lakewood 7, Ohio (Wim Chemicals) IRWIN, Philip P. (W) Potters Supply Co. East Liverpool, Ohio IRWIN, William W. (W) Potters Supply Co. 11 Washington St., East Liverpool, Ohio ISAACS, Richard P. (M) 78 Elmwood Dr., Livingston, N. J. (Hammill & Gillespie, Inc.) ISAGAWA, Jun Nippon Toki Kaisha, Ltd. #1, Noritakeshinmachi, Nishiku Nagoya, Japan ISELIN, Charles W. (GJ) Thatcher Glass Manufacturing Co. Elmira, N. Y. ISENHOUR, C. W ,, Jr. (S) Isenhour Brick & Tile Co., Box 1249 Salisbury, N. C. ISENHOUR. James V. (S) Sanford Brick & Tile Co.. Colon. X. C. R o s t e r .V> 2NHOUR, John H. (SF) 215 Confederate Ave., Salisbury, X. C. (Isenhour Brick & Tile Co.) 3, Shozo Nippon Gaishi Kaisha, Ltd. 1, 2-Chome, Horita-dori, Mizuho-ku a, Japan R, Robert nrauchstrasse 106 38, Switzerland (Tonwerke Thavngen AG) ES, John B. (R I) 18 Standish St.. Frostburg, Md. (Big Savage Refractories Div. Mexico Refractories Co.) EV, J. Ray (S) Acme Brick Co. R.R. 1, Millsap, Texas J \ BBL*SCH, Ar t hur J. (S'* Pomona Terra-Cotta Co. Greensboro, X. C. \CKM AN. A. J. (R) Vesuvius Crucible Co.. Box 8275 Swissvale, Pittsburgh 18, Pa. \CKSON, A. Curtis (SFI) Robinson Brick & Tile Co. 500 S. Santa Fe Dr., Denver, Colo. \C K SO X . Arthur W. (R) Harbison-W alker Refractories Co. Box 68, Athens, Texas ACKSOX, James , `A vonhaugh', Stonehouse Lanarkshire, Scotland (Jackson, Elphick & Co. Ltd.) ACKSOX, James M. (G) Ball Brothers Research Corp. Box 191, Boulder. Colo. ACKSOX, Mary A. (E) 11006 Montrose Ave. Garrett Park, Md. ACKSOX, Robert E. R. R. 1, Lancaster, S. C. V ITRIFIED CHINA CO. ^ ^ ^ lip R. Distillator) 2 West St. ^ 0 r o a m Manor 65, N. Y. ACKSON, Wharton (M) Wharton Jackson Co. 475 Huntington Dr. San Marino 9, Calif. ACKSON, William M., II (W ) 13 Maura Dr., Woburn, Mass. (Godfrey L. Cabot, Inc.) :ACOB, Bernard T. (R I) National Crucible Co. Mermaid Lane & Queen St. Philadelphia 18, Pa. rACOBI, James H. (E) Avco Manufacturing Corp. Crosley-Bendix Home Appliances Div. Dept. 474, Nashville 1, Tenn. JACOBS, Charles W. F. (W) 63 Hawthorne, Buffalo 23, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) JACOBS, H. Box 117, Vereeniging Transvaal, South Africa (Vereeniging Brick & Tile Co. Ltd.) JACOBS, Louis J. (R) Ramtite Co., 2563 W. 18th St. Chicago 8. 111. JACOBS, Richard A. (G) Brockway Glass Co., Inc. Brockway, Pa. JACOBY, William R. 12 Dyer Dr., lonesville, N. Y. JA FFE, Bernard (\Y1) 4238 Hinsdale Rd. South Euclid 21, Ohio ^ ^ ^ ile v ite Research Center) .j^ H S O N , Robert J. (G) ^jBfDbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio JAMISON, C. Donald. Jr. (R) Koppers Co., Inc., Eng. & Const. Div Koppers Bldg.. Pittsburgh 19, Pa. Vo l. W , N o. 10 ( 10;>7) JANES. Clinton S., Jr. 1025 Vermont Ave.. Pittsburgh 34, Pa. JAXKE. Charles E. ( Sj 3363 W inthrop Dr., Parma 29. Ohio (Cleveland Builders Supply Co.) JANKOWSKI, Charles R. 16 Hakes Ave., Horneli, N. V. JAXSMA, Frank (MF) B F. Drakenfeld & Co., Inc. Washington, Pa. JANSSEN, William F. (M) 15 Oak Ridge Rd.. Basking Ridge. X. J (Bell Telephone Labs.) JARVIS. Theodore (B )' Ford Instrument Co. 31-10 Thomson \\e . Long Island Cit\ 1, X. Y. JASPER. Stanley J. (W Jt 2411 Bell St.. Zanesville. Ohio ( Mosaic Tile Co. ) JEFFERY. Benjamin A. iW l Box 32. Tumacacori.* Ariz. (Champion Spark Plug Co.. Ceramic Div.) JEFFREY, G. H. (W ) Roder Ceramic Studio. 1331 Race St. Philadelphia 7, Pa. IEXKS. C. E. (M) W. S. Tyler Co. 3615 Superior Ave., N. E. Cleveland 14, Ohio JENNINGS. Edward F. (R) 260 E. Walnut. Westfield, N. J. (Carborundum Co.) JENNY, A. R. (M) Combustion Engineering. Inc. Raymond Div., 1315 N. Branch St. Chicago 22, 111. TEXSEN. Edwin K. (E) 2q15 Willoughby Rd. Baltimore 14, Md. (Briggs M anufacturing Co.) JEPPSON, George N. (RF) Norton Co.. One New Bond St. Worcester 6, Mass. JEPPSON. John (R) 40 Westwood Dr., W orcester, Mass. (Norton Co.) JERO, Parker (E) 932 Birchwood Dr., Washington, 111. (Caterpillar Tractor Co.) JIMMERSON, James E. (S) Henderson Clay Products, Box 870 Henderson. Texas JOHNS-MANVILLE SALES CORP. (J. C. Crawford, Jr.) 22 E. 40th St. New York 16, N. Y. JOHNS, William V. (W ) Shenango China Inc., New Castle. Pa. JOHNSON, A. L. (W F) Universal-Rundle Corp. W. Keith McAfee Lab., Box 1268 Maboningtown, Pa. JOHNSON. Alexander H. H. L. Brisbane & Wunderlich Ltd. Lord St., East Perth. West Australia JOHNSON. Alton E. (W I) 4903 X. 53rd St.. Milwaukee, Wise. (Centralab Div.. Globe-Union Inc.) JOHNSON, A. M. (R) Ross-Tacony Crucible Co. Robbins & Milnor Sts. Philadelphia 35, Pa. JOHNSON. Ben 5206 Valley Oak Dr.. Austin 3. Texas JOHNSON, Bruce M. 353 Highland Dr., Seattle 9, Wash. JOHNSON. Clarence L. (W) Globe-Lmion Inc. Q00 E. Keefe Ave., Milwaukee, Wise. JOHNSON. David M. (BJ1 4110 Berkshire Ave., Louisville 5, Ky. (Corhart Refractories Co., Inc.) JOHNSON. Dudley B. (W) 27100 Tremaine Dr., Euclid 32, Ohio (Brush Electronics Co.) JOHNSON, Earle K. (S) Eureka Brick & Tile Co. Box 338, Clarksville, Ark. JOHNSON, Elwin L. 300 S. Goodwin Ave., Apt. 215 Urbana, 111. JOHNSON, Fred H., Jr. (S) Summitville, Ohio (Summitville Face Brick Co.) JOHNSON, George E., Jr. (RI) North American Refractories Co. Curwensville, Pa. JOHNSON, Gordon H. (E) 24188 Gessner Rd. North Olmstead, Ohio (Ferro Corp.) JOHNSON, Harold C. (G) Corning Glass Works Coming, N. Y. JOHNSON, J. A. ^ Progress Engineers, Ltd., Leek New Rd. Cobridge, Burslem Stoke-on-Trent, England JOHNSON, James E. (I) 3173 Herrick Rd., Columbus, Ohio JOHNSON, James R. (BI) 4 Oak Knoll Dr. White Bear Lake 10, Minn. (Minnesota Mining & Mfg. Co.) JOHNSON, Keith N. 441 Westwood Dr., Ames. Iowa JOHNSON, Lawrence D. 1850 West Blvd., Tacoma 66, Wash. JOHNSON, LeRoy A. (E ) 1206 Cleveland St., Evanston, 111. (Chicago Vitreous Corp.) JOHNSON, Norman W. (R) Eaton Manufacturing Co. 9771 French Rd., Detroit, Mich. JOHNSON, Paul V. (SF) Structural Clay Products Research Foundation, Geneva, III. JOHNSON, William A. (E) 7269 Greenleaf Ave. Cleveland 30, Ohio (Ferro Corp.) JOHNSTON, James K. (M) 737 N. Park Ave., Norristown, Pa. (General Electric Co.) JOHNSTON, J. G. Leeds Fireclay Co., Ltd. Wortley, Leeds 12, England JOLLEY, Robert W. (R) 10 Ox Bow Lane, Bloomfield, Conn. (Hartford-Empire Co.) JONAS, Edward C. (G) University of Texas, Dept, of Geology Austin, Texas JONES, Cecil M., II (R) Box 65, Greendale Sta. Worcester, Mass. (Norton Co.) JONES, Francis L. Box 538, Georgia Tech., Atlanta, Ga. JONES, Frank L. (R) Koppers Co., Inc., Box 128, Verona, Pa. JONES, George A, (G) 3411 Central Ave. Parkersburg. W. Va. (Corning Glass Works) JONES. Glen A. (B) Diamonite Products Mfg. Co. Shreve, Ohio JONES, Howard E., Jr. (R) 19150 Robson, Detroit 35. Mich. ( Tones-Mundle & Co.) JONES. John T. 1110 13th St.. Golden. Colo. JONES, Maynard J. (E) Pfaudler Co.. 1000 West Ave. Rochester 11. N. Y. JONES METAL PRODUCTS CO. (Edwin F. Mulligan) West Lafavette, Ohio JONES. Paul E. Orviston. Pa JONES, Paul R. (X) West Virginia University Dept, of Chem. Engr. Morgantown, W. Va. JONES, Raymond B. (W) National Tile & Manufacturing Co. 1200 E. 26th St., Anderson, Ind. R oster 57 N'ES, Richard E. (R) Pittsburgh Plate Glass Co. Research Laboratory, Creighton, Pa. NES, Robert 0 . (R) Standard Slag Co. Box 3, Gabbs, New NES, Roger D. (R) shing PI., Buffalo 20, N. Y. to Refractories & Kves Corp.) NKER, G. H. Philips Research Labs., Kastanjelaan Eindhoven, Netherlands NTZ, Melvin L. (M) Box 32186, Los Angeles 32, Calif. (Melvin L. Jontz Co.) RDAN, John N. (G) Consumers Glass Co. Ltd. Box 456, Station B. Montreal, Que., Canada RDAN, John W. (M) Baroid Diw, National Lead Co. Box 1675, Houston 1, Texas RDAN, R. E., Jr. (W) Mosaic Tile Co., Zanesville, Ohio RGENSON, Paul J. 1153 Sherman Ave. Salt Lake City, Utah >VA BRICK W ORKS (J. L. Jova) Roseton, N. Y. >VA, J. L. (S) Jova Brick Works, Roseton, N. Y. )YNER, Bobby L. (W) Erie Technical Ceramics Div. Erie Resistor Corp. Box 677, State College, Pa. 'DD , Donald M. (E) 19707 Wickfield Ave. Cleveland 22, Ohio (Ferro Corp.) JDD, Roger D. (S) Endicott Clay Products Co. Box 17, Fairburv, Nebr. JD K IN S, Robert W. (W ) Wilbur B. Driver Co. McCarter Hwy., Newark 4, N. JDavid (M) Pen & Pencil Corp. 500 Willow Ave., Hoboken, N. J. K ACICZ, Joseph M., Jr. 884 Red Oaks Dr., Elberon. N. J. 1ADEY, Frederic L., Jr. (B) Four Bridges Rd,, Chester. N. J. (Johns-Manville Corp.) 1AHLSON, W. S. (G) . General Electric Co., Lamp Dept. Pitney Glass Works, Nela Park 12 Cleveland, Ohio :AHN, Max (G) 4932 Oleander Dr., Wilmington, N. C. 1AISER, Leonard F. (G) 332 E. Wayne St., Maumee, Ohio (Libbey-Owens-Ford Glass Co.) fALLUP, Charles, Jr., (W I) Helipot Corp., Box 458 Newport Beach, Calif. CALMAN, Frank R. (E l) 2014 Baxterly Rd., Lakewood 7, Ohio (Pemco Corp.) CALMBACH. William J. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio CALOUSEK, George L. (G) 2633 Merrimac Blvd., Toledo 6, Ohio (Owens-Illinois) 5CAMICH, Barnet Z. (B) 11 Garwood St., South River, N. J. (Arm:y Ordnance Corps) :a e LrR, Anthony R. (GJ1) # H arrison Ave., Apt. 7 Paso, Texas (FPiitttssburgh Plate Glass Co.) Ka n a z a w a , Edward ib j d 10056 Mann Dr.. Monta Vista. Calif. (Lockheed Aircraft Corp.) Voi.. 3(i. No. 10 ( Hi.">7) KANE, John L. (W) 8457 Wicklow Ave. Cincinnati 36, Ohio (Cincinnati Milling Products Div., Cincinnati Milling Machine Co.) KANG, Yong G. Hankuk Glass IndustiA Co. Ltd. Box 10S2. 5 Namchang-Dong, Choong-Ku, Seoul, Korea KANTOR. Neil I. (W I) 198 Mason Dr., Metuchen, N. J. (Crucible Steel Co. of America) KAPADIA, Homi (E) 302 ty N. Fourth St.,' Niles, Mich. (Kawneer Co.) KAPPMEYER, Keith K. 10609 Lindberg Ave. Pittsburgh 35, Pa. KARKHANAVALA, M. D. 239, Botawala Bldg., Tardeo Bombay 7, India (Atomic Energy Commission) KARNAS, John S. (W) 1715 W. Fourth St. Rd. Mansfield, Ohio (Ingersoll-Humphryes Div., Borg-Warner Corp.) KARNER, Ernest F. 806 S. Fifth St., Champaign, 111. KASPER, Robert J. (R) Ohio Crankshaft Co. 3800 Harvard Ave., Cleveland 5, Ohio KASSEES, John S. (B) American Testing Lab., Inc. Box 1421, Lancaster, Pa. KAST, Edward T. Box 847, Alfred, N. Y. KASTEN, Elliott A. 2041 Pacific St., Brooklyn 33, N. Y. KASTEN, Vernon L. (W I) Three Oaks, Box 84, Jackson, Mo. (Ceramo Co. Inc.) KASTENBEIN, Ernest L. (W ) 100 E. Van Ness Ave., Rutherford, N. J (Tile Council of America) KATONA. Gabriel P. (GJ) 65 '/j Sterling St.. Corning, N. Y. (Corning Glass Works) KATZ, Joseph M. (W I) Lockheed Aircraft Corp. Missile Systems Div., 65-70 Sunnyvale, Calif. KATZ, Sigmund (E) 24 Coolidge Ave.. West Orange, N. J. (Permadent Labs.) KAUFFMAN, John R. (M FI) 13285 Braun Rd., Golden, Colo. (Speedster, Inc.) KAUFFMANN, Otto T. (W) Frontenac Floor & Wall Tile Ltd. Kingston, Ont., Canada KAUTZ, Karl (EFI) 24 Leon Rd., Pittsburgh 20, Pa. (Vitro Mfg. Co.) KAVADAS, Paul P. 4116 12th Ave., N. E,, Apt. 203 Seattle 5, Wash. KAY, William T. (R) E. J. Bartells Co. 1212 Sixth Ave., S., Seattle 4, Wash. KAYSER. Julius A. (R) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. KEANEY. J. C. (G) 1201 Banksville Rd., Pittsburgh 16. Pa. (National Lime & Stone Co.) KEANEY, Joseph C., Jr. (G) Feldspar Corp., 1201 Banksville Rd. Pittsburgh 16, Pa. KEANEY, Robert C. (G) St. Lawrence Fluorspar, Inc. 1201 Banksville Rd., Pittsburgh 16, Pa. KEARNEY, John P. (G) 2723 Densmore Dr., Toledo 6, Ohio (Kimble Glass Co.) KEBLER, Leonard (E) Ward Leonard Electric Co. Mt. Vernon, N. Y. KEEFE, Daniel J., Jr. (WJ) 6 Circle Rd., Scarsdale, N. Y. (U. S. Army) KEEFE. Robert M. (R) 12 Beth Lane, Malvern, Pa. i H. K. Eprter Co.) KEEFER, George E. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 1, Ohio KEHL, Nelson H. (RI) E. J. Lavino & Co. Box 29, Norristown, Pa. KE1M, Laurence A. (G) 144 Cochran Rd., Pittsburgh 28, Pa. (Pittsburgh Plate Glass Co.) KEITH, Miss L. C. Canadian Ceramic Society 49 Turner Rd. Toronto 10, Ont., Canada KEITH, Wendell P. (RI) 1234 E. Marvista St., Whittier, Calif. (W. P. Keith Co.) KELCH, G. W. (W) Ingersoll-Humphryes Div. Borg-Warner Corp., 201 E. Fifth St. Mansfield, Ohio KELLER, Francis Pfungen, Switzerland (Keller & Cie. A.G.) KELLER, George W. (G) Owens-Illinois 1700 N. Westwood Ave., Toledo 7, Ohio KELLEY, Joseph A. (S) Zonolite Co., Box 217 Travelers Rest, S. C. KELLY, Austin J. (E) Guelph Stove Co., Ltd., York Rd. Guelph, Ont., Canada KELLY, George D. (E) 1100 Dublin Rd., Columbus 8, Ohio (Battelle Memorial Institute) KELLY, Hal J. (R) 6025 52nd N. E., Seattle 5, Wash. (U. S. Bureau of Mines) KELLY, John V. (R) Kaiser Steel Corp. Box 217, Fontana, Calif. KELLY, Joseph F. (R) 301 Braddock Ave., Lansdowne, Pa. (Naval Boiler & Turbine Lab.) KELLY, William J. (W I) 912 29th St., Hondo, Texas (Universal-Rundle Corp.) KELSEY FERGUSON BRICK CO. (R. M. Carpenter) East Windsor Hill, Conn. KELSEY, V. V. (MF) Winton Farm, Clifford, Va. (Consultant) KELTON, Stanton C., Jr. (G) Rohm & Haas Co., Bristol, Pa. KEMP, John A., Jr. (W) Church St.. R. R. 1. Brooklyn, Conn. (American-Standard) KEMPF, William C. (RI) 28 Homer PI., Metuchen, N. J. (Carborundum Co.) KENAGY, Lloyd N. (RJ) 770 Fetters Mill Rd. Huntingdon Valley, Pa. (General Refractories Co.) KENAGY, William L. (RFI) 770 Fetters Mill Rd. Huntingdon Valley, Pa. (Simonds Abrasive Co.) KENAN, Wilfred M. 3012 Farrior Rd., Raleigh, N. C. KENDALL, Thomas A. (S) University of Kentucky College of Eng., Lexington, Ky. KENDRICK, Robert W. (D) One Elm Way, Westboro, Mass. (Bay State Abrasive Products Co.) KENDRICK, Thomas B. (G) Lancaster Glass Corp. 220-226 W. Main St., Lancaster. Ohio R oster 9 EXXEDY, Richard \V. (\V) 373 Winchester Ave., Langhorne. Pa. (Star Porcelain Co.) ENT, Joseph P. (W I) 247 Starr St., Brooklyn 37, N. Y. (Leviton Mfg. Co., Inc.) E- VNTI , N. Johnson (RI) *i-M! anville Sales Corp. 40th St., New York 16, N. Y. E^^^BA'i;lliam B. iMI.i Fairview Place. Alliance. Ohio (KentuFcky-Tennessee Clav Co.) ENTUCKY CLAY MINING CO. (W. J. Watkins) Mavfield, Ky :e n t u c k y -t e n n e s s e CLAY CO., INC. (Chester Gulick' Mavfield, Kv. .EXWORTHY, Orville O. (B) 1486 Arthur Ave., Lakewood 7, Ohio (Ferro Corp.) 1EN YON, Clark (W ) Frenchtown Porcelain Co. Frenchtown, N. J. .EPKA, George M. (M l) Braun Corp., 1363 S. Bonnie Beach PI. Los Angeles 54. Calif. CEPLINGER, Robert B. (RFI) Carroll Clay Co. Box 56, Carrollton, Ohio ERINS, M. P., Jr. (E) Stauffer Chemical Co. 380 Madison Ave., New York, N. Y. CERLA, Hans (R) 525 Beaumont Ave., Baltimore 12, Md. (Kerloid Corp.) CERPER, Matthew J. (Bl) National Bureau of Standards Div. 9.2, Washington 25, D. C. KERR, Charles H. (GF) 2861 Chatsworth Blvd. San Diego 6, Calif. KERR, John M. (BJ) 117 Amherst Lane, Oak Ridge, Tenn. (Union Carbide Nuclear Co.) KS.EERRR, W. Raymond (RFI) ^ ^ c rnnssttrong Cork Co. ; 441, Beaver Falls, Pa. cl^W b)cGE. Frank E. Johhnnsson Matthey & Co. Ltd. Research Labs., Exhibition Ground? Wemblev, Middlesex, England KERSHNER, William G. (W I) 117 S. 14th St., Olean, N. Y (Olean Tile Co.) KESSEL. David J. 601 \Y. High St.. Urbana, III. RESTER. Ralph G. (RI> 1394 June Dr., Maumee, Ohio (Kimble Glass Div., Owens-Illinois) KEYS, Robert A.. Jr. 308 Whitehall Rd., Anderson, S, C. KIBLER, H. W. (W ) Southern Potteries, Inc. Box 279, Erwin, Tenn. K IEHL, Harry R. (G) 223 Chemung St., Corning, N. Y. (Corning Glass Works) KIESOW, Paul F. (G) Forest Hills Dr., Elmira, N. Y. (Westinghouse Electric Corp.) KILCOYNE, John R. (W) Canadian Porcelain Co. Ltd. Box 428, Hamilton, Ont., Canada KILGORE CERAMICS CORP. (D. H. Walkup) Box 1619 Kilgore, Texas KILLMAR, Henry M. (RI) Carborundum Co.. Box 268 Perth Amboy, X. J. KIM. Kee Hyong Pennsylvania State University Box 22. College of Mineral Industrie? ^ ^ 'niversity Park. Pa. ^ ^ Y o u S. I ^ H K r th Carolina State College * ^ t ) e p t . of Mineral Industries Raleigh. N. C. K IM BLE GLASS CO. (H. R. Black) 1700 X. Westwood Ave.. Toledo. Ohi<< KING, Burnham W., Jr. (EFI) 2234 Lane Rd., Columbus 21, Ohio (Battelle Memorial Institute) KING, Charles B. (G) 1B9 Cedar St., Corning, N. Y. (Corning Glass Works) KING, Gerard J. (B) . 1209 X. Quaker Lane, Apt. 203 Alexandria. Va. (E.R.D.L.. Fort Belvoiri KING, Harry M. (M) 942 W. State. Sycamore. 111. (Anaconda Wire & Cable Co.) KING, R. M. (XF1) , . Lord Hall, Ohio State Univ. Columbus 10, Ohio KING, Robert G. (W ) 143 N. Center St., Grove City, Pa. (Vitro Mfg. Co.) KING, Robert M. 807 S. Victor, Champaign, 111. KING, Walter F. (M) . 365 Arborlea Ave., Morrisville, Pa (Shenandoah Silica Co., Inc.) KING. Wayne W. (R) 803 Kingston Rd., Baltimore 12. Mil. (\V. S. Tvler Co.) KINGERY, W. D. (B) Ceramics Div., Mass. Inst, of Tech Cambridge, Mass. KINSMAN, Bradley Q. (MI) 7 Wicks Blvd., Corning. X. Y. (Corning Glass W orks) KIRCHER, Paul J. (G) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30, Md. KIRCHER. Wolfgang Didier-Werke. 16 Lessingstr. Wiesbaden. West Germany KIRCHNER. Henry P.. Jr. (B) Cornell Aeronautical Lab. 4455 Genesee St., Buffalo, N. Y. KIRKEXDALE, G. A. (X I) State University of New York College of Ceramics, at Alfred Univ. Alfred. X. Y. KIRKPATRICK, Frank (WFI) 2920 M anhattan Ave. Hermosa Beach. Calif. (General Tile Co.) KIRKPATRICK, Harry B. (E) National Bureau of Standards Div. 9.4, Washington 25, D. C. KLANE, Frank (G) Corning Glass Works. Corning. N Y. KLATT, Robert W. (G) American Zinc Sales Co. 77 W. W ashington St., Chicago. 111. KLAUS. Irving (W) 137 W inthrop Rd. Washington Park. Nixon, X. J. (Permadent Products. Inc.) KLAUS. Sol C . Jr. (W) 50 S. Munn Ave., Apt. 804 East Orange, N. J. (General Instrum ent Corp.) KLEEMAX, Lee A. (R) 5700 Center Ave.. Apt. 906 Pittsburgh 6. Pa. (Harbison-W alker Refractories Co.) KLEIN, Jonathan D. Massachusetts Institute of Technology Rm. 4-051, Cambridge 39, Mass. KLEINHANS, C J. (E) Porcelain Metals Corp. 1400 S. 13th St., Louisville 10, Kv. KLEINPAUL. Mrs. Elfride Kleinpaul Caoltni Argille ed Afttni Via Luigi Razza 2, Milano. Italv KLEKOTKA, Joseph F. (G) ' 3601 Reed St.. Philadelphia 46. Pa. (Philadelphia Naval Base) ELEVENS, H. B. (G) Mellon Institute University of Pittsburgh Pittsburgh 13, Pa. KLEYMEYER, Clifford A. (S) Standard Brick & Tile Corp. 123 N. W. Fourth St. Evansville 8, Ind. KLICKER, Everett E. (R) Michigan Chemical Corp. Saint Louis, Mich. KLIMAX, Morton 1. (B) 6 Sutton St., Mattapan 26, Mass. (Arthur D. Little, Inc.) KL1NDER, Thomas W. 28 Princeton Rd., Parlin, X. J. KLINE, Hugh L. (R) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky KLINEFELTER, T. A. (R FI) 2116 "F" St.. N. W. Washington 7, D. C. L\ S. Bureau of Mines) KLIXGSBERG, Cyrus 508 Linden Rd., State College, Pa. KL1PPER, Joseph <M> Clipper Diamond Tool Co., Inc. 345 Hudson St.. New York 14. X. Y. KLOCKE, Edward J. (M) H. C. Spinks Clay Co., Inc. 10(10 First National Bank Bldg. Cincinnati 2, Ohio KLOCKXER, Herman Richard (E) Universal-Rundle Corp. W. Keith McAfee Lab., Box 1268 Mahoningtown, Pa. KNAPP. Robert C. (W) Totman Rd., R. R. 1 East Syracuse, N. Y. ( Insulator Dept., General Electric Co.) KNAPP, Thomas E. (W) 120 Mission Meade Rd.t New Castle. Ta. (Shenango China, Inc.) KNAPP, William J. (BI) University of California Dept, of Engineering Los Angeles 24, Calif. KNAUFT, Robert W. (R) Charles Taylor Sons Co. Box 58, Annex Station Cincinnati 14, Ohio KNECHT. Albert O. (W I) 201 Edgewood Ave., New Castle Pa (Universal-Rundle Corp.) KXESEL. Les (W) Cala Tile 4911 E. Slauson Ave., Maywood. Calif. KNIGHT, E. H. (S) Maurice A. Knight, " Knight-W are" Box 150, Crooksville, Olm. KNIGHT. M. A.. Jr. (S) Maurice A. Knight, "Knight-Ware" Box 111, Akron 9, Ohio KNIGHT, MAURICE A., " K N IG H T-W A RE" (M. A. Knight, Jr.) Box 111, Akron 9, Ohio KNIGHT, Mellen A. (B) Minnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn. KNIGHTON, Heywood J. (G) 542 Lakepointe Grosse Pointe Park 30. Mich. (Ford Motor Co.) KXISELY, Robert C. (G) 2907 Letchworth Pky., Toledo 6, Ohio (Kimble Glass Co.) KNIZEK, Jan Otto (R) Apartado 2739, Mexico, D. F. Mexico (Compaa Mexicana de Tubos de Albanal, S. A.) KXOBLAUGH, Walter C. (R I) Box 271, R.R. 3, Tiffin, Ohio (Basic, Inc.) KNOWLES, EDW IN M., CHINA CO. (\V. D. Packman) Newell, W. Va. KNOWLES. Philip S. (S) 210 Taylor Rd., Elgin, Texas ( Elgin Butler Brick Co.) KXOWLTOX, Donald E. (W) 510 S. Osage Ave.. Inglewood, Calif. (General Tile Co.) KXOWLTOX. Samuel H. (W) 1615 Birmingham Blvd. Birmingham. Mich. (Aluminum Co. of America) James J. (G) leinzer St., Avenel, X. J. lo.x Laboratory, Inc.) SEN, Friedrich P. (BI) .2 Crescent St., Washington 16, D. C. ational Bureau of Standards) SEN, Rolf rges^d, PI . A., Norway # Fabrikker) fcivind (R) esteHFTRieefractories Co. x 169, lone, Calif. , Daniel 0 . (M) I. du Pont de Nemours & Co., Inc. ectrochemicals Dept. Buckingham Ave. irth Amboy, N. J. ... Frank A. (M) ational. Sales Corp. 7 E. Fourth St., Cincinnati 2, Ohio 1, Renato arconi Italiana S. p. A. tabilimento Tubi Elettronici ia Pile 60, L 'Aquila, Italy 1. Richard L. (B) alter Kidde & Co. 25 Broadway, Newark, X. J. i , William J. (W I) .. C. F. Electronics 336 N. Henry St., Alexandria, Va. HANEK, Michel (R) 141 153rd St., S. E., Bellevue, Wash. Gladding, McBean & Co.) HLER, W. A. (RI) lineral Industries Bldg. Vest Virginia University vlorgantown, W. Va. NIG, Charles Jacob (W FI) ngr. Expt. Sta., Ohio State University Columbus 10, Ohio NIG, E. W. (M) Consolidated Feldspar Dept. International Minerals & Chemical Corp. 20 N. Wacker Dr., Chicago 6, 111. INIG, John H. (W FI) R ut^^s, The State University So^^HLof Ceramics X ^^^H unsw ick, X. J. C. (X) Lindberg Engineering Co. 2450 W. Hubbard St., Chicago 12, 111. -IL, Hans Leerbachstr, 117 Frankfurt A. M., Germany ( Degussa) HL, W alter H. (R) 12598 Valley View Dr. Los Altos, Calif, f Stanford University) HLER, Anthony M. (R) 400 Atlantic Ave., Springlake, N. J. (Consultant) H L E R CO. (G P. Gavin) Kohler, Wise HLER, Maurice A. (R) 415 Monmouth Ave. Spring Lake, N. J. (Babcock & Wilcox Co.) HN, Joseph (W) Universal Dental Co. 48th & Brown Sts., Philadelphia 39, Pa. HNE, Frank H. (W) Ceramic Color & Chemical Mfg. Co. New Brighton, Pa. >LLIE. Thomas G. 653 Willard Ave., S. W.. Atlanta, Ga. 'LSTAD, John H. (M) 3604 Laguna Dr.. Decatur. Ga. ( Inter-Kiln-Salgo Engineering Co.l NOPICKY, Kamillo Forschungsinstitut der Feuerfest-Industrie Helmholtzstr. 27, Bonn, Germane J ^ B U T C H , Gilbert D. 74th Ave. ^ ^ r o o d Park 35, 111. 1XRAD. Howard E. (R) Claire Dr., R. R. 5. Somerville. N. T. f'John--Manville Corp.l 30. X u . U) (111071 KOOIJ, K. Ciynnotte Unie N.V. 7, Tielerweg Geldermalsen, Holland KOOS, E. K. (W I) Sterling China Co. East Liverpool, Ohio K O PP GLASS, INC. (C. E. Leberknight) Box 8?55 Pittsburgh 18. Pa. K OPPERS CO., INC. (Frank L. Jones) Box 128, Verona. Pa. KORA, Vosio 2 Chme, Katsuyama-Cho Yawata, Fukuoka. )apan ( Kurosaki Fire Brick Mfg. Co. Ltd.) KOROLKOFF. Nicholas O. (W) Rome Air Development Center. USAF RCSGPP--Grifnss AFB, Rome. N. Y. KOSCHNY, Arthur American Ceramic Society, Inc. 4055 N. High St., Columbus 14, Ohio KOSHUBA, Walter J. (BI) . 424 Hillcrest Dr., Wyoming 15. Ohio (General Electric Co.) KOVALICH, Joseph J. (W) 189 Villa PI., Rahway, X. J. (Radio Corp. of America) KOWAL, Leo B. (G) Canadian Pittsburgh Industries, Ltd. 300 Blvd. St. Croix Ville St. Laurent, Que., Canada KOWALKA, Warren R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio KRAFT, C. W. (S) Kraftile Co., Niles, Calif. KRAFT, Maurice M. (E) Kraft Chemical Co. 917 W. 18th St., Chicago, 111. KRAFT, Ralph G. (B) 102 W. Chateau Place Milwaukee 17, Wise. (Allen-Bradley Co.) K RA FTILE CO. (C. W. Kraft) Niles, Calif. KRANER, Hobart M. (BFI) Bethlehem Steel Co. Bethlehem, Pa. KREGER, John M. (R) Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. J. KREH BIEL, Frederick H. (G) Box 36, Pataskala, Ohio (Owens-Coming Fiberglas Corp.) KREHBIEL, H. Orton (W) Pyrocones Inc., Pataskala, Ohio KREIDL. E. L. (G) A. D. Little, Inc. 30 Memorial Dr., Cambridge, Mass. KREIDL, Norbert J. (GF) 40 Milford Rd., Rochester 10, N. Y. (Bausch & Lomb Optical Co.) KREUER, Albert L. (M) Orefraction, Inc., 7425 Thomas St. Pittsburgh 8, Pa. KRIEGEL, W. W urth (X FI) 149 Dallam Rd., Newark, Del. (N orth Carolina State College) KRIGER, Frederick S. (G) 148 E. Second St., Corning, N. Y. (Corning Glass Works) K RILL, Karl E. (B) Ohio State University Columbus 10, Ohio KROECK, William H. (G) Corning Glass Works Box 544, Corning, N. Y. KROGSTIE, Lars Bernhard Fredrikstad, Norway (Norsk Teknisk Porselenfabrikk) KRONBERG, Marritt L. (B) General Electric Co., Research Lab. Schenectady, X. Y. KRONMAN, Samuel J. (W I) Carteret China Co. High St.. Carteret, N. J. KRULL, Alan R. (B) Technological Institute Library Northwestern University Evanston, 111. KRUMW1EDE, John F. 404 Fox River St.. Plainfield, III. KRUSOX, Joseph H. f R) Box 358, Frostburg, Md. (Big Savage Refractories Div. Mexico Refractories Co.) KRYSTYXIAK, Casimir W. (R) 343 Howell St., Schenectady 3, X. Y". (General Electric Co.) KRYWULT, Edward Z. (W) 171 St. Joseph Ave. Long Beach 3, Calif. (Huntington Tile, Inc.) KUECHLER, Adolph (W I) 169 Congress Ave., Providence 7, R. I. (American Emery Wheel Works) KUGLER. Willy Stoneware Factory Embrach Ltd. Embrach. Zurich, Switzerland KULCSAR, Frank (B) Clevite Research Center 540 E. 105th St., Cleveland 8, Ohio KUMIXS, Charles A. (B) Interchemical Corp. 432 W. 45th St., New York 36, N. Y. KUNDLER, Hanns H. (M) Arnhold Ceramics, Inc. One E. 57th St., New York 22, N. Y. KUNZMAN. Edward E. (MI) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio KURKJIAX, Charles R. Department of Glass Technology Sheffield University Sheffield, England KURTZ, Peter, Jr. 827 Second St., Apt. B. Santa Monica, Calif. KUSHNER, Burton A. Box 5188, Georgia Tech., Atlanta, Ga. KUYPER, Geoffrey S. (I) Griffin Wheel Co. 445 X. Sacramento Blvd., Chicago, 111. KYANITE MINING CORP. (Gene Dixon) Cullen, Va. KYI, Maung Yu Union of Burma Applied Research Inst. Junction of Kaba Ave.-Kanbe Rd. Kanbe, Rangoon, Burma KYOKWAI, Yogyo Ceramic Association, Japan Xo. 7, Shiba Xishikubosakura C.awa-Cho. Minato-Ku, Tokyo, Japan KYOXKA, Joseph C. (W I) 303 12th Ave. X., Hopkins, Minn. (Ceramic Arts Studio) L LABANSAT, M. Jacques Socit Professionnelle Des Produits Franais De Terre Cuite 23, rue de Cronstadt, Paris XV, France LABORATORIO QUIMICO NACIONAL (Jorge Ancizar-Sordo) Ministerio de Minas y Petroleos Apartado 2577, Bogota, Colombia LACHMAX, Irwin M. (W I) 18 Pine Dr., Roosevelt, N. J. (Thermo Materials, Inc.) LACLEDE-CHRISTY WORKS REFRACTORIES DIV. H. K. PORTER CO. (W. L. Fabianic) 4705 Ridgewood Ave., St. Louis, Mo. LACONICH, Sixto Godofredo Porcelana Americana S. A. San Julian y Andes Lomas de Zamora, F.C.N.G.R. Argentina LACY, Lyman W. (S) Cannon & Co., Box 802 Sacramento 4. Calif. LADOO, Raymond B. (M) 42 Huntington Rd., Newton 58, Mass. (Consulting Engineer) R oster 03 tFORGE, Louis H., Jr. (W) 764 Marion Ave., Palo Alto, Calif. [Consulting Engineer) AIDLER, Douglas S. 84, Vicarage Ln. Kings Langley, Herts, England (Associated Lead Manufacturers Ltd > A1RD, Charles (SI) Holly Springs, Miss. Springs Brick & Tile Co.. IncA Am m Edward \V. (S) 13U1 Monroe. Baytown, Texas (Cedar Bayou Brick & Tile Co.J .AlRD, Robert K. (E) 4507 Blue Bird Ave., Louisville 13, Ky. t American Radiator & Standard Samtarv Corp.. Plumbing Div.) -AKTASICH. Peter M. Box 847, Alfred. N. Y. .aM.AIRE, Robert V. (RI) Sawmill Rd., Warren Tp. Plainfield. N J. I International Nickel Co., Inc.) LAM \R . George B. <R) Interchemical Corp., Albion Kaolin Div. Hephzihah, Ga. LAMAR. Wayland W. (RJ) Hephzibah. Ga. ( Interchemical Corp.) LAMB. Hal (M) Braun Corp., 1363 S. Bonnie Beach PI. l.o< Angeles 54, Calif. LAMBE. C. M. (M FI) 2319 Thyer St., Evanston, III. (United States Gypsum Co.) LAMBERT, Joseph M. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. LAMBERTSON, Wingate A. (BI) Carborundum Co., Research Lab. Niagara Falls, N. Y. LAMBERTUS, Harold (B) American Bearing Corp. 429 S. H arding St. Indianapolis 7, Ind. LAMBIE. J. M. (R) j|^H kndlav Clay Products Co. ^^^B ashinpton. Pa. I ^ ^ B A C K . Charles R., Jr. (M) Carborundum Co.. Keasbey, N. J. LANDRON, Rafael, Jr. (R) Corning Glass Works, Corning. X. Y. LANE, George J. (M) Edgar Plastic Kaolin Co. Edgar, Fla. LANE, Richard O. (W I) Macklin Co., 2917 Wildwood Ave. Jackson. Mich. . LANG, Richard L. <G> Ohio Fuel Gas Co. 17 N. Fourth St.. Zanesville, Ohio LANG, Samuel G. (E) Hartwood Glass & Metals Co. Box 865, MartinsHirg, W. Va. LANG, S. M. (W) Nuclear Materials & Equipment Corp. Box 436, Apollo, Pa. LANGE, James M. (R) Bethlehem Steel Co.. Fuel Div. Bethlehem. Pa. LANGE, Louis A. (M) Industrial Heat Control Products 641 Hawthorne Ave. South Milwaukee. Wise. LANGROD, Kasimir tW) 462 Locust Terr.. West Hempstead. N. Y. (Sylvania-Corning Nuclear Corp.) LANGSTON, Robert B. University of California Hearst Mining Bldg., Rm. 164 Berkeley 4, Calif. NIER, William S. (R) I Babcock & Wilcox Co. ' Old Savannah Rd., Augusta, Ga. LANXES. Eugene M. (R I) 1695 N. Union St.. Fostoria, Ohio (Hoeganaes Sponge Iron) V o l . 3(i. No. 10 (10.57) LAPP, Grover W. (MF) Lapp Engineering Co. 68 W. Main S t, Le Rov, N. Y. LAPP INSULATOR CO., INC. (K- E. Stettinius) Le Roy, N. Y. LARISCH, Herbert W. i E) 10 Rutgers St.. E. Hill Estate* Smithtown, X. Y. (Fairchild Engine D i\. > LARKIN. Paul G. (D) 250 N. Harrison St., Campbell. Calif. (Consultant) LaROCCA, Frank J. (Rl Colorado Fuel & Iron Corp. Box 316, Pueblo. Colo. LARSEN, Inge Marie A S Bing & Grmulahl Vesterbrogade. 149 Copenhagen. Denmark LARSON. Edward A. i S) Larson Clay Pipe Co. 9980 Van D\ke A \e . Detroit 34, Mich. LARSON. Paul' F iW)* 3866 Norman Ave., N W. Canton 9, Ohio (Sparta Ceramic Co.) LARSON. Thomas L. (RD 971 Pleasant, Boulder. Colo. (U. S. Navy) LASEMAN, Malcolm E. (S) 51 S. Fenton St., Denver 14, Colo. (Robinson Brick & Tile Co.) LASKY, Elliott Box 847, Alfred, N. Y. LASS, George 243 Upson Lane New Brunswick, N. T. LASSITER. Perry B. (RJ) 3011 W rightsboro Rd.. Augusta, Ga. (Babcock & W ilcox Co.) LATCHFORD GLASS CO. (C. L. Dillon) Box 71707 Los Angeles 1, Calif. LATHE. Frank E. (R) National Research Council Ottawa, Ont., Canada LATIMER, Glen H. (R) 2613 Dogwood Ln., East Norriton Tp. Norristown, Pa. (E. J. Lavino & Co.) LATIMER. Horace L. (WI) 248 Questend Ave. Mount Lebanon, Pittsburgh 34, Pa. (O. Hommel Co.) LATIMER. Trent W. Ohio State University, Baker Hall Columbus 10, Ohio LATTIN, Tudson M. (R) 14644 S. Edbrooke Ave., Dolton, 111. (International Harvester Co.) LAUCHNER, Julian H. (E) University of Illinois Dept, of Ceramic Engineering Urbana, 111. LAUGHLIN. HOMER. CHINA CO. (T. M. Wells) Newell. W. Va. LAURIE, DOMINIC (RI) Titanium Alloy Mfg. Div., National Lead Co. Niagara Falls, N. Y. LAU7.AU. Wilbur R. (R) National Carbon Co.. Fostoria, Ohio LAWLESS. Emmett A.. Jr. (S) Alton Brick Co.. Box 394, Alton, Til. LAWRENCE. Howard O. (W) Industrial Ceramics Ltd. Cooksville. Ont.. Canada LAWRENCE, Ralph V. (RI) 926 Kenneth Rd., Glendale 2, Calif. (Gladding, McBean & Co.) LAWRENCE. Walter F., Jr. (W I) 153 Momingside Rd., Verona, N. J. (RCA Victor) LAWRENCE, Willis G. (B) State University of New York, College of Ceramics, Alfred, N. Y. LAWSON, W. Branch (W) 647 X. Elm St., Erwin, Tenn. (Lawson Feldspar & Minerals) LAXTON. Wilbur (.Li; Continental Can Co., Inc. Hazel-Atlas Glass Div. 126 Market St., Zanesville, Ohio LAYDEN, George K., Jr. Pennsylvania State University Box 23. Mineral Industries UniwrMtv Park, Pa. LAYNE. Fred A. (\V) Louthan Mfg. Co., Box 781 East Liverpool, Ohio LAYSON, W. G., Jr. (W) 518 Sterling St., Chattanooga 5, Tenu. (American Lava Corp.) LAYTON, Donald R. (GI) Brockwav Glass Co., Brockway, Pa. LAZARKIS, Peter J. (W) 37 Fifth Ave., Watertown. Mass. (Ravtheon Manufacturing Co.) LEAD INDUSTRIES ASSOCIATION (Robert L. Ziegfcld) 60 E. 42nd St. New York 17, N. Y. LEAKE, Fred, Jr. (M) _ Evans Lead Corp., Box 1467 Charleston 25, W. Va. LEANDER. Karl Johan AB Hoganasmetoder Hoganas. Sweden LEAVER, Stanley (R) 6917 Buffalo Ave.. Apt. 2 Niagara Fatls, N. Y. (Carborundum Co.) LE BELL, Rolf Casimir Pargas Kalkbergs Aktiebolag ABO Kakelfabrik Slottsgatan 52, ABO, Finland LEBERKNIGHT, C. E. (GF) Kopp Glass, Inc. Box 8255, Pittsburgh 18, Pa. LeBLANC, John R. Box 807, Alfred, N. Y. LEBRUN, Paul Ideal-Standard, S. A. Vilvorde, Belgium LEDBETTER, George R. R. R. 2, Box 303, Rolla, Mo. LEDDY, Robert M. (SI) Box 128, Hammonton, N. J. (Alliance Gay Product Co.) LEDLOW, Forrest L. (W) Aztec Ceramics, Inc., Box 337 San Antonio, Texas LEE CLAY PRODUCTS CO., INC. (Martin S. Bowne) Gearfield, Ky. LEE, Don W. 20 Westgate, Cambridge 39, Mass. LEE, Harley C. (RF) Basic, Inc., 845 Hanna Bldg. Cleveland 15, Ohio LEE. James A. ( S) Southern Brick & Tile Mfgrs. Assn. 230 Spring St., N. W., Atlanta 3, Ga. LEE, P. William (BI) 205 Elmwood Blvd., York, Pa. (Dentist's Supply Co. of New York) LEECH, L. G. H. & G. Thynne, Ltd. Victoria Tile Works Holmer, Hereford, England LEES, Arch A. (R) 411 Avon Dr., Pittsburgh 16, Pa. (Carborundum Co.) LEFFORGE. John W. (B) 39 Highland Ave. Lynnfield Center, Mass. (Emerson & Cuming. Inc.) LEFORT, Henry G., Jr. (I) 411 Fairlawn Dr., Urbana, III. LE HERON, Harold Etablissements Porcher Usines de Revin, Ardennes, France LEIBIG, Edward C. (R) Corning Glass Works, Corning, N. Y. LEIBSON, J. S. (WH) Insulator Dept., General Electric Co. S. Charles & Cromwell Sts. Baltimore 3, Md. LEIPOLD, Martin H., Jr. 95 E. 12th Ave., Columbus 10, Ohio R oster 05 TSER, Craig F. 8344 30th N. W,, Seattle 7, Wash. ISEY. William B. (G) 615 Elm Ave., Muhlenberg Park Reading, Pa. (W estern Electric Co.) LITTEN, Carl F. (R) SJ^dawkins Ave., Hamburg, X. Y. Itro Refractories ^^_Jrasives Corp.) IL^?TD, John A. (E) 12001 Weatherby Rd. Los Alamitos, Calif. (Douglas Aircraft Co.) EMMERMAN, Paul C. (R) E. I. du Pont de Nemours & Co., Inc. Grasselli Chemicals Dept. 1321 National City Bank Bldg. Cleveland 14, Ohio eMUNYON, James S. (E) Tappan Stove Co., 250 Wayne St. Mansfield, Ohio ENCHNER, Theodore (D F) 5158 Beeler St., Pittsburgh 17, Pa. (Vitro Manufacturing Co.) .EXXON, A. G. (Wr) . Canadian Potteries Ltd. 360 Blvd. du Sminaire St. Johns, Que., Canada -ENNON, John W. (W I) Battelle Memorial Institute 505 King Ave., Columbus, Ohio -ENTZ, Clarence J. (R) Quebec Iron & Titanium Corp. Box 40, Sorcl, Que., Canada -EONARD, Jean (M) 96-24 Corona Ave., Corona 68, N. Y. (Jean Leonard Ceramics) LEOPOLD, Jean H. Leopold & Cie. Pfaffenhoflfen, (Bas-Rin), France LEO-WOLF, A. L. (M) Carborundum Co., Globar Div. Niagara Falls, N. Y. L- Et FPIiEt ,, iMyron P. -18 Tiravis Dr., Chestnut Hill 67, Mass. # {E, Donald A. ' Bridge St., Roselle Park, N. J. leW ; Jj-a. ck M. (S) 1357 Nicholas PI., Ashland, Ky. (Carlyle Tile Co.) LERMAN, Leon (B) Sylvania Electric Products, Inc. 100 Sylvan Rd., W oburn, Mass. LESAR, Albert R. (R I) 509 Woodlawn, Mexico, Mo. (A. P. Green Fire Brick Co.) LESENSKY, Leonard "(B) Raytheon M anufacturing Co. Foundry Ave., W altham 54, Mass. L ESLIE, Ernest R. (R) Norton Co., W orcester 6, Mass. LESSO, Harold F. (R) 631 Beechmont Dr. Dearborn Hills, Mich. (Great Lakes Steel Corp.) LESTER, Ronald H. (W JI) 3811 Garrison Blvd., Baltimore 15, Md. (General Electric Co.) LESTER, W. Ronald (GF) Hartford-Empire Co. Div. Em hart Mfg. Co. Hartford 2, Conn. LESZL, Matthias ``Smalteria e Metallurgica. Veneta" Bassano del Grappa, Italy LETORT, Marc Yves Centre National d'Etudes et Recherches Cramiques 3 Avenue Paul Doumer Paris 16, France LETTER, Eugene C. (BJ) Bausch & Lomb Optical Co. Chemical Res. Lab. Rochester 2, N. Y. EXGOOD, William C. (G) Ball Brothers Co.. Inc.. Muncie, lud. LEVETT, Peter D. (W) Arnold Engineering Co., Marengo, 111. Vol. :{(). No. 10 ( 1957) LEVI, Ormonde S. (G) Verd-A-Ray Corp. 615 Front St., Toledo 5, Ohio LEVIN, Ernest M. (B) National Bureau of Standards Div. 9.3, W ashington 25, D. C. LEVIN, I. (M) L & L Manufacturing"Co. 136 Eighth St. Upland, Chester, Pa. LEV IN E, Irving L. (M) 100 Elm Tree Lane. Syracuse 9, N. Y. (General Electric Co.) LEVY, Dorothy (D) 1212 Lincoln Ave.,` Highland Park, 111. LEVY, Raymond H. (R) 5501 Lynview A\e.. Baltimore 15, Md. (M artin Co.) LEW IS, Albert D. (G) Kimble Glass Co.. Vineland, N. J. LEW IS, George T. R. R. 1, Rushville. X. Y. LEWIS. Gordon (BJ) ` Carborundum Co. Research & Development Div. Niagara Falls, X. Y. LEWIS, Gordon E. (SI) Glen-Gery Shale Brick Corp. Box 86, Shillington, Pa. LEWIS, J. H. (G) Blue Ridge Glass Corp. Kingsport, Tenn. LEW IS, J. M. (W ) Abingdon Potteries, Inc. 801 N. Main St., Abingdon, 111. LEW IS, John W., Jr. (R) Dixie Fire Brick Co., Kimberly, Ala. LEW IS, William C. (G) Big Flats, N. Y. (Corning Glass Works) LEWIS, William N. (G) I-T-E Circuit Breaker Co. 601 E. Erie Ave., Philadelphia 34, Pa. LIBBEY-OWENS-FORD GLASS CO. (George B. Watkins) 1701 E. Broadway Toledo 5, Ohio LIBERATORE, Laurence C. (G) Taylor Instrument Co. 95 Ames St., Rochester 1, N. Y. LIBERTY GLASS CO. (Frank P. Collins) Collins Bldg., Sapulpa, Okla. LIED, Robert C. (B) Argonne National Lab. Box 299, Lemont, 111. LIEDER, Phillip H. (R) 2600 Dogwood Lane, Norristown, Pa. (E. J. Lavino & Co.) LIEDERBACH, William H. (W I) 202 Prospect Ave., Pewaukee, Wise. (Globe-Union Inc.) LIGON, Elmer R. (SI) W. S. Dickey Clay Mfg. Co. Box 402, Pittsburg, Kans. LILLIE, Howard R. (GF) 191 Delevan Ave., Corning, N. Y. (Corning Glass Works) LIM, Richard H. Y. Box 1039, Alfred, N. Y. LIM, Yock Lio Box 2004, Ann Arbor, Mich. LIMES, Robert W. (RFI) Allegheny Ludlum Steel Corp. Brackenridge, Pa. LIN . Francis C. M. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. 319 S. Main St., W ashington, Pa. L1NDENTHAL, James R. Globe-Union Inc., 900 E. Keefe Ave. Milwaukee 1, Wise. L1NDENTHAL, John W. (G) Ohio State University Engineering Experiment Sta. Columbus 10, Ohio LINDQUIST, C. Alan. Jr. (B I) Box 618, Conneaut, Ohio (Astatic Corp.) LINDROTH, Stig A. Svenska Ackumulator AB. Jungner Oskarshamn, Sweden LINDSAY, Carey E. (RI) Niles Fire Brick Div. Mexico Refractories Co. 165 E. Park Ave., Niles, Ohio LINDSAY, J. Gordon (B) Aluminium Labs. Ltd. Arvida, Que., Canada LINDSEY, Ben S. (W) Milwhite Co.. Inc. Box 15038, Houston 20, Texas LINKHORX, William H. (W) Ventura Dr., Danielson, Conn. (American Radiator & Standard Sanitarv Corp.) LIN NELL, Robert H. (B) Titanium Zirconium Co. Flemington, X. J. LINSEIS, Max Selb/Bay Gerhard-Hauptmannweg 9, Germany LINTZ, E. H. (W FI) 42 Heiskell Ave., Wheeling, W. Va. (Wheeling Tile Co.) LINWOOD, Sidney H. (W) Stackpole Carbon Co., St. Marys, Pa. LINZ, Arthur (E) 551 Fifth Ave., New York 17, N. Y. (Consultant) LISKE. Jack 2 103(4 Carrol Dr., Raleigh, N. C. LITEN, Alexander F. (G) 178 Norfolk Ave., Swampscott, Mass. (Sylvania Electric Products, Inc.) LITHIUM CORP. OF AMERICA, INC. (Walter M. Fenton) 2560 Rand Tower Minneapolis 2, Minn. LITTLE, John M. (S) 120 S. 28th Ave., Hattiesburg, Miss. (Hattiesburg Brick Co.) LITTLETON, Joseph C. (G) 231 Delevan Ave., Coming, N. Y. (Coming Glass Works) LITTLETON, J. T. (Honorary, GF) Coming Glass Works, Coming, N. Y. LIVINGSTON, Charles Q. (R) Armstrong Cork Co., Lancaster, Pa. LIVOVICH, Andrew F. (R) 337 N. Virginia Ave., Hobart, Ind. (Universal Atlas Cement Co.) L & L MANUFACTURING CO. (I. Levin) 136 Eighth St. Upland, Chester, Pa. LLOYD, Katherine (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland, Calif. LO, Wing-Cheuk 21 Hardenberg St. New Brunswick, N. J. LOBAUGH, Frank E. (RI) 1052 Sherman Ave., Plainfield, N. J. (Universal Atlas Cement Co.) LOBDELL, Edward M. (G) 2627 Gunckel Blvd., Toledo 6, Ohio (Owens-Illinois Technical Center) LOCHRIDGE, James F. (E) Ferro Enamel de Mexico, S. A. 450 Oriente 171, Mexico 14, D. F. LOCKE. Ralph S. (M) Diamond Springs Lime Co. Box 409, Diamond Springs, Calif. LOEFFERT. George .1. (G) United Can d: Glass Co. Box 90. Hayward. Calif. LOEHRKE, Harry F. (G) 4234 Beverly Dr., Toledo, Ohio (Owens-Illinois Technical Center) LOGAN CLAY PRODUCTS CO. (Barton A. Holl) Box 698 Logan, Ohio LOH. Eugene (B) 815 W. Sacramento St. Altadena, Calif. (Consolidated Electrodynamic Corp.) LONDEREE, Joseph W., Jr. (B) 3918 Warner Ave., Louisville, Ky. (Corhart Refractories Co.) R oster 07 ONG, Bernard Glaces de Boussois 22, Boulevard Malesherbes Paris 8, France .OXG, John V. (Gj Solar Aircraft Co. 2200 Pacific Highway Diego 12, Calif. Cj^^^ft.uther L. (G) ^H P^S'C orning Fiberglas Corp. Case Ave., Newark, Ohio -OXG, Robert, Sr. (E) American Porcelain Enamel Co. 1285 E. Keating Ave. Muskegon 36, Mich. -ONG, Robert R. (\V) National Tile & Mfg. Co. 1200 E. 26th St., Anderson, Ind. -QNG, Russell E. (RI) American Encaustic Tiling Co. lunn Cannon Ave.. Lansdale. Pa. .OXG. Wayne M. i\V) S\racuse China Corp. J'ulu Court St.. Svracuse, X. V. -OXGEXKCKEK. Robert J. (M I) 46 James Rd., Broomall, Pa. (Foote Mineral Co.) -ONGFRITZ. Robert K. (R I) Clearfield Clav Products Co. Box 748. Clearfield. Pa. LONGIXO, Ted E. (M) American Clay Forming Co. E. Duncan St., Tvler, Texas LONGWELL, B urton'(E) Republic Steel Corp. 1420 Republic Bldg.. Cleveland 1, Ohio LOOMIS. David G. (M) Loomis Engineering & Mfg. Co. R. R. 46. Caldwell. X. J. LOREY, Frederick D. (GI) R. R. 1, Hickling Heights Corning, N. Y. (Corning Glass Works) LOREY, G. Edwin (B) Dept., of Ceramic Engineering ^ l O [toi ol of Mines & Metallurgy Mo. W Alfred G. (B) 7 Piaterson Ave., Paterson, X7. J. (Kearfott Co., Inc.) LOUDEN, R. H. (WI) McGean Chemical Co. Midland Bldg., 101 Prospect Ave. N. \Y. Cleveland 15. Ohio LOUGHRIDGE, Frederick A. (G) 19 Kosciusko St.. Peabody. Mass. (Svlvania Electric Products. Inc.) LOUTHAN MANUFACTURING CO. (Fred A. Layne) Box 781 East Liverpool, Ohio LOVE, L. G. (G) National I^ime & Stone Co. First National Bldg.. Findlay, Ohio LOVELAND. Edward W. (M) 504 79th St.. North Bergen, X. J. (Preferred Plastics. Inc.) LOVELL, George H. B. Silwood Ceramics. Box 152 Bergvlei, Johannesburg, South Africa LOVENBACH. J. Glaceries de Saint Roch S. A. 50, rue du Luxembourg Brussels. Belgium LOVETTE. Paul V.. Jr. (R) R.R. 1. Painted Post, X. Y. (Corning Glass Works) LOWE. Earl C. (SI) Box 46, Logan. Ohio (Straitsville Brick Co.) LOWE. Edwin C. (R) 405 Sarah St.. Chippawa, Ont., Canada ( Norton Co ) LOWE, George K. (RI) ^ ^ B arles Taylor Sons Co. ^^^Bights-Rockefeller Bldg., Rm. 210 ^^Wayfield at Lee, Cleveland 18, Ohio LOWE, William S. (R) A. P. Green Fire Brick Co. 1018 E. Breckenridge St., Mexico, Mo. Vo l. No. 10 ( 10.">7) LOWER, Clarence G. (Si New Bethlehem Tile Co. 311 Lafayette St., New Bethlehem, Pa LOW ER. David H. Box 208. Alfred, X. Y. LOWER, Lloyd C. (S) 227 Washington St. * New Bethlehem, Pa. (New Bethlehem Tile Co.) LOWER. Lloyd, Jr. (SJ) New Bethlehem Tile Co. New Bethlehem, Pa. LOWRAXCE, Robert T. (W) Jackson Tile Manufacturing Co. Box 2006. Jackson. Miss. LOZANO. Jaime (G) Yidriera Monterrey. S. A. Colombia No. 266 Momerrev. X. L.. Mexico LI'BALIN'. Irwin iR) British Industrie* Corp. 80 Sh o re Rd.. P o rt W a s h i n g t o n . X Y LUCAS, Howard R. (G> Owens-Illinois Technical Center 1700 X. Westwood Ave. Toledo 7, Ohio LUCAS, Joseph M. (W) 1431 Broad Blvd. Cuyahoga Falls, Ohio (U. S. Stoneware Co.) LUCEK. John R. (M) 51 Bushey Rd., Pittsfield, Mass. (General Electric Co.) LUCIER. Arthur E. 704 Runnvmede Rd., Raleigh, X. C. LlFDOWICI, Johann W. Carl Ludowici K.a.A. Co. Jockgrim Rheinnfalz. West-Germanv LUDWIG. David \V. (GI) Pittsburgh Plate Glass Co. One Gateway Center Pittsburgh 22. Pa. LUDWIG. Urban W. (G) 232 Peach Orchard. Dayton 9. Ohio (Univis Lens) LUEDERS. Roland (M) 3241 Bradford Rd. Cleveland Heights 18, Ohio (Ferro Corp.) LUHRS. Millen E. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadwav, Toledo, Ohio LUKS. Daniel W. (W I) Star Porcelain Co. Muirhead Ave.. Trenton 9. N. J. LULL, Stanley E. (RI) 83-8 Park Ave.. Worcester 5, Mas*. (Bav State Abrasive Products Co.) LUX'AK. Thomas E. (W I) Globe-Union Inc.. Centralab Div. 900 E. Keefe Ave.. Milwaukee 1. Wise. LUND. H. Howard (S) 44 S. Elmwood Ave.. Palatine. Til. (Armour Research Foundation) LUND. L. Howard (S) 254 South St.. East Palestine, Ohio (Central Commercial Co.) LUND. Melvin S (M> 426 E. State St.. Alliance, Ohio (General Color & Chemical Co.. Tue.) LUND. Randolph A. (RJ) 1717 W. 105th St.. Chicago 43. III. (United States Steel Corp.) LU X DE. Marvin 245 E Third St., Watsonville. Calif LUSHER, Gerald H. (R) Norton Co., 5905 Pacific Blvd. Huntington Park, Calif. LUX. John H. (R) Haveg Industries, Inc. 900 Greenbank Rd. Wilmington 8. Del. LYLE, Aaron K. (GF) 21 Cumberland Rd. West Hartford 7, Conn. (Hartford Empire Co., Div. Emhart Mfg. Co.) LYMAN. Donald R. 302 Cherry St.. Clearfield. Pa. LYNCH. Eugene D. (.W) University of Illinois Dept, of Ceramic Engineering 204 Ceramics Bldg., Urbana, 111. LYNCH, James F (R) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio . LYNCH. John F. (\Y) 1U26 Washington Blvd.. Oak Park, III. <Limlberg Engineering Co.' LYXSAVAGE. Walter F. (G ' 210 Arnold Ave., Port Allegany, Pa. i Pittsburgh Corning Corp.) L \ ON. John B (Si Acme Brick Co., Denton, Texas LYON. Kenneth C. (GF) 557 E Washington St , Dunkirk. Ind. i Ball Brothers Co. Inc.) LYONS. Clifford T. (W) ()S25 Bowman Blvd., DalLi- 20. Texas (Trinitv Ceramic Supph C> LYONS. S. C. (M) Georgia Kaolin Co. Drv Branch. Ga. LYTLE, Jack A. (BI) 308 E. Green Tree Rd Milwaukee 17, Wise. <Allen-Bradlev Co.) LYTLE. W. O. (G) Pittsburgh Plate Glass Co Research Lab., Creighton. Pa. I.YTTLE. Frobisher T. (W) 1031 Findley Ave.. Zanesville. Ohio (Mosaic Tile Co.) Me McADOO. D. Parker (M) T. M. Huber Corp. 100 Park Ave., New* York. X. McALLISTER, Christopher (GI) Box 281, Clarksburg, W. Va. (Pittsburgh Plate Glass Co.) McALPIXE. Kenneth B. (G) General Electric Co., Large Lamp Dept. Incandescent Lamp Advance Engr. ~436 Xela Park, Cleveland 12, Ohio McASKILL, James I. (W) 311 King St. W. Kingston. Ont., Canada (Frontenac Floor & Wall Tile Co. Ltd.) McAULEY. James W. (G) 2334 Sherwood Rd., Toledo, Ohio (Libbev-Owens-Ford Glass Co.) McBRAYER, Robert D. Box 4276. State College Sta. Raleigh. X. C. McBRF.EX. Kenneth L. (W) Box 1866. Richmond. Calif. ( American--S ta n d a r d ) McBURNEY, John W. (SF) 1543 N. Falkland Ln. Silver Spring, Md. (Consultant) McBURNEY. William C. (D) R .R . 5. Eastbrook Rd.. New Castle, Pa. (Shenango China, Inc.) McCMV, Kenneth B. (R) Wilbur B. Driver Co. 1875 McCarter Hwy., Newark 4, N. J. McCAMMON. James W. (M) Dent, of Mines, Parliament Bldgs. Victoria. B. C.. Canada McCAXN. D M. (W I) Akron Porcelain Co.. Akron 14. Ohio McCANX. Sidney W. (E l) Pfaudler Co. 1000 West Ave., Rochester 3. N. Y. McCARTT. Kenneth C. (W) 1408 Delaware Ave.. New Catle, Pa. (Universal-Rundle Corp ) M cC LU X . Louis R. (S) Box 72. Palmer. Texas ( Barn .n Brick Co.) McCLAYE. James W. (SI) Box 508. Toronto, Ohio ( Peerless Clav Corp.) McCl e l l a n d . Roland h . ( w n Globe-Union Inc.. Centralab Div. 00 E Keefe Ave., Milwaukee. Wise. R o ster i>9 cCLURE. Lt. Clifton M. (RJ) Box 99, Bryan Air Force Base Brvan, Texas eCOLLOM, Perry C. (RI) American Refractories & Crucible Corp., North Haven, Conn. cCOXAUGHA, Wayne H. (S) Corp., Box 1656 ^ ^ ^ ftC a n to n 50. Ohio ,cB | ^ 'E L L , G. F. <\Y) Mosaic Tile Co., Zanesville, Ohio cCORMACK, James S. iRJ) Corning Glass Works Refractories Div. Corning. X. V. cCORMACK, Kenneth J. !G) 717 Colima Dr.. Toledo o, Ohio (Owens-Illinois Technical Centerl icGORMICK, John M. i G) .1827 Richards Rd . Toledo 7, Ohio (Xaniloa Corp.) IcCORMICK, Stewart W. (RI) Corhart Refractories Co. 1600 W. Lee St., Louisville, Ky. IcCOY, Xelson (W) Nelson McCoy Pottery Co. Roseville. Ohio dcCOY, NELSON, POTTERY CO. (Nelson McCoy) Roseville, Ohio IcCREERY. George L. (W) 393 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) IcCRElGHT, Louis R. (R) General Electric Co. 3198 Chestnut St., Philadelphia, Pa. IcCULLOUGH, James D. (R) Babcock & Wilcox Co. 161 E. 42nd St., New York 17, N. Y. vIcCUNE, Samuel E. (R) United States Steel Corp. Gary Works Res. Lab. 991, Gary, Ind. VicDANEL, Donald W. (W) McDanel Refractory Porcelain Co. 510 Ninth Ave., Beaver Falls, Pa. VtcDANEL, Melvin W. (W ) 2, Eastvale Rd. ter Falls, Pa. Dane! Refractory Porcelain Co.) McDANEL, Sumner W. (BJ) R. R. 2, Beaver Falls, Pa. (McDanel Refractory Porcelain Co.) McDANIEL, L. L. (R) Phelps Dodge Corp. Morenci Branch, Morenci, Ariz. McDERMOTT, James J., Jr. (G) 136 William St.. New York 38, X. Y. (Consultant) McD o n a l d , c . h . (S> West Bros. Brick Co. 6600 Sheriff Rd., N. E. Washington 27, D. C. McDo n a l d , e . f . (E i) Ingram-Richardson Mfg. Co. Beaver Falls, Pa. McDo n a l d , Howard A. (R) 12202 E. 19th Ave., Spokane 64, Wash. (Kaiser Aluminum & Chemical Corp.) McDOUGAL, Taine G. (W FI) 1117 South Dr., Flint 3, Mich, and Ha'penny House Somerset Bridge, Bermuda McDOWALL, Ian C. New Zealand Pottery & Ceramic Research Assn., Inc. Private Bag, Lower Hutt, New Zealand McDOWELL, J. Spotts (R F) Webster Hall Hotel 4415 Fifth Ave., Pittsburgh 13, Pa. I Harbison-Walker Refractories Co l McDOWELL, Samuel J. (BFI) 52 Elm Ave., Metuchen, N. J. (American Lava Corp.) l^ f e R O Y , R. H. (MI) ^^ H lern atio n al Clay Machinery Co. ^ ^ W l5 Bolander Ave., Dayton 1, Ohio McEVOY, Robert J. (RI) 2234 Berdan, Toledo 13, Ohio (Owens-Coming Fiberglas Corp.) V o l . '3f, No. 10 (W7) McGEAN, Ralph L. (E) Midland Bldg., 101 Prospect Ave., N.W. Cleveland 15, Ohio (McGean Chemical Co.) McGEE, Thomas D. (R) Iowa State College Ceramic Engineering Dept., Ames, Iowa McGi n n i s , r . a . (W ) " American Lava Corp. Cherokee Blvd. & Mfgrs. Rd. Chattanooga 5, Tenn. McGOHAN, G. William (El Armco Steel Corp., Middletown, Ohio McGOLPIN, William C. (S) Rm. 403, 57 Bloor St., W. Toronto 5, Ont., Canada (Natco Clav Products, Ltd.) McGRAW, Delford A. (G) 4117 Graceway, Toledo 6, Ohio ( Owens-Illinois) McGREGOR, Frederick B. (M) Great Lakes Foundry. Sand Co. 720 United Artists Bldg. Detroit 26, Mich. McGREGOR. Jimmie R. 1604 X. W. Third Ave. Mineral Wells, Texas McHOSE, Donald G. (M) Such Clay Co., Box 47 Perth Amboy, N. J. McHOSE, M. M., Jr. (M) Such Clay Co., Box 47 Perth Amboy, N. J. M cILW AIN, Eugene M. (R) 3513 Huron Dr.. Louisville, Ky. (Corning Glass W orks) McINTOSH, C. M. (W ) Radio Materials Corp. 1708 W. Belmont Ave., Chicago 13, 111. McINTOSH, Harold W. (G) American Window Glass Co. Farmers Bank Bldg., 20th Floor Pittsburgh 22, Pa. McINTYRE, G. H. (E F I) National Spectrographic Labs., Inc. 6300 Euclid Ave., Cleveland 3, Ohio McKAlG, W. Wallace (R) Cumberland Steel Co. Box 28, Cumberland, Md. McKANE, John W. (R) 257 Chesterfield Ave. Glen Ellvn, 111. (Foremost Foundry Supply Co.) McKEAND, Irvin J. (W I) Minneapolis-Honeywell Regulator Co. Research Center 500 Washington Ave. S. Hopkins, Minn. McKEE, William D.. Jr. (B) 1017 Ridge Rd., Lewiston, N. Y. (Carborundum Co.) McKEEN, Richard D. (W I) Sweet Fll Rd.. Plaistow, N. H. (Western Electric Co.) McKEOWN, J. Duncan (R) Box 137 Burnet Woods Station Cincinnati 20, Ohio (Carborundum Co.) McKEOWN, Thomas H. (M) 284 Middlesex Ave., Metuchen, N. J. (E. I. du Pont dc Nemours & CoA McKTXLEY, Robert F. Box 295, Alfred, X. Y. McKINXEY, Harold G. 750 Fowler St., N. W., Atlanta, Ga. McKINNIE, J. R. (R) Ideal Chemical Products, Inc. 3813 Hoke Ave., Culver City, Calif McKINNIS, Charles L. (GI) Owens-Coming Fiberglas Corp. Glass Res. Lab., Newark, Ohio McKULLA, George W., Jr. 4711 17th N. E., Seattle 5, Wash. McLACHLAX, Eugene K. (R) 462 Southmont Blvd., Johnston, Pa. (Bethlehem Steel Co.) McLAIN WORKS. REFR. DIV. H. K. PO RTER CO., INC. Lawson E. Mason) Wellsville. Ohio McLAREN, Henry D. (E) Ferro Enamels (Canada) Ltd. Box 37, Oakville, Ont., Canada McLAREN, John (M) Box 75, East Liverpool, Ohio (Bell Research Labs.) McLAREN, Malcolm G. ( R) Paper Makers Im porting Co. 44 S. Second St., Easton, Pa. McLa u g h l i n , John l . (E) 564 S. Craig Pi., Lombard, 111. _ (Allied Porcenell Inc.) McLa u g h l i n . Joseph k . twi.> Red Wing Potterie., Inc. Red Wing, Minn. McLaughlin, wiiiiam h . (R) Alsey Brick & Tile Co., Alsev, 111. McLEAX. William E. ( B) Electra Manufacturing Co. 800 X. 21st. Independence. Kans. McMAHOX, John F. (XFI) Alfred, N. Y. (State University of New York College of Ceramics, at Alfred Univ.) McMAHOX. John F., Jr. (G) 645 S. Cannon Ave., Lansdale, Pa. I Lansdale Tube Co.) McMASTER, Harold A. (G) Permaglass, Inc., Box 195, Sta. A. Toledo 5, Ohio McMULLEX, John C (R) 9325 Rivershore Dr. Niagara Falls, N. Y. (Carborundum Co.) McMURDIE, Howard F. (BF) National Bureau of Standards Washington 25, D. C. McMURTRY, Carl H. (RJI) 72 Maple Ave., Wellsville, N. Y. (State University of New York, College of Ceramics) McNAMARA, E. P. (W FI) 73 Ritchie Ave., Cincinnati 15, Ohio (Cambridge Tile Mfg. Co.) McXAMARA, Edward P.. Jr. (RJ) Box 907, Alfred. X. Y. (Corning Glass W orks) McNAMARA. Richard B. (R) II Janet St.. Buffalo 15. X. Y. (Electro Refractories & Abrasives Corp.) McNAUGHTOX, Ronald R. (R) Central Technical Library Consolidated Mining & Smelting Co. of Canada, Ltd., Trail. B. C., Canada McQUARRIE. Malcolm C. (B) 124 E. Lytle Ave.. State College. Pa. (Pennsylvania State University) McRITCHIE, Frank H. (R) Mellon Institute, 4400 Fifth Ave. Pittsburgh, Pa. McRORY, Glenn L. (M) New Jersey Zinc Co. 1007 National City Bank Bldg. Cleveland 14, Ohio McTAGGART. Cl. Don (R) Corning Glass Works, Corning, N. Y. McVAY, T. N. (BFI) 10 Oakwood Court, Tuscaloosa, Ala. (U. S. Bureau of Mine) MeWALTER. H. G. (R) Laclede-Christy Works, Refr. Div. H. K. Porter Co., Inc. 2000 Hampton Ave., St. Louis 10. Mo. McWILLIAMS. Robert J. (E l) Pfaudler Co. (Elyria Div.) Taylor St., Elyria, Ohio M MacALPINE, William M. (G) 357 E. Main St.. Somerville, N. J. (Johns-Manville Research Laboratory) MacAYOY. Thomas C. (G) 234 Chemung St.. Corning, X. Y. (Corning Glass Works) MACCALOUS, Joseph W. 4855 University Ct. Niagara Falls, X. Y. R o st e r 71 acDONALD, James E. (R) McFeely Brick Div. ' General Refractories Co., Latrobe, Pa. acDONALD, R. \V. tW I) Florida Tile Industries, Inc. Box 451, Lakeland, Fla. 1 ACER, W. E. (M) ' ^xborundum Co., Globar Div. ^ B a r a Falls, N. Y. taW^P^lON, Richard John G. Stein & Co., Ltd. Manuel Works Xr. Linlithgow, Scotland IACHLAX, G. R. (G) Owens-Corning Fiberglas Corp. Xewark. Ohio lacINTYRE, Donald J. (W) R.R., Piffard, N. Y. (Lapp Insulator Co., Inc.) .IACKASEK, Edward (EF) 1722 19th St., N. W., Apt. 702 Washington 9, D. C. (Porcelain Enamel Institute) MACKENZIE, James United Steel Companies Ltd. Research & Development Dept. Swinden House, Moorgate Rotherham. England MACKLIN CO. (Richard O. Lane) 2917 Wildwood Ave., Jackson, Mich. MacLEOD, John United Fireclay Products, Ltd. 140 W. George St. Glasgow, C. 2., Scotland MacNEIL, S. Ambrose Demerara Bauxite Co., Ltd. Mackenzie, British Guiana MacRAE, Alexander J. (M) Bowers Battery & Spark Plug Co. Box 1262, Reading, Pa. MacRAE, John (G) Fiberglas Canada Ltd. Box 309, Guelph, Ont., Canada MAC ZURA, George (R) 3815 Highland Rd. st St. Louis, 111. Icoa Research Labs ) EN, Robert C. (B) 315 Pim St. Canada Sault Ste. Marie, Ont.,Ltd.) (Algoma Steel Corp., MADDOCK, A. M. (W) R. R-, W ashington Crossing, N. J. (American--Standard) MADSEN, Leif Egil Box 4208, Sandakervn 109/111 Oslo, Norway (A /S Den Norske'Slipeskivefabr.) MAGAZINE, Arnold L. (G) CBS-Hytron Corp. ,, 100 Endicott St., Danvers, Mass. MAGID, H. S. (W I) American Radiator & Standard Sanitary Corp., Box 907 Trenton 5, N. J. MAGLIOCCA, Theresa S. (G) Corning Glass Works, Corning. X. Y. MAGNUSON, V. E. (M) Western Feldspar Milling Co. Box 671, Salida, Colo. MAGOR, James K. (E) United States Steel Corp. Applied Res. Lab., Monroeville, Pa. MAGUIRE, Edward A,, Jr. 1335 E. Price St., Philadelphia 38, Pa. MAGUIRE, Samuel G,, Jr. (B) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. MAHIER, Lois W. (D) 4535 Harding Blvd. Baton Rouge 7, La. ^ ^ ( Southwestern Louisiana Institute) ^ j O N E Y , David L. (RJ) Burncoat St., W orcester, Mass. Norton Co.) MAHONEY, Frank B. (E) Richmond Radiator Co. Box 111, Metuchen, N. J. Vol. .30, No. 10 (li):>7) MA1SAC. George W. (S) MARTIN, Francis W. (G) Insulating Refractories Co.. Inc. 101 Hornby Dr., Painted Post, N. Y. Box 323. San Rafael, Calif. (Corning Glass Works) MA1TRA. Pranab K. MARTIN, James K. (M) University of Utah, 220 Mines Bldg. 1068 Helen Ave., Lancaster, Pa. Salt Lake Cite, Utah (Posev Iron Works, Inc.) MAJESKE, Joseph (G) MARTIN,' John R., Jr. (W) T. C. Wheaton Co., "Millville, N. J. Monongahela Power Co. MALM, Arthur T. (RI) 920 Charles St., Wellsburg, W. Ya. 233 Beverly Rd., Worcester 5, Mass. .MARTIN. Lang C.. Sr. (Sj (Norton Co.) Martin Brick Co. MALOOTIAX, Markay H. (B) Box 794, Coleman. Texas 405 Mohegan Ave., New London, Conn MARTIN, Leonard A. (W ) (U.S.N. Underwater Sound Lab.l Martin Ceramic Supply Co. MALVERN BRICK & T IL E CO. 8901 Rainier Ave., Seattle 8, Wash. (George B. Eyerly) MARTIN, Ralph H. (W I) Box 415, Malvern. Ark. Vernon Kilns MALYSIAK, Chester (G) 2310 E. 52nd St., Los Angeles 58. Calif. 1027 Hickory, Perrvsburg. Ohio MARTIN, Wesley G. (EF) (Owens-Illinois) 6054 N. Kent Ave. MANDEL, Charles J. (W I) Milwaukee 17, Wise. Willette Corp. of New Jersey (A. O. Smith Corp.) Codwise Ave. & Reed St. MARTINO, Paul D. (SJ) New Brunswick, N. J. Cannelton Sewer Pipe Co. MAXDLE, Richard M. (G) Cannelton, Ind. Davison Chemical Co. MARTIXSEX, Rodney E. (M) Box 488, Pompton Plains. X. J. Timken Roller Bearing Co. MANN, George H. (G) 1835 Dueber Ave., S. W. Lake Salubria, Bath, N. Y. Canton 6, Ohio (Coming Glass Works) MARTZ. Joseph A. (R) MANNING. Franklin K. (W) 535 Riverside Ave.. Wellsville. Ohio American Radiator & Standard (McLain Works. Refr. Div. Sanitary Corp., 6920 Franklin Ave. H. K. Porter Co.. Inc.) New Orleans 22, La. MARVEL, Irvin L. (R) MANNING. R. Douglas (D) Johns-Manville Corp. Harker Pottery Co. 742 Miners Bank Bldg. East Liverpool, Ohio Wilkes-Barre, Pa. MANOUSEK, Miloslav MARVIN, Charles G. Delnicka 27 Box 787, Alfred, N. Y. Praha VII, Czechoslovakia MARWAHA, Kidar N. MANRING, William H. (G) Burn & Co., Ltd. Calumite Co.. Box 151 Refractory & Ceramic Works Hamilton, Ohio Box 13, Jabalpur 1, India MANSFIELD SANITARY, INC. MARX, Le Roy J. (S) (Perry E. Draper) Perrysville, Ohio Denver Terra Cotta Co. MANZ, Oscar E. (B) 135 Tejon St.. Denver 23, Colo. Box 516, University Station MARYLAND GLASS CORP. Grand Forks, N. D. (L. C. Roche) 2147 Wicomico St. (University of North Dakota) Baltimore 30, Md. MARCH, Joseph W. (S) MASKILL, William Nova Scotia Technical College Webb Corbett, Ltd. Halifax. N. S.. Canada Coalboumhill Glass Works MARCUS, Leon (BI) Stourbridge. Worcester, England 5A Onondaga Pkv. Apts. MASON, Cecil R., Jr. Liverpool Rd.. Liverpool. X. Y. 879 Courtenay Dr., N. E. (General Electric Co.) Atlanta 6, Ga. MARCYN, Chester A. (E) MASON CITY BRICK & TIL E CO. 2302 S. Kensington Ave. (C. F. Garland) Mason Citv, Iowa Westchester, 111. MASON. Frank (W) ' (Chicago Vitreous Corp.) Thomas Works MARGOLIS, David (R) Delta-Star Electric Div. 39 Glenwood Ave., New Rochelle, N. Y. H. K. Porter Co.. Lisbon. Ohio (Fish-Schurman Corp.) MASON. Lawson E. (R) MARGRAVE, John L. (B) McLain Works. Refr. D i\. University of Wisconsin H. K. Porter Co., Inc. Dept, of Chemistry, Madison 6, Wise. Wellsville. Ohio MARK. Stanley D,, Jr. (R) MASSENGALE, Gordon B. (RI) 1592 Love Rd., Grand Island, N. Y. 553 Audubon Ave., Pittsburgh 34, Pa. (Carborundum C ol (Harbison-Walker Refractories Co.) MARLOW. James A. (W) MASSON, R. Crane Ltd.. Box 70 Porzellanfabrik Langenthal A. G. Montreal. Que.. Canada Langenthal, Switzerland MAROXEY. Dorothy M. MATCHULAT, John G. (R) Box 457, Alfred, X. Y. Buffalo Rd., R.R. 2 MARQUIS. John E. (WI East Aurora, N. Y. Pemco Corp.. Res. & Dev. Lab. (Electro Refractories & 5601 Eastern Ave., Baltimore 24. Md. Abrasives Corp.) MARSHALL, Darwin (B) MATEJCZYK, John F. (E) Electro Metallurgical Co. 7506 Trevanion Ave.. Pittsburgh 18, Pa. Metals Research Labs. (O. Hommel Co.) Box 580, Niagara Falls. N. Y. MATERIALI REFRATTARI MARSHALL. Leslie H. (R) SOC. P.AZIONI (I. Charles Mathon) L. H. Marshall Co. Via Elia Lombardini 13 Box 4857, Sta. B. Columbus 2, Ohio Milano 744. Italv MARTIN, Albert E. (M) MATHENY, Richard E. (S) Almar Specialty Machines Ltd. R.R. 7, Box 307, Birmingham, Ala. Maple, Ont., Canada (Natco Corp.) MARTIN. Clyde (W) MATHER, Mrs. Katharine (B) Clay-Burn Tile Co. Waterways Experiment Sta. Box 618. Palestine, Texas Drawer 2131, Jackson, Miss. R o s t e r 73 WW W to s i 1 ! ATHI AS, Simao Rua Fernandes Borges 544 i,Yila Paulista), Sao Paulo, Brazil ( Universidade de Sao Paulo) ATHIASEN, O. E. (S) Federal Seaboard Terra Cotta Curp. Box 301f<Perth Amboy, X. J. ATjAOESON, George VV. (G) Castlewood Dr., Toledo 13, Ohio ^ H R b le Glass Co.) ATHlESON, Roblin M. (R) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, X. Y. ATHIEU, Louis A. Parra Mantois, 11 Chemin de Ronde Le Vesinet (S&O) France ATHON, J. Charles Materiali Refrattari Soc. p.Azioni Via Elia Lombardini 13 Milano 744, Italy .'ATSOX, Frederick R. (GI) 723 Jackson St., State College, Pa. ( Pennsylvania State University) [ATTESOX, Gilbert D. (\V) Engineering Library Scintilla Div., Bendix Aviation Corp. Sidney, N. Y. IATTIMOE, Paul T. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio 1ATTISON, William F., Jr. (G I) R.R. 3, Lawson Dr., Madison, Conn. (Libbey-Owens-Ford Glass Co.) IAU( K. T. (S) Gaspro, Box 2454, Honolulu, Hawaii 1AUPIN, Addison (R I) 721 Yale Ave., Terrace Park, Ohio (Charles Taylor Sons Co.) I.AUPIX, Floyd M. (R) 327 Jefferson Rd.t Mexico. Mo. (A. P. Green Fire Brick Co.) 1AURER, James A. (E) 5519 N. Lake Dr., Milwaukee 11, Wise. vIAURER, Robert D. (G) Ci_ommiing Glass Works, Corning, N. Y. v jtih R . H. W. prsingel 68, Delft, Holland Byal Delftware Manufactory) vlAVOR, Wilfrid (E) Ferro Enamels (Canada) Ltd. Oakville, Ont., Canada viAXSOX, Elwyn L. (M) Box 55, Lawndale, Calif. AY, L. F. (S) Standard Ultramarine & Color Co. Huntington 18, W. Va. MAYER, Walter S. (W) Mayer China Co. Box 561, Beaver Falls, Pa. MAYFIELD, Manviile J. (W I) ,, 1827 Auburndale Ave. Chattanooga 5, Tenn. (American Lava Corp.) MAYNARD, Frederick H. (G) Corning Glass Works 1 Jackson St., Wellsboro, Pa. MAYS, George A. (S) Box 68, Niles, Calif. (California Pottery Co.) MEDERT, Warren C.' (GI) 5320 Melvin Dr., Toledo 14, Ohio (Owens-Illinois) MEEKA. Edward (SI) 1314',:' E Harvard St. Glendale 5, Calif. (Gladding, McBean & Co.) MEGLES, John E., Jr. (G) 7 Washington St., Box 148 Cokeburg, Pa. (Corning Glass Works) MEID. William J. (R) 1, Bartlett, 111. ^ ^ ^M n d b erg Engineering Co.) Gerald S. ^ w 2 8 Lorraine Dr. Salt Lake City, Utah M EIXDL. Joseph J. 601 W University, U rbana. 111. VOL. HI). N o . 10 (10.17) M E 1 X K E N , Robert H. (B) 29 Myrtle Ave. North Plainfield, N. J. (Bell Telephone Labs.) MEIRESONNE, Arthur C. (G) . 700 Village Dr., Columbus 14, Ohio (Kimble Glass Co.) ,, MELOY, C. L. (RI) Res. Dept., Rm. A406 Bethlehem Steel Co., Bethlehem. Pa MENG, Edwin R. (R) National Carbon Co. Box 6087, Cleveland 1, Ohio MENGSHOL, Clarence O. (E) American Radiator & Standard Sanitary Corp. 1089 Essex St., Richmond, Calif. M E N X 1E. A l a n J. 640 F u l t o n , Palo A l t o . C a l i f . M F . X T Z F . R . M e r l e .1. 406 E. S pringfield Ave. C h a m p a i g n , 111. - M E K B L F R , W allace (C l 56 W. Corydon St.. Bradford, Ta. ICorning Glass W orks) MERCER, James W. 3246 Lambeth Circle, Doraville, Ga. MERCK, Walter J. (RI) 25 Addison Dr., Short Hills, N. J. (Minnesota Mining & Mfg. Co.) M EREDITH. Edward J. (R I) Box 1533, Birmingham 1, Ala. (Universal Atlas Cement Co.) MEREDITH, Neil F. (RI) Box 281G, R.R. 2, Tiffin, Ohio (Basic, Inc.) MERIW ETHER, B. Corbin (W ) Deena Products Co., Arlington, Ky. MERLINI, Ing. Francesco Colonnata, Florence, Italy MERRIAM, Jack G. (W I) 727 N. Wildwood, Mundelein, 111. (Titanium Alloy Mfg. Div., National Lead Co.) MERRIMAN, Seth G. (G) 2722 Lincolnshire Blvd. Toledo 6, Ohio (Owens-Illinois, Kimble Div.) MERRITT, Clarence W. (W FI) Box 464, Alfred, N. Y. (State University of New York College of Ceramics, at Alfred Univ.) MERRITT, Lester M. (XI) 654 Wilson Ave., Columbus 5, Ohio (Industrial Commission of Ohio) MERRY, E. B., Jr. (SI) Merry Bros. Brick & Tile Co. 415 Masonic Bldg., Augusta, Ga. MERWIN, Byron W. (W) Parkway Rd., R. R. 2 East Liverpool, Ohio (Hall China Co.) MERZ, Kenneth M. R. R. 1, Niagara Pkv. Xiagara-on-the-Lake, Ont., Canada MESSIER, Donald R. Box 757, Alfred, N. Y. MESSIMER, Laverne A. (GI) Holophane Co., Newark, Ohio METAL & THERMIT CORP. (George C. Betz) 100 Park Ave. New York 17, N. Y. METZ, G. F. (M) 816 Cypress Rd., Vero Beach, Fla. (Consulting Engineer) METZ, Gilbert F.. Jr. 535 E. Ninth Ave., Tarentum, Pa. METZGER, A. J. (RI) Dept, of Ceramic Engineering Virginia Polytechnic Institute Blacksburg, Va. METZGER, H. C. (M) E. E. Zimmerman Co. 1704 Keenan Bldg., Pittsburgh 22, Pa. MEULI. Lt. William P. Wright Air Development Center High Temperature Materials Sect. W right-Patterson AFB, Ohio MEXICO REFRACTORIES CO. (C. A. Smith) Better Refractories Bldg. Mexico, Mo. MEYER, George W. (G) Glenshaw Glass Co., Inc. Glenshaw, Pa. M E Y E R , G. Robert (G) 313 Daniels St . Toledo 9, Ohio 1 Libbev-O v ens-Ford Glass Co.) MEYER, L. S. tS) Hydraulic-Press Brick Co. 705 Olive St., St. Louis 1, Mo. M E Y E R . W illiam W. (W i 6011 G e n e r a l D u f f Dr. Falls Church. Ya. ( U. S Tariff Commission! MEYERHOFER, E. A. ' Meyerhofer ft Co., Forchstrasse 2 Zurich 32, Switzerland MEYER-SCHOLER, Hans Carl Spitteierstrasse 1 Liestal, Switzerland (Tonwerk Lausen AG) M E Y S E L , John J. Refracton Ltd. Zurich 2 Genferstrasse, Zurich, Switzerland MICHAEL, Frank L. (E l) 319 Norboume Blvd., St. Matthews Louisville 7, Ky. (General Electric Co.) MICHAEL, Harold J. (E) 4446 St. Margarets Lane Columbus 13. Ohio (North American Aviation, Inc.) MICHALSKL Casmir (E) 3862 W. 31st St.. Cleveland 9, Ohio MICHEL, Howard (E) Porcelain Enamel, Inc. 80 S. Dover, Denver 15, Colo. MICHEL, S. Etablissements G. Devineau 26, rue Lafavette, Paris 9", France M ICHELOTTI, Joseph E. (E l) Alcoa Club, New Kensington, Pa. (Aluminum Co. of America) MICHENER, John William (G) Research Laboratory Owens-Coming Fiberglas Corp. Newark, Ohio MICKWITZ, Alexander von (B) 701 Main St., Latrobe, Pa. (Stupakoff Div., Carborundum Co.) MIDDLESWARTH, Earl T. (G) 7 Moody St.. Amesbury, Mass. (CBS-Hytron) MIDDLETON, George J. (M) L. H. Butcher Co. 3628 E. Olympic Blvd. Los A n g e le s 23, Calif. MIDGETTE, Willard B. (M) Eagle-Picher Co., Chemical Div. 1501 Oliver Bldg., Pittsburgh 22, Pa. MIKE, Thomas M. (GJ) Owens-Illinois Technical Center 1700 X. Westwood Ave. T o l e d o 7. Ohio MIKLOUCICH. Frank (S) Huntsville Brick & Tile Co.. Inc. Box 53. Huntsville, Ala. MILAXI, Helio 4216 Jennings Rd., Cleveland 9, Ohio MILDWOFF, Ben (G) Bent Glass Works, Inc. 85-25 126th St Richmond Hill 18, N. Y. MILLAR, N. S. C. Frit Factory Radiation Group Sales Ltd., Grappenhal Works Warrington. Lancs., England MILLER, Alan D. 542 E. 83rd St., Seattle, Wash. MILLER. Alan R. 3007 Nicol Ave., Oakland 2, Calif. MILLER. Ben K. (R) Miller Mining Co., Box 6, Mexico, Mo. MILLER, B. L. (W) Royal China, Inc., Sebring, Ohio MILLER, Boyd C. (S) Miller Equipment Co. Box 1566, Salisbury, N. C. R o s t e r i ) ER, Edmund H. (SI) me Brick Co., Milita]). Texas ER, E. R. (W) ashington Porcelain Co. illow St . Washington, N. J. ER, Fred W. (R) ranklin Manor, 114 Franklin St. Apt. B-2, Morristown, N. J. G^^^^widum Co.) ^ ^ ^ a n t E. (E l) erro Corp., 4150 E. 56th St. leveand 5, Ohio .ER, Harold (E) 726 N. Talinan Ave., Chicago 45, 111. Ohmite Mfg. Co.) .ER, Harold D. (M) 89 Circle Dr., Plandome Manor .ong Island, N. Y. B. F. Drakenfeld & Co., Inc.) -ER, Henry E. (R) Chicago Wheel & Mfg Co. 11)1 W . M o n r o e St.. C h i c a g o 4 ' 1. 111 LER. Howard L. (G li Libbev-Owens-Ford Glass Co. Box 4278. Charleston, W. Va. LER, James L. (R) 131 Peach St., Park Forest, Tit. (Norton Co.) LER, John B. (M l) Third St., Lewiston, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) .LER, John W. (W ) New Castle Refractories Co. New Castle, Pa. -LER, Lt. Marlin, Jr. <RJ) 02283709, Hdq. NACOM-- Finance & Acct. APO 757. New York. X. Y. LLER. Maurice. Jr. <M) 484 E. Beechwold Ave. Columbus 14, Ohio LLER, Ralph E. (G) 365 Glen Ave., Elmira, N. Y. (Corning Glass Works) L U ^ R o b e r t A. (GF) ^ ^ ^ E a rlis le St., Tarentum, Pa. ^ K R n irg h Plate Glass Co.) LLER. Russel A. (R l) 251 E. Rockland St. Philadelphia 20. Pa. {Lukens Steel Co. ) iLLER, R. W. (G) Columbia-Southern Chemical Corp. One Gateway Center. Pittsburgh 22, Pa. ILLER, Vincent P. (M) Miller Pottery Engineering Co. 2300 Palmer St. Swissvale, Pittsburgh 18, Pa. ILLER, W. D. (G) Owens-Illinois, Box 1019 ' Oakland 4, Calif. ILLER. William A. (R) Carborundum Co., Falconer, N. Y. ILLER. William A. 306 E. Madison St., Gihsonbtirg, Ohio ILLCAX, Kenneth L. (R) Aluminum Co. of America 230 Park Ave . New York 17. N. Y. ULL1GAN, Chester E. (R) Electro Refractories & Abrasives Corp 4814 Loma Vista Ave. Los Angeles, Calif. IILLIGAN, Lowell H. (B) Norton Company, One New Bond St Worcester 6, Mass. TILLTKEN, Edward C. (SI) 444 W. North Ave. East Palestine, Ohio (Natco Corp.) MILLIKEN, Frank H. (S) BD OoWwIerston Shale Co.. Bowerston, Ohio M J ^ k K E X . William M. pveland Museum of Art ^W 1155i0 East Bl\d.. Cleveland 6, Ohio M ILLIK EN . William L. fSJ) Box 23. Bowerston. O h io (V. S. Armv i Voi.. No. 10 ( MILLMAN, Nathan (M) MOHAXTV, Gajendra .Nata kli J. M. Huber Corp.. Huber, Ga. 6 Kalimati Rd., E.. Tatanagar, India MILLS. G. Alexander (B) ( Hindustan Steel Pvt. Ltd.) Houdry Process Corp., Box 427 MHL, Helmuth (W) Marcus Hook. Pa. Fabrica de Loza "La Favorita" S.A. MILLS. R. Gerald i B) Palina Norte 308, Despacho 312 Genera! Electric Co. Mexico 1, D. F. \'allecito> Atomic Lab. - MHLER. Neal F. iSI) Box 846. Pleasanton. Calif. Miller Equipment Co. MILTON BRICK CO., LTD. B o x 15(>h. S a l i s b u r y . X C. (D. T. Green) Box 554 MOHR. J. Gilbert O i l Milton, Ont., Canada 511 Erie St., Wumlville. Ohio M ILTON. H. C. (Mi (Allied Chemical & D \e Corp.) American Cyanamid Co. MOHR. William O iML) 30 Rockefeller Plaza.-New York, N. Y. Shenango China. Inc. MIXARD. Richard A. (B) Shenango Refr. I)iv., New Cattle. I'a Brooktield Engineering Labs.. Inc. MOHUN, William A. (R) 240 Cushing St.. Stoughton, Mass General Abrasive Co.. Inc. MIXER. Reginald K. iR) 2000 College Ave.. Niagara Falls. X. Y 215 W'oodbridge Ave.. Metucben. N J MOL. Evert A. iE) i Carborundum Co.) Rea Magnet Wire CL.. Inc MINK, John D. (G) E. Pontiac St.. Fort Wayne. 1ml. R. R. 2, Dunkirk. Ind. ` MOLLER, J. Aall (Armstrong Cork Co.) Porsgrunds ror^elaensfabrik MIXX1CK. L. John (R) Porsgrunn. Norway 306 Boyer Rd., Cheltenham, Pa. MOXACK. A. J. (G) ' (G. & W. H. Corson) 287 Mortimer Ave.. Rutherford. X. J. MINSHALL, John B. (R) (Newark College of Engineering) Kaiser Aluminum & Chemical Sales, Inc MONAGLE, William T. (R 3 Gateway Center, Pittsburgh 22, Pa. Lloyd Ave., Stanhope, N. J. MINTON, G. Z. (GI) (Reaction Motors, Inc.) Pittsburgh Plate Glass Co. MONETA, Fausto Research Lab., Creighton, Pa. Via Mambretti 9, Milano, Italy MISCERAMIC T IL E (R. E. H ornt herg) (Ditta Giuseppe Moneta) Box 1070, Cleveland, Miss. MONG, Lewis E. (R) MISSBACH. George E. (M) 8506 Loughborough PI. Morehouse Cowles, Inc. Chevy Chase 15, Md. 707 Henrv Grady Bldg., Atlanta. Ga. (National Bureau of Standards) M ISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) MONINGER, Richard E. (W) Harding Ave.. East Liverpool, Ohio 88 Angelica St., St. Louis 7, Mo. MITCHELL, Lane (B FI) School of Ceramic Engineering (Wellsville China Co.) MONKS, Douglas E. 133 Hillside Terrace, Irvington, N. J. Georgia Institute of Technology MONKS, J. R. (G) Atlanta. Ga. 4714 Harbord Dr.. Toledo 13, Ohio M ITCHELL. Russell G. (W) ( Owens-Illinois) R. R. 1, Dutch Ridge Rd. MONROE. G. DeVon (XJ) Beaver, Pa. 212 Alhambra Circle (McDanel Refractory Porcelain Co.) Coral Gables. Fla. MITOFF. Stephan P. (B) (Ford Motor Co.) General Electric Co., Res. Lab. MONROE. James E.. Jr. (Ml Metallurgy & Ceramics Dept. 4284 Doney St., Columbus 13. Ohio Box 1088. Schenectady, N. Y. (Titanium Alloy Mfg. Div. MITRA, H. K. (I) National Lead Co ) 12 A Road East MONTAGNO, Antonio M. (E) Jamshedpur E.R., India 69 Glenmont Ave.. Columbus 14, Ohio (Tata Tron & Steel Co.. Ltd.) (Inland Engineering Co.) MIXER. William G., Jr. (W ) MOXTEITH. Philip G. (E) 315 W. Lima St., Findlay, Ohio 4204 Dolphin Rd.. Louisville IS. Ky. (Radio Corp. of America) (Chicago Vitreous Corp.) MOCHEL, Mrs. Ellen Lunn (G) MOXTEMAYOR. Ponciano S. (G) Corning Glass Works, Corning, X. Y MOCHEL, John M. (B) Apartado Postal 1081 Monterrey. N. L.. Mexico 97 Hillcrest Dr., Painted Post, X Y. (Vidriera Monterrev. S. A.) (Corning Glass Works) MOCKRIX, Isadore (B) Pennsalt Chemicals Corp. Research & Development Div. Box 4388, Chestnut Hill P. O. MONTGOMERY. Earle T. (W FI) 12 W. Jeffrey Pk, Columbus 14. Ohio (Consulting Engineer) MONTGOMERY, Eldwin C. (GI) Libbey-Owens-Ford Glass Co. Philadelphia 18. Pa. Jewella Rd.. Shreveport. La. MOEBVS. C. R. (M) MONTGOMERY, Thomas B. (G) United Clay Mines Corp. Pittsburgh Plate Glass Co. 101 Oakland St., Trenton. X. I. 632 Ft. Duquesne Blvd. MOFFAT, John, Jr. (R) Pittsburgh 22. Pa. 12255 Miranda St. MONTGOMERY. Wayne C. (W) North Hollywood, Calif. Aluminum Co. of America (Gladding, McBean & Co.) 1501 Alcoa Bldg., Pittsburgh in. Pa. MOFFAT. John W., Jr. (R) MOODY. H. Leslie (D) Babcock & Wilcox Co. Hyalyn Porcelain, Inc., Box 460 2730 Koppers Bldg.. Pittsburgh 19, Pa. Hickory, N. C. MOFFETT, Robert A. (R I) MOODY, Willis E. (BI) North American Refractories Co School of Ceramic Engineering 1012 National City E. 6th Bldg Georgia Institute of Technology Cleveland 14, Ohio Atlanta. Ga. MOLTITT, Roy B. MOONEY. Edward L. (W) 206 Chamberlain St., Raleigh. N. C. General Laboratory Assoc., Inc. MOGEY, Leona (G) Norwich, N. Y. Raytheon Manufacturing Co. MOORE, Carleton B. 55 Chapel St.. Newton, Mass. 391 S. Wilson Ave., Pasadena. Calif. R oster 77 MOORE, Charles H. iB; P. R. Mallory & Co. 3029 E. Washington St. Indianapolis 6, Ind. MOORE, Dwight G. (EF1) Mineral Products Division Nrsational Bureau of Standards Washington 25, D. C. H. t. of Glass Technology niversitv of Sheffield Elmfield, Northumberland Rd. Sheffield 10, England MOORE, Henry (G) 38 Potter Ave. West New Brighton Staten Island, N. Y. (Metro Glass Co.) . MOORE, James M. (S) Ashe Brick Co., Van Wyck, S. C. MOORE, John G. (W) " 405 E. Poplar St., Robinson 2, 111. (Case Mfg. Corp.) MOORE. Matthew S. Pre-Fab. 241, Clemson College Clemson, S. C. MOORE & MUNGER (Murray Rushmore, Jr.) 33 Rector St. New York 6, N. Y. MOORE, Richard S. (RI) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. M O ORE. Robert E. 812 Orchard St., Rolla, Mo. MOORE, Robert F. (R) 3345 Forbes St., Pittsburgh 13, Pa. (Jones & Laughlin Steel Co.) M OORE, Robert G. Box 3794, Georgia Tech. Sta. Atlanta. Ga. MORAN, J. J. (G) Landis Ave. & Spring Rd. Vineland, N. J. (Kimble Glass Co.) MQRELL, N. L. (R) Union Bank Bldg., Bethlehem, Pa. L. Morell Co.) M ^ E N 'A , Alfred (W I) 6 Colby Ct., New Haven, Conn. (Electro-Ceramics, Inc.) MORESCO, Albert J. 336 Travis 476. Pittsburgh 36, Pa. MORGAN, John C.. Jr (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadwav. Toledo 5, Ohio MORGAN, John M. (AV) 42 Laurel Dr.. Scranton, Pa. (General Electric Co.) MORGAN, Raymond W. (R) R. W. Morgan Co., 11695 Woodbine ^Detroit 39, Mich. MORGAN, Reginald W. (G) Ball Brothers Co., Inc., Muncie, Ind. MORGAN, Robert A. (W I) Pass & Seymour, Inc.. Syracuse, N. Y. MORGAN, Stuart F. (WI) H arbor Rd., Mattapoisett Neck M attapoisett, Mass. (J. I. Paulding, Inc.) MORGAN, Willard L. (G) 1203 Moundview Ave., Newark, Ohio (Owens-Corning Fiberglas Corp.) MORGAN. W. R. (G FIl Sterling Grinding Wheel Co. Box 801, Tiffin, Ohio MORK. Gordon E. R. R., McCallsburg. Iowa MORNIN, Bob L. (W I) 3885 Pierce, Wheatridge, Colo. (Coors Porcelain Co.) MORREN, Georges 42 Bd Guillaume Van Haelen ^ j ^ ^ e s t , Brussels, Belgium ^ ^ ^ a m a n t Boart) ll M r e l S , Ernest D. 15 Irby Rd., Heswall, Cheshire, England (Morgan Refractories Ltd.) Vol. No. 10 ( in:>7) MORRIS, Frank I.W) 236 Greenpoint Ave. Brooklyn 22, X. Y. (Leviton Mfg. Co., Inc.) MORRIS, George J. (R) American Steel & Wire Co. Research Lab., Wire Ave. Cleveland 5, Ohio MORRIS, Irvine H. (W) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio MORRIS, John L. (W) 14427 Allingham, Norwalk, Calif. (Durochrome Decalcomania Co., Inc.) MORRIS, W. C. (G) 1251 Mayfield Ridge, Cleveland 24, Ohio (Harshaw Chemical Co.) MORRISON, Neil T. (M) Bell Research, East Liverpool. Ohio MORRISON, R. F. (M) 384 Gulf Rd., Elyria, Ohio (Harshaw Chemical' Co.) MORRISON, Wallace S. (M) Illinois Water Treatment Co. 840 Cedar St., Rockford, 111. MORSE, Clifford E. (G) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada MORSE, George T. (W F) Smooth-On Mfg. Co. 572 Communipaw Ave. Jersey City 4, N. J. MORTON POTTERY CO. (H. W. Rapp, Jr.), 315 W. Jefferson St. Morton, 111. MORTON, William A. (G) 46 Standish Blvd., Mt. Lebanon Pittsburgh 28, Pa. (Loftus Engineering Corp.) MOSAIC T IL E CO. (G. F. McConnell), Zanesville, Ohio MOSER, Berthold B. Industria Ceramica, Ltda. Apartado Aereo 4829, Bogota, Colombia MOSER. John B. 806 Seward St., Apt. II Evanston, 111. MOSER, John L. (R I) 1210 Acorn Dr., Dayton 9, Ohio (W. H. Kiefaber Co.) MOSS, LeRoy L. (E l) 3553 Ingleside Rd. Shaker Heights 22, Ohio (Ferro Corp.) MOTSCH, F. R. (G) Foster-Forbes Glass Co., Marion, Ind. MOULD, Richard E. (G) Preston Labs., Box 149, Butler, Pa. MOULD, W. J. (W) Steubenville Pottery Co., Box 1030 Steubenville, Ohio MOULTON, A. K. (S) 138 H arriett Dr. San Antonio 12, Texas (A. K. Moulton Associates) MOUNT CLEMENS POTTERY CO. (Charles E. Doll) Mount Clemens, Mich. MOl'RAUD, Paul H. (W) 14 Ingleside Rd. Upper Montclair, X. J. (Technical Ceramics & Lava Corp.) MOWREY, Fred W. (GI) 108 Rodgers Dr., New Kensington, Pa. (American Window Glass Co.) MOYER. H enry F. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio MUAN, Arnulf (B) Pennsylvania State University 23 Mineral Sciences Bldg. University Park, Pa. MUCC1GROSSO, Angelo 4206 Consaul Rd., Schenectady. X. Y. MUELLER. Edward E. (BI) School of Mineral Engineering University of Washington Seattle 5, Wash. MUELLER, Ferd A. (R) 1360 Rudd, Canon City, Colo. (Freeman Fire Brick Co.) MUELLER. James I. (B FI) Ceramic Engineering Division University of Washington Seattle 5, Wash. MUELLER, John P. (M) Mountain View Rd., Trenton S. X. J. (Mueller Machine Co.) MULL, Lee R. (G) Owens-Corning Fiberglas Corp. Barrington, N. J. MULLAN, Joseph (S) Champion Brick Co. 7600 Pulaski Highway Baltimore 6, Md. MULLEN, Willard F. (M) Klinger Heights, State College, Pa. (Curtiss-Wright Corp.) MULLER, Gerhard Staatliche Porzellan-Manufaktur Berlin Hartmannstrasse 1-3 (13a) Selb/Oberfr. U. S. Zone, Germany MULLER, Max (RI) ' Basic, Inc., 845 Hanna Bldg. Cleveland 15, Ohio MULLER, Robert Emaillerie de St. Maurice 29, Rue du Val d'Osne St. Maurice (Seine), France MULLIGAN, Edwin F. (E) Jones Metal Products Co. West Lafayette, Ohio MULLITE WORKS, REFR. DIV. H. K. PO RTER CO., INC. (Edward L. Bohn) 10 Canal St., Shelton, Conn. MULROY, James P. (E l) 965 Lafayette Ave., Buffalo 9, N. Y. (Boys Vocational High School) MULRYAN, Henry (W) Sierra Talc & Clay Co. Box 390, South Pasadena, Calif. MULTER, Robert K. (W) Architectural Tiling Co. Cass & Jackson Sts., Keyport, N. J. MULVANE, O. E. (E) 4138 N. 21st St., Milwaukee 9, Wise. (A. O. Smith Corp.) MUNDY, O. S. (W I) 426 Park Ave., Wheaton, 111. (Western Electric Co.) MURDOCH. K. A. Davey & Moore Ltd., Lockfield Ave. Brimsdown, Enfield Middlesex, England MURGATROYD, John B. Rockware Glass, Ltd., Rockware Ave. Greenford, Middlesex, England MURPHY, Edward J. (W) Charles B. Chrystal Co., Inc. 53 Park PL, New York 7, N. Y. MURPHY, Harry T. (R) Oimax Fire Brick Co., Climax, Pa. MURPHY, Leone P. 1005 S. Lincoln Ave., Urbana, 111. MURPHY, Remington M. (W ) 7744A Wagner Way Lynnewood Gardens Elkins Park 17, Pa. (International Resistance Co.) MURRAY, Ernest L. (M) United States Ceramic Tile Co. East Sparta, Ohio MURRAY, Frank J., Jr. (M) Nichols Engineering & Research Corp. 405 Montgomery St. San Francisco 4, Calif. MURRAY, Haydn H. (B) Georgia Kaolin Co. 433 X. Broad St., Elizabeth 3, N. J. MURRAY. John F. (B) 413 Ottawa St., Forest Heights, Washington 21, D. C. INaval Research Laboratory) R oster 70 AV* Louis J. ial Potteries, Ltd., Box 49 verton, Transvaal, South Africa Y, Maurice A. (W I) dding Place, Towaco, N. J. .. G. Corp.) AY, Maurice J. (B) dversal Oil Products Co. itf^ k |u in Rd., Des Plaines, 111. l.^ ^ ^ H b e rt S. (G) r^^ffakenfeld & Co., Inc. ashington, Pa. (AY, Thomas F. .1 Ravenel Rd., Clemson. S C 1ELMAN, H. G. (G) U3 Old Frederick Rd. altimore 29, Md. arr-Lowrey Glass Co.) riT T , F. C. (R) Igoma Steel Corp. ault Ste. Marie, Ont'., Canada ALEX CORP. OF AMERICA Richard A. Humphrey) ox 311, Clifton, N. J. RS, C. H. (R) ftah Fire Day Co. iox 127, Salt Lake City. Utah RS, Charles V. (W) " .ljer Co., Three Gateway Center 'ittsburgh 22, Pa. RS, Thbmas J. (G) 224 20th Ave., Altoona, Pa. Sylvania Electric Products, Inc.) RS, W ilbur C. (B) national Cash Register Co. 401 E. El Segundo Blvd. __. faw thom e, Calif. RSON, Martin fW ) Viyerson Tooth Corp. >0 Hamilton St., Cambridge, Mass. 1RSON, Richard L. (W) Viyerson Tooth Corp. *0 Hamilton St., Cambridge, Mass. iDAL, Rolf L. (W ) 1460 Painter Circle, Apt. 3 S t^ i^ r e n t, Que., Canada (Ij^^^B to n 's Tiles (Canada) Ltd.) N ^Q ^^u n g S. Kyaikmaraw, Amherst District Burma NT, Simon M. K. (S) University of Pennsylvania 3400 Spruce St., Philadelphia 4, Pa. N TLER, Marion R. (B) 498 Quartz St., Los Alamos, X. M. (Los Alamos Scientific Lah.) '.AN, Harold R. (W JI) 32 Claremont Ave., Santa Clara. Calif. (Lockheed Aircraft Corp.) iCAMURA, H. Henry (B) Armour Research Foundation of Illinois Institute of Technology 3427 S. Federal St.. Chicago 16. 111. KAMURA, Yoshikazu Shoko Glass Co., Ltd., 1330, Yamazak Kamakura City Kanagawa Pref., Japan XCE. Taylor E. (W) Gen. Del., Wallburg, X. C. (W estern Electric Co.) PIER. John B. (S) 1120 Bass Rd., Macon, Ga. (Cherokee Brick & Tile Co.) POLITANO, Albert (G) National Bureau of Standards Dept, of Commerce Conn. Ave. & Van Ness St. Washington 25, D. C. RASIMHAN. Malur D. 051, Ceramics Div. husetts Institute of Tech, dge 39, Mass, rold S. (D F) University of Cincinnati Ceramics Dept., Cincinnati 21. Ohio >L. :M\, N o . 10 (1007) NASH, Herbert (W) Southern California Gas Co. Box 3249, Terminal Annex Los Angeles 54, Calif. NATCO CORP. (R. A. Shipley) 327 Fifth Ave., Pittsburgh 22. Pa NATIONAL EN G IN EER IN G CO. SIMPSON MIX-MULLER DIV. (James Stewart) 540 W. W ashington Blvd. Chicago 6. 111. NATIONAL INDUSTRIAL SAND ASSN. (V. P. Ahearn) Munsey Bldg., Washington 4, D. C NATIONAL LEAD CO. ' (Roy Dahlstrom) 111 Broadway. New York 6. X. Y. NATIONAL L IM E AND STONE CO. (L. G. Love) First National Bldg. Findlay, Ohio NATIONAL REFRACTORIES DIV. M EXICO REFRACTORIES CO. ( R. A. H itchins). 226 S. 16th St. Philadelphia 2. Pa. NATIONAL RESEARCH CORP. (Philip J. Clough) 70 Memorial Dr. Cambridge 42, Mass. NAUDOT, Jacques Cerabati, 10 Rue Pasteur Pont Sainte Maxence (Oise), France NAVI AS, Louis (B FI) General Electric Co., Research Lab. Box 1088, Schenectady, N. Y. XAYRATIEL, Hans Rosenstrasse 9, Lauf/Pegnitz Bavaria, Germany (Sembach & Co.) NEAL, James E. (R) 164 Sandford Ave. North Plainfield, N. J. (Johns-Manville, Inc.) NEALON, Terence P. Edward Curran Engineering. Ltd. Cardiff, Wales XEDREBERG. Roy E. G. (WJ) 215 Searle St.. Zanesville, Ohio (Mosaic Tile Co.) NEEL, Lee, III Box 2546, Georgia Tech., Atlanta, Ga. NEELY, Homer E,, Jr. (G) 404 E. 11th Ave., Tarentum. Pa. (Pittsburgh Plate Glass Co.) NEFF, Edward D. (R) Box 205, Templeton. Pa. (Harbison-Walker Refractories Co.) NEFF, John M. (S) Armour Research Foundation 10 W. 35th St., Chicago 16, 111. N EFF. Russell C. (R) Olive Hill. Ky. (General Refractories Co.) NEIMAN, Robert (R) Whip-Mix Corp., Inc. 411 W. Avery Ave.. Louisville 8. Ky. XELLEY, John W. (G) 206 Theadore Rd., Nashville. Tenn. ( Ford Motor Co.) NELSON. Forrest W. (E!) A. O. Smith Corp , 3533 N. 27th St Milwaukee 1. Wise. NELSON, James A. (S) University of Illinois 204 Ceramics Bldg.. Vrbana. Ill NELSON, James W. (XJ) 3534 S. Third E. Salt Lake City. Utah NELSON, Karl E. 903 E. Michigan Ave.. Llrbana, III. NELSON, Richard P. 8520--32nd Ave.. N. W. Seattle 7, Wash. NELSON, Robert E. (G) 20 Spring St.. Seneca Falls, N. Y. (Sylvania Electric Products, Inc.) NELSON, Robert T. (R) Columbia-Geneva Steel Co. Box 510, Provo. Utah NELSON, William I. (G) 118 Mary St., Binghamton, N. Y. (Solvay Process Div., Allied Chemical & Dye Corp.) XEREXSTOXE. Marc (W) 389 Princeton Dr.. Pittsburgh 35. Pa. (Westinghouse Electric Corp.) XETTER, William S. (G) Keystone Abrasive Wheel Co. Gregg & Hammond Aves., Carnegie, Ta. XETZSCH, Erich Maschinenfabrik Gebrueder Netzsch Werkstrasse 19 Selb (Bayern), Germany NEW, Rvland J. (S) National Sewer Pipe Ltd. Box 36, Oakville, Ont., Canada NEWARK, Frank F. (W) Aluminum Co. of America 1450 Terminal Tower Cleveland 13, Ohio NEWARK, Martin (M) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37, Pa. NEWBOLD GENERAL REFRACTORIES, LTD.. Gavey St Mayfield, N. S. W.. Australia NEWBOLD. Ronald B. 577 E. 5400 S., Murray, Utah NEW CASTLE REFRA CTO RIES CO. (R. W. Rowland) New Castle, Pa. NEWCOMB. Rexford. Jr. (RI) 915 Dodge, Lake Geneva, Wise. (RX Chemical Co.) NEW JERSEY PORCELAIN CO. (J. M. Gilfillan) Box 908 Trenton 5, N. J. NEWKIRK, Terry F. (B) General Electric Co. Power Tube Dept. Schenectady, X. Y. NEWTON. Avery C. (R) The Refractories Institute First National Bank Bldg. Pittsburgh 22. Pa. NICHOLSON, Albert H. (D) Federal Glass Co. 515 Innis Ave., Columbus 7. Ohio NICHOLSON. Kenneth C. (R) 2440 Niagara Ave. Niagara Falls. N. Y. (Carborundum Co.) NICOLAS. Charles E. (R) Libbey-Owens-Ford Glass Co. Box 1091. Shreveport. La. NIELSEN, H. Bach (M) Nichols Engineering & Research Corp. 70 Pine St., New York 5, N. Y. NIELSEN, Thomas H. 406 W. Oregon, Urbana, 111. XIEMAN. A. H. (G) Ohio Lime Co.. Woodville. Ohio NIKLEWSKT. B, K Main Enamel Mfg. Co., Ltd. Gothic Works, Angel Rd. Edmonton. London. N. 18. England NILES FIR E BRICK DIV. MEXICO REFRACTORIES CO. (Carey E. Lindsay) 165 E. Park Ave.. Niles. Ohio NIPPON TOKI KAISHA. LTD. (Inn Isagawa) # 1 . Nnritakeshinmachi. Nishiku. Nagoya. Japan NISUI.A, Chester A. (R) 716 Main St., Riverton, N. J. (Simonds Abrasive Co.) XIXEN, David (G) CBS-Hvtron. Kent & Warren Sts. Newburvport. Mass. X[YOGI. D. P. c^o Mr. S. P. Niyngi. 4 Alipore Rd. Calcutta 27. West Bengal. India (M /S Bengal Enamel Works, Ltd.) NOBES. Frederick I. Carborundum Co.. Ltd.. Trafford Park Manchester 17, England R o st e r SI !LES, Eugene L. (E l) 3714 Torrington Ave., Cleveland 34, Ohio (Ferro Corp.) 5LES, Melvin A. (R ) Louisiana Polytechnic Institute Dept. Petroleum Engr., Ruston, La. )K, Charles J. (R) Son Co., 916 Engineers Bldg, d 14, Ohio ti Dept, of Applied Chemistry Faculty of Engineering Nagoya University Chikusa-ku, Nagoya, Japan E, James T. (S) 411 Madison Ave., Brookville, Pa. (Hanley Co.) HLE, Richard C. (SI) Claycraft Co. Box 866, Columbus 16, Ohio LAN, William F. 9 Somerset Lane, Holden, Mass. RANTE, Nicholas J. (W) Box 30, Star Route, Latrobe, Pa. (Stupakoff Div., Carborundum Co.) RDBERG, Martin E. (GF) 134 E. Fourth St., Corning, N. Y. (Corning Glass Works) RDGREN, Harry Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Stockholm, Sweden 1RDMEYER, Rudy L. (S) Valley Brick & Tile Co., Box 3S3 Mission. Texas JRDQUIST, Clarence E. (I) Two E. Dayton Dr., FairbornrO hio JRDQUIST, Lawrence E. (B) Cornell-Dubilier Electric Corp. 1605 Rodney French Blvd. New Bedforti, Mass. JR b Y K E , J, S. (M F) Hammond Lead Products, Inc. 40 E. Main St., Carnegie, Pa. ORMAN, Tom C. (W) Ath-Tex Ceramics, Inc. 92, Athens, Texas DEAU, Pierre (D) Hutchison St. cal 18, Que., Canada ORRIS, Alan W. 167 Station Rd., Wylde Green Sutton Coldfield, Warwick, England (Doulton Research Ltd.) ORRIS, Charles R. (W ) 4024 Diehl Ave., Cincinnati 36, Ohio (ECdhgarabreaHu.xFPreoetmtearyn),- 20118 E. Valley O RWRaIlSn-uTt,HCEaRliMf. AD OR CORP. ORTH AMERICAN REFRACTORIES CO. (Robert A. Moffett) 1012 National City E. Sixth Bldg. Cleveland 14, Ohio . NORTHWESTERN GLASS CO. (Edward S. Campbell) 5801 E. Marginal Way, Seattle 4, Wash. IORTON, Charles L., Jr. (RF) Babcock & Wilcox Co., 161 E. 42nd St. New York 17, N. Y. NORTON CO. (O. J. Whittemore, Jr.) Worcester 6, Mass. 'IORTON, Frederick H. (BFI) Dept, of Metallurgy Div. of Ceramics Mass. Institute of Technology Cambridge 39, Mass. MORTON, George R. (EJ) Pfaudler Co., Res. Lab. * 1000 West Ave., Rochester, N. Y. NORWALK, Marshall H. (GJ) 76 Catlin Dr., R. R. 2 Beavveer Dams, N. Y. .a ^ fipprmn ing Glass Works) V JOD, J. Nelson (Life, X) Fred University, Alfred, N. Y. NNOVTYT , Anton R. IB) 8140 Merrill Ave., Niles 31, III. (Great Lakes Carbon Corp.) Vol. 36, No. 10 (1957) NOWAK, John M. (B) O HIO LIM E CO. Bell Aircraft Corp., Box 1 (A. H. Nieman) Woodville, Ohio Buffalo 5, N. Y. NOWELL, Dorroh L., Jr. (S) OHLIGER, Lewis P. (G) 209 Ridgeview Dr. 202. Broad St., Augusta, Ga. East Rochester, N. Y. (Merry Bros. Brick & Tile Co.) (Bausch & Lomb Optical Co.) NUSSBAUM, Theodore 170 Ellis Ave., Irvington, N. J. OHNSORG, Roger W. Box 1049, Alfred, N. Y. NYQUIST, Roy A. (G) OHNYSTY, Basil (RJ) 3650 Beechway Blvd., Toledo 14, Ohio 9201 Cherokee Rd., N. E. (Libbey-Owens-Ford Glass Co.) Albuquerque, X. M. ( Sandia Corp.) o OLCOTT, Joseph S. (G) Corning Glass Works. Corning, X. Y. OAKEY, Paul D., Jr. - OLD HICKORY CLAY CO. 705 N. Main St., Blacksburg, Va. (Lee F. Powell) OAKLEY, H arry D. Box 271, Paducah, Ky. 217 Robinson O'LEARY, W. J. (R) North Tonawanda, X. Y. 24 Seminole Ave., Claymont, Del. OAKLEY, W. W. (GF) (E. I. du Pont de Nemours & Co.) Box 35, Corning, N. Y. OLEXCHUK, Daniel L. (R) (Corning Glass Works) 1300 Laird Ave., Aliquippa, Pa. OARE, Henry A. (W ) (Jones & Laughlin Steel Corp.) 2655 Sharondale Dr., X. E. OLIVER, D. A. Atlanta, Ga. B. S. A. Group Research Centre (Georgia Sanitarv Pottery, Inc.) Mackadown Lane, Kitts Green O'BANNON, L. S. (E) Birmingham 33, England 2239 Farleigh Rd., Columbus 21, Ohio OLIVER, John C. (E) (Battelle Memorial Institute) Porcelain Enamel Institute OBERSCHMIDT, Leo E., Jr. (I) 1145 19th St., N. W. Harbison-W alker Refractories Co. Washington 6, D. C. 1800 Farmers Bank Bldg. O LIVER, John H. (G) Pittsburgh, Pa. Westinghouse Electric Corp. OBERST, Clair R. (MF) Electronic Tube Div. Industrial Ceramic Products, Inc. Horseheads, N. Y. 965 W. Fifth Ave., Columbus 8, Ohio OLIVERIO, William (G) OBERST, Robert B. (W JI) Rolland Glass Co., Box 232 323 Weymouth Lane Clarksburg, W. Va. Columbus 4, Ohio (Industrial Ceramic Products, Inc.) OLSEN. Eric (D) R. R. 63, Dundee, 111. O'BRIEN, Neil H. (S) (Haeger Potteries, Inc.) B. F. Drakenfeld & Co. OLSEN, John M. (G) Box 519, W ashington, Pa. E. I. du Pont de Nemours & Co., Inc. O'BRIEN, William F. (E) Electrochemicals Dept. Hope Rd., Shrewsbury, N. J. Wilmington 98, Del. (American Potash & Chemical Co.) OLSEN, Rangwald S. (E l) O'CONNELL, Thomas B. (G) 1137 Grant St., Evanston, 111. Libbey-Owens-Ford Glass Co. (Armour Research Foundation) 1701 E. Broadway, Toledo 5, Onio O 'CONNOR, Frank 25 Boulder Lane, Levittown, Pa. O'CONNOR, Jerry B. (M) 1205 Edgewood Ave., Apt. B-3 Trenton 8, N. J. (O. Hommel Co.) O'DELL, Harold L. (W ) Hamilton Porcelains Ltd. 38 Elgin St., Brantford, Ont., Canada ODOM, Paul R. (M) 2566 Nancelon Circle, Macon, Ga. OLSON, Hjalmar Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Sweden OLSON, Ole A. (R) 5 Wrenwood Ct. W ebster Groves 19, Mo. (Laclede-Christy Works, Refr. Div. H. K. Porter Co., Inc.) O'N EILL. John H. (WJ) 146 Lenox Rd., Brooklyn, N. Y. (Sperry Gyroscope Co.) (J. M. H uber Corp.) ONODAGA POTTERY CO. (R. H. Pass) OESCH, Robert B. (S) 1858 W. Fayette St., Syracuse 1, N. Y. 202 Baker St. ORAVEC, Joseph A. (S) Box 846, H enderson, Texas 3731 N. Newland Ave., Chicago 34, 111. (Henderson Clay Products) ORBACH, Harry K. (B) OESTERLE, Henry (E) Roesch Enamel & Mfg. Co. W. Main & N. 24th Sts. Fluor Corp. Ltd. 12000 E. W ashington Blvd. W hittier, Calif. Belleville, 111. ORDWAY, Fred (B) O ESTERLE, Robert A. (E) 11 Glen Grove, Belleville, 111 (Roesch Enamel & Mfg. Co.) Portland Cement Association Fellowship National Bureau of Standards Washington 25, D. C. OGDEN, D. P. (S) Ogden Engineering Co. OREFRACTION, INC. (Albert L. Kreuer) 7425 Thomas St. Box 218, Ottawa, 111. Pittsburgh 8, Pa. OGDEN, Ellsworth P. (RF) Box 348, Granby, Colo. ORMSBY, Walter C. (W) National Bureau of Standards (H arrop Ceramic Service Co.) Washington 25, D. C. OGDEN, William D., Jr. (R I) ORR, David B. (EJ) Mackeyville, Pa. R.R. 2, Oneonta, N. Y. (North American Refractories Co.) ORTEPIO, Salvatore (W) O'HAGAN, Hugh F. (M) General Ceramics Corp., Crows Mill Rd. 214 Eagle P oint Blvd., Erie, Pa. Keasbey, N. J. (M inneapolis-Honey well ORTH, Howard S. (W) Regulator Co.) Industrial Ceramic Products, Inc. O H IO BRASS CO. (J. J. Taylor) 965 W. Fifth Ave., Columbus 8, Ohio Barberton, Ohio ORTH, Howard S., Jr. (W) O H IO CLAY CO. (Norman E. Denison) 236 Fairway Dr., Columbus, Ohio Box 1776, Cleveland 5, Ohio (Industrial Ceramic Products, Inc.) R o st e r 83 )RTMAN, Curtis D. (W) A C Spark Plug Div. General Motors Corp. 1300 N. Dort Hwy., Flint 2, Mich. )RTMAN, Fred B. (R FI) 1560 Stone Canyon Rd. Los Angeles 24, Calif. (Gltaddi ng, McBean & Co.) > R g fcl, EDWARD, JR., M a\Mi IC FOUNDATION ^ P l . C( arruthers) 1445 Summit St. Box 146, Sta. A, Columbus 1, Ohio IRTON, Mrs. Edward, Jr. 39 W. Torrence Rd., Columbus, Ohio )RTOX, Harold S. (G) West Penn Power Co. Cabin Hill, Greensburg. Pa. 1RZANO, Michael J. (SI) Claycraft Co. Box 866, Columbus 16, Ohio 1SBORN, Elburt F. (B) . College of Mineral Industries Pennsylvania State University University Park, Pa. 1SBORN, Walton O. (R) North American Refractories Co. Water St., Lock Haven, Pa. ISBORNE, David G. Lemington Glass Works Ltd. Lemington Newcastle-on-Tyne 5, England 7STRANDER, Eugene C. (G) ' Kopp Glass, Inc. Box 8255, Swissvale, Pittsburgh 18, Pa. JSTRANDER, Van R. (B) Endevco Corp. 27 E. California St., Pasadena, Calif. JTLEY, J. D. (S) John B. Kelly Inc. of Penn. 7720 Cherry St., Philadelphia 3, Pa. 1TRHALEK, Joseph V. (B) Wyandotte Chemicals Corp. Wyandotte, Mich. 3TTAWA SILICA CO. (George A. Thornton) Box 437 Ottawa, III. )1 ^ fc e o rg e H. (S) Jackson Blvd., Chicago 4, 111. ^SK sultant) )TTO, William H. (G) Owens-Coming Fiberglas Corp. Newark, Ohio 1TTOSON, Axel (GI) * 4300 Highland Ave., Shadyside, Ohio (Imperial Glass Corp.) IWEN, Frederick E. (R) Electrical Refractories Co. East Palestine, Ohio )WEN, J. D. ' R. Fowler, Ltd., Fitzroy St. Marrickville, Sydney, N.S.W., Australia >WENS-CORNING FIBERGLAS CORP. (A. C. Siefertl Newark. Ohio 3W E N S-IL LIN O IS (W. D. Miller) Box 1019. Oakland 4, Calif. OW ENS-ILLINOIS (E. W. Summers) Technical Center ' 1700 N. Westwood Ave., Toledo 7, Ohio IW ENS, James S. (W) : Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave., Detroit 11, Mich. )X LEY , Charles A. (W) 1508 Park St., Robinson, 111. (Case Mfg. Corp.) 'ACHL, Margaret (D) University of North Dakota Ceramics Dept., Grand Forks, N. D. PACIFIC CLAY PRODUCTS (John D. Fredericks) - Box 2178, Terminal Annex LOoSs AAlngeles 54, Calif. ` VN, Willard D. (W I) Jin M. Knowles China Co. fell, W. Va. A D FIELD , Ralph C. (R) 2990 Avon Rd., Bethlehem, Pa. (Bethlehem Steel Co.) / o l . 36, N o . 10 (1037) FAFF, John A. (G) PARSON, James A. (W I) Willson Products Div. 6217 Broadway, Indianapolis 20, Ind. Rav-O-Vac Co., Reading, Pa. (Vitroseal Corp.) PAFFRD, Ray W. (SF1) PARSONS, Douglas E. (S) Acme Brick Co. Building Technology Division Box 425, Fort Worth l, Texas National Bureau of Standards PALADIXO, Albert E .,^r. (BJ) Washington 25, D. C. Raytheon Mfg. Co., Res. Div. PARSONS, J. R. (R) Waltham 54, Mass. Chicago Fire Brick Co. PALMER, Delos M. (G) 7531 S. Ashland Ave., Chicago 20, 111. 4401 Jackman Rd., Toledo 12, Ohio PASCHAL, Forrest A. fSf (Delos M. Palmer & Associates) Box 289. Siler City. X. C PALMER, Rufus N. (M) (Manufacturers' A gent) 476 Broadmoor Ave., Pittsburgh 34, Pa PASK, Joseph A. (X F I) (Consultant) Division of Mineral Technology PALMER, W illard E. (SI) University of California 768 X. Cross St. Berkeley 4, Calif. Xewcomerstown, Ohio PASS, J. S. (W) (Clay Citv Pipe Co.) Pass & Seymour, Inc., Solvay Sta. PALMERI, Victor R. (E) 50 Bovd Ave., Svracuse 9. X. Y. Box 33. Kenmore Sta. PASS. R. H. (W j ' Boston 15. Mass. Onondaga Pottery Co (Fenual, Inc.) 1858 W. Favette St.. Svraeu>e 1. X. Y. PALMOUR. Hayne, III (BI) PASS & SEYMOUR, INC. (J. S. Pass) 3046 Lewis Farm Rd.. Raleigh. X. C. Solvay Station, 50 Boyd Ave. (American Lava Corp.) Syracuse 9, N. Y. PAXGELS. Alfred A. PATEK, Sherwood E. (S) Villeroy & Boch G.m.b.H. Midland Brick & Tile Co. Keramische Werke Chillicothe, Mo. Luebeck-Daenischburg, Germanv PATEL, Chandrakant J. PANGELS, Heinz J. (W) Box 236, Alfred, N. Y. Mosaic Tile Co. PATERSON, G. W. (R) Pershing Rd., Zanesville, Ohio Refractories Engr. & Supplies, Ltd. PAPER MAKERS 99 Clinton St., Hamilton. Ont., Canada IM PO RTIN G CO.. INC. PATRICK, Lt.jg. Howard W. (XJ) (Charles Brian) VF-111, FPO, San Francisco. Calif. 44 S. Second St., Easton, Pa. PATRICK, Joseph H. (S) PAPIER, Harry (S) 507 E. Creswell. Greenv.nod. S. C. Natco Corp., Box 267, Cordova, Ala. (Southern Brick Co.) PAPPIS, James PATRICK, Robert F. (E l) 433 Brookline Ave., Boston 15, Mass. Pemco Corp. PAQUIX. Pol 2554 Greenmount Ave. Socit Franaise de Cramique Baltimore 18, Md. Service de Documentation PAULSON, Fred H. (R) 23, rue de Cronstadt, 28 Greendale Ave., Worcester 6, Mass. Paris XV, France (Norton Co.) PARCEL, Martin W. (W) PAVLICA, Stanley R. Robertson Mfg. Co. Box 746, Alfred. X. Y. Box 848. Trenton 5, N. J. PAVLISH, Arnold E. (GF) PARIKH. Xiranjan M. 2904 Clarkson Rd. c/o Mr. M. G. Parikh Cleveland Heights 18, Ohio " Palmera"--3A Altamount Rd. (Cleveland Supplv Co.) Bombay 26, India PAWLOWSKI. Edward J. <R> PARKER, Glidden M., Jr. (D) 11 Morris St., Amsterdam, N. Y. Glidden Pottery. Inc., Alfred, N. Y (Mica Insulator Co.) PARKER, Harry (BI) PEARCE, Charles S. (F) 308 Marvin Rd.. Silver Spring, Md. American Ceramic Society (Xational Bureau of Standards) 4055 N. High St., Columbus 14, Ohio PARKER, Henry F. (G) PEARCH, Howard C. (W I) Pittsburgh Plate Glass Co. Creighton, Pa. 627 Elson St., East Liverpool, Ohio (Louthan Manufacturing Co.) PARKER. James W.. Jr. (S) PEARCH, William M. (W I) 7217 Shakespeare Rd., Columbia, S. C. Akron Porcelain Co., Akron 14, Ohio (Guignard Brick Works) PEARSON, Edward P. (X) PARKER, Leon (G) Basic, Inc., 845 Hanna Bldg. H. I. Thompson Fiber Glass Co. Cleveland 15, Ohio 1733 Cordova St., Los Angeles 7. Calif. PEARSON, E. J. & J., LTD. PARKER, Raymond W. (S) (Charles A. G. Thomas) Alliance Clay Product Co. Firebrick Works Box 746, Alliance, Ohio Stourbridge, Worcs, England PARKIXSOX. Robert E. (E) PEASE, Philip J. (G) Kawneer Co. 1405 Washington Ave. 1105 X. Front St., Xiles. Mich. Parkersburg, W. Va. PARKISOX. Robert G. (Demuth Glass Works, Inc.) 1613 12th St.. Charleston. 111. PECHMAX, Alexander (WI) PARMAX. Donald W. 1419 " H MSt., Renton. Wash. 1157 E. Pasadena, Pomona, Calif. (Pomona Tile Mfg. Co.) PARMER, Jess H., Jr. (G) Owens-Illinois, Technical Center 1700 X. Westwood Ave. PECK, J. Clair (SI) 2433 Brookside Ln,, York, Pa. (Glen-Gery Shale Brick Corp.) Toledo 7, Ohio PECKHAM, George W. (G) PARXHAM, H. General Refractories Ltd. Chattanooga Glass Co. Corsicana, Texas Central Research Labs. PECKHAM, Robert H. (G) Sandy Lane 4301 Sixth Ave.. S.. Seattle 8. Wash. Worksop, Notts. England (Penberthy Electromelt Co.) PARRY, William D. (D) PEDERSEX. John R. (GJ) Philadelphia Museum School of Art 1302 Parkside Blvd., Toledo, Ohio Broad & Pine Sts., Philadelphia, Pa. <Ow ens-Illinois) R ostfk x3 ?EDRICK, W. W. (G) Armstrong Cork Co., Millville, N. J. 'E D I'. Richard K. (RI) " 00 Prospect Ave. Cleveland 15, Ohio ( Basic, Inc.) PEEL, G. X. Associated Lead Manufacturers Ltd. 5scent House vcastle-on-Tyne 1. England Sidney A. (W) Crane-Pacific Co. 350 \V. Citrus St.. Colton. Calif. PE1LER. Karl E. (GF) Box 228. Mystic. Conn. ( Emhart Mfg. Co.) PELL. Robert E. . 909 \V. Nevada St., L'rbana, 111. PELLEGRINI. Edmund T. (G) Kopp Glass. Inc.. Palmer St. Swissvale. Pittsburgh 18, Pa. PELZ, Robert W. (E l) 2706 Grovewood, Parma 9, Ohio (Ferro Corp.) PEMCO CORP. (Richard H. Turk) 5601 Eastern Ave., Baltimore 24, Md. PENBERTHY, Larrv (G) Penberthy Electromelt Co. 2317 47th S. W,, Seattle 16, Wash. PENNSYLVANIA PULVERIZING CO. (William J. Woods, Jr.) Two Gateway Center Pittsburgh 22, Pa. PENTECOST. Joseph L. (W) 506 Woodland Dr., Fairfax, Va. (Melpar, Inc.) PEREXY, Andrew (MF) Pereny Equipment Co. 893 Chambers Rd. Box 153, Station A, Columbus, Ohio PERKINS, Harrell L. (M) Central of Georgia Railway Co. 1212 Rhodes-Haverty Bldg. Atlanta 3, Ga. PERKIIN S, W alter W. (W I) I Jacoby Rd., Copley, Ohio nited States Stoneware Co.) (. Commodore A. (S) 130 Wells Ave., Greenwood, S. C. (Southern Brick Co.) PERRY, Paul E. (B) Allegheny Ludlum Steel Corp. Brackenridge, Pa. PERRY, Robert F. (WI) Box 283, Victor, N. Y. (Victor Insulators Div., I-T-E Circuit Breaker Co.) PERRY, 2/Lt. Robert W. (GJ) 14th U. S. ASA Fid. Sta. APO 929, San Francisco, Calif. PERRY, T. Ray (W) 10629 Ambursen St. Houston 17, Texas (General Electric Co.) PERSICO, John V. 3400 Cashmere PI.. Seattle 5, Wash. PERTUCH, Walter A. R. (D ) Franklin Institute Library 20th & Parkway, Philadelphia 3, Pa. PESKIN, William L. (R) Carborundum Co., Perth Amboy, N. J. PETERS, Forrest I. (W) 113 Hendy Ave., Elmira, N. Y. (Corning Glass Works) PETERSEN, Fred A. (E FI) Hunter-Thomas Associates 2130 Keith Bldg., Cleveland 15, Ohio ' ETERSOX, Albert F. Rutgers. The State University School of Ceramics New Brunswick, X. J. 'EUtJSSlON, Donald H. (R) Oakcrest Ave.. Baltimore 14, Md. m Fartin Co.) 'ETERSON, Jack D. (G) 3029 123rd St., Toledo 11, Ohio (Owens-Illinois) *o l . :{(>, X o . 10 iio:>7) PETERSON, Jack L. (R I) 820 Milan Ave. South Pasadena. Calif. (Mfgr. Equipment) PETERSON, John A,, Jr. (W) Metal & Therm it Corp., Carteret, N. J. , PETERSON, O. M. (M) Lithium Corp. of America Hanna Bldg., Cleveland, Ohio PETERSON, W. H,, Jr. (R) Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. J. , PETRIE, Lloyd R. (W) 305 Western, Abingdon, 111. (Abingdon Potteries, Inc.) PETT, Tyler G. (G) Kopp Glass, Inc. Swissvale, Pittsburgh 18, Pa. PETTY, Frank (W) 2771 W. 230th St. ' Fairview Park 26, Ohio (Cleveland Ceramic Corp.) PETTY, Howard E. (S) 3131 Rvons, Lincoln 2, Nebr. (Yankee Hill Brick Mfg. Co.) PETTYJOHN-. Robert R. (B) 3777 y, L'dall, San Diego 7, Calif. (Convair) PFAUDLER CO. (Sidney W. McCann) 1000 West Ave., Rochester 3, N. Y. PFE IFF, C. H. (R) Curran-Pfeiff Corp. Box 527, Metuchen, N. J. PFEIFFEN B ERG ER, Lucas E. University of Illinois 204 Ceramics Bldg., Urbana, 111. PFEIFFER. Wilbur H. (EFI) Frigidaire Div., Genera] Motors Corp. Engineering Lab., Plant 2 Dayton 1, Ohio PFINGSTEN, H. W. (S) 1410 Colonial Blvd., Canton, Ohio (Metropolitan Brick, Inc.) PFINGSTEN, William, Jr. (S) Metropolitan Brick, Inc. Box 27, East Palestine, Ohio PFLEGER, George E. (M) Harshaw Chemical Co. 3237 S. Garfield, Los Angeles 22, Calif. PHADKE, V. S. Centra] Potteries, Ltd. Itwari, Nagpur 2, India PHELPS DODGE CORP. MORENCI BRANCH (L. L. McDaniel) Morenci, Ariz. PHELPS, Edwin H. (R) American Cast Iron Pipe Co. Box 2603, Birmingham 2, Ala. PHELPS, Girard W. (M) 410 E. Magnolia Dr., Morrisville, Pa. (United Clay Mines Corp.) PHELPS, Stuart M. (RF) Mellon Institute, Pittsburgh 13, Pa. PH ILIPS ELECTRONICS, INC. INSTRUMENTS DIV. (C. J. Woods) 750 S. Fulton Ave. Mount Vernon, N. Y. PHILLIPS. Adrian W,, Jr. (R) 316 Fairmont Ave., New Castle, Pa. (Shenango China, Inc. Shenango Refractories Div.) PH IL LIPS, Charles J. (GI) Rutgers. The State University School of Ceramics New Brunswick, N. J. PH IL LIPS. Donald G. (B) 2804 Lynne Ave., Hatboro, Pa. (Precision Grinding Wheel Co.) PHILLIPS, Edwin L. (M I) Carolina Pyrophyllite Co. Box 2414, Greensboro, N. C. PH IL LIPS. Gordon D. (W) Olean Tile Co. 103 S. Clark St., Olean. N. Y. PHILLIPS, James G. (R I) Dept, of Mines & Technical Surveys Mines Branch, Industrial Minerals Div. Lydia St., Ottawa, Ont., Canada PH IL LIPS, Richard A. (WJ) 1836 Willow Ave. Niagara Falls, N. Y. (Sprague Electric Co.) PHILLIPS, W. Eric (G) Duplate Canada Ltd., Box 367 Terminal A, Toronto, Ont., Canada PH O EN IX , Richard C. (W I) R. R. 1, Wynnewood Bound Brook, N. J. I Moore & Munger) PICKARD, M. H. (M) __ United States Borax & Chemical Corp. Pacific Coast Borax Co. Div. 50 Rockefeller Plaza New York 20. N. Y. PICKETT, Albert R. (R) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. PIEPER, Arthur O. (M) 105 Trevor Court Rd. Rochester 10, N. Y. (Heany Industrial Ceramic Corp.) PIERCE GLASS CO. (J. G. Bozzo) Railroad Ave., Port Allegany, Pa. PIERCE, J. Allen (R) 798 Chalmers PL, Pittsburgh 16, Pa. (Harbison-Walker Refractories Co.) PIERPONT, Harlan T., Jr. (B) Norton Co., 1 New Bond St. Worcester 6, Mass. PIERSON, James F. (M I) Pemco Corp., Sales Dept. 5601 Eastern Ave., Baltimore 24, Md. PIGOTT, Phillip G. (R) Box 345, Norris, Tenn. (United States Bureau of Mines) PILKINGTON, Lawrence H. A. Messrs. Pilkington Bros., Ltd. Glass Works, St. Helens, England PINCUS, Alexis G. (B) General Electric Co., Res. Lab. Box 1088, Schenectady, N. Y. PINNEY, J. M. (W) Harker Pottery Co. East Liverpool, Ohio PINNOW, Harley R. (W ) Pond St., R. R. 19 East Liverpool, Ohio (Hall China Co.) PINOTTI, Fred D. (G) 2324 Middlesex Dr., Toledo, Ohio (Kimble Glass Co.) PISULA, J. Donald (R) Corning Glass Works, Corning, N. Y. PITHER, Leslie F. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio PITTENGER, John T. (W ) Box 207, Newell, W. Va. (Homer Laughlin China Co.) PITTMAN, Jack (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio PITTMAN, William C. (R) 410 W hitthorne Dr., Wyoming, Cincinnati 15, Ohio (Chas. Taylor Sons Co.) PITTS, Joseph W. (E) 5714 Beech Ave., Bethesda 14, Md. (National Bureau of Standards) PITTSBURGH CORNING CORP. (Walter D. Ford) Research & Development Div. Port Allegany, Pa. PITTSBURGH PLATE GLASS CO. (James E. Archer) Glass Research Labs.. Creighton. Pa. PIXLEY. David M. (W) Ohio Kilns. Inc., Granville, Ohio PIXLEY. Francis V. (S) Ohio Kilns. Inc.. Granville, Ohio R o s t e r NT :E, Tom M. (BI) elipot Corp. ox 458, Newport Beach, Calif. E, Thomas M., Jr. (B) elipot Corp. ox 458, Newport Beach, Calif. Srnon L. (G) ouse Electric Corp. d, N. J. ristian W. (R FI) .adding, McBean & Co. 901 Los Feliz Blvd. -os Angeles 39, Calif. NJE, Theodore J. M. (B) Summit Ave., Rolla, Mo. Missouri School of Mines) NKENHORN, William J. (E F I) Chicago Vitreous Corp. 427 S. 55th Ct. )icero 50, 111. TT, Allan S. (S) Structural Clay Products Institute 947 Grand Central Terminal Bldg. New York 17, N. Y. TT, James (S) structural Clay Products Institute 1556 Clearview Ave., N. W. Tanton, Ohio ASANTS, Luther E., Jr. (G) >002 Brookfield Rd., Richmond Va. Allied Chemical & Dve Corp.) SSINGER, Clyde B. (S) Lindale, Texas (Reliance Clay Products Co.) ETZ, Edwin C. H. (E l) 5151 Hillcrest Dr. " Wauwatosa 13, Wise. (A. O. Smith Corp.) >ETZ, George L. (R) 261 Swaggertown Rd., Scotia 2, N. Y. (General Electric Co.) 1MBO, Victor A. (G) General Glass International, Inc. 5 S. Virginia Ave. Atlantic City, N. J. ' U f t R , Harry C. (SF) . Iral Clav Products Institute I8th St., N. W. Washington 6, D. C. IMMER, Norman (S) State Geological Survey of Kansas Lawrence, Kans. JMMER, William A. (G) Corning Glass Works, Corning, N. Y. j'N K ETT, Jerry D. 78 Westgate, Cambridge 39, Mass. JSCH, John A. (W) 63 Spruce St., Westfield, Mass. (Cortland Grinding Wheels Corp.) FFENBERG, Scott (M) 11616 Chenault St. Los Angeles 49, Calif. (Aluminum Silicates Co.) ISSON, Louis Faiencerie de Badonviller Badonviller, Meurthe et Moselle, France LAND, Milton E. (W JI) 203 W. LaSalle, Royal Oak, Mich. (Champion Spark Plug Co.) LAR. Alfredo (W ) National Tile & Mfg. Co. Anderson, Ind. LE, Gordon R. (BFI) 2592 S. Shore Blvd. White Bear Lake 10, Minn. (Minnesota Mining & Mfg. Co.) LES, Alfred P. (W ) 325 Arborlea Ave., Morrisville, Pa. (Clifton Ceramic Mfg. Co.) 'LHEM US, D. W. (R) reCratrnborundum Co. > y ^ r Pt erth Amboy, N. J. 'U ^ r t h u r E. (W ) 1, Dowagiac, Mich. Suce Terminal Corp.) >LSON, John B. (RJ) 724 Riverview Dr. N orth Augusta, S. C. (Babcock & Wilcox Co.) 3L. 36, No. 10 (1957) POMEROY, William T. (W) Sterling China Co. East Liverpool, Ohio POMPEI Luigi SANAC Soc. per Az. Refrattari Argille e Caolini Via Martin Piaggio 13-7, Genova, Italy POND, Marvin H. (W) 221 Ridge Ave., Gettysburg, Pa. (Climate Control Co.) POOLE, James P. (G) Brockway Glass Co., Inc., Plant 2 Brockway, Pa. ` PORCELAIN METALS CORP. (C. J. Kleinhans) 1400 S. 13th St. Louisville 10, Ky. PORST, Edward G. (E l) 1418 Stonewood Rd., Baltimore 12, Md. (Pemco Corp.) PORTER, Frank R. (E FI) 318 E. Clark St., Crown Point, Ind. (Inland Steel Co.) PORTER, J. L. (B) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland 12, Calif. PORTER, Wallace S. (W) Universal-Rundle Corp., Box 188 Hondo, Texas PORTS, David W. 3647 W. 68th St., Chicago 29, 111. POSEY IRON WORKS, INC. (Frank A. Fix) Brick Machinery & Mixer Div. Lancaster, Pa. POSLUSZNY, Raymond F. (R) 242 E. Meehan Ave. Philadelphia 19, Pa. (Refractory Specialties Co.) POST, Benjamin F. (MI) Golding-Keene Co. 1401 New York Ave., Trenton 8, N. J. POSTE, Emerson P. (EFI) 616 Baldwin St., Chattanooga 3, Tenn. (University of Chattanooga) POSTLEW AITE, Donald E. (W I) Universal-Rundle Corp., Box 300 Redlands, Calif. POTTER, Alan National Bureau of Standards Conn. Ave. & Van Ness St., N. W. W ashington 25, D. C. POTTER, Charles (G) Amersil Co. 685 Ramsey Ave., Hillside, N. J. POTTER, John F. (W) Bell Telephone Lab. Murray Hill, N. J. POTTERS SUPPLY CO. (William W. Irwin) 11 Washington St. East Liverpool, Ohio POTTIER, Henri Cie. Generale d 'Electro-Ceramique 12 Rue de la Baume, Paris 8*, France PTTINGER, R. (M) Vitachrome, Inc., 421 E. Sixth St. Los Angeles 14, Calif. POTTS, Amos P. (SF) 359 E. Main St., Logan, Ohio (Logan Clay Products Co.) POULOS, Nick E. (B) 1764 Flagler Ave. N. E., Atlanta, Ga. (Georgia Institute of Technology) POULTON, Robert F. (W) 2763 N. Congress Rd., Camden 4, N. J (Universal-Rundle Corp.) POUNDSTONE, William W. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa POW ELL, H. Eugene (G) 1061 Michigan Ave., Maumee, Ohio (Kimble Glass Co.) POW ELL, Joe A. 2288 N. High St., Columbus 1, Ohio POWELL, John A. (W ) 429 S. West End Ave., Lancaster, Pa (Radio Corp. of America) POW ELL, Lee F. (M) Old Hickory Clay Co. Box 271, Paducah, Ky. POWELL, O. E. (S) Indiana Drain Tile Co., Inc., Box 66 Brooklyn, Ind. POWELL, Richard H. (M) 1279 N. Main St., Jamestown, N. Y. POWERS, Don W. 1201 Highland Ave., Abilene, Texas POWERS, Edwin G. (S) Cia. Mexicana de Tubos de Albanal, S. A. Avenida Marina Nacional No. 200 Mexico 17, D. F. POWERS, George H. (R) Norton Co.. Refractories Div. Worcester 6, Mass. POYNOR, T. Wythe (S) Acme Brick Co., Box 1278 Oklahoma City, Okla. POZEFSKY. Leo (R) 1940 Hopewell Rd., Bethlehem, Pa. (Bethlehem Steel Co.) POZZANGHERA, Sam A. (G) Bausch & Lomb Optical Co. 635 St. Paul St., Rochester 2, N. Y. PRACHANKHADEE, Manoon Dept, of Science, Ministry of Industry Bangkok, Thailand PRALOW, W alter E. L. Zahnfabrik Wienand Sohne & Co., Krs. Offenbach/Main Sprendlingen, Germany PRATT, Donald S. (E) 3422 Eighth Ave., Beaver Falls, Pa. (Ingram-Richardson Mfg. Co.) PRECISION GRINDING W H EE L CO., IN C (Alexander M. Blakely) 8301 Torresdale Ave. Philadelphia 36, Pa. PRESCOTT, Frank R. (G) 1811 Kimball Ave., Arnold, Pa. (Pittsburgh Plate Glass Co.) PRESTON, Frank W. (G) Preston Labs., Box 149, Butler, Pa. PREWITT, J. K. (S) Elgin Standard Brick Mfg. Co. Elgin, Texas PRICE, Glen M. (R) General Refractories Co., Box 1673 Baltimore 3, Md. PRICE, James E. (RI) 1956 Guernsey Ave., Abington, Pa. (Simonds Abrasive Co.) PRICE, J. Russell (D) "Fairmeadows" Box 211, R. R. 3 Esmond 17, R. I. (Doulton & Co., Inc.) PRIDDY, K. O. (S) Barium Reduction Corp. South Charleston 3, W. Va. PRIESTLEY, J. Edward Huntly Brick & Fireclay Co., Ltd. Box 14, Huntly, New Zealand PRIMM, H erbert E. (R) 423 Parker Ave. San Francisco 18, Calif. (Gladding, McBean & Co.) PRINCE, Alan T. (BI) Mines Branch, Ottawa, Ont., Canada PRINDLE, William R. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. 15th & Jacob Sts., Wheeling, W. Va. PRIO R. Gordon M. (M) 200 W. Third St., Plainfield, N. J. (Specialized Ceramics Corp.) PRIO R, Harold D. (RI) Chas. Taylor Sons Co. Box 58, Annex Sta. Cincinnati 14, Ohio PROCTOR, W. J., Jr. (B) Southern Clays, Inc., Gordon, Ga. PROKOPEC, Robert (G) 309 N. Tillotson Ave., Muncie, Ind. (Ball Bros. Co., Inc.) R oster S9 'ROKOPOW1CZ, Thomas I. (BJ) 33 Johnson St., North Adams, Mass. (Sprague Electric Co.) JROMAT DIVISION, POOR & CO. (\V. F. Stark) 851 S. Market St. Waukegan, 111. ''KRY\ OU KR,, Edward K. (R) ^or-Giggey Co. 3^P 739, W hittier, Calif. !T1T, John P., Jr. tG) LLeeeedd:s & Northrup Co. 4901 Stenton Ave., Philadelphia 44, Pa. PUERTO RICO CLAY PRODUCTS CORP. (Oscar Gonzalez Cabanillas) Box 4729 San Juan, Puerto Rico ?UI, Wong Yuk Castle Peak Ceramic Co., (1940) Ltd. Castle Peak, N.T., Kowloon, Hong Kong PULLIAM. George R. (B) Douglas Aircraft Co., Inc. C-250 Adv. Des. Sect. Lakewood Blvd.. Long Beach 1, Calif. PULS, George (R) Acme Brick Co. Box 425, Fort W orth, Texas PULS, Josef "Austria" United Enamel Works Wilhelminenstr. 80 Vienna 107, Austria PUMPHREY, William I. Murex Welding Processes Ltd. Hertford Rd. Waltham Cross, Herts, England PUNTNEY. L. E. (RI) 908 E. Jackson, Mexico, Mo. (Mexico Refractories Co.) PUPULIDY, Alexander (R) 3100 S. Michigan Ave. Chicago 16, III. (Armour Research Foundation) PURCELL, Burnette (S) 834 Judson Ave., Evanston, 111. ^fljtforthw estern Terra-Cotta Corp.) F ^ ^ G T O N BRICK CO. ^ r . L. Worcester) "Box 110, Galesburg, 111. ' PURNELL, Hugh J. (R) 761 Loretta St., Pittsburgh 17, Pa. (United States Steel Corp.) PYRO REFRACTORIES CO. (A. C. Sanger) Box 488, Oak Hill, Ohio QUIGLEY CO., INC. (R. J. Demaison) 415 Madison Ave., New York 17, N. Y. QUIRK, John F. (W ) Battelle Memorial Institute 505 King Ave., Columbus, Ohio QUIRK, Virgil P. (B) 1754 Skyline Dr.. Pittsburgh 27, Pa. (Westinghouse Electric Corp). RABCHUK, Alexander (R) Kerr Manufacturing Co. 1111 E. Milwaukee. Detroit, Mich. RABIN, William J. (W) 19A-1 Redfield Village, Metuchen, N. J. (Ferricore, Inc.) RADCZEWSKI, Otto-Ernst Institut fur Gesteinshuttenkunde Mauerstrasse 5, Aachen, Germany RADIO MATERIALS CORP. (R. D. Bourgerie) 3325 N. California Ave., Chicago 18, 111. RK AAGGAATT/Z, Eugene C. (M) ^ ^ l l elein-Bradley Co. W. Greenfield Ave. ilwaukee 4, Wise. RAGGGOO!N, Frank C. (G) Owens-Illinois General Engineering Dept. 3600 Alameda Ave., Oakland. Calif. Vol. 3(1, N o. 10 n(ir>7) RAHE, Villem 800 N. Main St., W ashington, Pa. RAIBLE, A. J. (W) Briggs Manufacturing Co. 415 W. Seymour Ave. Cincinnati 16, Ohio RAINE, Frank F. (RI) - 111 E. Vine St., Mexico, Mo. (Mexico Refractories Co.) RAIN EAR, John F. (S) 68 Rainbow Terr. Orchard Park, N. Y. I Buffalo Brick Corp.) RAIT, J. R. Research Controller Hadfields Ltd. East Hecla Works, Sheffield 9, England RALSTON, O. C. (M F) 4333 Clagett Rd., Hyattsville, Md. (U. S. Bureau of Mines) RALSTON, Thomas E. (R) Harbison-Walker Refractories Co. 1800 Farmers Bank 'Bldg. Pittsburgh 22, Pa, RAMIREZ E., Geronimo (E) Hojalata y Lamina, S. A. Apartado Postal 996 Monterrey, N. L., Mexico RAMM, Eric H. L. Brisbane St Wunderlich Ltd. Lord St., East Perth, West Australia RAMSDEN, C. E. C. E. Ramsden Sc Co. Ltd. Foley Colour St Chemical Works Fenton, Stoke-on-Trent, England RAMSEUR. Arthur, Jr. Box 1480, Georgia Tech. Sta. Atlanta, Ga. RAMSEY, Thomas H., Jr. (BJ) 1615 Homewood PL, Dallas, Texas (Aluminum Co. of America) RAMTITE CO. (Louis J. Jacobs) 2563 W. 18th St,, Chicago 8, 111. RANDALL, Theodore A. (D) State University of New York College of Ceramics, Alfred, N. Y. RANDOLPH, Hal F. (R) Mexico Refractories Co. Mexico, Mo. RANKIN, James J. (M) St. Joseph Lead Co., Box 97 Monaca, Pa. RANKINE, Adam S. (R) Martinsville, N. J. (Johns-Manville Corp.) RANSOM, John T. (B) E. I. du Pont de Nemours & Co.. Inc. Experimental Station W ilmington, Del. RAPP, Carl H. (W I) Globe-Union, Inc., 900 E. Keefe Ave. Milwaukee 1, Wise. RAPP, H. W,, Jr. (W) Morton Pottery Co. 315 W. Jefferson St., Morton, 111. RASMUSSEN, R. K. (G) Mississippi Glass Co., Fullerton. Calif. RASMUSSEN, Wayland G. (S) Mason City Brick & Tile Co. 200 Brick & Tile Bldg. Mason City, Iowa RASSNER, Donald D. (SI) 1014 Longbrook Dr., Jasper, Ala. (Natco Corp.) RATCLIFFE, Harry J. (M) 831 President Ave.. Trenton, N. J. (Unique Kilns of Trenton, Inc.) RATCLIFFE, Temple W. (R) 244 Buffalo St., Beaver, Pa. (Babcock & Wilcox Co.) RATHMANN, Clyde L. (G) Corning Glass Works, Corning, N ,,Y. RAUCH, Harry W. (G) 342 Spring Ln., Bridgeport, Pa. (Foote Mineral Co.) RAUSCHER, Louis C. (G) Jenkintown Gardens Apt. F6 Jenkintown, Pa. (Lansdale Tube Co.) RAY, Donald L. Box 3349, Georgia Tech. Sta. Atlanta, Ga. RAY, E. Harold (M) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. RAY, John G. (G) Sylvania Electric Products, Inc. Cottage Place, Mineola, L. I., N. Y. RAYTHEON MANUFACTURING CO. ILeonard Lesensky) Foundrv Ave., W altham 54, Mass. RAZEY, Robert M. (R) 486 Ashland Ave., Detroit 15, Mich. (Great Lakes Steel Corp.) REA. Robert F. (W I) Diamonite Products Div. United States Ceramic Tile Co Shrevc. Ohio REAGAN, Cornelius J. (S) 532 Woodmont St. East McKeesport, Pa. (Van Ormer Brick Co.) REAGAN, Michael M. (E) Stamped & Enamelled Ware Ltd. Guelph Ave., Hespeler, Ont., Canada REARDON, Daniel E. Box 4923. Georgia Tech. Sta. Atlanta. Ga. REBCHOOK, Gregory V. (W) Radio Materials Corp., Attica, Ind. RECNY, Frank G. (B) General Electric Co. Specialty Electronic Components Dept. 1811 LeMoyne Ave., Svracuse. N. Y. REDW INE, Richard H. 115 Woodburn Rd., Raleigh, N. C. RED WING POTTERIES, INC. (Thomas M. Arnold) Red Wing, Minn. REED, A. J. (S) 521 Woodbine St., Willard, Ohio (National Clav Pipe Mfgrs., Inc.) REED, Carl E. (G) 1410 E. Main St., Lancaster, Ohio (Sharp-Schurtz Co.) REED. George C,, II I (BJ) 54644 N. 28th St.. South Bend 15, Ind. (Bendix Aviation Corp.) REED, Madison W., Jr. 7532 Rising Sun Ave.. Philadelphia, Pa. REED. Paul H. (R) 3101/, Fairmont Ave., New Castle, Pa. (New Castle Refractories Co.) REEVES, Harold, Sr. (W) Fitzpatrick Industries, Inc. Box 30, East Palestine, Ohio REFRACTORIES INSTITUTE, THE (Avery C. Newton) First National Bank Bldg. Pittsburgh 22, Pa. REFRACTORY & INSULATION CORP. (A. S. Arwine) Port Kennedy, Pa. REGENBRECHT, Albert, Jr. (G) Sylvania Electric Products, Inc. E. Third St., Williamsport, Pa. REGOUT, Joseph F. E. N. V. de Sphinx, Maastricht, Holland REGOUT, L. F. H. N. V. Porselein en Tegelfabriek Mosa Meerssenerweg 358. Maastricht, Holland REHM. W alter E. 6 Beachview, R. R. 3, Springfield, 111. REID, Frank P. American Ceramic Society 4055 N. High St., Columbus 14, Ohio REID. P. S. Borax Consolidated Ltd. Borax House. Carlisle PI. London S. W. 1. England REIMER, John J. (W I) Keystone Ridgeway Corp. Gettysburg, Pa. REIN. Peter (W) 1746 W. Sycamore, Kokomo. Ind. (Kokomo Sanitary Pottery Corp.) R o s t e r fll .EINKER, Arthur G. (R) Johns-Manville Sales Corp. 1530 Guildhall Bldg. Cleveland 15, Ohio EINKER, Gerald E. (G) General Electric Co., Lamp Div. 1133 E. 152nd St., Cleveland 12, Ohio IEL, Frank (W) Mayflower, Arcadia, Calif. Bectron Inc.) JG, Joseph A. (M) St. Joseph Lead Co., Zinc Smelting Div. Monaca, Fa. 1E1SS. Max S. (E) 39 Highland Terr. Canandaigua, N. V. (Lisk-Savorv Corp.) (EMDE, Harry F., Jr. General Ceramics Corp. Keasbev, N. J. iEMIN'GTON, Victor H. (GFI) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. IEMMEY, G. Bickley (RF) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. REMMEY, George B., Jr. 17 Mars St., Mexico, Mo. REMMEY, John G. (R) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. REMMEY. RICHARD C., SON CO. (G. Bickley Remmey) Hedley St. & Delaware River, Philadelphia 37, Pa. REMPES, Paul E., Jr. (B I) 1748 Cresthill, Royal Oak, Mich. RENFREW, J. Harvey (S) 31 Linden Park St., Roxbury 20, Mass. (Herman G. Protze) RENOUF, Leonard J. (R) 342 Church St., Youngstown, N. Y. (Titanium Alloy Mfg. Div., ^^M jstional Lead Co.) f ^ ^ K E R S , Richard H. (WI) ^ ^ V n eri can-Standard Box 736, Kokomo, Ind. REPUBLIC STEEL CORP. (Burton Longwell) 1420 Republic Bldg. Cleveland 1, Ohio RESCHETZ, Raymond R. 1615K W. Park, Champaign, 111. , RESER, Margie K. 977 Carlisle Ave., Columbus 11, Ohio (American Ceramic"Society) REUNING, Charles R. (R) 545 Boulevard, Westfield, N. J. (N ational Refractories Div. Mexico Refractories Co.) REUNING, George W., Jr. (R I) 874 Newport Dr., Pittsburgh 34, Pa. (National Refractories Div. Mexico Refractories Co.) REUSCHE, Frank L. (W) 60 Congressional Pky. Livingston, N. J. (L. Reusche & Co.) REUTER, Raymond (R) National Aluminate Corp. 6216 W. 66 PI., Chicago 38, III. REYNOLDS, Harry M. (G) Renite Co., Box 365, Sta. A. Columbus, Ohio REYNOLDS METALS CO. (L. S. Beeler) 2500 S. Third St., Louisville, Ky. RHOADS, James L. (B) 1410 Springside Dr., Lancaster, Pa. (Radio Corp. of America) >ES, Donald E. (B) allinckrodt Chemical Works 00 N. Broadway. St. Louis 7, Mo. RHODES, Foster T. (W) Onondaga Pottery Co. 1858 W. Fayette St., Syracuse 4, N. Y. Vol. 36, No. 10 (1957) RHODES, Frank R,, Jr. (RJ) 2336 Glenburn Rd., Augusta, Ga. (Babcock & Wilcox Co.) RHODES, Fraser B. (W FI) 7134 Maple Ave., Madeira, Ohio (Briggs Manufacturing Co.) RHODES, Ralph E., J r . (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. RHODES, Ralph R. (R FI) 1729 Powell St., Norristown, Pa. (E. J. Lavino & Co.) RHODES, William H. 154 East St., Onponta, N. Y. RICCI, Edward Michael (R JI) 817 Main St., Dickson City, Pa. (Harbison-Walker Refractories Co.) RICE, Hal H. (W I) 451 Vinewood Ave. Birmingham, Mich. (General Motors Corp.) RICE, Murray J. (B) . Box 155, Alfred, N. Y. (State University of New York, College of Ceramics) RICH, David C. (G) Pittsburgh Plate Glass Co. Creighton, Pa. RICHARD, Giulio A. Via Cernuschi 1, Milano, Italy (Societa Ceramica Richard-Ginori) RICHARDS, Robert W. (S) Richards Brick Co. 234 Springer, Edwardsville, 111. RICHMAN, Peter D. Box 746, Alfred, N. Y. RICHMOND, Joseph C. (E F I) 4822 Morgan Dr., Chevy Chase 15, Md. (National Bureau of Standards) RICHTER, Charles J. (G) Box 275, Canfield, Ohio (Glass Engineer, Inc.) RICK, Clarence A. (R) 320 W. Park Ave., Columbiana, Ohio (Kaiser Aluminum & Chemical Corp.) RICKER, Richard W. (E l) Aluminum Co. of America Alcoa Research Labs., Box 772 New Kensington, Pa. RICKEY, Charles J. (MJ) B. F. Drakenfeld & Co., Inc. Washington, Pa. RICKEY, J. H,, Jr. (R) Ironton Fire Brick Co. Box 536, Ironton, Ohio RIDDLE, Frank H. (Honorary, W FI) 14 Upland Rd.. Colorado Springs, Colo. (Champion Spark Plug Co., Ceramic Div.) RIDGEWAY, Thomas J., Jr. (R) 204 Romayne Ave., Joliet, 111. (General Refractories Co.) RIEDER, Zoltn (B) American Electro Metal Div. Firth Sterling, Inc. 320 Yonkers Ave., Yonkers. N. Y. RIEGERT, Richard P. (BI) 507 Orange Ave. Newport Beach, Calif. (Helipot Corp.) RIEPER, Gerald (W) 5335 Flint Ct. Indian Heights. Kokomo, Ind. (American Radiator & Standard Sanitary Corp.) RIGBY, James E. (G) Blue Ridge Glass Corp. Kingsport, Tenn. RIGTERINK, Merle D. (BF) Bell Telephone Labs. Murray Hill, N. J. RIIS, 'Asgeir (M) Robeson Process Co. Box 960, Erie, Pa. RIKER, Leon W., Jr. (G) 111 Rebecca St., K ittanning, Ta. (Pittsburgh Plate Glass Co.) RILEY, Roger R. (R) 1774 Danesta Dr., Concord, Calif. (Gladding, McBean & Co.) RINDONE. Guy E. (G) Department of Ceramic Technology Pennsylvania State University Universitv Park, Pa. RINEHART, Dale W. (G) 1420 L'nion Ave., Brackenridge. Pa. (Pittsburgh Plate Glass Co.) RINGEN, Robert E. (M) Paul O. Abbe, Inc., 400 Center Ave. Little Falls, N. J. RISEDEN, O. D. (W) 2923 Nurick Dr., Chattanooga. Tenn. (American Lava Corp.) RISPLER, Z. W. Palestine Glass Works "Phoenicia" Ltd., Box 168 Haifa, Israel RITLAXD, Harold N. (G) 2553 156th Ave., S. E., Bellevue, Wash. (Boeing Airplane Co.) RITT. P. E. (W) 910 Hillcrest Dr., Vienna. Va. (Melpar, Inc.) RITTER, Joseph S. (G) Adamston Flat Glass Div. Rolland Glass Co., Box 631 Clarksburg, W. Va. RITTLER, Hermann L. (GI) I Meadowbrook Apts., Corning, N. Y. (Coming Glass Works) RITZ, Joseph W. (G) Sylvania Electric Products, Inc. 83-30 Kew Gardens Rd. Kew Gardens, L. I., N. Y. ROACH, Carlton (G) Adamston Flat Glass Div. Rolland Glass Co. Box 631, Clarksburg, W. Va. ROACH, H. C. (R) American Radiator & Standard Sanitary Corp. 40 W. 40th St. New York 18, N. Y. ROACH, Wilfred H. (G) 112 Renwick Lane. Horseheads, N. Y. (Westinghouse Electric Corp.) ROBB. Richard B. (R) 209 Vine St., Pittsburgh 18, Pa. (United States Steel Corp.) ROBBINS. Carl R. (B) National Bureau of Standards Div. 9.3. W ashington 25. D. C. ROBBINS, David (W) 1929 Summerland St. San Pedro, Calif. (Northrop Aircraft, Inc.) ROBBINS. Martin D. (GJ) 86-15 Elmhurst Ave. Elmhurst. Queens, N. Y. (Chemical Engineering) ROBERTS, John Taggart (EFI) 419 Park Blvd., Glen Ellyn, 111. (Crane Co.) ROBERTS, John W. (S) 3204 Hawthorne Ave., Richmond 22, Va. (Southern Lightweight Aggregate Corp.) ROBERTS, Mervin Francis (E) II Plymouth PI., Gedney Sta. White Plains, N. Y. (de Lackner Helicopters, Inc.) ROBERTSON. James A. (R) Food Machinery & Chemical Corp. Box 8. Princeton, N. J. ROBERTSON, John M. (E) 3008 Rosedale Blvd., Louisville 5, Ky. (American Radiator & Standard Sanitary Corp.) ROBERTSON, Leon F. (G) Brockway Glass Co.. Inc., Brockway, Pa. ROBERTSON, Randal K. (S) 906 University Tower Bldg. Montreal. Que., Canada (Laprairie Brick & Tile, Inc.) ROBERTSON, R. Kenneth (S) 133 Thornton Ave. Mt. Royal, Que.. Canada (Laprairie Brick St Tile, Inc.) ROBESON PROCESS CO. ('Asgeir Riis) Box 960, Erie, Pa. R oster 93 iBILLARD, Harvey J. (R) Exolon Co., 1000 E. Niagara St. Tonavanda. N. V. iB INETTE, Oren, Jr. New Brick Apts., Apt. 23 Clemson, S. C. 1BUUON CLAY PRODUCT CO. Robinson) Box 1070 State St., Akron 9, Ohio IB nfSO N . Donald R. (W) Tile Council of America Rutgers, The State University School of Ceramics New Brunswick, X. J. 9BINSON, F. George (S) 500 S. Santa Fe Dr., Denver, Colo. (Robinson Brick ft Tile Co.) 1BIXSOX, Gilbert C. (X F) Box 91, Clemson, S. C. (Clemson College) 3BINSON, Louis G. (E) Louis G. Robinson Labs. Box 761, Cincinnati 1, Ohio OBINSON. Neal (S-) Robinson Ventilating Co. Zelienople, Pa. DBINSON, Percy Burrill Diamond Clay Co. Ltd. Hartshill, Stoke-on-Trent, England DBINSON, Phillip 23 Pymble Ave. Pymble, N.S.W., Australia (Gallard ft Robinson Pty. Ltd.) DBINSON, Richard E. (RI) Johns-Manville, Zelienople, Pa. . OBINSON, Richard R. (SI) " 2232 Parkway Blvd., Alliance, Ohio (Alliance Clay Product Co.) OBINSON VENTILATING CO. (J. L. Henderson, Jr.) Zelienople, Pa. OBINSON, W. E. (S) Robinson Clay Product Co. Box 1070, 65 W. State St. , Ohio , William L. (RJ) Sixth St., Fulton, Mo. (Harbison-W alker Refractories Co.) OBSON, H. L. (G) 2 Water St., Lewiston, N. Y. (Olin Mathieson Chemical Corp.) OBSON, James T. (M FI) Allied Engineering Division Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio OBSON, William G. (B) Atomics International 21600 Vanowen, Canoga Park, Calif. :OCHE, L. C. (GF) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30, Md. lOCHESTER, Thomas W., Jr. (G) 210 Delevan Ave., Corning, N. Y. . (Corning Glass Works) :OCHFORD, David S. Box 787. Alfred. N. Y. IOCHOW, W. F. (RF) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. tOCKFORD BRICK ft T IL E CO. (G. H. Galvin, Jr.) Rockford, Iowa (OCKW ELL, Dale L. (RJ) 5 East " D" St., Belleville, 111. ( Walsh Refractories Corp.) tODEFER, Howard H. (G) Rodefer-Gleason Glass Co. Box 550, Bellaire, Ohio lODGER, John K. L. G. Sparking Plugs Ltd. ^ P u tn ey Vale ^ H ^ i d o n S. W. 15. England ^^HP\X, Clarence J. (E) ^ ^ n l5 S. LTnion Ave.. Alliance, Ohio (Alliance Ware, Inc.) RODRIGUEZ, Alfonso F. (G) Vidriera Monterrey, S. A. Apartado 162, Monterrey, N. I... Mexico v'OL. 3(>, No. 10 ( 19.57) RODRIGUEZ, A. R. (B l) 29 Pine St., Franklinville, X. V. (Hi-Q Div., Aerovox Corp.) ROE,'Lawrence A. (G) 712 Moffett Rd., Lake Bluff. 111. ( International Minerals & Chemical Corp.) ROE. Sheldon F., Jr. (GJ) Thatcher Glass Mfg. Co. Elmira, X. Y. ROFF, Robert W. (M) Bell Operations 433 Birch PI., Westfield. X. J. ROFF, W. Wallace (M) 14 Glenside Dr., West Orange. X. J. (W hittaker, Clark & Daniels, Inc.) ROGATZ, Alvin (B) Maida Development Co. 214 Academv St., Hampton, Va. ROGERS, Edwin J. (W I) Scintilla Div. , Bendix Aviation Corp., Sidney, X. Y. ROGERS, Gregory L. (R) 9500 S. Norwalk Blvd. Los Nietos, Calif. (Pacific Clay Products) ROGERS. John W. (R) Laclede-Christv Works, Refr. Div. H. K. Porter Co. 2064 Hampton Ave., St. Louis 10, Mo. ROGERS, Melvin F. (GI) 55 Goff St., Coming, N. Y. (Corning Glass Works) ROGERS, Virgil L. (S) Hebron Brick Co., Hebron, N. D. ROGERS, William R. (R) Carborundum Co., Bristol, Pa. R O LK E, H erbert J. (I) Sociedade de Engenharia Industrial Rua Marconi, 23,8* andar Sao Paulo, Brazil ROMANO, Pasquale J. (W I) 1212 Cavalier Ln., West Chester, Pa. (Foote Mineral Co.) ROMINE, Donald J. 606 S. Monroe St., West Frankfort, 111. ROOD, Joseph L. (G) 56 Farnsworth Rd. Rochester 23. N. Y. (Bausch & Lomb Optical Co. I ROONEY, Thomas E., Ill (R) Empire Fire Brick Co. 219 Murrav, Fort Wavne. Ind ROOT. H. Dean (W I) Westinghouse Electric Corp. Ceramics Section 7325 Penn Ave., Pittsburgh 8. Pa. ROOT, Lawrence L. (M) Stanford Pottery Inc. 40 S. 15th St., Sebring, Ohio ROQUES, Rodney A. (W) 413 Boyd St., Golden, Colo. (Coors Porcelain Co.) ROSE. Ralph (RI) H. F Porter Co.. Inc.. Refr. Div. 2500 First National Bank Bldg. Pittsburgh 22, Pa. ROSENTHAL, E. K. (W) 234 Napoleon St. Playa Del Rey, Calif. (Metlox Mfg. Co.) ROSENTHAL, Ernst 246 Park West, Marble Arch London W. 2. England ( Rosenthal China Ltd.) ROSENTHAL, Jerome J. (RJi 2111 -C 34th St., Los Alamos. X. M. (Los Alamos Scientific Lab.) ROSENW INKEL, George O. (R) North American Refractories 59 E. Van Buren, Chicago 5, 111. ROSEXZW EIG. Herman (C.) Texglass. Inc.. Decatur, Texas ROSICLARE LEAD ft FLUORSPAR M INING CO, (J. Blecheisen) Rosiclare, 111. ROSLUND, J. A. (R) Globe Brick Co., Box 765 East Liverpool, Ohio ROSS, Donald W. (RF1) 5929A Oakhurst PI., St. Louis 12, Mo. (Consultant) ROSS, Howard, II (E) 3411) Archwood Ave. Cleveland 9, Ohio (Ferro Corp.) ROSS, Stuart T. (B) 901 Brooklawn Rd. Birmingham, Mich. (Chrysler Corp.) RSSING. Barrv R. Box 1396. Alfred, X. Y. ROSS-TACONY CRUCIBLE CO. (A. M. Johnson) Robbins & Milnor Sts. Philadelphia 35, Pa. ROTH, Harper D. (M) East River Rd., Grand Island, N. Y. (Harper Electric Furnace Corp.) ROTHERMEL, Joseph J. (G) Corning Glass Works, Research Lab. Corning, X. Y. ROUDABUSH, Henry L. (R) General Refractories Co. 3201 Fruitland Ave. Los Angeles 58, Calif. ROUDABUSH, Ned W. (R) 311 Candlewood Rd., Broomall, Pa. (General Refractories Co.) ROUP, Rolland (W FI) Centralab Div., Globe-Union Inc. 900 E. Keefe Ave., Milwaukee 1, Wise. ROWE, Arnold E. (E) 1210 Dilworth Rd., Charlotte, X. C. (Douglas Aircraft Co.) ROWLAND, Donald A. (B) 3 Maple St., Bath, N. Y. (W estinghouse Electric Corp.) ROWLAND, Richards A. (B) 3737 Bellaire Blvd., Houston 25, Texas (Shell Development Co.) ROWLAND, R. W. (BF) New Castle Refractories Co. New Castle, Pa. ROWLANDS, Robert R. (W I) Universal-Rundle Corp. Box 300, Redlands, Calif. ROY, H. N. Indian Ceramic Society Dept, of Ceramics Benares Hindu Univ. Benares, India ROY, James W. (B) West St., Lenox, Mass (General Electric Co.) ROY. Rustum (B) Pennsylvania State University 221 Mineral Sciences Bldg. University Park, Pa. ROYAL CHINA, INC. (B. L. Miller) Sebring, Ohio ROYAL COPENHAGEN PORCELAIN MANUFACTORY ft THE FAIENCE MANUFACTORY ALUMINIA (Chr. Christensen) Smallegade 45 Copenhagen F., Denmark ROYAL, Herbert F. (W F) 845 Pilgrim Rd., Birmingham, Micb. (Champion Spark Plug Co.) ROYER, Rene Ingenieur-Conseil (E.C.P.) 60, Rue D'lssy, Vanves (Seine) France RUARK. A. E. (G) Atomic Energy Commission Research Div., W ashington 25, D C. RUDD, Richard D. (M) Carborundum Co. 3335 W. 47th St., Chicago 32, 111. RUE, Charles V. (BI) 143 Lindsay Ave., Tiffin, Ohio (Sterling Grinding Wheel Co.) RUECKEL, Walter C. (RF) Koppers Co., Inc., Koppers Bldg Pittsburgh, Pa. RUFFXER. Larry J. (W) Jeffers Electronics Div. Speer Carbon Co. H om er Ave.. Du Bois, Pa. R o s t e r ?),"> ! :UGG, Ormund 1. (G) 13615 Meyers Rd., Detroit 27, Mich. (Ford Motor Co.) :UGH, Kenneth A. (R) Garfield Refractories Co. Bolivar, Pa. '.U H, Edwin (R) Fruithurst Dr. burgh 34, Pa. rbison-Walker Refractories Co.) fUH, Robert (R) 162 Diana Ln., N., Fairborn, Ohio (Wright Air Development Center) lUIZ, Jorge Martin (R) Amerex Ingenieros, S.A., Ixtaccihuatl 6 ( Insurgentes & Aguascalientes) Mexico 11, D. F. UJIZ, Robert A. (R) 114 W. Home St., Vandalia, Mo. (Walsh Refractories Corp.) 1ULON, Richard M. (G) Sylvania Electric Products, Inc. 60 Boston St., Salem, Mass. OISHMORE, Murray, Jr. (M) Moore & Munger 33 Rector St., New York 6, N. Y. UJSO, Felipe B. Galiano 109, Habana, Cuba (General Glass Equipment Co.) tUSOFF, Samuel (R) Basic, Inc. Maple Grove, Fostoria, Ohio IUSSELL, Howard F. (E l) 3118 Woodworth PI. -' Pottowatomie Hills, Hazelcrest, III. (Ingersoll Products Div., Borg-Wamer Corp.) IUSSELL, Leslie A. (G) Continental Can Co., Inc. Hazel-Atlas Glass Div. tU SS31E9LI S. Main St., W ashington, Pa. 20 KIUi SSELL, Lewis E. # Kirk Close, Oxford, England K. Atomic Energy Authority) Z4 Lo,i Norman Keith (R I) Longcorse Ln., Paoli, Pa. (Richard C. Remmey Son Co.) IUSSELL, Ralston, Jr. (X FI) Dept, of Ceramic Engineering 126 Lord Hall, Ohio State University Columbus 10, Ohio IUSSELL, Robert G. (G) R. R. 2, Granville, Ohio ( Owens-Coming Fiberglas Corp.) RUSTLESS IR O N CO.; LTD. (H . Whitaker) Lawkholme Ln. Keighley, Yorks, England IU TH ER FO R D , Thomas C. (S) W est Virginia Pulp & Paper Co. Charleston, S. C. RUTLEDGE, Campbell, Jr. (G) Corning Glass Works, Corning, N. Y. RUZICKA, Roy H. (EJ) 15013 Reddington Ave. Maple Heights, Ohio (Ferro Corp.) IYAN, Joseph D. (G) 3018 Middlesex Dr., Toledo 6, Ohio (Libbey-Owens-Ford Glass Co.) IYAN, Larry D. Box E, Gig Harbor, Wash. tYDER, Robert J. 221 E. McCormick Ave., Apt. 2 State College, Pa. RYLAND, H. W. (W ) Coors Porcelain Co. 600 Ninth St., Golden, Colo. V O D E R S, Gerald F. (BI) ^ ^ ^ k o n a l Bureau of Standards 9.1, Washington 25, D. C. il ^ ^ E W I T C H , Eugene (R) 322 Van Emburgh Ave. Ridgewood. N. J. (National Beryllia Corp.) to l . 36, No. 10 (1957) s SABURI, Osamu Murata Mfg. Co., Ltd. Technical Lab. Kaiden, Nagaoka, Otokunigun Kyoto, Japan . SADA, Patricio (E) Troqueles & Esmaltes S. A. Apartado Postal 371 Monterey, N. L., Mexico SADLER, Arthur G. (R) Mines & Technical Surveys Mines Branch, 40 Lydia St. Ottawa, Ont., Canada SADLER, Walter L. 219 E. James St., Falconer, X. Y. SAEX'G-XUTO, Padermrata Box 2111, Georgia Tech. Sta. Atlanta, Ga. SAGIX'OR, S. V. (B) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. SAIBEL, Edward (G) Rensselaer Polytechnic Institute Troy, N. Y. SAILER, Edward (BJ) Radio Corp. of America Somerville, N. J. SALEEBY, Edward C. (S) J. C. Steele & Sons, Inc. Box 951, Statesville, N. C. SALINAS, Mario (G) Montes Carpatos 625 Mexico 10, D. F., Mexico (Vidriera Mexico, S.A.) SALISBURY, Charles W. (G) R. R. 1, Wayne, Ohio (Kimble Glass Co.) SALISBURY, William R. (W ) Lyndon Rd., Fayetteville, N. Y. (Onondaga Pottery Co.) SALTMAN, Donald (W) 17709 Ibbetson, Bellflower, Calif. (Douglas Aircraft, Inc.) SAMMARONE, Americo, Jr. Sammarone S. A. Industria Ceramica Rua Jose Bonifacio 210 Sao Paulo, Brazil SAMMONS, Frederick C. (R) General Refractories Co. 3247 Fruitland Ave. Los Angeles 58. Calif. SAMPSON, H. B. (S) Athens Brick Co. Box 751, Tyler, Texas SAMPSON, J. Leonard (G) Mahoning Glass Works General Electric Co., 403 N. Main St. Niles, Ohio SAMPSON, John W. (M) Lindberg Engineering Co. Box 813, East Longmeadow, Mass. SAMSON, A. William (G) B. F. Drakenfeld & Co. Inc. Box 519, Washington, Pa. SAMUEL, Donald G. (R) E. J. Lavino & Co. Box 29, Norristown, Pa. SANDERS. Clyde A. (R) American Colloid Co. Merchandise Mart, Suite 813 Chicago 54, III. SANDERS. Herbert H. (D) 17926 Daves Ave., Los Gatos, Calif. (San Jose State College) SANDERS, Loren D. (B JI) 1233 Delaware Ave., S. W. Canton, Ohio (Ohio Brass Co.) SANDERSON, K. W. John G. Stein & Company, Ltd. Bonnybridge, Scotland SANDFORD, Per Johan Folke Chalmers Tekniska Hogskola Gibraltargatan 5T. Goteborg, Sweden SANDMEYER. Karl H. (RI) 85 Pleasantview Dr.. Jamestown, N. Y. (Carborundum Co.) SANDS, George Imperial Smelting Corp. Avonmouth, Bristol, England SANFORD BRICK & T IL E CO (James V. Isenhour), Colon, N. C. SANFORD, Elbert A. (E) 375 Oakridge Dr., Rochester 17, N. Y (Pfaudler Co.) SANFORD, Robert E. Box 286, Dalton, N. Y. SANGER, A. C. (R) Pyro Refractories Co. Box 488, Oak Hill, Ohio SAN MIGUEL BREWERY, INC. (A. Villa-Abrille) 1112 Aviles Manila, Philippines SANNER, R. Dean R. R. 1, Argenta, 111. SANT, John W. (W) Universal-Rundle Corp. Mt. Vernon & Orchard St. Camden, N. J. SANTOMIERI, S. Lewis (W I) Box 8, Botkins, Ohio (Botkins Engineering) SARAKAUSKAS, Raymond (B) National Carbon Co., Research Labs. Box 6116, Cleveland 1, Ohio SARGENT, Edward C. (R) Zirconium Corp. of America Solon, Ohio SARRAF, Edward M. (R) 20001 Laurel Ave. Rocky River 16, Ohio (Harbison-Walker Refractories Co.) SARVER, James F. 107 E. Aaron Dr., State College, Pa. SASAKI GLASS MFG. CO., LTD. (Seiichi Tabata) 1.1-Chome Yokokawa-Bashi Sumida-ku, Tokyo, Japan SASTRY, B. S. R. Pennsylvania State UniversityCollege of Mineral Industries University Park, Pa. SAUEREISEN, C. Fred (W) Sauereisen Cements Co. Sharpsburg Sta., Pittsburgh 15. Pa. SAUNDERS. Alfred C. (RI) Eckhardt Rd., Hamburg, N. Y. (Electro Refractories & Abrasives Corp ) SAUNDERS, Hollis S. (E) O. Hommel Co., Box 475 Pittsburgh 30. Pa. SAUNDERS, R. H. (S) Charleston Clay Products Co. Box 349, Charleston 22, W. Va. SAUNDERS, Richard A. (S) 2626 Larwood Dr., Charleston, W. Va. (Charleston Clay Products Co.) SAUNDERS, Stephen C. Box 787, Alfred, N. Y. SAUSVILLE. Joseph W. (R) Curtiss-Wright Corp., Qttehanna. Pa. SAVELL, Fred H. (W) Western Talc Co. 1901 E. Slauson Ave. Los Angeles 58, Calif. SAVIOLI, Francesco SANAC, Via Martin Piaggio 13 Genova, Italy SAWAI, Ikutaro Kyoto University, Kyoto, Japan SAWYER, E. C. (M) Central Silica Co., 806 Market St. Zanesville, Ohio SAWYER, James P. (W) 713 Green Glen Dr., Du Bois, Pa. (Jackson China Co.) SAXE, Charles W. (R) 1 Wawecus Rd., W orcester 5, Mass. (Norton Co.) SAXONBURG CERAMICS (George H. Aderhold) Box 100 Saxonburg, Pa. SCALES. John B. (BI) 456 Lynn Dr., Berea, Ohio (United States Stoneware Co.) R o ster 97 HAA, Ferdinand A., Jr. (W) 84 Paumanake Ave., Babylon, N. Y. (Sylvania Electric Products Inc.) HAAL, Frank W,, Jr. (W) B. F. Drakenfeld & Co., Inc., Box 519 Washington, Pa. HABACKER, H. Eric (E) yCeramic Arts Co. IW . 22nd St., Erie, Pa. X Roy G. (G) General Electric Co., Glass Mfg. Dept. 17825 St. Clair Ave. Cleveland 10, Ohio 1HAEFER, Carl F. (W ) 327 Sheffield Ave., Flint, Mich. (A. C. Spark Plug Div. General Motors Corp.) iH A EFER. Earl F. (G) 3129 Radford Dr., Toledo 14. Ohio (Owens-Illinois) iHAEFER, Earl F,, II 102 E. Chalmers, Champaign, 111. IHAEFLE, Max Thayngen/SH, Switzerland (Tonwerke Thayngen A. G.) 2HAFER, C. B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio 2HANER, Burton E. (B) Westinghouse Electric Corp. Box 1468, Pittsburgh 30, Pa. CHATZKIN, Harvey (W) Architectural Tiling Co. Inc. Cass/Jackson Sts., Keyport, N. J. CHAUSS, Edward P. (G) .. 3846 Corina Way, Palo Alto, Calif. (Kaiser Aircraft & Electronics Corp.) CHELL, Donald C. (E) 6422 W. 28th St., Berwyn, 111. (Armour Research Foundation) C H IEFFE R LE , James A. (E) 4501 Statton Rd., Louisville 5, Ky. (General Electric Co.) CHIENE, Quentin J. (R) Kingston Ave., Chicago 49, 111. ^ ^ ^ ite d States Steel Corp.) C ^ W f ERLI, Leo M., Jr. (R) 3001 W estmoor Dr., Kokomo, Ind. (Haynes Stellite Co.) CHLEGEL, Roland F. Rua Inglaterra 283, Sao Paulo, Brazil CHLEHR, W. Raymond (GI) # Ford Motor Co., Glass Plant Dearborn, Mich. CHLOEMER, Hermann Mineralog. Institution of Univ. Tuebingen, Bismark'str. 50 Tuebingen, Germany 1CHLOTZHAUER, Leon R. (R) R.R. 2, Painted Post, N. Y. (Coming Glass Works) iCHMID, Arthur W. (G) Arthur W. Schmid Co. 1414 Investment Bldg., 239 Fourth Ave. Pittsburgh 22, Pa. 5CHMIDT, Beuther L. (R) Anchor Hocking Glass Corp. Lancaster, Ohio 'CHM1DT, William G. (S) Box 187, Burnt Hills. N. Y. (General Electric Co.) iCHMUNK, Louis (W) 70 Dunedin Dr. Toronto 18, Ont., Canada (American Standard Products Ltd.) 5CHNEIDER, Claude W. (S) Schneider Brick & Tile Co., Inc. 2599 Front St., Slidell, La. SCHNEIDER, LaVoy H. (E) 5 Maple Ct., Hamilton, Ohio ^ ^ ^ e r r o Corp.) ^ ^ H I I D E R , Matthew P., Jr. (S) ^ ^ ^ ^ 8 Louisa St., Slidell, La. WSt. Joe Brick Works, Inc.) SCHNEIDER, Richard R. 179 Dunhams Cor. Rd. Milltown. X. J. VOL. 30. N O . 10 ( li)."?) SCHNEIDER, Samuel J., Jr. (RI) 3338 Lancer Dr. West Hyattsville, Md. (National Bureau of Standards) SCHOELLKOPF, Robert S. (W ) Carborundum Co. of Puerto Rico Box 1147, Mavaguez. Euerto Rico SCHOENINGER, Irvin W. (WI) 5250 N. Shoreland Ave. Milwaukee 17, Wise. iCentralab Div.. Globe-Union Inc.) SCHOENLAUB, Robert A. (B) Harrop Ceramic Service Co. Box 5338, Shepard ,Sta. Columbus 19, Ohio SCHOEPPEL, Norman (RI) 10 Elm Tree Dr., Mexico, Mo. (A. P. Green Fire Brick Co.) SCHOFIELD. H. Zane (RFI) Koppers Co., Inc., Research Dept. Koppers Bldg., Pittsburgh 19, Pa. SCHOLES, Addison B. (G) Interlectric Corp., Warren, Pa. SCHOLES. S. R. (GF) Box 752. Alfred, N. Y. (State University of New York College of Ceramics) SCHOLS, Leon V. F. M. St. Lambertuslaan 4a Maastricht, Holland (Regout-Matthey) SCHOONOVER, I. C. (B) National Bureau of Standards Washington 25, D. C. SCHOTSMAN, J. Kruisstraat 31, Dieren, Netherlands (N. V. Enamel W orks "de Yssel") SCHOTTLAND, A. H. (G) Standard Bent Glass Co., Butler, Pa. SCHOTTS. Walter H. (MFI) 23 E. Southington Ave. Worthington, Ohio (Harrop Ceramic Service Co.) SCHRADER, David M. (R) 742 Rotch Ave., Massillon, Ohio ( Kaiser Aluminum & Chemical Corp.) SCHRAMM, Edward (WF) Onondaga Pottery Co. 1858 W. Fayette St.. Svracuse 4. N. Y. SCHRECKENGOST, Don (D F) 2617 St. Clair Ave. East Liverpool, Ohio (Homer Laughlin China Co.) SCHRECKENGOST, Viktor (D) 2265 Stillman Rd. Cleveland Heights 18, Ohio (Salem China Co.) SCHREIBER, Edward Box 948, Alfred. N. Y. SCHREIBER, Karl L. (W) "El Anfora'' S. A. Espalda Penitencieria, Mexico, D. F. SCHRICKEL, Herman H., Jr. (G) 178 E. Pulteney St., Coming, N. Y. (Coming Glass Works) SCHROEDER, Fred W. (R F I) North American Refractories Co. Research Center, Curwensville. Pa. SCHROEDER, Herbert S. (R) 6 Conover Ln., Red Bank, N. J. (Carborundum Co.) SCHUCK. John F,, Jr. (WI) R.R. 1, Apple Creek, Ohio (Alite Div., U. S. Stoneware Co.) SCHUEXZEL. Ernest C. (W) Cavo Dr.. Poughkeepsie, N. Y. (International Business Machines Corp.) SCHULHOF, Andres Lozadur, Grandes Fabricas Argentinas de Ceramica, S. A. Boulogne, F.C.N.G.B. Buenos Aires, Argentina SCHULTZ, Donald G. (S) 3119 Woodworth, Hazelcrest, 111. (Chicago Brick Co.) SCHULTZ. Jack M. (W) Aluminum Co. of America 91(1 New Center. Detroit 2. Mich. SCHULTZ, James B. (S) 1321 E. Robinson St. North Tonawanda, N. Y. (National Gypsum Co.) SCHULTZ, John. Jr. (E) General Electric Co. Metallurgy & Ceramics Lab. Appliance Park, Bldg. 5, Rm. 249 Louisville, Kv. SCHUMACHER.' William G. (M) 122 Chandler Lane Hoffman Estates 2, Roselle. 111. (National Cvlinder Gas Co.) SCHURECHT, H. G. (W FI) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. SCHURTZ, D. D. (GF) Sharp-Schurtz Co. 301--303 Lincoln Ave. Lancaster, Ohio SCHWAB, Leon B. (R) 214 E. Home St., Vandalia, Mo. (Harbison-Walker Refractories Co.) SCHWARTZ, Bernard (BI) 35 Dogwood Dr. Downingtown, Pa. (International Resistance Co.) SCHWARTZ, Jerome W. (W) Sascha Brastoff Products, Inc. 11521 W. Olympic Blvd. Los Angeles 64, Calif. SCHWARTZ, M. A. (BI) WCRRL, Aeronautical Research Lab. WA.D.C. Wright-Patterson AFB, Ohio SCHWARTZ WLDER, Karl (W FI) A C Spark Plug Div. General Motors Corp. Flint 2, Mich. SCHWEICKHARDT, William K. (R) Walsh Refractories Corp. 10! Ferry St., St. Louis 7, Mo. SCHWEITZER, Howard V. (M) Schweitzer Equipment Co. 3764 Ridge Rd., Cleveland 9, Ohio SCHWENKLER, Edward P. 979 Grove St., Elmira, N. Y. SCHWIETE, Hans-Emst Institut fur Gesteinshuttenkunde Mauerstrasse 5, Aachen, Germany SCOTT, J. W. (W) 7650--Western Electric Co., Inc. Hawthorne Station, Chicago 23, 111. SCOTT, Murray R. (GFI) Bausch & Lomb Optical Co. 635 St. Paul St., Rochester 2, N. Y. SCOTT, Robert M. (R I) 4619 Druid Ln., Dayton 9, Ohio (Norton Co.) SCOTT, Roger F. (GI) 911 E. Main St., Millville, N. J. (Armstrong Cork Co.) SCOTT, William D. One Canyon Rd., Berkeley 4, Calif. SCOTT, W. J. (W) Western Electric Co., Inc. 2500 Broening Hwy. Baltimore 24. Md. SEABRIGHT, Clarence A. (W) 17541 Daleview Dr., Lakewood 7. Ohio (Harshaw Chemical Co.) SEABRIGHT. Edward C. (E) 6107 W. Mill Rd., Flourtown, Pa. (Philco Corp.) SEAN OR, J. G. (S) 2300 W. Tuscarawas St. Canton 8, Ohio (Bonnot Co.) SEARCY, Alan W. (B) Division of Mineral Technology University of California Berkeley 4, Calif. SEARLE, Alfred B. 62, Moorcliffe, Skircoat Moor Rd. Halifax, England (Consultant) SEARSON, Leslie James Oakes & Co. (Riddings) Ltd. Jacksdale, Notts, England R oster 99 SEASE, John B. SETCHEL, Hayden Merritt (G) Box 3164. Clemson College Sta. 105 Tenth St., Streator, 111. Clemson, S. C. (Owens-Illinois) SEATON, Max V. (.BF) SEVERIN, Harold Food Machinery it Chemical Corp. 110-D West Blvd., Pittsburg, Calif. 161 E. 42nd St., New York 17, N. Y. SEVERSIKE, Carroll L. (W) S^ ^ UININ'(G, George F. (W) 23 Race St., Frenctown, N. J. per Makers Importing Co., Inc. (Frenchtown Porcelain Co.) fS. Second St., Easton, Pa. SEWELL, Dave W. (.S) IAN, Harry D. (W I) Pomona Terra Cotta Co. 220 W. Third, Peru, Ind. Pomona, N. C. (Square D Co.) SEYBERT, Earl K. (R) SECOR, Robert B. (B) Davison Chemical Co. Filtrol Corp. Div. W. R. Grace & Co. 3250 E. W ashington Blvd. 101 X. Charles St., Baltimore 3, Md. Vernon 23, Calif. SEYMOUR, Samuel L. (G) SECORD, Robert N. (\V) 26 Crystal Dr., Oakmont, Pa. Godfrey L. Cabot, Inc. (Pittsburgh Plate Glass Co.) Research & Development Dept. SHAFFER. E. F. (G) 38 Memorial Dr., Cambridge 42, Mass. Ohio Power Co. SECRIST, Dliane R. 65 E. Main, Newark. Ohio 2486 Weston Ave., Niagara Falls, N. Y. SHAFFER, Paul C. (G) SEDENKA, Anthony (E) 85 Chapel St., Seneca Falls, N. Y. 1086 Magnolia Dr., W ashington, Pa. (Sylvania Electric Products, Inc.) (B. F. Drakenfeld & Co., Inc.) SHAH, Chunilal P. SEELEY, Clarence E. (G) Bombay Potteries & Tiles Ltd. Glass Products Co. Pipe Rd., Kurla, Bombay 37, India Box 926, Santa Barbara, Calif. SHALEK, Peter D. (W) SEELEY, E. L'. (W ) 526 Lake St., Oak Park, 111. 800 Lotus Ave., Chester, W. Va. SHAND, Errol B. (G) (Harker Pottery Co.) 155 Reynolds Ave., Corning. N. Y. SEEM ANN,. Wilhelm (Coming Glass Works) Pipersgatan 3, Stockholm, Sweden SHAND, Rodger L. (E) SEETS, Dewaine 230 Woodale Rd. 1110 W. Springfield, Urbana, 111. Oakville, Ont., Canada SEGELER, C. G. (M) (Ferro Enamels (Canada) Ltd.) American Gas Assn., 420 Lexington Ave. SHANDS, Everett H. (E) New York 17, N. Y. 1930 Harlem Blvd., Rockford, 111. SEIDEL, Joseph (W) 211 Davey St., Bloomfield, N. J. (Westinghouse Electric Corp.) SE IPE L, Robert B. (G) Blue Ridge Glass Corp. King!sport, Tenn. S H UJ, VWolfram (G) ss Containers Inc. W Santa Fe Ave. --Los; At ngeles 58, Calif. SELLERS, George A. (R) 315 E. Crescent Ave., Elmhurst, 111. (Plibrico Co.) (O. Hommel Co.) SHANER, Frank C-, Jr. (R) Richard C. Remmey Son Co. 1012 35th St., N. W., Canton 9, Ohio SHANER. Herbert J. (R) Ramtite Co.. 2563 W. 18th St. Chicago 8. 111. SHANKLE, Richard G. Box 288, Alfred, N. Y. SHANKS, Douglas Shanks & Co. Ltd., Victorian Pottery Barrhead, Near Glasgow, Scotland SHANNON, H arry F. (E) United States Steel Corp. SELLERS, John T. (RI) Applied Res. Lab., Monroeville, Pa. 52 Broadway, Jackson, Ohio SHAPIRO, Howard (BI) * (Durex Refractories Co.) 222 E. 56th St., New York 22, N. Y. SELSINGr Jorgen (B) (Svlvania Corning Nuclear Corp.) 1316 Noble St., Barberton, Ohio SHAPLAND, James T. (R) (Ohio Brass Co.) 2513 Collins Rd., Pittsburgh 35, Pa. SEMMELMAN, John O. (WI) (United States Steel Corp.) D entists' Supply Co. of New York SHARDLOW, L. Russel (BI) 500 W. College Ave., York, Pa. , Radio Corp. of America SEMPLE, John Metal Porcelains Ltd., Cornwall Rd. Somerville, N. J. SHARP, Donald E. (GF) Smethwick 40, Staffs, England Libbev-Owens-Ford Glass Co. SEM PLE, William A. (R) Aluminum Co. of Canada, Ltd. Gen. Tech. Dept., 1700 Sun Life Bldg. Montreal, Que., Canada SENK, Johann Vienna XVII Dornbacherstr. 29, Austria (Radio Fabrik IngelenPorzellan Fabrik) SENTERS, Walter (S) Washington Brick & Lime Co., Box 2198 Spokane, Wash. SENTRY SANITARY CORP. (Marvin E. Abrams) Box 427 Mannington, W. Va. SEPHTO N, H. J. (G) 1701 E. Broadway, Toledo 5, Ohio SHARP, E. W. (R I) Pedro, Ohio (Lawrence Refractories Clay Co.) SHAVER, Richard C. (B) 2 Hamilton St., Auburn, N. Y. (Cowles Chemical Co.) SHAVER, W. W. (GF) 130 E. Fourth St., Corning, N. Y. (Coming Glass Works) SHAW, Anthony E. (S') Natco Corp., 327 Fifth Ave. Pittsburgh 22, Pa. SHAW, Charles T., Jr. Box 1316, Georgia Tech. Sta. Atlanta, Ga. SHAW, Clarence F. (W I) Dominion Glass Co. Ltd. Chappie St., Hamilton, Ont., Canada R. R. 1, Trevor, Wise. (Pickard, Inc.) S tffc lC E PORCELAIN SHAW, L. I. (X I) ^ M lA M E L , INC. 1616 Ocean Ave., Apt. 16 ^ ^ T a u l S. Cecil) Brill & Christie Sts. Santa Monica, Calif. Newark 5, N. J. (Consultant) SERVIS, Donald H. (W) SHAW, Myril C. (M FI) Robertson Mfg. Co., Box 848 563 Gates St., Philadelphia 28, Pa Trenton 5, N. J. (Asbestos Textile Institute) Vol. 3G, No. 10 (1957) SHAW, Orvella Box 627, Alfred, X. Y. SHAW, Robert R. 1101 Campus Pky., Seattle 5, Wash. SHAW, Ronald H. (S) L. E. Shaw Ltd., Box 996 Halifax, Nova Scotia, Canada SHAW, Ronald R. 137 Inglis St. Halifax, Nova Scotia, Canada SHAYNA, Michael (S) 506 S. Railway St. Swift Current, Sask., Canada (Western Clav Products Ltd.) SHEARER, W alter L. (R) Bartley Crucible & Refractories, Inc. 15 Muirhead Ave., Box 358 Trenton 3, N. J. SHEARER, Wayne B. (R) 364 Bensel Rd. Shore Hills, Landing. N. J. (Reaction Motors, Inc.) SHEAROUSE, Lee A. (W) 326 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) SHEEHAN, Robert W. (W) Box 38, Saxonburg, Pa. (Du-Co Ceramics Co.) SHEETS, H erbert D. (R I) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio SHEHEEN, Alexander (X) Standard Oil Co. (Indiana) Engineering Res. Dept. 2400 New York Ave., W hiting, Ind. SHELDON, John L. (G) 179 Dodge Ave., Coming, N. Y. (Corning Glass Works) SHELDON, R. S. (E) 2215 Wilson Ct., St. Joseph, Mich. (Whirlpool Corp.) SHELL, Haskiel R. (B) U. S. Bureau of Mines Electrotechnical Experiment Sta. Norris, Tenn. SHELLEY, C. B. (RI) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. SHELTON, Philo S., Jr. (G) 130 Burr St., Fairfield, Conn. (Zell Products Corp.) SHENANDOAH SILICA CO., INC. (Herreld D. Thropp) 190 W. State St., Trenton 8, N. J. SHENANGO CHINA, INC. (Geo. B. Zahniser) New Castle, Pa. SHEPHERD, John F. (E l) Shepherd Chemical Co. 2803 Highland Ave. Norwood, Cincinnati 12, Ohio SH ERRILL, Ernest (M) Westwood Ceramic Supply Co. 610 Venice Blvd., Venice, Calif. SHERRILL, Robert R. (E l) 425 Canyon Dr., Glendale 6, Calif. (Bulwark Corp.) SHERWOOD, Robert F. (W FI) c/o Mr. W. Harold Reid, Alfred, N. Y. (Smith, Hinchman & Grylls Associates, Inc.) SHEVLIN, Thomas S. (R FI) Engineering Experiment Station Ohio State University Columbus 10, Ohio SHIFF, Tom (R) Villa Ridge Addition, R. R. 2 Godfrey, 111. (Laclede Christy Works. Refr. Div. H. K. Porter Co.) SHIMADA, Hachiro Shimada Glass Laboratory No. 2867, 1-Chome, Sanno Ota-ku, Tokyo, Japan SHIMADA, Kuro Toyo Glass Co., Ltd. No. 47 Shimo-3-Chome Fukushimaku, Osaka, Japan SHIMER, J. B. (GI) Knox Glass Co. Knox, Pa. R o st e r 101 5H1MMEN, Norman C. (\V) 2348 Ventura Dr., R. R. 4 Walled Lake, Mich. (Champion Spark Plug Co.) SH 1PE, Paul J. (R) Moraine Prod. Div., General Motors Corp. ^ ^ ^ 2 0 Wisconsin Blvd., Dayton 1, Ohio Linden E. (W) Crestview Rd., Columbus 2, Ohio ^^TOrton Ceramic Foundation) SHIPLEY. R. A. (SI Natco Corp.. 327 Fifth Ave. Pittsburgh 22, Pa. SH IPPY , Gordon D. (E) 2720 W. Chambers, Milwaukee, Wise. (A. O. Smith Corp.) SH IVELY. Robert R., Jr. (G) 2416 Gulf Bldg.. Houston 2. Texas ( Olin Mathieson Chemical Corp.) SHOEMAKER. Donald W. (R) Corhart Refractories Co., Inc. 1600 W. Lee St.. Louisville 10, Ky. SHOEMAKER. George W. (S) Arketex Ceramic Corp., 6 N. Walnut St. Brazil. Ind. SH O FFX ER . James E.. Jr. (G) 118 Cherokee Rd.. Nashville 5, Tenn. (Ford Motor Co.) SHOFSTALL. X. F. (B) General Electric Co. Specialty Electronic Components Dept. 1811 LeMoyne Ave., Svracuse 8, X. Y. SHONEBARGER, F. J. (G) General Electric Co. _- Glass Technology Lab. 1133 E. 152nd St., Cleveland, Ohio SH O X K W ILER , Francis P. (R I) 2516 Milford Dr., Bethel Park, Pa. (Harbison-W alker Refractories Co.) SH OO K, Thurston W. (M) 2569 McVey Blvd., W. W orthington, Ohio (H arrop Ceramic Service Co.) K, William B. (I) 1 Chatham Rd.. Columbus 14, Ohio T, Lyle E. (W) 12 Park Forest Ave. State College, Pa. (Erie Technical Ceramics. Div. Erie Registor Corp.) SH O PH ER . Sterling D. (R I) 404 E. Summit, Mexico, Mo. (Mexico Refractories Co.) SHORTER, A. J. Bdhnybridge Silica & Fireclay Co. Ltd. Bonnybridge, Stirling, Scotland SHORTER, W. H. (G) Emhart Manufacturing Co. 333 Homestead Ave., Hartford 2, Conn. SHREMP, Raymond M. (R) 227 S. Clay St., Zelienople, Pa. (Lava Crucible-Refractories Co.) SH U K LE. Archie A. (W) . G1459 Schafer Dr., Flint, Mich. (A C Spark Plug Div. General Motors Corp.) SHULZE. Charles E. (BI) R. R. 2, Box 325. Ashland. Ky. (Big Run Coal & Clay Co.) SHUMAN, Albert (G) Polarizing Instrument Co. Irvington-on-Hudson, New York, N. Y. SICKER, Richard (WJ) 1302 Taft Ave., Lawton. Okla. (Crucible Steel Co. of America) SIDWELL, John L. (M) Box 67, East Palestine. Ohio (H. C. Spinks Clay Co.. Inc.) SIEBER, Karl E. (G) Haven Hills. R. R 1. Albion. Mich. (Corning Glass Works) iRT, Robert (S) ennings Point Brick Works, Inc. ox 150, Beacon, X. Y. SIEFERT, A. C. (GF) Owens-Coming Fiberglas Corp. Newark, Ohio Vol. 30, No. 10 ( lfl.JT) SIEGR1ST, Paul F. (W) 111 Roycroft Rd. East Syracuse. X. Y. ( General Electric Co.) SIEGWALD. C. R. (W I) 4420 San Carlos Ave.. Tampa. Fla. I Elgee Potterv Co.), SIEKMAXX, John F. (R) Aluminum Co. of America 520 X. Michigan Ave., Chicago 11, 111. SIEVERT, Guilio E. (R) 833 Oregon Ave., San Mateo, Calif. (Gladding, McBean & Co.) SIGWART. Harry J.. (G) 732 Beechurst Ave. Morgantown, W. Va. (Seneca Glass Co.) SIKES, James W. (W) Florida Tile Industries, Inc., Box 451 608 Prospect St., Lakeland, Fla. SILK. Karl _ Messrs. Jury Holloware Ltd. Brierley Hiil, Staffs, England SILVERMAN, Alexander (GFI) University of Pittsburgh 2525 Cathedral of Learning Pittsburgh 13, Pa. SILVERMAN, William B. (GFI) Owens-Illinois, Technical Center 1700 N. Westwood Ave., Toledo 1, Ohio SIMAVILLA, Juan M. Cristalerias Rigolleau S. A. Berazatequi, F.C.N.G.R. Buenos Aires, Argentina SIMCOCK, J. H. 6 Lovatt Ave., Milehouse Newcastle, Stafford, England SIMISOX. A. L. (GI) Owens-Coming Fiberglas Corp. Toledo, Ohio SIMMEN, Fred G. (W ) 964 Terrace Blvd., Trenton 8, N. J. (Fairfacts Co.) SIMMINGSKOLD, Bo Glasinstitutet i Vaxjo, Smedjegatan 3 Vaxjo, Sweden SIMMONS, E. E., Jr. (M) 455 S. Oakland Ave., Pasadena 5, Calif. (Consultant) SIMMONS, George A., Jr. (G) Pittsburgh Plate Glass Co. Res. Labs., Creighton, Pa. SIMMONS, Milton L. (E) Ferro Corp., International Div. 4150 E. 56th St., Cleveland 5, Ohio SIMON, A. G. (W ) 8530 Wentworth St., Sunland, Calif. (Gladding, McBean & Co.) SIMONDS WORDEN W H ITE CO. (F. R. Henry) 1101 Negley PI. Dayton 7, Ohio SIMONS, T. Mitchell, Jr. (W I) 9186 E. Jaylee Dr. Temple City, Calif. (B. F. Wagner & Co.) SIMONSEN, Eduardo C. Companhia Paulista de Mineracao Caixa Postal 3008, Sao Paulo, Brazil SIMONSEN, Victor G. Ceramica Sao Caetano S. A. Caixa Postal 278, Sao Paulo, Brazil SIMONSON, Robert B. (B) Harvey Aluminum Co. 190th Si W estern, Torrance, Calif. SIMPSON, Alexander J. (W) Westinghouse Electric Corp. Ceramics Section 7325 Penn Ave., Pittsburgh 8, Pa. SIMPSON, Frederick H. (EJ) 1521 W. 51st., Seattle 7, Wash. (Boeing Airplane Co.) SIMPSON, Harold E. (GFI) State University of New York College of Ceramics, Alfred. N. Y. SIMPSON. John A. (S) F. B. McFarren Ltd. Streetsville, Ont., Canada SIMPSON, John D,, Jr. (S) Statesville Brick Co., Box 471 Statesville, X. C. SINCERE. John F., Jr. (E) 618 X. Pine St.. Mt. Prospect, 111. (Industrial Publications, Inc.) SINCLAIR. Robert R. (R I) 510 S. Osage Ave., Inglewood, Calif. (Missouri Refractories Co.) SINGER. Felix (F) Kerainos House. 46, Castlemaine Ave. South Croydon, Surrey, England (Consultant ) SINGLETON. Eric Oughtibridge Silica Firebrick Co. Suetley. Vorsup, England S1ROVY, George (E) Century Vitreous Enamel Co. 6641 S. Narragansett Ave. Chicago 3S, 111. SISKA, Albert H. (E l) 822 Elli- St.. Ashland. Ohio (Ferro Corp.) SISSONS, Gordon H. (S) 320 First St. Medicine Hat. Alta.. Canada (Medicine Hat Brick & Tile Co., Ltd.) SITTIG. Marshall (G) American Lithium Institute, Inc. 32 Nassau St.. Princeton, N. J. S1XT. Lawrence F. (W) Box 443, East Liverpool, Ohio INew Castle Refractories Co.) SJOGREN. John K. (R) Prospect St., Princeton, Mass. (Norton Co.) SKELLY. John C. (W) Trenton Potteries Co. 311 X. Clinton Ave., Trenton, N. J. SKEOCH, Thomas A. 608 Second St., Golden, Colo. SKEOCH, Walter K. (M) Southern California Minerals Co. 320 S. Mission Rd. Los Angeles 33, Calif. SKINNER, Kenneth G. (W I) 4223 First St., S. E,, Apt. 203 Chesapeake Gardens Washington 20, D. C. (Naval Research Laboratory) SKINNER, Roger D. (G) 10 Lisle Lane, W inchester, Ky. (Dominion Minerals Div. Riverton Lime & Stone Co.) SKOGEN, Haven S. (G) 2524 N. Dora, Franklin Park, 111. (E. I. du Pont de Nemours & Co.) SKURCENSKI, Anton (G) H. I. Thompson Fiber Glass Co. 1733 Cordova St., Los Angeles 7, Calif. SKWARLO, Edward (G) 706 S. Ioka, Mount Prospect, 111. (Vacuum Ceramics, Inc.) SLAUGHTER, James A. (G) _ Pittsburgh Plate Glass Co., Box 15 Crystal City, Mo. SLAUGHTER, John I. (B) Corning Glass Works Res. & Development Div. Corning, N. Y. SLAYTER, Games (GF) Owens-Coming Fiberglas Corp. Case Ave., Newark, Ohio SLICK, E. E., Jr. (R) Haws Refractories Co., 407 Main St. Johnstown, Pa. SLIFER. Rodney F. (R) North American Refractories Co. 50 Church St., New York 7, N. Y. SLUSS, Olen R. (W) 715 S. Chapel St., Louisville, Ohio SLYH, John A. (BFI) American Encaustic Tiling Co., Inc. Lansdale, Pa. SMALL, Carlton F., Jr. (R) 9 Hawthorne Rd., Cinnamon Hill Bridgeport, Pa. (E. J. Lavino & Co.) R o ster 103 SMALLEY, Howard F. (E l) Perneo Corp., Research Div. 2554 Greenmount Ave. Baltimore 18, Md. SMELT, J, A. M. Bibliotheekcentrale TkV. Philips' Gloeilampenfabrieken hoven, Holland r, William D. (B) anford Research Institute Menlo Park, Calif. SMITH. Adrian F. (G) 80 E. Third St.. Corning. X. Y. (Corning Glass Works) SMITH. Alden .1. (W R. R. I. Carey, Ohio (I'orcelain Products Inc.) SMITH, A. O., CORP. (W. A. Deringer i 3533 X. 27th St., Milwaukee 1, Wise. SMITH, Arnold X. Pilkington's Tiles Ltd. Clifton Junction, Manchester, England SMITH, C. A. (R FI) Mexico Refractories Co. Better Refractories Bldg., Mexico, Mo. SMITH, Dudley C. (G) Oakdale Dr., Millville, N. j. (Kimble Glass Div., Owens-Illinois/ SMITH, Earl R. (R) Marquardt Aircraft Co. 16555 Saticoy St., Van Nuys, Calif. SMITH, Gail (G) Corning Glass Works Eugene C. Sullivan Labs. Corning, N. Y. . SMITH. G. Sherwood Department of Ceramic Technology Pennsylvania State University University Park, Pa. SMITH, Harlan D. (R) Wellsville Fire Brick Co. Wellsville, Mo. SMITH, Harry W. (W) 3608 Gleason Dr., Chattanooga, Tenn. M. Steward Mfg. Co.) S ^ B ^ Hillard A. (W I) ^ l^ B u c h a n a n Rd., Metuchen, N. J. (Rheem Manufacturing Co.) SMITH, Howard J. (W) 51 Godwin Ave., East Paterson, N. J. (Titanium Alloy Mfg. Div. National Lead Co.) SMITH, H. Russell (M) Box 757, East Liverpool, Ohio - (Croxall Chemical & Supply Co.) SMITH, James United Fireclay Products, Ltd. 140 W. George St. Glasgow C. 2., Scotland SMITH. James N,, Jr. (D) "Arborlaen", R. R. 5, New Bern, N. C. (Arborlaen Gardenware) SMITH, J. Ernest (X) . 233 Riveria Ave., Sarasota, Fla. (Ceram-I-Cast Corp.) SMITH, John Jacob (G) 1404 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) SMITH, J. Ryan (W) Fairfacts Co., Fairfacts St. Trenton 8, N. J. SMITH, J. Talbot (M) 217 Elm Ave., Morrisville, Pa. (United Clay Mines Corp.) SMITH, Karl W. (R) Charles Taylor Sons Co. Box 58 Annex Sta. Cincinnati 14, Ohio SMITH, Kenneth E. (D FI) American Art Clay Co. 4717 W. 16th St. ^ d h fian ap o lis 44, Ind. S l ^ B . Kenneth M. (R) ^B W ited States Dept, of Interior Bureau of Mines, College Park, Md. SMITH, Leand (SI) Box 294, Darlington, Beaver Co., Pa. (Central Commercial Co.) vrOL. 36, No. 10 (1957) SMITH. Lorar F W) O. Homme! Cc 4747 E. - :~_i Los Angeles, Laid S M I T H , Peter Yv W> 736 Flora.& Dr Palo Alto, Calif. (Thermo Marrrials, Inc.) SMITH, Riciara D. (I) Ferro Cor: Far East Div. 130 Xathar F.i 205 Princess Bldg. Kowloon H rrg Kong SMITH. Richa-r M R1 215 Serera 5a Coming. X. Y. (Corning Tar? Works) SMITH, R. K F.F 149 Rcyr.: as Are.. Coming, X. Y. (Corning 3-ass Works) SMITH, Ror-aia ` Box 847 .-_ire-a. X. Y. SMITH. Row'.aa: D G) 12 Woo-aawr Ave.. Coming, N. Y. (Corning j i '5 Works) SMITH. R. Ta.-rras 1108 Main 5: Rolla, Mo. SMITH, Sidney I_ 16 Munson Sa. Le Rov, N. Y. SMITH & STONE, LTD. (T. Wold) Georgetown. Ont.. Canada SMITH. William E. (G) 5030 Janet Syivaaia, Ohio ( Owens-Tlimotsl SMITH, William L (M) Georgia Marble Co. Calcium Products Div., Tate, Ga. SMITH, William R. (X) 20 DeLancy Dr.. Geneva, N. Y. SMITH-MILLER. Jorge Casilla 162-D Cristalerias ce Chile S. A. Santiago. Chile SMOAK, J. Fletaher. Jr. Box 2641. College Sta., Clemson, S. C. SMOCK, Alden W. iG) 413 Greer. Acres Dr.. Huntsville Ala. (Army Ballistic Missile Agency) SMOKE, Edward J. (W) 11 Edgewooe Rd.. Mettirhen. X. J. (Rutgers. Toe State University School oi Ceramics) SMOOT, Jack M. (DI) Chamblee. Ga. (Dogwood Ceramics) SMOTHERS. W. J. (B) Ohio Brass Co_ Barberton, Ohio SMYLY, James P. t.BI) Box 4123 Chattanooga, Tenn. (American Lava Corp.) SMYTH. Harclc T. (G) Rutgers. The State University School oi Ceramics New Brunswick. X. J. SNELL. Richarc G. iG) 1717 Calumet Ave., Toledo 7. Ohio (Libbev-Oweus-Ford Glass Co.) SNIDER, Carl A_ Jr. (G) 4820 Girarc Rd.. Pittsburgh 27, Pa. (Kaiser Ahtminum & Chemical Sales Inc.) S N I D E R . S t u n M. (S) 325 Club - "r_ Salisbury, N. C. (Tavlor O ar Products Co.) SNOW. L. James S Miffiir.vC.'r P i (Alliance Car Product Co.) SNOW, Roland 3. (RF) United Stares Steel Corp. Applied Res. Lab.. Monroeville, Pa. SNYDER. Ernest B. (RI) Wheeling Steel Corp. Steubenitlle South Plant Steubenville Ohio SOBOX, Leon E. General Abrasive Co. 2000 College Are.. Niagara Falls, X. Y. SOCIETA ITALIAN A REFRATTARI MARGHESA AZIONARIA (Domeniec Qaeomelli) Via Industrie 52. Casella Postale 308 Marghera. Yeuiee. Italy SOCIETE FRANAISE DE CERAMIQUE (Pol Paquin) Service de Documentation 23. rue de Cronstadt Paris XV, France SOCIETE PROFESSIONNELLE DES PRODUITS FRANAIS DE TERRE CUITE (M. Jacques Labansat) 23, rue de Cronstadt Paris XV, France SOCIETY OF GLASS TECHNOLOGY (R. W. Douglas) "Thornton" Hallam Gate Rd.. Sheffield 10, England SOCONY MOBIL O IL CO. (W. B. Stevens) 150 E. 42nd St., New York 17, N. Y. SODERSTRUM. William K. (SI) 374 Davis Rd., Batavia, III. (Structural Clay Products Research Foundation) SOLBERG, Archie N. (B) University of Toledo Research Foundation 2801 W. Bancroft, Toledo, Ohio SOLOMON, Earl (RI) 1657 Boston Ridge Rd. Orchard Park, N. Y. (Electro Refractories & Abrasives Corp.) SOLVAY PROCESS DIV.. ALLIED CHEMICAL & DYE CORP. Librarian, Box 271, Syracuse 1, N. Y. SOMANY, O. M. Hindusthan National Glass Mfg. Co., Ltd. 2. Wellesley PL. Calcutta 1, India SOMIYA. Shigeyuki (B) Pennsylvania State University Dept, of Geochemistry University Park, Pa. SOMMER, Alfred (W ) 45 John St.. Highland Park. N. J. (Ferroxcube Corp. of America) SOMMERS, Robert H. (W) Hevi-Duty Electric Co. 2040 W. Wisconsin Ave. Milwaukee 1, Wise. SOMMERVILLE, J. L. (GI) 338 Wood St., Clarion, Pa. I Owens-Illinois) SONDLES, Merrill C. (W) 38 Fifth Ave., Sistersville, W. Va. (Paden City Pottery Co.) SONTZ, Arthur (RI) 8054 S. Crandon Ave., Chicago 17, III. (United States Steel Corp.) SOSMAN, Robert B. (H onorary, BFI) Rutgers, The State University School of Ceramics New Brunswick, N. J. SOUTH, Furman, Jr. (R) Lava Crucible-Refractories Co. First National Bank Bldg. Pittsburgh 22. Pa. SOUTHERN POTTERIES. INC. (H. W. Kibler) Box 279 Erwin, Tenn. SOWERS, Robert M. (G) 8 Edgerton Ln., Dearborn, Mich. (Ford Motor Co.) SOWMAN, Harold G. (R) Minnesota Mining & Mfg. Co. Central Res. Lab. 2301 Hudson Ave., St. Paul 6, Minn. SOXMAN, Edwin J. (I) Box 117, Alfred, N. Y. SPAIN, Richard W. (G) 2315 Drummond Rd., Toledo, Ohio (Owens-Illinois) SPANGENBERG, William C. (MI) 756 Auburn Ave., Buffalo 22, N. Y. (Titanium Alloy Mfg. Div. National Lead Co.) SPANOUDIS, Louis (G) Kimble Glass Co. 1700 N. Westwood Ave., Toledo, Ohio SPARKS, Edgar W. (W) 406 Unaka Way, Erwin, Tenn. R o ster 105 SPARROW, Paul F. (R) 2447' Old W ashington Rd. Bridgeville, Pa. ( Norton Co.) SPE IL , Sidney (GI) Johns-Manville Research Center Manville, N. J. STN^CCE, C. F. ( 1) 5 Hartford St., W orthington, Ohio hicago Vitr eous Corp.) s M cCE. Harold I. (W) 429 W. Islay St. Santa Barbara, Calif. SPENCER, Charles D. (GF) 2113 Taylor Rd., Cleveland 12, Ohio (Lamp Dept., General Electric Co.) SPENCER-STRONG, G. H. (EFI) 109 Witherspoon Rd., Baltimore 12, Md (Pemco Corp.) . SPENGLER, H. H. (G) General Electric Co. Lamp Div., Glass Technology Lab 1133 E. 132nd St., Cleveland 10, Ohio SPERR1NG, Richard F. 111-A X. Ninth St., Festus, Mo. SPIN K S, H. C,, CLAY CO., INC. (R. B. Carothers) Box 829 Paris, Tenn. SPIN NER, Sam (G) National Bureau of Standards Washington, D. C. SPIR ES, Stephen T. (R I) North American Refractories Co. Mt. Union, Pa. SPIR K O , Edward J. Box 827, Alfred, N. Y. SPLANN, Mary Theresa (G) Corning Glass Works, Corning, N. Y. SPOERRY, Henry J. Schmidheiny & Co., Ltd. Heerbrugg, (St.G.) Switzerland SPO RE, William D. (W) Midway Lane, East Liverpool, Ohio (H om er Laughlin China Co.) SPRIGGS, Richard M. W. Nevada St., Urbana, 111. Ira E. (W FI) . Vanderbilt Co., 230 Park Ave. York 17, N. Y. SPR O U L, James D., Jr. Delevan, N. Y. SPURCK, Richard F. (W) Manford Ln., Wilton, Conn. (Machlett Laboratories) SPYUT, Albert B. (G) Raytheon Manufacturing Co. 55 Chapel St., Newton, Mass. SQUARE D CO. (Ralph E. Hanna) Molded Insulation Div., Peru, Ind. SQUIER, Arthur A. (S) 1616 Walnut St., Philadelphia 3, Pa. (Distributor) SQ U IE R . Charles A. (G) Owens-Illinois 1700 X. Westwood Ave. ` Toledo 7, Ohio SRUOGA, Valerio Industrias Wilde S.R.L. San Martin 683 Buenos Aires, Argentina STAATLICHE PORZELLAN MANUFAKTUR BERLIN (Gerhard Muller) Hartmannstrasse 1-3 (13a) Selb/Oberfr. U. S. Zone, Germany STAATS, Henry N. (E) Analco Services Co. 6306 N. Cicero Ave., Chicago 30, 111. STADDEX, Thomas B. (WJ) Metal & Therm it Corp. Carteret. N. J. S A D L E R , Leo E. (G) ^ ^ B p 5 7 Plymouth St., Windsor, Conn. ^ ^ Ip la rtfo rd -E m p ire Co., ^ ^ T )iv . Emhart Mfg. Co.) STAFFICKER, Charles F. (G) 506 Grandview Ave., Vineland, N. J. (Kimble Glass Co.) Voi.. ISO, No. 10 (10.")7) STAFFORD, Ray (M) Southern Calif. Minerals Co. 320 S. Mission Rd. _ Los Angeles 33, Calif. STAFFORD, W. L. (RFI) Johns-Manville Research Center Box 159, Manville,*N. J. STAHMANN, John A. (B) 4275 Verdugo Rd. Los Angeles 65, Calif. (Gladding, McBean & Co.) STALEGO, Charles J. (G) 227 N. Fifth St., Newark, Ohio (Owens-Corning ` Fiberglas Corp.) STALTER. Thomas L. (EH Northern Pky., Baltimore 14. Md. ( Pemco Corp.) STAMPS, Murray R. (W) Canadian Porcelain Co. Ltd. Box 428, Hamilton, Ont.. Canada STANDARD BRICK & TILE CORP. (Clifford A. Kleyniever) 123 N. W. Fourth St. Evansville 8, Ind. STANDARD ULTRAMARINE & COLOR CO. (L. F. May) Huntington 18, W. Va. STANGL, J. M. (W ) Stangl Pottery, Trenton 4, N. J. STANGL POTTERY (J. M. Stangl) Trenton 4, N. J. STANISLAW, T. Stanley (W) Box 354, Centerport, L. I., N. Y. (Sylvania Electric Products, Inc.) STANLEY. David E. Box 106, Alfred, N. Y. STANLEY, George V. (E) 2752 W. 90th PI. Evergreen Park 42, 111. (Crane Co.) STANLEY, Robert J. (G) M. H. Detrick Co., 10600 Puritan Ave Detroit 38, Mich. STANNARD, Wilford T. (D) J. A. Dedouch Co., 608 Harrison St. Oak Park. 111. STANSFIELD, James R. D. (S) Streator Brick Co. Div. Hydraulic-Press Brick Co. Streator, 111. STANTON, Francis. Jr. Box 827, Alfred, N. Y. STANWORTH, John Edwin 74 Ashlawn Rd. Rugby. Warwick, England (British Thomson-Houston Co., Ltd.) STAPLETON, Robert E. (W) 22 Chestnut St., Franklinville, N. Y. (Hi-O Div., Aerovox Corp.) STAPP. John A., Jr. (G) Union Carbide Corp., Silicones Div. Box 44. Tonawanda, N. Y. STAR PORCELAIN CO. (Daniel W. Luks) Muirhead Ave., Trenton 9, N. J. STARK CERAMICS. INC. (J. H. Stewart) Box 230 Canton 1. Ohio STARK. G. E. Carlos (W) Gladding. McBean & Co. 2001 Los Feliz Blvd. Los Angeles 39, Calif. STARK. W. F. (E) Promat Division, Poor & Co. 851 S. Market St., W aukegan, 111. STARKEY, Daryle D. (M) R. R. 1, Willard, Ohio (Starkev Machinerv. Inc.) STARKEY, Edward A. (M) 1068 Woodhill Rd,, Mansfield, Ohio (Starkev Machinerv. Inc.) STARKEY, Elmer A. (R) 22397 Fairlawn Circle. Apt. 10 Fairview Park 26, Ohio (North American Refractories Co.) STATHIS, Andrew W. (RI) 5917 Cary, Cincinnati 24, Ohio (Charles Taylor Sons Co.) STAUDT. August (W) 264 Water St.. Perth Amboy, N. J. STAUFFER CHEMICAL CO. (M. P. Kerins, Jr.) 380 Madison Ave., New York, N. Y. STAUFFER, Kenneth H. B. (W) 49 X. Water St., Spring Grove, Pa. (Continental Ceramic Corp.) STAYROLAK1S. J. A. (B) 211 June Dr., Pittsburgh 36, Pa. (Crucible Steel Co. of America) STEARNS, William E. (E) A. O. Smith Corp. 3533 X. 27th St., Milwaukee, Wise. STECK. Alfred B. <B) 35 Lincoln St.. Melrose 76, Mass (Metallurgical Associates, Inc.) STECK. C. O. (G) F. J. Kress Box Co., One 28th St. Pittsburgh 22, Pa. STEELE, A. Preston, Jr. (S) J. C. Steele & Sons. Inc. Box 951. Statesville, N. C. STEELE, C. X. (S) J. C. Steele & Sons, Inc. Box 951, Statesville, N. C.. STEELE, F. Montgomery (S) J. C. Steele & Sons, Inc. Box 951, Statesville, N. C. STEELE. G. Allen (R) 101 MacGregor Dr,, Trotwood, Ohio (Simonds Worden W hite Co.) STEELE, Harry L. Shorter & Son Ltd., Copeland St. Stoke-on-Trent, England STEELE, Howard E. (G) Westinghouse Electric Corp. Hoult Rd., Fairmont, W. Va. STEELE, Hoyt P. (E) Benjamin Electric Mfg. Co. Des Plaines, 111. STEELE, J. C , Jr. (SF) J. C. Steele & Sons, Inc. Statesville, N. C. STEELE, J. C., * SONS, INC. (J. C. Steele, Jr.) Statesville, N. C. STEELE, Richard E. (M) Ram, Inc., 1064 W. Fifth Ave. Columbus 8, Ohio STEELE, William Perrin (S) Pine Hall Brick 8t Pipe Co. Winston-Salem, N. C. STEFL, Donald J. (R) Freeport Brick Co. Box 402, Freeport, Pa. STEIL, Roy C. (G) 3450 Garfield St., Denver 5, Colo. (Woodbury Chemical Co.) STEIMKE, Frank C. (RI) Walsh Refractories Corp. 101 X. Ferry St., St. Louis, Mo. STEIN, Colin H. John G. Stein & Co. Ltd. Bonnvbridge, Scotland STEIN, Ronald C. Messrs. John G. Stein & Co., Ltd. Bonnybridge, Scotland STEIN, Sidney J. (B) International Resistance Co. 401 N. Broad St., Philadelphia 8, Pa. STEINBOCK, E. A. (R) Whip-Mix Corp., 411 W. Avery St. Louisville 8, Ky. STEINER, Harry C. (G) General Electric Co. Power Tube Dept. Schenectady- 5, N. Y. STEINH OFF, Fred L. (SFI) Brick & Clay Record-- Ceramic Industry 5 S. Wabash, Chicago 3, 111. STE1XROEDER, Fritz Didier-Werke A. G., Lessingstr. 16 Wiesbaden, Germany STELLE, John A. (S) Arketex Ceramic Corp., Brazil, Ind. STENQUIST, Donald R. (B) 1105 Gillmore, Apt. 6 Richland, Wash. (General Electric Co.) STEPHEN'S. Richard A. (R) General Refractories Co. 1520 Locust St.. Philadelphia 2, Pa. R o ster 107 TEPH EXSO X, William B. (B) STILLWATER CLAY PRODUCTS CO. General Electric Co. (J. P. Duffy) Lock Drawer 32 Bldg. 100, AGT, Cincinnati 15, Ohio Uhrichsville, Ohio TERLING CHINA CO. STILSON, Charles E. (B) (William T. Pomeroy) Box 13, Cedar Lake, Mich. East Liverpool, Ohio (General Electric Co.) TERLING GRINDING W H EEL CO. STOCK, Donald F. (R) - (W. R. Morgan) Box 801, Tiffin, Ohio 289 Maxwell Dr., Pittsburgh 36, Pa. I ^ W N G , Harry S. (G) (Harbison-Walker Refractories Co.) ^ ^ H i i n g Glass Works STOCKDALE, George F. (G) ^BWrrodsburg, Ky. 49 Corning Blvd., Corning, N. Y. ' TERRY, J. Patrick (RJ) (Coming Glass Works) 4219 Woodlawn Ave., Seattle 3, Wash STOCKSLAGER, Theodore F. (W) (Boeing Airplane Co.) Carborundum Co. . TERRY, W. Michael (E) 24800 Lakeland Blvd. 5124 Fifth X. E., Seattle 5, Wash. Cleveland 32, Ohio (Boeing Airplane Co.) STODDARD, Stephen D. (RI) TETSON, Harold W. (B) 1526-B 43rd St., Los Alamos, X. M. R. R. 2, Painted Post, N. Y'. (Los Alamos Scientific Lab.) (Corning Glass Works) STOEN, Roger C. (SI) TETSON, William C. (W I) Cannelton Sewer Pipe Co. Box 44, Saxonburg, Pa. Cannelton, Ind. ' (Saxonburg Ceramics) STOHL, Alfred A. (W ) TETTIN1US, K. E. (W) 374 North St., Sun Prairie, Wise. Lapp Insulator Co., Inc., Le Roy, N. Y. (Wisconsin Porcelain Co.) TETTXER, Donald H. (GI) STOHL, L. A. (W) 976 Center Ave., Lancaster, Pa. Wisconsin Porcelain Co. (Radio Corp. of America) 120 Lincoln St., Sun Prairie, Wise. TEUBENVILLE POTTERY CO. STOIA. John Z. (W JI) (W. J. Mould) Box 1030 314 W. Witherbee, Flint, Mich. Steubenville, Ohio (A C Spark Plug Div. TEUERNAGLE, J. H. (G) General Motors Corp.) Brockway Glass Co., Inc. STOLLER, Arthur I. (WJ) W ood St., Brockway, Pa. Radio Corp. of America TEVENS, E. G. (X ) Princeton, N. J. 1750 Sycamore, Apt. C STOLTE, Norman H. (E l) El Segundo, Calif. ' 3974 Orchard Rd. (North American Aviation, Inc.) Cleveland Heights 21, Ohio 1TEVNS, Frank J. (W I) (Harshaw Chemical Co.) 41* Prospect St., Nutley 10, N. J. STONE, Alan (R) (Isolantite Mfg. Corp.) 77 Houghton Circle, Corning, N. Y. 1TEVENS, Joe (R) (Corning Glass W orks) Murray Refractories Co., Box 338 STONE, Benjamin (W ) Murray, Utah California Crafts iTEVENS, L. M. (R) 43340 N. Gratiot, Mt. Clemens, Mich. 2907 Alabama St., La Crescenta, Calif STONE, Conrad A. (G) ^ ^ b d d in g , McBean & Co.) 93 S. Remington Rd. ' ^ H n S, Robert P. (R I) Bexley, Columbus 9, Ohio ^^roicago Fire Brick Co. (Federal Glass Co.) 1625 W. 104th PL, Chicago 43, 111. STONE, C. P. TEVENS, W. B. (W) Ferramic Industries, Ltd. Socony Mobil Oil Co. 25 Hydeway, Welwyn Garden City ISO E. 42nd St., New York 17, N. Y. Herts, England TEV EN SO N , James K., Jr. (R I) STONE, F. R. (R) R. R. 2, Mundelein, 111. Canada Firebrick Co., Ltd. (Norton Co.) 4741 St. Ambroise St. iTEVENSON, Samuel (W) Montreal, Que., Canada 1967 Grafton Rd., Elyria, Ohio STONE, Robert J. (M) (Harshaw Chemical Co.) John W. Higman Co. TEVENTON, Kenneth 24 State St., New York 4, N. Y. John Steventon & Sons Ltd. STONE, Robert L. (BFI) Cledford Works Dept, of Ceramic Engineering Middlewick, Cheshire, England University of Texas, Austin 12, Texas TEWART, Isaac (G) STONE, S. A. (M) 21 Porter Rd., W est Orange, N. J. Deister Concentrator Co. (Consultant) 901 Glasgow Ave., Fort Wayne, Ind. TEWART, James (M) National Engineering Co. STONG, Guy E. (G) 926 W. Water St., Elmira, N, Y. Simpson Mix-Muller Div. (Coming Glass Works) 549 W. W ashington Blvd. STOOKEY, Stanley D. (GF) Chicago 6, 111. 145 Pritchard Ave., Coming, N. Y. TEWART. J. H. (S) (Coming Glass Works) Stark Ceramics, Inc., Box 230 STOOPS, Robert F. (BI) Canton 1, 'Ohio Metallurgical Products Dept. TEWART. John A. (GI) General Electric Co., Box 237 419 Locust Ave.. Washington, Pa. Roosevelt Park P. O. (B. F. Drakenfeld & Co., Inc.) Detroit 32, Mich. TEWART, Malcolm (M) STORER-FOLT, John P. (RJI) Commercial Minerals Co. 1 Benlamond Ave., Apt. E. 310 Irwin St.. San Francisco 7, Calif. Toronto 13, Ont., Canada TEWART, Wilfred H. (R) (Refractories Engineering & 15 E. Elizabeth St., Schererville, Ind. Supplies. Ltd.) (Sunbeam Corp.) STOTT, A. E. T IIEFf , VW. C. (W) Edward Johns & Co., Ltd. $ tS. Wilson Blvd. |Clemens, Mich. Clemens Pottery Co.) Armitage Sanitary Pottery Nr. Rugeley, Stafford, England STOTT, Joseph A. (R) TILL. Henry P,, Jr. (R) North American Refractories Co. 31 Stoneleigh Rd., Worcester 6, Mass. 1012 National City E. Sixth Bldg. (Norton Co.) Cleveland 14, Ohio OL. 36, N o . 10 (1057) STOUT, John R. (W) 706 E. Franklin, Macomb, 111. (Illinois Edison Porcelain Div. McGraw Edison Co.) STOUT, Joseph V. (E) 102 S. Fourth Ave. Highland Park, N. J. (Metal & Thermit Corp.) STOUT, Lester L. (S) Ohio State University Research Foundation Columbus 10, Ohio STOVER, Edward R. (B) General Electric Co. Research Lab. 247 MB Box 1088, Schenectady 8, N. Y. ST. PIERRE, Philippe D. S. (B) General Electric Co., Research Lab. Metallurgy & Ceramics Div. Box 1088, Schenectady, N. Y. STRADLEY, J. Grant (I) 1950 Korbel Ave., Lot 93 Columbus 11, Ohio STRADLEY, Norman (E l) Minnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn. STRAIGHT, Lee H. (M) Straight Engineering Co., Adel, Iowa STRAIN, R. E. (E) Alliance Ware, Ltd. Box 550, Vancouver, B. C., Canada STRATTON, Warren 3711 15th N. E., Seattle 5, Wash. STRATTON, Mrs. W. B. (D) Pewabic Pottery, 10125 jefferson Ave. Detroit 14, Mich. STREATOR BRICK CO., DIV. HYDRAULIC-PRESS BRICK CO. (James R. D. Stansfield) Streator, 111. STRIMPLE, J. H. (B) National Lead Co., Titanium Div. Box 58, South Amboy, N. J. STRINGFELLOW , Allen E. (W) 544 Woodland Ave., Haddonfield, N. J. (I-T-E Circuit Breaker Co.) STROBACH, Carl G. (E) Rheem Mfg. Co. 7600 S. Kedzie Ave., Chicago, 111. STROD, Arvid J. (M I) Industrial Metals Improvement Co. The Park Bldg., Pittsburgh 22, Pa. STROH. Donald G. (WJ) 303 N. Whitney St., Carroll, Iowa (Universal-Rundle Corp.) STRONG, Kenneth B. (W ) 4624 Belmont Park Terrace Nashville 12, Tenn. (Titanium Alloy Mfg. Div., National Lead Co.) STROTT, Adolf J. (R) 597 Crooks Ave., Clifton, N. J. (National Beryllia Corp.) STROUD, Harold L. (M) 2909 Bembridge Rd., Royal Oak, Mich. (Champion Spark Plug Co.) STROUP, Philip T. (R) Aluminum Co. of America Box 772, New Kensington, Pa. STROUPE, Howard E,, Jr. (W I) Wheeling Tile Co., Wheeling, W. Va. STRUCTURAL CLAY PRODUCTS INSTITUTE (Harry C. Plummer) 1520 18th St.. N. W. Washington 6. D. C. STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION (Paul V. Johnson) Geneva, 111. STUBBINS, William J. (W) Rio Atoyac 26-14, Mexico 5, D. F. (Consultant) STUBBS, John M. (M) 45 Laubert Rd., Conshohocken, Pa. (National Gypsum Co.) STUCKEY, Jasper L. (X) 1911 Sunset Dr., Raleigh, N. C. (North Carolina Dept, of Conservation & Development) R o ster 100 5TUNTZ, Robert P. (R) Babcock & Wilcox Co. 105 S. LaSalle, Chicago 3, III. iTUPAKOFF DIV. CARBORUNDUM CO. (Robert A. Barr). Latrobe. Pa. iTURM, William F. ^ 631. Alfred, X. Y. Charles A. (R) ^Roxbury Rd., Forest Hills Pittsburgh 21, Pa. (Vesuvius Crucible Co.) WBBARAO. Eleswarapu C. POS-A Stevemlale Dr. Pittsburgh 21. Pa. 5UBRAHMANYAM, Sanga V. (G) I-H Arlene Village, Millville, N. J. (T. C. Wheaton Glass Co.) 5UBRAMAXIAN, D. R. Burn & Co. Ltd. Refractory & Ceramic Group 12 Mission Row. Calcutta 1, India 5UCH CLAY CO. (M. M. McHose, Jr.) Box 47, Perth Ambov, N. J. iULEX'S. Henry A. (M) Ceramic Supply Co., Div. Ferro Corp. Box 151, Crooksville, Ohio SULLIVAN, Eugene C. (GF) Corning Glass Works, Coming, N. Y. 5ULLIVAX, James D. (E) 4272 X. 24th PI.. Milwaukee 9, Wise. (A. O. Smith Corp.) SULLIVAN, John D. (B FI) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio SULLIVAN, Joseph C. (G) 38 Fulton St., Coming, N. Y. (Coming Glass Works) SULLIVAN, Paul A. (GI) .624 Adeline Dr., Webster, N. Y. (Bausch & Lomb Optical Co.) SUMMERS, E. W. (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio *LL, Ferrall N. (E) Henry St., Uniondale, L. I., N. Y rdwick, Hindle, Inc.) . H. (GF) 2131 Lindsay Rd., Pittsburgh 35, Pa. (Westinghouse Electric Corp.) SUPAR Ceramic Institute Bandung. Java, Indonesia SUR ENAMEL & STAMPING WORKS, LTD. (M. M. Sur) 24 Middle Rd., Entally Calcutta 14, India . SUR, M. M. Sur Enamel & Stamping Works, Ltd. 24 Middle Rd., Entally Calcutta 14, India SURFACE COMBUSTION CORP. (Harvey C. Weller) 2375 Dorr St. SURTFoLleEdEoT1,, HOahrioold Kaylene Laboratories, Waterloo Rd. London, N. W. 2, England (Kaylene (Chemicals) Ltd.) SUTHERLAND, Clark (S) Robinson Clay Product Co. 65 W. State St., Akron 9, Ohio SUTHERLAND. Frank R. (R I) 511 Rainbow Dr., Kokomo, Ind. (Haynes Stellite Co.) SUTPHN, F. G. (X) 2605 Central Ave., Middletowm, Ohio SUTTON, Paul M. (G) Corning Glass Works. Corning, N. Y iUTTOX. Willard H. (B) General Electric Co.. Rm. 3872, MOSD 31*18 Chestnut St., Philadelphia 4. Pa. ; m o x , w. j. (Ri) ^ H i g h St., Allred, N. Y. ^ ^ H h t e University of New York, ^^ollege of Ceramics) iVEC. J. J. (W FI) Ceramic Industry 5 S. Wabash Ave., Chicago 3, 111. l . .it;. NO. 10 (l!f>7) SYTKIS, Voldemars D. (R) Dept, of Mines & Tech. Surveys Industrial Minerals Div.- Ceramic Sect. 40 Lvdia St., Ottawa. Out., Canada SWAIN. Arthur B. (G) _ Owens-Illinois " 1700 X. Westwood Ave. Toledo 7. Ohio SWAIN. Richard S. (GJ) 509 Kibler Ave., Newark, Ohio ( Owens-Corning Fiberglas Corp.) SWALM, Phaon H. (W ) Box 178, Kingston, Ont.. Canada (Frontenac Floor & Wall Tile Co., Ltd ) SWANSON, Carl H. 770 Techwood Dr., N. W., Atlanta. Ga SWANSON. Leroy M. (RJ) 15 Carolina St.. Jamestown. X Y. ( Norton Co.) SWANSON. W arner D. (S) Metropolitan Brick. Inc. Bessemer. Ta. SWEARINGEN, Jack C. (G) United Can & Glass Co. Box 90, Hayward, Calif. SWEITZER. Mark (W) 747 N. Mentor, Pasadena, Calif (S. Paul Ward, Inc.) SWENTZEL. John P. (RI) 130 Beacon Hill Dr.. Metuchen. X. J. (Carborundum Co.) SWEO, Benjamin J. (E F I) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio SWICA. Joseph J. Box 165, Alfred, N. Y. SWICKER, Victor C. (GF) 907 Floral Dr., Whittier, Calif. (Consultant) SW IFT, Howard R. (GF) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SWIGART. Joseph J. (M) 3014 Middletown Rd., Pittsburgh 4, Pa. (Vitro Rare Metals Co.) SWINDELL-DRESSLER CORP. (Philip Dressier) Box 1888 Pittsburgh 30, Pa. SW INEHART, David C. 808 E. 42nd, Apt. D, Seattle 5, Wash. SWINNERTON, Bertram B. (W ) 157 Hampden Park, Tiffin, Ohio (American Radiator & Standard Sanitary Mfg. Co.) SW INNERTON. George R. (M) Box 944, Alliance. Ohio (Moore & Hunger) SYLVANIA ELECTRIC PRODUCTS, INC. (B. S. Etlefson) 1740 Broadway, New York 19, N. Y. SYLVESTER. George R. (M I) Sylvester & Co. 17706 Miles Ave., Cleveland 28, Ohio SYNAR. Elizabeth A. (W) Synar Ceramics. Inc. Box 924. Muskogee, Okla. SZYMASZEK, Jan Walter (R) 121 Muir Ave. Niagara Falls. Ont.. Canada (Metals Research Labs. Electro Metallurgical Co.) T TABATA. Seiichi Sasaki Glass Mfg. Co., Ltd. 1.1-Chome Yokokawa-Bashi Sumida-ku, Tokvo. Tapan TAELER. David H. (J) 890 Elton Ave., Bronx 51. X. Y. (Seaporcel Metals. Inc.) TAILBY, Roland V. (W I) Stylon Corp-. Milford, Mass. TAJKOWSKI, Edward G. (G) General Electric Co. Silicone Products Dept Waterford, N. Y. TAKAHASHI. Kakuichiro (F) Nippon Glass Co. Ltd. No. 20, 1-chome Shiba Shinbashi Minato-ku. Tokyo, Japan TALWALKAR, T. W. 8 Bagmati Rd., Jamshedpur, India (Tata Iron & Steel Co., Ltd.) TANBERG, Ragnar Drammens Glassverk Drammen, Norway TANNER. James T.. Jr. 2953 Winchester Ct., Raleigh, X. C. TAO. Yung (G) 501 S. Garfield St., Burlington, Iowa (Svlvania Electric Products, Inc.I TARXXCKl. Walter J. (WI I 8417-C Loch Raven Blvd. Towson 4, Md. I Friez I n st ru men t Div. Bendix Aviation Corp.) T \R X n P O L . Milton S. (G) 943 Ninth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) TASH. Daniel B. (M) 516 W. Brightwood St. Monterey Park. Calif. (Southern California Minerals Co.) TASHIRO, Megumi Institute for Chemical Research Kyoto University Yoshidahon machi, Sakyoku Kvoto, Japan TATE. Frank E. (W I) 310 Tenth St., Lincoln, 111. (Stetson China Co.) TATEM, William A. (R) 7 Willow Ln., Carle Place, N. Y. (U. S. Navy) TATNALL, R. Francis Box 827, Alfred, N. Y. TAUBER. Charles B. (B> 921 Signal Rd.. Signal Mountain, Tenn. (American Lava Corp.) TAUBER. John A. (RI) 3190 Mayflower Rd. Plymouth Meeting. Pa. (E. T. Lavino & Co.) TAUBLIEB. Marvin E. (R) Kaiser Aluminum & Chemical Sales. Inc. 21q57 Seaburv Ave. Fairview Park 26. Ohio TAYLER, John B. (W) Louisville Pottery Co.. Inc. 228 E. Bloom. Louisville 8, Ky. TAYLOR, Alan W. (B) Pennsylvania State University Dept, of Ceramic Technology University Park, Pa. TAYLOR, Charles D. (S) 219 Corriher Ave.. Salisbury, X. C. (Tavlor Clay Products, Inc.) TAYLOR. Charles H. (R) 8 E. Sutton Ave., Moorestown, X. J. ( R. C. Remmev Son Co.) TAYLOR. Don (G) T. C. Wheaton Co.. Millville. X. J. TAYLOR, Donald E. (R) 2522 Rhodes Dr., Augusta, Ga. ( Babcock & Wilcox Co.) TAYLOR. Ernest C. 900 Main St.. Brockway. Pa. T \ Y L O R . Fran (G) Gay Fad Studios, Lancaster, Ohio TAYLOR. Hiram D. (B) Dianionite Products Manufacturing Co. Shreve. Ohio TAYLOR. Howard U. (WI) Centralab Div.. Globe-Union Inc. <>0(l E. Keefe Ave.. Milwaukee 1, Wise TAYLOR. J. J. (W) Ohio Brass Co., Barberton, Ohio T \Y LOR. Kenneth M. (R) 1045 River Rd., Lewiston, N. Y. (Carborundum Co.) TAYLOR. Louis J. (W ) Laboratory Equipment Corp. Box 151. St. Joseph. Mich. R ostf.r 111 LOU, Nelson W. (BF) Minnesota Mining & Mfg. Co. Fluorochemicals Div. 900 Bush Ave., St. Paul 6. Minn. LOR. Richard A. (S) Clay Products Assn, of the Southwest 109 Perry-Brooks Bldg., Austin, Texas Robert B. (S) S ^^^kral Clay Products Foundation, Geneva, 111. . 1 ^ ^ Rohert M,, Jr. (R) 1210 N. Jefferson, Mexico. Mo. (A. P. Green Fire Brick Co.) 7LOR, SMITH & TAYLOR CO. ( E. P. Wright) Chester, W. Va. 'LOR, Thomas J. (R) 816 Sterner Mill Rd., Trevose, I'a. (R. C. Remmev Son Co.) . LOR, Walter E.. Jr. (W) Thomas Works Delta Star Electric Div. H. K. Porter Co.. Lisbon, Ohio YLOR, William C. (GF) Coming Glass Works, Corning, N. Y. AGUE, A. D. (R) Babcock & Wilcox Co., Box 923 Augusta, Ga. AGUE BRICK & T IL E CO. (L. R. Boyd, Jr.) Box 329, Teague, Texas YGUE, Jo M,, Jr. (GI) Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio AGUE, William T. 209 McCord St., Marietta, Ga. ETER, John N. (E) 677 Wilmot Rd., Deerfield, 111.' (Thomas C. Thompson Co.) ETOR, Paul (BF) 72 E. Main St., Somerville, N. J. (Central Commercial Co.) FFT, Glenn C. (S) Claycraft Co., Shawnee, Ohio FFT, Phillip W. (SFI) Claycraft Co., Box 866 GAunbus 16, Ohio ^ ^ v illa r d H. (S) ^ ( P P 'a f t Co., Upper Sandusky, Ohio GELLABORATORIET (Brick Laboratory), (Christer Enberg) Drottning Kristinas vag 45 Stockholm O, Sweden ICHMANN, Henry F. (G) Henry F. Teichmann, Inc. Box 1705, Pittsburgh 30, Pa. 1ICHMANN, Newton N. (G) 316 Hardy Dr., Bridgeville, Pa. (Henry F. Teichmann,`Inc.) NNERY, 1/Lt. Victor J. (BJ) U. S. Army Signal Eng. Labs. Chemical Physics Branch Ferroelectrics Unit Ft. Monmouth, N. J. fRMAN, Mark J. (R) . Babcock & Wilcox Co. 135 Cedar St., New York 6, N; Y. -RRY, Griffin E. (E) 602 E. Willow, Wheaton, 111. (Hotpoint Co.) CRRY, Jack H. (E) 4321 Fairfield Ave., Fort Wayne, Ind. (General Electric Co.) 2XAS BRICK CO. (W. T. Gill. Jr.) Box 510, Brownwood, Texas IXAS V IT R IFIE D P IP E CO. (Paul E. Hoey) Box 117 Mineral Wells, Texas CATCHER GLASS MFG. CO., INC. (Roy S. Arrandale) 1901 Grand Central Ave., Elmira, N. Y. HEOBALD, Erwin F. (S) ^ M 6 -- 18th St., N. W., Canton 3, Ohio ^ ^ B tro p o lita n Brick, Inc.) Karl B. (M) ^ ^ ^ 9 Talbot St. Kew Gardens, L. I., N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) OL. 36, No. 10 ( 19.17) TH [ELKE, Norman R. (B) National Carbon Co., Research Labs. Box 6116, Cleveland 1, Ohio THIEM ANN. John W. (W I) Aliffe Div.. U. S. Stoneware Co Box 119. Orrville, Ohio THIEMECKE, Harry W. (JVFI) Homer Laughlin China Co. Newell, W. Va. TH IESS. L. E. (WF) Insulator Dept., General Electric Co. Box 57, Baltimore 3, Md. THOMAS, Charles A. G. E. J. & J. Pearson, Ltd.., Firebrick Works, Stourbridge, England THOMAS, Charles W. (Honorary) Clifton House, Old Swinford Stourbridge, England (E. J. & J. Pearson, Ltd., Firebrick Works) THOMAS, David W. (W I) Tvcer Pottery, Inc. . Armstrong St., Roseville, Ohio THOMAS. Everett A. (R) 2703 Shaffer Ave.. Cincinnati 11, Ohio fChas. Tavlor Sons Co.) THOMAS, George L. (G) Holophane Co., Inc., Newark, Ohio THOMAS. H. H. (M) 35 Highboy Court, Red Bank, N. J. (Pemco Corp.) THOMAS, Richard V. (R) 25 Catharine St., W orcester, Mass. (Norton Co.) THOMAS, Robert B. (GJ) National Bureau of Standards W ashington 25, D. C. THOMAS. Robert H. (B) 2160 Delaware Dr. Cleveland Heights 6, Ohio (Case Institute of Technology) THOMAS WORKS DELTA-STAR ELECTRIC DIV. H. K. PO RTER CO. (Frank Mason) Lisbon. Ohio THOMASON, James F. (W JI) R. R. 4, Spartanburg, S. C. (Kohler Co.) THOM PSEN, Robert S. (R) 2418 Ruby Dr., Augusta, Ga. (Babcock & Wilcox Co.) THOMPSON, A. Paul (RF) Research Laboratories Eagle-Picher Co., Joplin, Mo. THOMPSON, Charles W. (R) 216 Dell St., Johnstown, Pa. (Bethlehem Steel Co.) THOMPSON, Clyde L. (RFI) 4922 New Plymouth Rd. Pittsburgh 27, Pa. (Harbison-Walker Refractories Co.) THOM PSON, E. A. (E) Crane Steelware Ltd. Industrial Centre 5 Quebec, Que., Canada THOMPSON, Franklin S. (W ) 25 Schenck Ave., Matawan, N. J. (Atlantic Tile Mfg. Co.) THOMPSON, Fred W. (R) 240A Thomas Dr., W ilmington 6, Del. (E. I. du Pont de Nemours & Co.) THOMPSON, Frederick S. (RF) Corhart Refractories Co. 940 Commonwealth Bldg. Louisville 2, Ky. THOMPSON, G. L. Borax & Chemicals, Ltd. 35 Piccadilly. London. W. 1. England THOMPSON, John D. (E) 2434 Evergreen Dr., Royal Oak, Mich (Briggs Mfg. Co.) THOMPSON, Matthew S. (G) Puerto Rico Glass Corp., Box 4272 San Juan, Puerto Rico THOMPSON, Noel M. (R) 721 Shady Lane, Pittsburgh 34, Pa. (Lumnite Cement Div. Universal Atlas Cement Co.) THOMPSON, Thomas E. (E) Box 252, Williams Bay, Wise. (Thomas C. Thompson Co.) THOMPSON, Lt. William M,, Jr. (BI) WADC, Area B, Box 8308 Wright-Patterson AFB, Dayton, Ohiu THOMSON, Homer G. (R) 12101 W. Howard St. Milwaukee 14, Wise. (Allen Bradley Co.) THOMSON, James K. (W) 2 McMaster PL, Bath, N. Y. (Westinghouse Electric Corp.) THOR, Murner E. (RI) 318 Parkhurst Blvd., Buffalo 23, N. Y. (Norton Co.) THORNE, James E. (W J) Case Manufacturing Corp. Robinson, 111. THORNGATE, Bruce W. (W) 1841 Oakland Blvd. Fort Worth. Texas ( Roval Tile Mfg. Co.l THORNTON, George A. (M) Ottawa Silica Co., Box 437 Ottawa, 111. THORNTON. H. Richard (EJ) National Bureau of Standards W ashington 25, D. C. THORNTON, Paul E. (W I) 1708 La Taza Dr., La Canada, Calif. (Ferro Corp.) THRASHER, William R. (D) 270 Merriman Rd., Akron 3, Ohio (Model Ceramics, Inc.) THROPP, Herreid D. (M) Shenandoah Silica Co., Inc. 190 W. State St., Trenton 8, N. J. THUENER, Everett E. (W) R. R. 5, Old State Rd. Schenectady 6, N. Y. (General Electric Co.) THURNAUER. Hans (BFI) Minnesota Mining & Mfg. Co. Central Research, Ceramics Section Hudson Rd. & McKnight Ave. St. Paul 6, Minn. THUT, Walter W. A. G. Hunziker & Cie, Lagerstrasse 1 Zurich, Switzerland THW IN. Maung Oo Box 216, Alfred, N. Y. TIBBALS, Harvey L. (M I) 542 Santa Barbara Rd. Berkeley 7, Calif. (Minneapolis-Honeywell Regulator Co.) TICE. Henry B,, Jr. (W) 537 S. Ninth Ave.. La Grange, 111. (Zenith Radio Corp.) TICKLE, William H. F. "Brown Stacks,'' Caldy Nr. West Kirby, Cheshire, England (Manchester College of Technology) TIDD, Elbert D. (W) Bell Telephone Labs, Inc., Rm. 3B-266 Whippany, N. J. TIEDE, Ralph L. (G) Owens-Corning Fiberglas Corp. Case Ave., Newark,' Ohio TIERNON, Carlos H. (M) Deister Concentrator Co. 901-935 Glasgow Ave. Fort Wavne, Ind. TIFTICKJIN, John D. (W) Winburn Tile Mfg. Co. 1709 E. Ninth St., Little Rock, Ark TIGHE. Nancy J. (E) 1650 Harvard St.. N. W., Apt. 116 W ashington 9, D. C. (National Bureau of Standards) TTLLOTSON, Clifford (R) Tillotson Refractories Co. Box 398. Corona, Calif. TILLOTSON, E. Ward (GF) 505 S. Murtland Ave., Pittsburgh 8. Pa. (Mellon Institute) TINKER. Dean (M) Granville, Ohio (Ohio Kilns, Inc.) R oster 113 1PAUGH, J. R. (R I) e University of New York ege of Ceramics at Alfred Univ. ed, N. Y. UM ALLOY MFG. DIV. TIONAL LEAD CO. . J. Baldwin) Box C, Bridge Station g^M affs, N. Y. (E) pU PC hem ical Co. 3 Highland Ave. .cinnati 12, Ohio Henry M. (S) w Chemical Co., Midland, Mich. iK, Edwin (MJ) >0 Noble Rd.. Apt. 12 veland 21, Ohio eneral Electric Co.) , Henry (W) e Lane, Queenston. Ont., Canada anadian Ohio Brass Co.) ~ER, George (W) nadian Potteries Ltd. 0 Blvd. Sminaire . Johns, Que., Canada R. Herbert R. (E ) . R. 2, Box 544, West Chicago, 111. ndiana Steel Prod. Co.) .1VER. Billy R. >2/ Virginia. lllini-Village rbana, 111. -Y. Donald B. (E) 22 Hudson Ln., Fern Creek, Ky. General Electric Co.) . Elgin M. (G) 208 Marlaine Dr., Toledo 6, Ohio Kimble Glass Co.) ASEK. A. J. (R) Valsh Refractories Corp. 01 Ferry St., St. Louis 7, Mo. KINS, David E. (M) X. R. 5, Easthrook Rd., New Castle, Pa (Shenango China, Inc.) L, Arthur Q. (GF) 7325 Carroll Ave. Park 12, Md. Bureau of Standards) V. (GF) 611^W. Oregon, Urbana, 111. (University of Illinois) PING, John (R) United States Steel Corp. 525 William Penn PI. Pittsburgh 30. Pa. PING. Stanley M. 444 Cleveland Ave., Hornell, N. Y. *GAL, K. G. "Happy Home," Mannarpuram Tiruchirapalli. S. India* (Jamal Mohamed College) NO, Ralph F. (E) 410 Front St., Berea, Ohio (McGean Chemical Co.) ROK, Julius J. (G) 3344 Gallatin Rd., Toledo 6, Ohio (Owens-Illinois) R RANCE, Fred E.. Jr. (B) Pomona Tile Mfg. Co. Box 633, Arkansas City, Kans. RREYSON. William F.. Jr. (R) Aluminum Co. of America 1800 Rhodes-Haverty Bldg. Atlanta 3. Ga. STEVIW Edgar R.. Jr. (W I) 62 E. Market St.. Bethlehem, Pa. (W estern Electric C<>.) * ULOUSE. Julian II. (GFI) Owens-Illinois Box 1035, Toledo 1. Ohio >WXSEND. Franklin M. (RJ) Aluminum Co. of America Box 497. East St. Louis, III. 3WGEND. William O. (G l) Nottingham Rd. VHPnvbus 21, Ohio ^ o attelle Memorial Institute) RABERT, Loren A. (AVI) General Electric Co. 1811 LeMoyne Ave., Syracuse, N. Y. l . :u>, N o. 10 (10.Y TREDENNICK. William T. t RI) Refractory Specialties Co. 2200 W ashington Ave. Philadelphia 46. Pa. TREFFXER, Walter S. (R) 440 \V. Maple Rd. Linthicum Heights, Md. (General Refractories Co.) TRE1SCHEL. C. C. (MF1) R. T. Vanderbilt Co.. 230 Park Ave. New York 1/, N. Y. TREITLER, Theodore L. (G) Corning Glass Works, Corning, N. Y. TRENTON POTTERIES CO. Plants 1 & 2, 309 N. Clinton Ave. Box 141, Trenton, N. J. TREPTOW , Arnold W. (E) Bell Telephone Labs. Murray Hill, N. J. TREVOR, John F. Moira Rd., Woodville Nr. Burton-on-Trent, England (lohn Knowles & Co., Ltd.*) TRIBE, Harold G. Electricity Meter & Allied Ind., Ltd. Box 4. Waterloo, Sydnev, Australia TRIERER. J. Marshall (Rl 1024 Lynda Ln., Arlington. Texas (Temco Aircraft. Inc.) TRINIDAD CLAY PRODUCTS. LTD. (Harold A. Eckel) 44. South Quay Port of Spain. Trinidad. B. W. I. TRINITY CERAMIC SUPPLY, INC. ( E. O. Davidson) 100 Howell St., Dallas, Texas TRIN K LEIN . Robert L. (\V> 800 College, Cleveland. Miss. (Misceramic Tile Co.) TRIPP, Harlan P. (E l) 3605 Winchester Rd., Louisville 7, Ky. (General Electric Co.) TROMPETER, Bernard J. (M) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. TROST, Frank W. (R) Chas. Taylor Sons Co. 5 Haddon Ave., Haddonfield, N. J. TROSTEL, L. J. (R FI) General Refractories Co., Box 1673 Baltimore 3, Md. TROSTEL, Louis J., Jr. (RI) Norton Co., 1 New Bond St. Worcester 6, Mass. TROY, H. Neal (R I) Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio TROY, Walter J. (E) 888 Chili Ave., Rochester, N. Y. (Pfaudler Co.) TRUESDALE, Richard S. (I) Box 275. Alfred. N. Y. TRUMBULL. James L. 606 W. 83rd. Seattle 7. Wash. TRUMPLER, Alfred L. (W) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. TSE. Shou-cheng (WI) Box 208. Franklinville. N. Y. (Hi-Q Div., Aerovox Corp.) TSUKADA. Kenichi 6Q Shirogane Sarumachi. Shiba Minato-Ku. Tokvo. lapan TUCKER, Donald J. (M I) 2114 Winthrop Rd. Huntingdon Valiev. Pa. TUCKER, Edward F.' (R) Stebbins Engineering & Mfg. C<> 363 Eastern Blvd., Watertown, N. Y. TUCKER, Harvey C. (W I) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio TUCKER, Roland E. (W I) Trenton Potteries Co. 309 N. Clinton Ave., Trenton. N. J. TUNG. Chi Fang (E) 1958 Nokomis Ave., St. Paul 6, Minn. (Minnesota Mining & Mfg. Co.) TURBETT. Paul E. (M I) R. R. 1. Dresden Hw>\, Paris, Tenn. i H. C. Spinks Clay Co., Inc.) TURCK, Kaxmojul L. u \n -- 165 Hampden Park. Tiffin. Ohio (Sterling Grinding Wheel Co.i TVRCOTTE. Richard F. (R) A. M. Lockett & Co. Ltd. 1808 c & I Life Bldg. Houston 2. Texas TUR1SS1NL Robert iG ) Corning Glass Works, Fallbrook Plant Corning. N. Y. TURK. Harold L. Box 574. Alfred. N. Y. TURK, Richard H. (EFI) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. TURLEY. Charles L. (B) B. F. Drakenfeld & Co., Inc. Box 519. Washington, Pa. TURNBAUGH. Jerry E. 5310 33rd Ave. S.. Seattle 8, Wash TURNBULL. Edward D. (W) Euston Lead Co. 500 I'etin Ave.. S c r a n t o n 3. Pa. TURNBULL. John C. (G) Radio Corp. of America RCA-Victor Div., Lancaster, Pa. TURNER. A. A. (R) 155 Lake A\e.. Metuchen, N. J. (Carborundum Co.) TURNER. Donald Lodge Plugs Ltd.. St. Peter's Rd. Rugby. Warwick. England TURNER. John H. 73 E. 15th Ave., Columbus 1. Ohio TURNER, Mort D. (B) Calle 12 de Octubre 414 Hato Rev, Puerto Rico (Puerto Rico Minerology & Geology Section) TURNER. P. P,, Jr. (RI) 46 lmbler Dr., Cincinnati 18. Ohio (General Electric Co.) TURNER. Reginald E. (W) Monarch Tile Manufacturing. Inc. 602 S. Oakes St.. San Angelo, Texas TURNER, W. E. S. (Honorary) 30 Whitworth Rd., Ranmoor Sheffield 10, England TUTTLE. George X. (EF) Benjamin Electric Mfg. Co. Seegers Rd. fir N. W. Highway Des Plaines, III. TUTTLE, Milton .A. (R) Box 981, Alfred, N. Y. (State University of New York, College of Ceramics) TWELLS, Robert (W FI) Electric Auto-Lite Co., Spark Plug Div., Box 231 Fostoria, Ohio TWELLS. Robert G. (GI) 2824 Edgecliff Rd. New Kensington. Pa. (Pittsburgh Plate Glass Co.) TWYFORDS, LTD. Cliffe Vale Potteries Stoke-on-Trent, England TYGART VALLEY GLASS CO. (E. A. Hinkins) Box 503 Washington, Pa. TYLER, W. S., CO. (C. E. Jenks) 3615 Superior Ave., N. E. Cleveland 14, Ohio TYRRELL, Miles E. (R) Box 412. Norris. Tenn. (U. S. Bureau of Mines) TYSIXGER. Ted W. (S) Box 265. Pleasant Garden. X. C (Boren Clay Products) u UELTZ. H. F. G. (B) 380 Walnut St., Shrewsbury. Mu-v ( Norton Co.) UHRMANN, Carl J. (GF) Overlook Ct., Bellaire, Ohio (Arthur W. Schmid Co., Inc.) LEMAN. Turrell (G) 109 Virginia Ave., Aspinwall, Pa. (Pittsburgh Plate Glass Co.) LRICH, Robert J. (E) American Radiator & Stand;ard Sanitary Corp. -L541 S<. Seventh St., Louisville 8, Ky. w FRANAISE DES DUITS REFRACTAIRES TLouiise Halm) 15, Rue de Milan, Paris 9e, France JN ITED CLAV MINES CORP. (K. E. Ward) 101 Oakland St. Trenton 6, N. J. JNITED STATES BORAX & CHEMICAL CORP. (M. H. Pickard) Pacific Coast Borax Co. Div. 50 Rockefeller PL, New York 20, N. Y. JNITED STATES GYPSUM CO. (Robert Hamilton) 300 W. Adams St. Chicago 6. III. JNITED STATES STEEL CORP. (W. S. Debenham) 525 William Penn PI. Pittsburgh 30, Pa. JNIVERSAL CLAY PRODUCTS CO. (C. L. Evans) 1528 E. First St., Sandusky, Ohio JNIVERSAL DENTAL CO. (Joseph Kohn) 48th & Brown Sts. Philadelphia 39, Pa. JNIVERSAL POTTERIES, INC. (Harry E. Davis) Cambridge, Ohio UNIVERSAL-RUNDLE CORP. (A. L. Johnson) W. Keith McAfee Lab. Box 1268, Mahoningtown, P a.UNIVERSAL-RUNDLE CORP. (H . P. Wangelin) 3305 W. Forest Home Ave. Milwaukee 15, Wise. UNUM, Robert F. (W I) 811 Wilmington Ave., New Castle, Pa. (Universal-Rundle Corp.) UPTON, Lee O. (G) ^ A m erican Optical Co. ^^ ^k M ech an ic St., Southbridge, Mass. Stephen F. (B) Hartford Ave., Kenmore 23, N. Y. (Titanium Alloy Div., National Lead Co.) URNES, Sigmund (B) Pennsylvania State University Dept, of Ceramic Technology University Park, Pa. URODE, Raymond J. Box 826, Alfred, N. Y. UTAH FIR E CLAY CO. (C. H. Myers) Box 127, Salt Lake City 10, Utah V VAIL, Milford R. (RJ) 4014 Spruce St., Philadelphia 4, Pa. (Naval Boiler & Turbine Lab.) VALENCIA, Camilo (W) Plaza Rio de Janeiro No. 52-5 Col. Roma, Mexico, D. F. (Ferro Enamel de Mexico, S. A.) VALENTINE FIR E BRICK CO. DIV. A. P. GREEN F IR E BRICK CO. (W. H. Peterson, Jr.) Woodbridge, N. J. VALENTINE, Peter Cooney (M) Del Monte Properties Co. 620 Market St., San Francisco 4, Calif. VALYI. Ilsabe E. (R) 20 S. Broadway, Yonkers 1, N. Y. (A. R. D. Corp.) VAN AKEN, Robert C. (W) Sperry Gyroscope Co. Div. Sperry-Rand Corp., 1P39 Great Neck, N. Y. ^ ^ A L S T E N , Roy L. (R I) ^ B t 8 Sarasota, Detroit 39, Mich. ^ I ^ F o r d Motor Co.) VANCE. Clarence E. 1218 Superior Ave., Sheboygan, Wise. VAN CLEAVE, A. A. (R) 8100 McGroarty St., Sunland, Calif. V o l . :}>, N o . 10 ( 10">7) VAN COTT, Harrison C. (B) R.R. 1, Horseheads, N. Y. (Corning Glass Works) VAN- DER BECK, Roland (BI) Stupakoff Div., Carborundum Co. Latrobe, Pa. VANDERBILT, R. T., CO. (Ira E. Sproat) 230 Park Ave. New York 17, N. Y. VAN DERM ADE, Richard J. (R) 489 Willow Dr., Pittsburgh 16, Pa. (Carborundum Co.) VAN DRESER, Merton L. (R) Kaiser Aluminum & Chemical Corp. Refractories Research Dept. 1600 S. Main St.. Milpitas, Calif. VAN GELDEREN, L. P. N. V. Ramie Union Box 51, Enschede, Holland VAN GORDON, Donald V. (M) Metal & Therm it Corp., Rahwav, N. J. VAN HORN, Harry T. (M) 741 Floral Park Rd. Franklin Square, N. Y. (Socony Mobil Oil Co., Inc.) VAN H OUTEN, Louis A. Fabricacin de Abrasivos S. A. Casilla de Correo 24 Campana, Argentina VANICK, James S. (M) International Nickel Co., Inc. 67 Wall St., New York 5, N. Y. van NIEUWENBURG, C. J. Laboratorium voor Analytische Scheikunde ( Microanalyse) de Vries van Heystplein 2 Delft, Netherlands VAN SCHOICK, Emily C. (X F) State University of New York College of Ceramics, at Alfred Univ. Alfred, N. Y. VAN SCHOIK, Dickson M. (RI) 5950 S. Lake Shore Dr., R. R. 2 Box 109, Whitehall, Mich. (Misco Precision Casting Co.) VAN TASSEL, R. H. (E) 527 Green Tree Rd., Kohler, Wise. (Kohler Co.) VAN VLACK, Lawrence H. (BI) Dept, of Chem. & Metal. Engineering University of Michigan Ann Arbor, Mich. van WASSENHOVE, Pierre N. V. "De Sphinx" Maastricht, Holland VAN WIGGEREN, Charles G. (W I) Simonds Abrasive Co. Tacony & Fraley Sts. Philadelphia 37, Pa. VAN ZEE, A rthur F. (B) 3430 Inverness Ave., Toledo 7, Ohio (Owens-Illinois) VARSHNEI, Purshottam D. (J) U. P. Glass Works Ltd. Bahjoi, Dt. Moradabad, U. P. India VASILOS, Thomas (B) 74 Cottage Park Rd., W inthrop, Mass. (AVCO Research & Advanced Devel. Div.) VAUGHAN, W. Harry (XFI) Cherokee Brick & Tile Co., Box 58 Waterville Rd., Macon, Ga. VEALE. Jack H. (R) 406 Reedwood Dr., Joliet, 111. (Illinois Clay Products Co.) VEIGA, Roberto A. Cermica Santa Helena Ltda. Rua 15 De Novembro 38 Paranagua, Parana, Brazil VENABLE, Charles R.. Jr. (R I) 1660 S. Oak, Bartlesville, Okla. (Phillips Petroleum Co.) VENABLE, Joe G. (G) Chattanooga Glass Co. Chattanooga 10. Tenn. VENABLE. Ray H. 742 Berclair Rd., Memphis, Tenn. VERBA, Richard J. (M) Schweitzer Equipment Co. 3764 Ridge Rd., Cleveland 9, Ohio VERDUCH, Antonio G. (B) State University of New York College of Ceramics, Alfred, N. Y. VERZOCCHI, Enrico Via P. Cossa 1, Milano, Italy (Refrattari Verzocchi) VESUVIUS CRUCIBLE CO. (A. J. Jackman) Box 8275 Swissvale, Pittsburgh 18, Pa. VICARY, J. W. (E) Ervite Corp., Box 1927 Presque Isle Sta., Erie, Pa. VICTOR INSULATORS DIV. I-T-E CIRCUIT BREAKER CO. (H. Failmezger) Maple Ave. Victor, N. Y. VIDANOFF, Richard B. (GJ) General Electric Co., Quartz Plant Willoughby, Ohio VIDPLAN S. A. (Daniel Ferres) Real No. 4415, Montevideo, Uruguay VIDRIERA MONTERREY, S. A. (Alfonso F. Rodriguez) Apartado 162, Monterrey N. L., Mexico VIGER, Burnett C. (G) 130 E. Third St., Corning, N. Y. (Corning Glass Works) VILENSKY, Michel B. (R) 1515 27th Ave., San Francisco 22, Calif. (Ampex Corp.) VINAL, Francis E. (B) Radio Corp. of America 64 "A" St., Needham Heights 94, Mass. VINCENT CLAY PRODUCTS CO. (O. J. Whittemore) 615-19 State Bank Bldg. Fort Dodge, Iowa VINCENT, Edward P. (R) Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center, Pittsburgh 22, Pa. VINCENT, George L. (W I) 22026 S. Millard Ave. Richton Park, 111. (Ceramic Industry) VINES, Raymond F. (B) Dentists' Supply Co. of New York 500 W. College Ave., York, Pa. VINTHER, E. Heikel Porcelainfabriken Norden Valby Langgade 95 Copenhagen, Denmark VIOLA, Nazzareno, Jr. University Club, State College, Pa. VISCONTI di MODRONE, Raimondo Soc. Ceramica Richard Ginori 1 via Bigli. Milan. Italy VITACHROME, INC. (R. Pottinger) 421 E. Sixth St. Los Angeles 14, Calif. VITOLO, Sylvester A. (RI) Gen. Del., Long Valley, N. J. (Austenal, Inc.) VITREOUS STEEL PRODUCTS CO. IEdgar H. Wei!) 2727 Woodhill Rd., Cleveland 4, Ohio VITRO MANUFACTURING CO. (Joseph Boyce) 60 Greenway Dr. Pittsburgh 4, Pa. VODICKA, Albert L. (E) Aetna Porcelain Enameling Co. 4701 Augusta Blvd., Chicago 51, 111. VOGEL, Ralph B. (M) National Lime & Stone Co., Carey, Ohio VON TURY, Francis J. (DF) Lehigh Ave., Perth Amboy, N. J. (Vontury, Inc.) VOORHIES, John H. (W) 243 Arrow Hwy., Claremont, Calif. (Pacific Tile & Porcelain Co.) VOSE, Wilfred Winstones' Roofing Tile Works Ltd. Box 2, Plimmerton, New Zealand VOSS, Raymond O. (G) 26 Pershing St., Coming, N. Y. (Coming Glass Works) VOSS, Wendell G. (E) 27814 Rexford Rd., Bay Village, Ohio (Ferro Corp.) R o ster 117 KOV1CH. Milan, Jr. wMl) 863 Elizabeth Ave. Columbus 13, Ohio ( Godfrey L. Cabot, Inc.) w Fred _____ (5I8, Alfred, N. V. \(^ J^ flAAN , John B., Jr. (B) National Bureau of Standards, Div. 9.1 Conn. Ave. & Van Ness St., N. \V. Washington 25, D. C. \D E . Arthur "H illtop", Parkside Are. Cockermouth, Cumberland, England (Dorman, Smith Flugs Ltd.) \D E . Don E. (W) Misceramic Tile Box 1070, Cleveland. Miss, AGGONER, Jack H. (GF) 240 Quentin Rd., N., Newark, Ohio t Fiber Glass Div. Pittsburgh Plate Glass Co.) AGNER, Bruce F. (W) 186 N. Vernon Ave., Pasadena 3, Calif. ( B. F. Wagner & Co.) AGNER, Charles D. (W) B. F. Wagner & Co. 186 N. Vernon Av., Pasadena 3, Calif. AGNER, Harold C. (R) Shoreham Drive, Box 76G, R. R. 1 St. Joseph, Mich. (Zirconium Corp. of America) AGNER, Rio B. (M) 1398 Brice Rd., Reynoldsburg, Ohio (Perma Flex Mold Co.) AGSTAFF, Frank E. 5021 17th N. E., Seattle 5, Wash. AHL, Albert J. (M) A. J. Wahl, Inc., 8 Central Ave. Brocton, N. Y. AHLGREN, Wald A. B. Gustavsbergs Fabriker Gustavsberg, Sweden A I R , Eugene (W) ^ ^ ^ o n s, Inc., 2905 E. 79th St. ^ ^ ^ B a n d 4, Ohio A m T Virgil H. (E) 433 Beech St., Berea, Ohio (McGean Chemical Co.) AIVER, Gedert J. (W) 909 87th St., North Bergen, N. J. (B. G. Corp.) A K FIELD , Richard E. B. (D) Hetherington, Inc., 1200 Elmwood Ave. Sharon Hill, Pa. AKELY, Wilbur T. (GJ) Sylvania Electric Products, Inc. 825 Lexington, Warren, Pa. ALDAL, James C. 2425 Second Ave., W. Seattle 99, Wash. ALDEN, Albert S. (R) National Carbon Co., Cleveland, Ohio .'ALKER, Eugene E. (W) 220 W. Sheridan Ave., New Castle, Pa. (Universal-Rundle Corp.) ALKER, Henry E. (G) Harding Glass Co., Sta. B, Box 38 Fort Smith, Ark. /ALKER, Herbert M. (W) Walker China Co., Solon Rd. Bedford, Ohio /A LKER, John Morgan Crucible Co., Ltd. Battersea Church Rd. London, S. W. 11, England ALKER, Stuart D. (G1 112 E. Lake St.. Skaneateles, N. Y. (Hevi-Duty Electric Co.) /A LKER, Warren W. (B) 22 99 LLaaurel PL, Upper Montclair, N. J. _^_C rarapplhite Metallizing Corp.) w/ ^ H P . D. H. (W ) ore Ceramics Corp., Box 1619 KPIITggoorre, Texas /A LLA , Max R. (W ) Box 1369, Little Rock, Ark. (Winburn Tile Mfg. Co.) ' o l . :5(>, N o . 10 no.-)71 WALLACE, Arthur B. (W) 135 N. 19th St., Olean, N. Y. ( Hi-Q Div., Aerovox Corp.) WALLACE, Paul F. (B) Aluminum Co. of America Alcoa Research Labs., Box 772 New Kensington, Pa. . WALSH, Donald E. (G) Consolidated Feldspar Dept., International Minerals & Chemical Corp. East Liverpool, Ohio WALSH REFRACTORIES CORP. (A. J. Tomasek) 101 Ferry St. St. Louis 7, Mo. , . WALTER, Jake J. 131 Stanton Ave., Ames, Iowa WALTERS, Emmett L. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadwav, Toledo 5, Ohio WALTON, Jesse D., jr . (E) 3304 Fairway Rd., N. E. Atlanta 19, Ga. . (Engineering Experiment Station Georgia Institute of Technology) WALWORTH, Chester A. (G) Libbey-Owens-Ford Glass Co. Box 4278, Charleston 4, W. Va. WAMBOLD, Jack (B) Kennametal, Inc. Lloyd Ave., Latrobe, Pa. WAMPLER. Roy W. (G) Libbey-Owens-Ford Glass Co. Technical Bldg., 1701 E. Broadway Toledo 5, Ohio WANG, Chan-huan (W) 2509 N. W. Lovejoy St. Portland 10, Ore. (Tektronix, Inc.) WANG, Franklin F. Y. (E) Glascote Products, Inc. 20900 St. Clair, Cleveland 17, Ohio WANGEL1N, H. P. (E) Universal-Rundle Corp. 3305 W. Forest Home Ave. Milwaukee 15. Wise. W'ARD, George V. (R) McLain W orks, Refractories Div. H. K. Porter Co., Inc. Wellsville, Ohio WARD, George W. (G) 1049 W. 32nd Ave. Vancouver 9, B. C , Canada (Consultant) WARD, John F. (R) 551 Chester Pl,, University Heights New Brunswick, N. J. (Rutgers, The State University School of Ceramics) WARD, K. E. (M) United Clay Mines Corp. 101 Oakland St., Trenton 6, N. J. WARD, Mrs. S. Paul (M) 601 Mission St., Box 345 South Pasadena, Calif. (S. Paul W ard, Inc.) WARD, Thomas J. Box 3, Ogdensburg, N. Y. WARDE, John M. (RF) Union Carbide Ore Co. Carbide & Carbon Bldg. 30 E. 42nd St., New York 17, N. Y. WARE, Robert K. 1407-B Brackenridge Apt. Lake Austin Blvd., Austin 3, Texas WARFIELD, Robert A. (G) 2460 E. Livingston Ave. Columbus 9, Ohio (Federal Glass Co.) WARNER, Maurice F. (B) 1130 Green Bay Rd., Lake Bluff, 111. (Sierra Talc & Clay Co.) W ARRELL, Lincoln A. (R) Aluminum Co. of America 744 Broad St., Newark 2. N. J. WARREN, George (GI) Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. WARREN, William R. 153 Hillside, Clemson, S. C. WARSHAW, Israel (B) Pennsylvania State University College of Mineral Industries Universitv Park, Pa. WARSHAW, Stanley I. 228 Foster St., Brighton, Mass. WARYGA, Casimer F. (R) 863 Colwyn Rd., Jenkintown, Pa. (Frank Samuel & Co., Inc.) WASHABAUGH, Grover C., Jr. (M) New Castle Refractories Co. New Castle, Pa. WASHINGTON BRICK & LIM E CO. (Walter Senters) Box 2198 Spokane, Wash. WASHINGTON PORCELAIN CO. (E. R. Miller) Willow St. Washington, N. J. WATERS, Martin R. (W I) 22 Red Rose Way, Levittown, T.. (Wenczel Tile Co.) WATKIN, Robert W. (W ) R. R. 1, Box 173, Odessa, Fla. (Edwin M. Knowles China Co.) WATKINS. E. Charles (W JI) Chapel Rd., R.R. 3, Zanesville. Ohio (Mosaic Tile Co.) WATKINS, George B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio , WATKINS, Ray T. (S) U. S. Tariff Commission, Ceramic Div. Eighth & E Sts., N. Wr. Washington 25, D. C. WATKINS, Ens. Robert V. (GJI) BOQ--NAS, Hutchinson, Kans. WATKINS, William E. (SI) 13112 E. Seventh Ave. Spokane 66, Wash. (Gladding, McBean & Co.) WATKINS, W. J. (M) Kentucky Clay Mining Co. Mayfield, Ky. ~ WATSON, George F. (R) American Brake Shoe Co. Metallurgical Lab., Mahwah, N. J. WATSON, James F. 4663 Merle Hay Rd. Des Moines, Iowa WATT, Loren (W) Watt Pottery Co. Crooksville, Ohio WATT POTTERY CO. (Loren Watt) Crooksville, Ohio WATTS, Arthur S. (Honorary, W FI) Lord Hall, Ohio State University Columbus 10, Ohio WATTS, Richard L. 172 16th Ave., Columbus, Ohio WAUFLE, Harold E. 16)4 Greenwood St., Canisteo, N. Y. WAUGH, J. Stanley Mass. Inst, of Tech., Bldg. 20 Rm. 20-C-001, Cambridge 39, Mass. WAXLER, Roy M. (G) National Bureau of Standards Conn. Ave. & Van Ness St., N. W. Washington 25, D. C. WEATON, Ralph L. (G) St. Joseph Lead Co. Zinc Smelting Div., Monaca, Pa. WEAVER, Don S. (RJ) Weaver Materiel Service Gokey Bldg., Jamestown, N. Y. WEAVER, Harold L. (G) 303 Chestnut St., Port Allegany, Pa. (Pittsburgh Corning Corp.) WEAVER, Leonard W. (E) Bird & Son, Inc. East Walpole. Mass. WEAVER, R. A. (EF) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio WEBBER, John J. (R) 1210 Elco Dr., Maumee, Ohio (Harbison-Walker Refractories Co.) WEBER, Arthur W. (G) Corning Glass Works Corning, N. Y. R o s t e r 119 EBER, Berthold C. (B) 3833 Saranac Dr., Dayton 9, Ohio (W right Air Development Center) EBER, Charles H. (S) Port Costa Brick W orks 401 Berry St., San Francisco, Calif. EBER, Don A. (S) r Concentrator Co. lasgow Ave., Fort Wayne, Ind. Neill (G) l Institute 4400 Fifth Ave., Pittsburgh 13, Pa. EBSTER, Charles E. (RI) 311 E. Beaver St., Zelienople, Pa. (Lava-Crucible-Refractories Co.) EBSTER, David (S) Polychemicals Div. West Virginia Pulp & Paper Co. Box 832. Charleston, S. C. EEDY, Robert C. (R) Harbison-Walker Refractories Co. Box 957, Windham, Ohio EH TJE, Ernst J. 2. Hans Michelsensgatan Malmo 1, Sweden (Skanska Cementaktiebolaget) EHTJE, Karl Fredrik A /B Rorstrands Porslinsfabriker Lidkoping, Sweden EIDEL, Robert A. (G) 497 Apple Orchard Lane Webster, N. Y. (Bausch & Lomb Optical Co.) EIDENBAUM, Sherman S. (G) 59 W. Second St., Corning, N. Y. (Corning Glass Works) EIDLICH, Gilbert (M ) ' 640 E. Jefferson, Kirkwood, Mo. (Western Machinery & Engine Co.) EIDMAN, V. Wesley (R ) 201 Duncan Ave., Wilmington 3, Del. (E. I. du Pont de Nemours & Co., Inc.) EIGEL, Robert C. (R) 820 Woodlawn, Mexico, Mo. (Mexico Refractories Co.) EIL, Edgar H. (E) ^ H k o u s Steel Products Co. ^ ^ ^ W o o d h ill Rd., Cleveland 4, Ohio E W ^K urt E. Rua Batatais 472, Sao Paulo, Brazil (Quimica Industrial Barra do Pirai S/A) EIN STEIN , Alex (G) Ednalite Optical Co., Inc. 200 N. Water St., Peekskill, N. Y. EINTRITT, Donald J. (M) Baroid Div., National Lead Co. Box 1675, Houston 1, Texas EIS, Joseph H. (W I) 608 Demong Dr., Syracuse 3, N. Y. (General Electric Co.) EIS, Robert J. (W) 3902 Brownsville Rd. Pittsburgh 27, Pa. (Vitro M anufacturing Co.) EIS, Valentine E. (B) Stetson China Co., Lincoln, 111. EISE, Robert L. (G) 307 Ohio St., Somerset, Ky. (General Electric Co.) E ISEN SEEL, Charles W. (W J) Jackson Tile Mfg. Co. Box 2006, Jackson, Miss. EISS, David University of California Dept, of Engineering, Engr. 3011 Los Angeles 24, Calif. EISS, E. Joseph (BI) Dept, of Ceramic Engineering University of Texas, Austin, Texas EISS, W. Russell (R) Wellsville, Mo. (Wellsville Fire Brick Co.) EISZ, Robert S. (B) (national Telemeter Corp. JP o n tiu s Ave. ^Angeles 64, Calif. ELCH, A. Philip (BI) 7018 Glade Ave., Canoga Park, Calif. (Atomics International) OL. 36, N o . 10 (1957) WELCH, Archibald (S) Cooksville Co., Ltd. 1055 Yonge St., Toronto, Ont., Canada WELCH, James S. American Ceramic Society 4055 N. High St., Columbus 14, Ohio WELCH, John C , Jr. (B) 110 Escalona Ct., Sanfa Cruz, Calif. (A. P. DeSanno & Son) WELCH, Richard L. (R) Dominion Firebrick & Clay Products (1954) Ltd. Claybank, Sask., Canada W ELLER, Barton L. (W) Vitramon, Inc. ' Box 544. Bridgeport 1, Conn. WELLER, Harvey C. (G) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio WELLING, Charles E. (R) Ford Motor Co., Scientific Lab. Engr. Staff. Box 2053 Dearborn, Mich. WELLS, A. A. (WF) Homer Laughlin China Co. Newell, W. Va. WELLS, J. M. (W) Homer Laughlin China Co. Newell, W. Va. WELLS, Ralph G. (B) University of Michigan Engineering Research Institute E. Engineering Bldg., Rm. 4201 Ann Arbor, Mich. W ELLS, Robert M. (W) Homer Laughlin China Co. Newell, W. Va. WELSH, John J,, Jr. (G) Mississippi Glass Co. 88 Angelica St.. St. Louis 7, Mo. WELSHANS, L. T. (R) Diamond Alkali Co., Cement-Coke Div. 300 Union Commerce Bldg. Cleveland 14, Ohio W ELTE, Ralph J. (S) Summit Pressed Brick & Tile Co. Box 533, Pueblo, Colo. W ELTERLEN, James D. (W) 4630 Zane St., Los Angeles 32, Calif. (Gladding, McBean & Co.) WENCZEL, C. (W) Wenczel Tile Co., Box 908 Trenton, N. J. W ENCZEL T IL E CO. (C. Wenczel) Box 908, Trenton. N. J. W ENDT, Nelson E. (W) American Potash & Chemical Corp. 595 Foch Blvd., Williston Park, N. Y. WENGER, James A. L. Messrs. Wengers Ltd., Etruria Stoke-on-Trent, Stafford, England WENNING, W. F. (E) Ceramic Color & Chemical Mfg. Co. Box 297, New Brighton, Pa. WENTZ, B. B. (S) Beiden Brick Co. 700 W. Tuscarawas St., Canton 1, Ohio WERKEMA, Thomas E. (S) Dow Chemical Co., Midland, Mich. WERNER, Alan J. (G) 159 Watauga Ave., Corning, N. Y. (Corning Glass Works) W EST, Frank Haslemere Greenlane Buxton, Derby, England (Derbyshire Silica Fire Brick Co.) WEST, Howard F. (R) Illinois Clay Products Co. 68 N. Chicago St., Joliet, 111. W EST, Richard R. (B) Box 493, Alfred, N. Y. (State University of New York, College of Ceramics) WESTBROOK, J. H. (B) General Electric Co., Rm. 3C20 Research Laboratory, The Knolls Schenectady, N. Y. W ESTERN BRICK CO. (I. R. Cline) Danville, 111. WESTERN CLAY MFG. C. (A. C. Bray, Jr.) Box 176, Helena, Mont. WESTERN ELECTRIC CO., INC. (J. W. Scott-7650) Hawthorne Sta., Chicago 23, 111. WESTERN ELECTRIC CO., INC. (W. J. Scott) 2500 Broening Hwy. Baltimore 24, Md. WESTERN FELDSPAR M ILLIN G CO. (V. E. Magnuson) Box 671 Salida, Colo. WESTINGHOUSE ELECTRIC CORP. (John D. Harnish, Jr.) Derry, Pa. WESTLAKE, C. Rogers (W I) 1961 Christmas Run Blvd. Wooster, Ohio ( Diamonite Products Mfg. Co.) WESTMAN, A. E. R. (GF) Dept, of Chemistry Ontario Research Foundation 43 Queen's Park Crescent Toronto 5, Ont., Canada WESTMONT, O. B. (R) Johns-Manville Products Corp. Lompoc, Calif. WESTON, Ralph H. (SI) Arketex Ceramic Corp., Brazil, Ind. WEST VIRGINIA BRICK CO. (Claude F. Wiseman) Box 1071 Charleston, W. Va. WEYL, Woldemar A. (GF) Div. of Mineral Technology Pennsylvania State University University Park, Pa. WHALEN, Thomas J. 7678 Harding, Dearborn, Mich. W HALLON, William P.. Jr. (M) 3551 County Line Rd., Chalfont, Pa. (Globar Div., Carborundum Co.) WHEELER, D. D. (W) Titanium Alloy Mfg. Div. National Lead Co. I l l Broadway, New York 6, N. Y. W HEELER, Marvin Q. (G) Coca-Cola Co.. Engineering Dept. Drawer 1734, Atlanta 1, Ga. W HEELER, William H. (BI) 1721-A Aberdeen Rd. Baltimore 4, Md. (Martin Co.) WHEELING STEEL CORP. (Ernest B. Snyder) Steubenville South Plant Steubenville, Ohio WHERRY, Allen P. (E l) 9652 Oakdale Rd., Parma 29, Ohio (Hunter-Thomas Assoc.) WHITACRE, D. D. (R) Whitacre-Greer Fireproofing Co. Waynesburg, Ohio WHITACRE-GREER FIREPRO O FING CO. (D. D. Whitacre) Waynesburg, Ohio WHITACRE, Maxwell L. (M) Carborundum Co., Buffalo Ave. Niagara Falls, N. Y. WHITAKER, Fred A. (W I) 451 Oak Ridge Rd., Clark, N. J. (General Ceramics Corp.) WHITAKER, H. Rustless Iron Co. Ltd., Lawkholme Ln. Keighley, Yorks, England WHITAKER, L. R. (SFI) Carolina Ceramics, Inc., R. R. 3 Columbia, S. C. W HITE, David E. 1009 W. California, Urbana, 111. WHITE, Frank L. (G) 12147 Manor, Detroit 4, Mich. (Ford Motor Co.) W HITE, George D. (B) 225 E. Drive. Oak Ridge, Tenn. (Union Carbide Nuclear Co.) WHITE, Harold E. (RFI) R. R. 6, "Windy Knoll," Butler, Pa. (Lava Crucible-Refractories Co.) R o ster 121 - E, J. F. (B) J16 Arrowood Dr., Cincinnati 31, Ohio General Electric Co.) TE. John M. (G) perry Electronic Tube Div. ainesville, Fla. TE, Jonathan S. (W) finger PI. burg, Pittsburgh 21, Pa. ___ loti Div., Carborundum Co.) T t . U'Mara (G) 1-12 Fairmont Ave., Westfield, N. J. Carborundum Co.) TEHEAD, Leland E. 662 Simpson St., Norfolk 13, Va. TESELL, Lysle E. (R) Wellsville, Mo. (Wellsville Fire Brick Co.) iTFIELD, Robert E. (R) Chas. Taylor Sons Co., Box 58 Annex Station, Cincinnati 14, Ohio 1TFORD, Robert F. (R) North American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14, Ohio 1TFORD, William G. (DF) Box 38, Olympia Fields, 111. (University of Chicago) ITIXG, Harvey W. Box 202, Lacona, N. Y. ITLEY, Jack O. (W) 2491 Princeton Ave. San Angelo, Texas (Monarch Tile Mfg., Inc.) IITN'EY, Earl J. (GJ) 222 Walnut St., Corning, N. Y. (Corning Glass W orks) ' IITNEY, Eugene H. (R) Gladding, McBean & Co., Mica, Wash. IITN EY , John B. (E ) 317 N. Bonner Ave., St. Matthews, Ky. (General Electric Co.) IITSO N , Ralph E. (W ) Aluminum Co. of America Box 300, Bauxite, Ark. )N, Richard E,, Jr. (R) lecond Ave., Farmville, Va. unite Mining Corp.) HITTAKER, Clyde M. (W ) Box 960, New Castle, Pa. (Universal-Rundle Corp.) HITTAKER, G. Ward (W ) Union Meeting Rd., Gen. Del. Bluebell, Montgomery County, Pa. (Universal-Rundle Corp.) HITTEMORE, J. W. (SFI) Virginia Polytechnic Institute Blacksburg, Virginia 1 HITTEMORE, O. J. (S) Vincent Clay Products Co. 615-19 State Bank Bldg. Fort Dodge, Iowa HITTEM ORE, O. J., Jr. (R I) Norton Co., Worcester 6, Mass. 'HITTEM ORE, Russell G. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. IBERG, Orjan AB Svenska Metallverken Vasteras, Sweden v'ICKE, Warner C. (W) General Electric Co., One River Rd. Schenectady, N. Y. VICKS, John Simison (E ) Fairground Rd., R. R. 1 Fern Creek, Ky. (General Electric Co.) VIDGER, G. Thomas (W) 3811 N. Walnut, Kansas City 16, Mo. (Tierra Royal Potteries, Inc.) VIEGAXD. Frank R. (W'J) _H6-A Haddon Hills Apts, addonfield, N. J. __Iniversal-Rundle Corp.) ^xS, Bradley E. (G) Owens-Illinois 1700 N. Westwood Ave. Toledo 7, Ohio VOL. 3(1, X o . 10 (HU W1KER, Richard M. (G) 206 Rand Ave., Painted Post, N. Y. (Corning Glass Works) VTLAXSKY, Harold (G) 69 Meadow Brook, Corning, X. Y. (Corning Glass Works) W ILCOX, David L. Box 827, Alfred, X. Y. " WILCOX, Herman G. (R) 800 Ross Ave., Pittsburgh 21, Pa. (Harbison-Walker Refractories Co.) WILCOX, James W. (S) Alliance Clay Product Co. Alliance, Ohio WILCOX, Paul D. 1 59 S. Grant St., Midvale, Utah WILDER, David R. 1212 S. Third St., Ames, Iowa WILKE, William P., I l l (M) Hammond Lead Products, Inc. 5231 Hohman Ave., Box 912 Hammond, Ind. WILKERSOX, Robert L. (\V) Crescent Concrete Products Corp. 2933 Dauphine St., New Orleans, La. WILKES, Gordon B. (RF) Box 131, East Orleans, Mass. W ILKINS, E. D. Kaiser Bauxite Co. Spur Tree, Jamaica, B. W. I. W ILKINS, Ian Hugh (W) 325 Old Quarry Rd. Kingston, Ont-, Canada (Frontenac Floor & Wall Tile, Ltd.) W'ILKINS, William W. (M) Ferro Corp., 5309 S. District Blvd. Los Angeles, Calif. WILLEMS, H. W. V. (G) 1513 Pacific Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) W ILLENBROCK, Allen W. (W) Stangl Pottery Co. Box 2080, Trenton 7, N. J. W'lLLIAMS, Alan B. (RI) 105 McCarthy Dr., Augusta, Ga. (Babcock & Wilcox Co.) WILLIAMS, Arthur E. (G) 1214 Eighth St., Moundsville, W. Va. (Fostoria Glass Co.) W ILLIAMS, Charles N. 311 Fairlawn Dr., Urbana, 111. WILLIAMS, Clyde (RF) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio WILLIAMS, George F. (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave., Toledo 1, Ohio W ILLIAMS, Gordon R. Fabrica Nacional de Porcelana S. A. Calle 1-a Maracay, Edo-Aragua, Venezuela W ILLIAMS, H arry M. (WI1 Insulator Dept., General Electric Co. Box 57. Baltimore 3, Md. WILLIAMS, John A. (W ) Box 250, Trenton 2, N. J. (Mitchell-Bissell Co.) WILLIAMS, John C. (W ) Mt. Vernon Way, Whippany, N. J. (Bell Telephone Labs.) WILLIAMS, Josephine L. (B) 6014 Woodmont, Cincinnati, Ohio (Cincinnati Milling Machine Co.) WILLIAMS, Lawrence (G) Box 652. San Antonio 6, Texas (Artist in Glass) WILLIAMS, Leroy L,, Jr. (E l) 3006 Adams Ave., Evansville, Ind. (Whirlpool Corp.) WILLIAMS, Robert A., Jr. (W) American Encaustic Tiling Co., Inc. 1000 N. Cannon Ave., Lansdale, Pa. W ILLIAMS, Robert B. (VV) 1067 Dawn St. Signal Mountain, Tenn. (American Lava Corp.) WILLIAMS, Robert E. 1800 Crosby Rd., Carrollton, Texas WILLIAMS, Robert M. (RI) 5809 Royal Oak Ave., Baltimore, Md. (General Refractories Co.) W ILLIAMS, Walter E. (W I) New Castle Refractories Co. New Castle, Pa. WILLIAMS, Willis W. (R) Aluminum Co. of America Box 300, Bauxite, Ark. W ILLIS. James B. (E) 309 Timonium Rd., Timonium, Md. (Pemco Corp.) W ILLIS, James L. (Ri Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center, Pittsburgh 22, Pa. WILLMORE, Tracy A. (R) 1118 W. Illinois St., Urbana, 111. (University of Illinois) WILLS, Robert E. (R) Box 220, Coal City, Illinois (Illinois Clay Products) W ILSON, Bonum S.. Jr. 2914 Niagara Ave. Niagara Falls, X. Y. WILSON, Calvin S. (G) Libbey Glass Div., Owens-Illinios Ash St. & Wheeling R.R. Toledo 1, Ohio WILSON, Charles L. (S) 217 N. Meridian St., Brazil, Ind. (American Vitrified Products Co.) W ILSON, Clifford F. (R) Kerr Manufacturing Co. 6081 12th St., Detroit, Mich. WILSON, George (R) 131 Edison Ave., New Castle, Pa. (New Castle Refractories Co.) W ILSON, Glenn I. Box 519, Sapulpa, Okla. WILSON, Homer W. (S) Delaware Clay Co. Box 352, Delaware, Ohio WILSON, Hugh H,, Jr. (BI) Oemson College, Olin Hall Clemson, S. C. W ILSON, Maurice S. (R) 14 Reynolds Dr., Wallingford, Conn. (American Refractories & Crucible Corp.) WILSON, Robert Charles (W I) 791 Wedgewood Dr., Apt. 3 Columbus 4, Ohio (Ohio State University Engineering Experiment Station) WILSON, Robert F. (G) Durakool, Inc. 1010 N. Main St., Elkhart, Ind. WILSON, Roger E. (R) 101 Collinwood Blvd., Fremont, Ohio (Basic, Inc.) WINBURN, H. L. (S) Box 1369, Little Rock, Ark. (Winburn Tile Mfg. Co.) WINCHELL, Richard (R) 1314 Center St., Pittsburgh 21, Pa. (Westinghouse Electric Corp., Atomic Power Dept.) WINEMILLER, William F. (R) 11 Ardmore Road, Worcester 9, Mass. (Norton Co.) WIXGERTER. Donald B. (R) 254 Oxford Ave., Fair Haven, N. J. (Tohns-Manville Corp.) W INSHIP, Lee C. (G) Sylvania Electric Products, Inc. Emporium, Pa. WINTER, Aniuta : Institut d'optique Thorique et Applique, 3, Bld Pasteur Paris (15) France W INTER. Gary E. 324 Forest Rd., Davenport, Iowa W IRTH. David G., Jr. 1108 Clara Ave., Toliet, 111. WISCONSIN PORCELAIN CO. (L. A. Stohl) 120 Lincoln St. Sun Prairie, Wise. WISE. Douglas 5 Irving St., Alden, N. Y. R o st e r 123 5e ; l . g. (b ) E. I. du Pont de Nemours & Co., Inc. Chemical Dept., Experimental Sta. Wilmington, Del. SEMAN, Claude F. (S) West Virginia Brick Co. Box 1071, Charleston, W. Va. tKI, I. Stanli ' (R) rial Heating Union Trust Bldg. Pittsburgh 19, Pa. ISS, J. E. (MFI) 1339 Lincoln Rd., Columbus 12, Ohio (Consultant) ITMER, Frank (G) 612 W. Main St., Woodville, Ohio (Ohio Lime Co.) ITSCHEY, Ray A. (R) A. P. Green Fire Brick Co. Mexico, Mo. ITTE, Kurt Tholauerstr. 30 M arktredwitz/Oberfranken, Germany ( Kera-Sud Schwarzenbach) ITTER, Raymond B. Edificio Galipan, A-5-C, Av. Miranda El Rosal, Caracas, Venezuela (Fabrica de Productos Ceramicos) TTU CKI, Robert M. (G) Aerophysics Development Corp. Box 689, Santa Barbara, Calif. TTZEMANN, A. W. (W) Eljer Co. Div. Murray Corp. of America Ford City, Pa. /O H L F O R T , Sam W. (G) __ . Libbey-Owens-Ford Glass CoT 1701 E. Broadway Ave. Toledo 5, Ohio VOLD, T. (W) Smith & Stone, Ltd. Georgetown, Ont., Canada VOLFENSPERGER, R. E. (R) 231 M artin Ave., Pittsburgh 16, Pa. (Tom Brown Industrial Supply Co.) A ^ JT O D O F F , Vladimir E. (B) ^^^fcb o ru n d u m Co. ^ ^ K e a r c h & Development Div. ^ N iag ara Falls, N. Y. iVOMELDORPH, R. C. (G) 3 Abbott S t, R. R., Manville. R. I. (Owens-Corning Fiberglas Corp.) WONG, Y. Y. (X) c /o Mrs. D. D. Yang 5741 S. Kenwood Ave., Chicago 37, 111. WONGSOREDJO, Rasmadji Balai Penjelidikan Keramik (Ceramic Institute) Djl. Raya Tim ur 322 Bandung, Indonesia WOOD, Clifton E. (W ) 512 E. Ellen, Fenton, Mich. (A C Spark Plug Div., General Motors Corp.) WOOD, Kenneth T. (R) 102 Grace Blvd., Painted Post, N. Y. (Corning Glass Works) WOOD, Llewellyn, Jr. (S) Carrington Woods, R. R. 4, Box 209 Milledgeville, Ga. (Oconee Clay Products Co.) WOOD, Russell K. (W I) 3900 E. California St. Pasadena 10, Calif. (Wallace China Co., Ltd.) WOODBRIDGE, Thomas C. 38 Stirling Rd. Hayes, Middlesex, England (British Bath Co. Ltd.) W OODRUFF, Calvert M. (W) American Nepheline Ltd. Nephton via Lakefield, Ont., Canada WOODRUFF, Ernest W. (R) Refractory Products Co. PIO Custer Ave., Evanston, 111. DDS, C. J. (X) Philips Electronics, Inc. Instrum ents Div. 750 S. Fulton Ave. Mount Vernon, N. Y. V o l . :w, N o. 10 (1057) WOODS, Hubert (B) y Portland Cement Assn. 33 W. Grand Ave., Chicago 10, Ili. YAMAGUCHI, Mitsuo (W) WOODS, William J. (M) 72 Oakwood Ave., Arlington, N. J. Pennsylvania Glass Sand Corp. (Noritake Trading Corp.) Box 627, Lewistown, Pa. YAMAMOTO, Hideo (G) WOODS, William Jr. (M) 305 W. 89th St., New York 24, N. Y. Pennsylvania Pulveriziflg Co. (Asahi Glass Co., Ltd.) Two Gateway Center YAMASAKI, Kazuo Pittsburgh 22, Pa. Chemical Institute, Science Faculty W O O D V ILLE L IM E PRODUCTS CO. Nagoya University (J. Robert Cowell, Jr.) Chikusa, Nagova, Japan 2140 Jefferson Ave., Toledo 2, Ohio YAMAUCHI, T. WOODWARD, Roger (W) Tokyo Kogyo Daigaku 200 Alaimo Dr., Rochester 10, X. Y. (Tokyo Institute of Technology) (Victor Insulators Div. Ookayama, Meguro-Ku, Tokyo, Japan I-T-E Circuit Breaker Co.) YARTE, Andrew A. (W) WOOLDRIDGE, Morris L. (R) Productos Ceramicos, S. A. Owens-Corning Fiberglas Corp. Apartado 486, Monterrey, N. L., Mexico Research Center. Newark. Ohio YARTE, Eugene A. (W) WOOLEY, Seward E. (RI) Industrias Procesa, Apartado 486 18 E. Brown St., Somerville, X. I. Monterrey, N. L. Mexico (Johns-Manville Research Center) YATES. Donald N,, Jr. W OOTEN, Richard M. (G) 8-A Daniel Dr., Clemson, S. C. 3913 W hitland Ave., N ashtille. Tern:. YAVORSKY, Paul J. (B) (Ford Motor Co.) McDanel Refractory Porcelain Co. WORCESTER, R. L. (S) Beaver Falls, Pa. Purington Brick Co. YAWITZ, Murray (G) Box 110, Galesburg, 111. Fish-Schurman Corp. WORCESTER ROYAL 70 Portman Rd., New Rochelle, N. Y. PORCELAIN CO., LTD. YEATER, Roy G. (G) (Joseph F. Gimson) Fostoria Glass C., Moundsville, W. Va. Royal Porcelain Works YENCKEX, Arthur J. R. Worcester, England E. L. Yencken & Co. Pty. Ltd. WORCESTER, W. G. (X FI) 58-72 Queen's Bridge St. 720 Sask. Crescent E. South Melbourne, Vic., Australia Saskatoon, Sask., Canada YERRICK, William B. (R) WORK, Lincoln T. (M) Allegheny Ludlum Steel Corp, 15 N. Crescent, Maplewood, N. J. Brackenridge, Pa. (Consultant) YOCOM, Ray A. (G) W RIGHT, E. P. (W I) United Clay Mines Corp. Taylor, Smith & Taylor Co. 101 Oakland St., Trenton, N. J. Chester, W. Va. YOSHIKI, Bumpei WRIGHT, J. E. 304 Tsurumi-cho, Tsurumi-ku Messrs. A. G. Hackney & Co., Ltd. Yokohama, Japan Fairfield Pottery, Hanley (Asahi Glass Co.) Stoke-on-Trent, England YOUMANS, Robert M. W RIGHT, John C. Box 4264, Georgia Tech., Atlanta, Ga. 110 Laughlin Ave. YOUNG, David A. (S) Welland, Ont., Canada Cloud Ceramics, Concordia, Kansas WRIGHT, J. W. (GI) YOUNG, George F. (G) 2703 Densmore Dr., Toledo 6, Ohio Demuth Glass Works, Inc., Box 629 (Owens-Illinois) Parkersburg, W. Va. WRIGHT, Louis H. YOUNG, Howard S. (B) Box 2904, Clemson, S. C. R. R. 1, Chadds Ford, Pa. WUELLNER, Joseph F. (E) (E. I du Pont de Nemours & Co., Inc.) 1602 Galion Ave., Cleveland 9, Ohio YOUNG, James (Ferro Corp.) John G. Stein & Co. Ltd. WURTSBAUGH, C. G. (W) Manuel Works, Linlithgow, Scotland Glostex Chemicals, Inc. YOUNG, James E. (S) 3056 Bandini Blvd. Structural Clay Products Los Angeles 23, Calif. Research Foundation, Geneva, 111. W USKE. H. H. (S) YOUNG, John C. (G) 414 Case PI.. X. W., Canton, Ohio Portuguese Bend Club (Metropolitan Brick, Inc.) Portuguese Bend, Calif. WYATT, Bradley W. (S) Pacific Clay Products 9500 S. Norwalk Blvd. Los Nietos, Calif. W YCKOFF, W. R. (R) Joseph Dixon Crucible Co. 167 Wayne St., Jersey City 3, X. J. WYGANT, James F. (RI) Standard Oil Co. (Indiana) Engineering Research Dept. 2400 New York Ave., Whiting, Ind. WYMAN, George F. (S) Ozark Smelting & Mining Co. W. Fourth St., Coffeyville. Kans. WYNDHAM-QUIX, Francis H., Jr. (RI) Box 305, Avonmore, Pa. (Hayward Scientific Glass Corp.) YOUNG, Lloyd G. (G) Corning Glass Works, Corning, N. Y. YOUNG, Robert W. (G) American Optical Co. Glass Research Lab. Southbridge, Mass. YOUNG, Stanley H. (RI) Cleveland Quarries Co., Amherst, Ohio Y'OUNG, Vincent M. (G) American Optical Co. Southbridge. Mass. YOUNG, Willard G. (W I) Case Manufacturing Corp. 1000 W. Pine St., Robinson, 111. YOUNG, W. O. (W I) 6 Livingston St., Honeoye Falls, N. Y. (General Refractories Co.) (Victor Insulators Div., WYSONG, Charles F. (B) I-T-E Circuit Breaker Co.) 425 Clay St., Marietta, Ga. YOUNGBLOOD. Charles J., Jr. (G) (Georgia Institute of Technology) Mississippi Glass Co. WYSOR, D. C. (R) 88 Angelica St., St. Louis 7, Mo. General Chemical Division YOUNT, Richard V. (G) Allied Chemical Dye Corp. C. Tennant Sons & Co. 40 Rector St., New York 6, N. Y. 100 Park Ave., New York 17, N. Y. R o st e r 125 m sem rZEY, Marvin G. (D) Fostoria Glass Co., 1200 First St. Mounrlsville, W. Va z !.\, William A. (W) >d Dr. sbury, N. J. 'ile Mfg. Co.) eo. B. (W ) Shenango China, Inc., Xew Castle, Pa. xOWIAK, Peter P. (S) 515 S. E. 21st St. Mineral Wells, Texas (Texeramics Inc.) ?FE , Richard C. (W) 162 Penfield St., Pomona, Calif. (Pomona Tile Mfg. Co.) RBO, George (G) 88 Melrose St., Vineland, X. J. (Kimble Glass Co.) VIS. Lewis (W ) 11012 S. Chanera, Inglewood, Calif. (H. F. Coors Co., Inc.) W ISTOW SKI, A rthur V. (\YI) 904 Ohio Ave., Trenton 8. X'. J. HRLAL'T, H erbert A. R. (R) Calcium Aluminate Cement Corp. 104 E. 40th St., Xew York 16, N. Y. ILLER. Irwin F. (M) 150 Mason Dr. Manhasset, Long Island, N. Y. IB. F. Drakenfeltl & Co., Inc.) 1SEL. Eva S. (D) South Mountain Rd. X'ew City. Rockland Co., X. Y. (Industrial Designer) ZELLER CORP. (R. E. Costello) I'ort Wayne Rd., Defiance, Ohio ZERFOSS, Samuel (BF) Mitteral Products Div. National Bureau of Standards Washington 25, D. C. ZICKEFOOSE, Ellis J. (R)* Griffin Wheel Co. 445 X". Sacramento Blvd. Chicago 12, 111. ZIEGFELD, Robert L. (M) Lead Industries Assn. 60 E. 42nd St., New York 17, N. V ZIEGLE, Glenn D. ' 409)5 W. University, Champaign, 111. ZIMAR, Frank (G) Corning Glass Works Main Lab., Corning, N. Y. ZIMMER, David C. (W FI) 515 Harding Rd., Zanesville, Ohio (Nelson McCoy Pottery Co.) ZIMMERMAN, Joe A. 1120 Downey St., Apt. 1, Radford, \ a. ZIMMERMAN, Philip D. 611 W. Fayette Ave., Effingham, 111. ZIMMERMAN, William F. (B) 3856 McNicholas St. Cincinnati 36, Ohio (General Electric Co., Gas Turbine Div.) ZINK, George H. (E l) A. O. Smith Corp. 3533 XL 27th, Milwaukee 16, Wise. ZINK, Harold F. (G) Owens-Illinois, 1700 N. Westwood Ave. Toledo 1, Ohio ZLOCK, Evan P. (G) I-T-E Circuit Breaker Co. 601 E. Erie Ave., Philadelphia 34, Pa. ZLOTNICK, Herbert (BJ) 7902 Bay Pky., Brooklyn, XL Y. (Mucon Corp.) ZLUPKO. John E. (B) 6227 Walker St., Philadelphia, Pa. (General Electric Co.) ZXEIMER, Joel E. (BI) 13 Donna Rd.. Framingham, Mass. (Raytheon Mfg. Co.) ZORZI. Eugene R. (M) C. Tennant. Sons X Co., Inn Park Ave. New York 17, XL Y. ZL'DNAK, Stephen J. (Wr) Box 1599, Trenton, XL J. (General Porcelain Co.) Zl'MWALT, Donald A. (W) 10519 S. Kibbee. W hittier, Calif. (Collins Radio Co.) Zl'X ICK. Michael J. (B) 2740 S. 111th St. West Allis 19, Wise. (General Electric Co.) ZVANUT, Albert J. (B) Lincoln Electric Co. 22801 St. Clair Ave., Box 3115 Cleveland, Ohio ZVANUT, Frank J. (MI) 14533 Bayes Ave., Lakewood, Ohio (Godfrey L. Cabot, Inc.) ZWERMANN, Carl H. (BF) 806 W. Main St., Robinson, III. ZWETSCH, Artur Villeroy & Both Mettlach/Saar. Germany Addenda LBERS, Ronald R. Iowa State College 2398 Frilev Hall. Ames. Iowa LTEM OSE. Earl R. Box 263, Pleasant Gap, Pa. RTHUR. Reuben B.. Jr. 1908 .'.-5 Park Dr.. Raleigh, N. C. AUER, Richard F. Box 635, Alfred, XL Y. ROWN. Fielding (X) Sprague Electric Co. North Adams. Mass. URNS. Paul E. (W) R. R. 5, Graceland Rd. New Castle. Pa. (Vitro Manufacturing Co.) LM'ORALI. Ronald 913 W. College \vc. Stale College, l'a. TSF.K. L aurence J. 7 Svcamore St.. Natrona, Pa. >ELOTT. Charles R. 404 S. Busey. Urhana, 111. )EN K. William' J. ^^^^hsouri School of Mines ^ ^ ^ ^ rm ito ry Rm. 314. Rolla, Mo. August F. 2122 Lincoln Way. \m cs, Iowa Voi.. iil), N o . 10 ( llLYT) DRUMMOND, W. Wendell (G) 4711 W innequah Rd. Madison 4, Wis. ( Bjorksten Research Lab.) DUXSMORE, Gordon K. 120 Ninth St., Philipsburg. Pa. FENTON ART GLASS CO. (Frank M. Fenton) Williamstown. W. Va. FOLWELL. Marjorie Box 488. Alfred, XL Y. GERSCH. H erbert (S) 9800 Oakwood Dr., Twinsburg, Ohio (Horizons, Inc.) GRIFFIN. Margaret Box 488, Alfred. XL Y. KERLER, Richard W. (B) Linde Co.. Speedway Lab. Box 8237. Indianapolis 24, Ind. KEENEY, Bert O. (S) Kansas State Teachers College 1919 S. Locust. Pittsburg, Kans. KITCHEN. Alan J. _ 95 E. Main St.. Angelica, XL YL KOWALCZYK. Robert A. 257 W Beaver Ave State College. Pa. MILLER, Kenneth ML (RJ.i Brush Beryllium Co. 4301 Perkins Ave.. Cleveland 3, Ohio NAGAX, Raymond M. Box 767, Alfred, XL Y. NESTER, Ralph Delta Upsilon. State College, Pa. REES, Glenn H. 41 Hilltop Trailer Park State College. Pa. RESTREPO. Ramiro Box 1261. Alfred. XL Y. RILEY, William C. (W) Battelle Memorial Institute 505 King Ave, Columbus 1, Ohio SALES. Arthur T. Box 3996. Georgia Tech. Sta. Atlanta. Ga. SCHULTZ, Donald J. 130 Heister St.. State College. Pa. SUNDY. George J. 95 XL Mill St.. West Nanticoke, Pa. TISDALE. Richard L. Box 1365. Alfred. XL Y. VAX' HORN. John H. 1103 W. Illinois. Urbana. 111. VAN RAVESTEIN, John H. 286 " A" St.. Clemson. S. C. R o s t e r 127 National Institute of Ceramic Engineers Membership Roster ember Grade icock, Albert S. bery, D. F. it, Leslie R. mmerman, J. H. ndrews, Andrew I. rchbold, Walter H., Jr. rmstrong, Leland R. mold, Howard C. mold, Thomas M. rrance, Frank C. ustin, Chester R. ydelott, Elliott C. abcock Paul R. ailey, Floyd air, George J. aldauf, Earl E. aque, Harold W. arringer, Lawrence E. aumann, Henry N., Jr. eals, M. Douglas earn, James R. eecher, Milton F. eeton, Earl E. enbenek, Raymond ennett, A. Lee ennett, Dwight G. ennett, Myles P. erkelhamer, Louis H. eta, George C. evis, Ralph E. irch, Raymond E. r.. Jr. Reif V. [. lessing, Robert Lee lume, Arthur J. oeker, V. W. ognar, Edwin J. ollinger, Robert H. ooze, M. C. oros, John owne, Martin S. oyd, John E. oyd, Robert C. radley, R. S. radwell, Cyril ramlett, William P., Jr. randt, William O. rown, Donovan P. rown, Lawrence H. rownell, Wayne E. rush, George D. ryant, Eugene E. uckner, O. S. urchfiel, B. M. urdick, Milton D. urkhalter. Edward utler, C. Edward, Jr. aito, A. M. allahan, H. D. allinan, Edward E. ampbell, Robert M. arruthers, John L. arter, F. B. arter, Herbert D. artwright, S. V. avanaugh, D. J. ayford, James M. harbonnier, William P. hristman, H. M. lare, Robert L. lark, John D. la^IhRichard E. Eugene C. J^^Hobert W. offroT William W. ole, Sandford S. 'oleman, Robert L. ollins, Paul F. OL. 30. No. 10 (1957) Collins, William G. Commons, Charles H., Jr. Conover, Ray C. Contardi, William A. Cook, Ralph L. Coroes, John E. Couch, Albert H. Cramer, W. E. Crandall, Eugene R. Crandall, James R. Crandall, William B, Crawford, George E. Crawford, J. L. Cress, William C. Curtis, Carl E. Dager, Probert W. Danielson, R. R. Davies, Chester A. Davis, Harry E. Day, Jack F. Day, Ralph K. Day, Robert B. 'D e a r, Paul S. Debenham, W. S. DeRemer, John W. Deringer, W. A. Diamond, Grant S. Dickey, John M., Jr. Dietterle, Edwin W. Dilliard. Paul D. Dodd. Charles M. Donahey, John W. Donnenwirth, A. L. Doran, Robert F. Dressier. Philip Drouhard. W. J. DuBois, H. B. _ Duckworth. Winston Duplin, V. J., Jr. Eagle, J. Eugene Easter, George J. Ehman, Roy G. Eitel. Wilhelm Elder. John C. Ellard, Earle R. Emrich. Emerson W. Erzen, Frank C. Everhart, J. O. Ewing, Robert F. Fabianic, William L. Fahrenbruck. William O. Failmezger, Howard Fallon. Frank J. Fay, Wayne X. Feagin, Roy C. Fellows, R. L. Fels. C. G. Fessler, A. H. Fitzgerald, Alex E. Fleming, Charles A. Flint, E. P. _ Flint, Francis C. Foraker, Robert W. Ford, Walter D. Frahme. Herman H. Frame. Dudley P., Jr. Francisco. Allen C. Fraser, Orray T. Frazier, J. Earl Frechette, Van Derek Frederick, C. L. Freeman, Charles A. French. Preston W. Fritz, E. H. Fuller, Donald H. Fuller, Richard B. Fulmer. Raymond C. Funnell, John E. Gallup, John Garve, T. Walter Gaskins, W. W. Gautsch, Murray C. Geiger, Charles F. Geller, R. F. erster, C. W. Gibson. R. L. Gill, Joseph W. Gill, LaVerne N. Gitter, Alice Josephine Glaze, Francis W. oin, Fred L. Goodrich, Hobert R. Gould, Robert E. Green, John R. Green, R. S. Gregorius, J. S. Grigg, Paul E. Hagan, M. A. Hagar, Donald Hallett, Crawford W. Hamilton, Edgar H. Hanna, H. H. Hanna, Ralph E. Hansard, W. Carey Hansen, J. E. Hardy, Ronald G. Hamish, John D., Jr. Hartshorn. T. D. Hartwig, Frederick J., Jr. Hawks, Ralph L. Hazen, E. J. Heddell, James V. Heiligman, H. A. Heiser, Perry D. Hemsteger, Samuel E. Henderson. Frederick C. Hendren. Robert R. Henry, Edward C. Heppiewhite. J. W. Herold, Paul G. Hewitt, L. C. Hicks, James C. Higgins, Waldo W. Hopkins, Robert W. Horak, William Horning, Roy A. Homung, Martin R. Hossenlopp. Arthur M. Hostetter, J. C. Howe, Elroy E. Hower, Lawrence D., Jr. Hower, Robert S. Hughes, Walter M. Hunt, John F. Huppert, Paul A. Hutchison, Clark Hutchison. R. C. Hyde, Collin Irvine. George C. Ives. John B. Jackson. A. Curtis Jacob, Bernard T. Kauffman, John R. Kautz, Karl Kay. William T. Keith, Wendell P. Kempf. William C. Kenagy, William L. Kent, Joseph P. Kent, N. Johnson Keplinger, Robert B. Kerper, Matthew J. Kerr, W. Raymond King, Burnham W., Jr. King, R. M. Kirkendale. George A. Kirkpatrick, Frank A. Klinefelter, T. A. Knapp, William J. Knecht, A. O. Knoblaugh, Walter C. Knudsen, Friedrich P. Koch, William J. Koehler, W. A. Koenig, Charles Jacob Koenig, John H. Koos, E. K. Koshuba, Walter J. Kraner, Hobart M. Kriegel, W. Wurth Kronman, Samuel J. Kuechler, Adolph Kunzman, Edward E. Laird, Charles Lambe, C. M. Lambertson, Wingate A. Lane, Richard O. Lannes, Eugene M. Latimer, Horace L. Lawrence, Ralph V. Lee, P. William Leibson, Jacob S. Lennon, John W. Lesar, Albert Lewis, Gordon E. Lign, Elmer R. Limes, Robert W. Lindsay, Carey E. Lintz, Elmo H. 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Rexford, Jr. i^^^Hrederick 11. -en, Rangwald S. :inan, Fred B. turd, Ray W. imer, Willard E. sk, Joseph A. ireh, \\ illiam M. :k, J. Clair rkins, Walter \V. rry, Robert F. :ersen, Fred A. differ, Wilbur H. illips, Charles J. illips, Edwin L. illips. James G. ice, Tom M. inje, Christian \V. inkenhorn, William J. oetz, Edwin C. le, Gordon R. rst, Edward G. rter, Frank R. ste, Emerson P. stlewaite, D. E. ice, Janies E. ince, Alan T. ior, Harold D. intney, L. E. ne, Frank F. ipp, Carl H. a, Robert F iimer, John J. .mington, Victor H. iodes, Fraser B. iodes, Ralph R. :chmond, Joseph C. cker, Richard W. rank H. John Taggart Richard E. , ames T. odriguez, A. R. ogers, Edwin J. Dike, Herbert J. Dse, Ralph oss, Donald \V. up, Rolland usseli, Howard F. ussell, Ralston, Jr. ynders, Gerald F. lmlmeyer, Karl H. antomieri, S. Lewis uinders. Alfred C. :hlehr, W. Raymond choeninger, Irvin W. choeppel, Norman chofield, H. Zane chotts. Walter H. chroeder, Fred W. churecht, H. G. chwartz, M. 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Vukovich, Milan, Jr. Warren, George Waters, Martin R. Watkins, Charles Watkins, Robert V. Watkins, William E. Watts. Richard L. Weiss, E. Joseph Welch, A. Philip Westlake, C. Rogers Wherry, Allen P. Williams, Alan B. Williams, Leroy L., Jr. Williams, Robert M. Wilson, Hugh H.. Jr. Wilson, Robert C. Wood, Russell K. Wooley, Seward E Wyndham-Quin, Francis H., Jr. Zawistowski, Arthur V. Zneimer, Joel E. Membership in The American Ceramic Society brings to you: The Ceramic Bulletin, .a monthly publication devoted to news of The Society and of its members, descriptive articles and papers on the application of fundamental re search. Its advertising pages provide a high-prestige media for reaching ceramists in every branch of the industry. The Jo u rn a l. .depository of original research in the ceramic field, an archive of scien tific knowledge. When something new is developing in ceramic science you'll find it presented authentically, accurately and first in The Journal. Ceramic A bstracts.. a monthly report on all th at is published on ceramic technology. The literature of every nation is followed closely to assure th at all material of ce ramic significance is brought to your a t tention. Publication. . Acceptance of a scientific paper for publication by The Society is a mark of high recognition, editorial review com- mittees in specialized fields assuring rigid standards of technical excellence. Local S ections.. In 20 centers of ceramic opera tions in the United States members of The Society hold frequent meetings to hear papers, discuss m atters of common interest and enjoy good fellowship. M eetings. .Ceramists of the world gather for the Annual and Fall Meetings of The American Ceramic Society and its Divi sions . . . for the presentation and discus sion of papers on ceramic science, for the exchange of ideas, and for visiting with other ceramists. Highest awards of the ceramic world are presented at these meetings, in recognition of achievement and service in the ceramic field. Enjoy the prestige of membership in your industry's scientific society, plus the obvious advantages of keeping up to date on ceramic developments. The American Ceramic Society, 4055 N. High St., Columbus 14, Ohio. Vol. 3(i, N'o. 10 (1950 R oster 133 0 The American Ceramic Society BULLETIN A monthly publication devoted to the proceedings of The Society, discussions of plant, technical, scientific, art, and cooperative research problems. Volume 36, 1957 Charles S. Pearce, Editor James S. Welch, Managing Editor Emmoline R. Jamra, Editorial Assistant Charlotte B. Burgess, Editorial Assistant Committee on Publications: C. H. Hahner, Chairman; W. R. Kerr, J. O. Everhart, and E. P. 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