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The American Ceramic Societv 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. McNamara Contributing Editors: Officers of Industrial Divisions and Sections (For names, see back of Title Page) Executive, Editorial, and Advertising Offices: 4055 North High Street, Columbus 14, Ohio Publication Office: 20th and Xothampton Streets, Easton, Px Membership Roster The American Ceramic Society This Roster of members is published only for the use of members of The American Caramie Society. Listings are in alphabetical order. A separate Roster for the National Institute of Ceramic Engineers, showing grades of membership, is on pages R-l-5 to X-I3J of this issue. New members received too late to be included are listed in the Addenda on page R-127. These listings give the member's preferred mailing address. Where this is not his business address his company connection is shown in parentheses. Divisions and other Society affiliations are indicated in parentheses following each name. Ln accordance with the code given below. The absence of any such designation indicates that the member is from outside the United States or a student member, neither of which has Division affiliation. B--Basic Science Division D--Design Division E--Enamel Division G--riMass Division M--Materials and Equipment 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 ABBEY. R.iG. (G) General.Reiractories Co. 1520 Locust S:., Philadelphia 2, Pa. ABBOTT. Gordon H. Rode Enamel (?ty.) Ltd., Box 77 Industria. T Y L Unioa of South Africa ABBOTT. Russell W. (D) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio ABBOTT, Wiiliam F. (B) 502 W. Ojai Ave., Ojai, Caiif. (Servomechanism. Inc.) ABE, Tosio 1001, Kami-ikegami-cho, Ota-ku Tokyo, Japan (Toicvo Sbibaura Electric Co.. Ltd.) ABERNETHY. Lonnie L. (BI) Texas Instruments, Inc. 6000 Lemmon Ave.. Dallas 9. Texas ABINGDON POTTERIES. INC (J. M. Lewis) 301 N. Main St. Abingcoa, 111. ABRAMS. Marvin E. (W) Sentry Sanitary Corp., Box 427 Manningtpn. W. Ya. ABRAMSON. Isaac A. Atlantica 2356. Apto. 40J Rio tie Janeiro, 3razil (Kiabin I maos & Cia.) A3RILLE, A. Villa San Miguel Brewery, Inc., 1112 Aviles Maniia. Philipoir.es ACCOUNTIUS. Oliver E. (R) 622 W. Alegria Ave. Sierra Marire. Calif. (Aerojet-General Corp.) ACHAUER. L. C. (S) Natco Corp.. East Canton. Ohio ACME BRICK CO. (George Puls) Box 421. Fort Worth. Texas A C SPARK PLUG DIV.. GENERAL MOTORS CORP. (Kari Schwartzwalder) Flint 2, Mich. ADAMS CLAY PRODUCTS CO. (James A. Cunningham) Box 34. Martinsville. Ind. ADAMS, David E., Jr. (W) 830 Spring St.. Latrobe. Pa. 1 (Carborundum Co.) ADAMS, Edward M. (S) : Murray Tile Co.. Inc. | Cloverporr. Xy. ADAMS. Milton (G) j 129 '.V. Stretcher St.. Toledo 8. Ohio | (Libhey-Owenj-Ford Glass Co.) ADAMS. P. Bruce (G) Coming Glass Works Research and Development Coming. N. Y. Vol. 36. No. 10 (1957) ADAMS. Roland H. 2203-3 Perry Ave., Austin, Texas ADAMS, S. L. (G) Joseph E. Seagram 3c Sons, Inc. Seventh 5t. Rd.. Louisville 1. Ky. ADAMSTON FLAT GLASS DIV., ROLLAND GLASS CO. 3ox 631, Clarksburg. W. Vi. ADCOCK. Albert S. (WI) American-Standard 40 W. 40th St.. New York 13. X. Y. ADCOCK, Lawrence W.. Jr. (3) 1547 Empire Rd.. WicklifTe. Ohio (3rush Electronics Co.) ADDERLEY, James R. 42 Church St., Brieriey Hill S. Stafford. England (E. J. 3c J. Pearson Ltd.) ADERHOLD. George H. ('.V) Saaonburg Ceramics, Box 100 Saxooburg, Pa. ADLER. Arthur ( R) Alloy Metal Powders. Inc. 238 Eagle St.. Brooklyn 22. N. Y. AFFLSRBaCH. Harry (E) R-R. 4, Frankfort. Ind. (Ingram-Richardson, Inc.) A.GASWaL. Gopal Mohan 22 Gran Hatta Sc.. Calcutta 6, India AGARWAL. Shri K. University of Sheffield Dept, of Glass Technology Sheffield 10. England A. G. DER GERRESHEIMER GLASHUTTENWERKE (L. 3reuer) Dusseidorf-Gerresheim, Germany AGRON. Albert M. (E) Pfaudler Co.. Taylor St., Elyria, Ohio AGUILAR, L. M. (E) Ferro Enamel dr Mexico. S. A. Caile Oriente 171. No. 450 Mexico 14, D. F.. Mexico AGUILAR. Raul (E) Ferro Enamel de Mexico, S. A. Oriente 171 No. 450 Coionia Aragon. Mexico 14. D. F. AHEARN. V. P. (M) National Industrial Sand Assn. Munsey Bldg.. Washington 4. D. C. AKAM. J. W. (S) Natco Clay Products. Ltd Aldershot. One.. Canada AKMORAN. Miss Huban I Cobankizi Sokak Bnvukdere. Istanbul, Turkey AKRON PORCELAIN CO. fF. W. Butler) Akron 14. Ohio ALBERS-SCHOEN3ERG. Ernst (WF) 12-3-3 Reddeld Village Metuchen. N. J. (General Ceramics Corp.) ALBERTALLI. Stephen L. (G) Coming Glass Works. Harrodsburg, Ky. ALBERY, D. F. (SFI) 1433 23rd St. N. W,, Canton 9, Ohio (Stark Ceramics, Inc.) ALBON. Derek (R) Saskatchewan Research Council 1400 McIntyre St. Regina. Sask., Canada ALBRECHT. Ernst Keramische Faehschule Hoehr-Grcnzhausen/b. Koblenz, Germany ALCOCK, Ronald H. "Ferrum" Espana 402-600, Aveilaneda 3uenos Aires, Argentina (Ferrum. S. A. de Ceramica y Metalurgia) ALDEN, Charles E. (G) 3427 Heather Downs 31vd. Toledo 14, Ohio (Kimble Glass Co.) ALELUIA, Joao C. F. Av. Araujo E. Silva 59 Aveiro. Portugal (Fabricas Aleiuia) ALEN1US. Carl Axel Karhunkatu 23, Karhuia. Finland Foundation for Productivity Research) ALEXANDER. A. E. >'W) Buchanan Apts. 3-D 155 E. 47th St.. New York 17, N. Y. (Consultant) ALEXANDER. John B. (M) Southwestern Portland Cement Co. 1034 Wiishire 31vd. Los Angeles 17, Caiif. ALEXANDER. John M. (MI) 303 Morewood Ave. Pittsburgh 13, Pa. (Swindell-Dressler Corp.) ALGEMENE VERENIGING VOOR De NEDERLANDSE AARDEWERX SN GLASINDUSTRIE (W. J. Bollen) Haagweg 139. Rijswijk. Netherlands ALGER. Ferris E. (G) Old York Rd. New Hope. Bucks Co., Pa. (Polytechnic Research 3c 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. Coming, N. Y. ALLEN. GERALD L. 1061-E Monroe St., Albany 6, Calif. Roster 1 L >.". Ralph i\V 5v7 L rr-cr:u 1\<I, M an -heM. Ohio l Ir.gersoii-Hompiiryes Div. 3->rj-\V.ir:icr Corp.j ,,EN, Richard L. kl) E. J. Lavir.c i Co., 3ox 365 Newark. Ca.i:. LEX. Robert G. iR) Robert G. Allen Co.. Box 110 Mecbar.icv:ile. N. Y. LEN. Walter C. t B) Radio Corp. ci America Chemical i Physical Lab. 41i S. Fifth St, Harrison. N\ J. .EN. Warren \V,, Jr. (S > Hydraulic-Press Brick Co. South Park. Ohio UANCE WARE. LTD. (R. E. Strain) Box 550, Vancouver. B. C., Canada .IEGRO. Richard i.RJ) 3305 150th St.. Flushing 54. X. Y. (Norton Co. i .IS. Deo C.. Jr. (R) 2947 Elsie Ave.. Toledo 13, Ohio {Libbey-O.iens-Ford Class Co.) JSON. Adrian G. (R) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio .MAX. Orin H. (G) Kimble Glass Co. Owens-Illinois Technical Center 1700 X. Westwood Ave., Toledo 1. Ohio Leslie R. ( SI).. 141 Mattos Dr.. Fremont, Calif. (Kraltile Co.) MAXN. Berton G. (B) 16700 Cypress Way. Los Gatos, Calif. (Kaiser Aluminum 4 Chemical Corp.) ON BRICK CO. (Morris P. Hall) Box 25. Maryland Heights. Mo. SCHULER. Otto (W) 271 Hawthorne Ave., Langhorne. Pa. (Wenczel Tiie Co.) MINIUM LIMITED SALES. INC. (R. M. Mathieson) 630 Fifth Ave. New York 20. X. Y. HINUM CO. OF AMERICA (H. P. Bonebrake) 1501 Alcoa 31dg. Pittsburgh 19. Pa. 3UCAX COLLOID CO. ;?anl 3echtner) 113 Merchandise Mart. Chicago 54. III. 1SICAX CYANAMID CO. 'H. C. Milton) 10 Rockefeiler Plaza. Xeiv York. X. Y. 1RICAN ENCAUSTIC PILING CO, INC. (Robert A. Williams, Jr.) 1000 X. Cannon Ave, Lansdale. Pa. ISICAN GAS ASSOCIATION ;C G. Segeier) 420 Lexington Ave. few York 17. X. Y. can lava-corp. S- A. McGinnis) Cherokee Blvd. 4 Mfgrs. Rd. iWrr ilooga 5. Tenn. SdCAN NEPHELINE LTD. H. R. Deeth) 3 King St. W, Sra. 2530 .`oronto, Ont, Canada RICAN OPTICAL CO. A. H. Bennett) 'jeatarch Center. Southbridge. Mass. RICAN PORCELAIN IKAMEL CO. (Robert Long, Sr.) IM E. Keating Ave. lukegon 36. Mich. taCAN POTASH 4 pSMICAL CORP. (R. M. Curts) PParic Ave, New York. X. Y. KtCAN RADIATOR & rANDARD SANITARY CORP. enrrs S. Goodman) 834 E. Broadway Wuville 4, Ky. . ICAN SMELTING 4 SPINING CO. > J. Dickinson) mh Plainfield, X. J. M, No. 10 (1957) AMERICAN WINDOW GLASS CO. (A. S. Crandon) 30th Floor Farmers Bank Bldg. Pittsburgh 32. Pa. AMES. R. X. (RI) 10713 S. Morgan St, Caicago 4j. i;|. (U. S. Steel Corp.) AMES. Robert G. f\V) 69 Jefferson Ave, Cresskiil, X. J (B. G. Corp.) AM.MF.RMAN. J. H. RI. R. R. 3. Wexford. Pa. (North American Refractories Co.) ANCHOR HOCKING GLASS CORP. (William V. Fisher) Lancaster, Ohio ANCIZAR-SORDO. Jorge Laboratorio Quimico Xacional Ministerio de Minas y Petroleos Apartado 2577, 3ogota. Colombia ANDERSON. David O. Box 1351. Alfred. N. Y. ANDERSON, Harlan U. Box 25. Milford. Utah ANDERSON. Harry L. ( RI Republic Steel Corp. Youngstown I. Ohio ANDERSON. Herbert H. (G) 217 W. 66th St, X. Kansas City 16. Mo. (Gustin-Bacon Mfg. Co.) ANDERSON. Orson L. (G) Bell Telephone Labs, Murray Hill. X. J. ANDERSON, Raymond H, Jr. Box 2560. Virginia Tech. Sta. Blacksburg, Va. ANDERSON. R. E. (W) Robertson Mfg. Co, Box 848 Trenton 5, X. J. ANDERSON, R. H. (S) Robinson Clay Product Co, Box 545 Dover. Ohio ANDERSON, Robert E. (W) Iroquois China Co, 2220 Miltcn Ave. Syracuse S, X. Y. ANDERSON. Robert R. (RJ) 185 Cynthia Dr, Pleasant Hill. Calif. (Gladding. Mc3ean 4 Co.) ANDERSON. Rupert C. (W) Valley View, R. R. 10 New Brighton. Pa. (Mayer China Co.) ANDERSON. Scott (G) Anderson Physical Laboratory 609 S. Sixth it. Champaign. 111. ANDERSON, Thomas O. 222 Hiilcrest Rd, Raieign, N. C. ANDERSON, William B. (E) Titanium Pigment Corp, 111 Broadway New York 6. N. Y. ANDREASEN, A. H. M. (Honorary) Oster Voldgade 10 Copenhagen K,, Denmark (Royal Danish Technical University) ANDREWS. Andrew I. (Erl) University of Illinois 204 Ceramics Bldg, Urbana. III. ANDREWS. Clifford M. Ferro Enamel S. A, Caixa Postal 2948 Sao Paulo. Brazil ANDREWS. Ray (G) B. F. Drakenteid 4 Co, Inc. Box 519, Washington, Pa. ANTAKI, Emile Ferrara S. A. de Ceramica 4 Metalurgia Espana 402/600 Aveilaneda, Argentina ANTHONY. Benjamin F. (R) Ferro Engineering Co, Box 6303 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. Honorary Members of The Americcn Cercmic Society A. H. M. A.ndreasun Lawrence E. Barringer Frederick Carder Arthur L. Day Jesse T. Littleton Frank H Riddle Robert B. Sos.man Charles W. Thomas W. E. S. Turner Arthur 5. Watts Post Presidents of The American Ceramic Society Arthur S. Watts Lawrence E. Barringer Homer F. Staley Frank H. Riddle E. Ward Tillotson Robert L. Clare MacDonald C. Booze George A. Bole Emerson P. Poste John C. Hostetter Francis C. Flint Robert B. Sosman Victor V. Kelsey Andrew I. Andrews John L. Carrutkers Jesse T. Littleton Louis J. Trostel Edwin H. Fritz James E. Hansen John D. Sullivan John W. Whittemore Hobart M. Kraner J. W. Hspplewhite H. R. Lillie W. E. Cramer R. R. DANTELSON Ray- W. Papford Robert Twells Karl Schwartzwalder ANTUXEZ. Florencio (G) Cerveceria Mocrezuma. 5. A. rabrica de 3otelias Apartado Postal 198 Orizaba. Ver, Mexico ANTUNEZ de MAYOLO. Santiago E. Industria Nacional Ceramica v Anexos Casilla Postal 345. Lima, Peru ANWYL. Robert H. (S) 202 E. Main St, Smethport. Pa. (Kaul Clay Mfg. Co.) ARANGO, G. Botero Balboa 63-13. Medellin. Colombia (Cristaleria Peidar S. A.) ARCHBOLD. Walter H.. Jr. (MI) 125 Smailwood Dr, Snyder 26. X. 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. Roster 3 I'A RCJ F. NTE U II. Curr.te L. <le Mccjs X. V. Ccramiiue Maastricht l'ostbus 11 J. Maastricht. Netherlands iRGILAS e MINERIOS INDUSTRIAL "AREMINA" S. A. ( Tzc-Ching Chin) Rua 3arao uc Jaguara 192-t--:0.10 Sao Paulo. Brazil tRl ZS. Robert 5. (R) 77 South St.. Stamford, Conn. ( R. S. Aries 3i Associates) iBKETEX CERAMIC CORP. (George W. Shoemaker) 6 X. Walnut Sc., Brazil, Ind. .RLE7T. Robert H. (Wj) Rutgers, The State University School of Ceramics New Brunswick, X. J. JJMCO STEEL CORP. (R. S. Bums) Research Library, Middletown, Ohio RMISTEAD. W. H. (CF> 65 E. First St., Corning. X. Y. (Corning Glass Works) RMSTRONG CORK CO. (E. C. Emanuel) Research 4 Development Center Lancaster. Pa. RMSTROXG. Leiand R. (RD . 27 Morgan Ave., Washington, Pa. (Findlay Clav Products Co.) RNER. William J. (C-) 1607 Watova Rd.. Toledo 14, Ohio (Libbey.Owens-Ford Glass Co.) RXOLD, Howard C. (EFT) 76 Standish Blvd., Pittsburgh 23. Pa. (Federal Enameling & Stamping Co.) RNOLD, Robert M. (W) Arnold Engineering Co., Marengo. III. 1NOLD. Russell E. (SF) Box E. E. Akron Station Akron 5, Ohio (Robinson Clay Product Co.) INOLD, Thomas M. (WI) Red Wing Potteries, Inc. Red Wing. Minn. IRANCE. Frank C- (WI) Coors Porcelain Co.. Golden, Colo. IRAXDALE. Roy S. i'G> Thatcher Glass Mfg. Co.. Inc. 1901 Grand Central Ave.. Eimira. X. Y. IRAS. George fE) Quadrangle Mfg. Co.. 32 S. Peoria St. Chicago 7, 111. 5EM. William C. (B) 7829 Old Chester Rd. Bethesda 14, Md. (Consultant) .THUR. Edwin ?. (C) 3110 Las Fa Idas Dr., Fullerton, Calif. (Beckman Instruments, Inc.) .WINE, A. S. (R) Refractory 3c Insulation Corp. Port Kennedy, Pa. HER, John W. (G) Box 382. Corning, X. Y. (Coming Glass Works) HWORTH. GEORGE L. * BROTHERS. LTD. (W. Gordon Evans) Broad Street Works Hanley, Stoke-on-Trent, England 3UITH, Milton Redfearn Brothers, Ltd. Honk Bretton Glassworks : Barnsley, England kJClACAO BRASILEIHA >DE CERAMICA Praca Coronel Fernando Prestes, 110 '(Edificio do I.P.T.) Sao Paulo. Brazil frELL. George D., Jr. (S) Eickerstaff Brick Co. Bax 1178. Columbus, Ga. CBL, Konrad F. NetstaJ, Kt. Glarus, Switzerland fOCaikfabrik Netstal Ag.) ff, Neil X. (BI) Kortoa Co., 1 New Bond St. Worcester 6, Mass. 36, No. 10 (1957) AUSKZRN, Allan (3J) Westinghouse Atomic ?oucr Div. Box !4o3. Pittsburgh 30, ?a. AUSTENAL. INC. ( R. C. Feagin), Box 625. Dover, N. .1. AUSTERMAN. Stanley 3. (B) 7006 Ancasol Ave., Van Xuys. Calif. (Atomics International) AUSTIN, Arthur O. (3) Box 109, Barberton. Ohio (A. O- Austin Co.) AUSTIN, Charles E. tS) Consolidated 3rick Co. Horseheads. X. Y. AUSTIN. Chester R. (RFI) Kaiser Engineers Steel Plants Development Div. 1924 Broadway--Kaiser Bldg. Oakland 12. Calif. AUSTIN. Garth F. 76 E. Second S:., Corning, X. Y. AUSTIN. James Bliss (3F) United States Steel Corp. Rm. 2401. 52S William Penn PI. Pittsburgh 30, Pa. AUSTIN. Lewis M. (G) 2334 Middlesex Dr.. Toledo 6, Ohio (Owens-Illinois) AVERY. Robert C. Box 325, Alfred, X. Y. AVRIL. Jack J. 8804 Frances Folson Rd., S.W. Tacoma 99. Wash. AYDELOTT. Elliott C. (Sri) 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 2813. Sao Paulo. Brazil (Ceramics Sanitaria Porcelite S/A) AZPURUA C. J. A. Industria Venezolana de Vidrios Pianos C- A. Ed. Humboldt Ap. 6, Sur Plaza Aitamira Caracas, Venezuela B 3AAB. Kenneth A. (RI) Bethlehem Steel Co.. Research Dept. Bethlehem. Pa. BAAK. Trvggve <0 1321 Old Boaisburg Rd. State College. Pa. (Pennsylvania State University) BAARSON, Robert E. (M) Armour Chemical Div. Flotation Research Section 1355 W. 31st St.. Chicago 9. III. BABA, Paul D. 358 Pennington St.. Elizabeth 2. X. J. BABCOCK. Clarence L. (CF) 1718 Potomac. Toledo 7, Ohio (Owens-Illinois) BABCOCK, M. G. (G) 618 Kenilworth Dr.. Pittsburgh 34. Pa. (Pittsburgh Plate Glass Co.) BABCOCK, Paul sL (WI) Frenchtown Porcelain Co. Frenchtown, X. J. BABCOCK <* WILCOX CO. (J. E. Brinckerhoff) 161 E. 42nd St.. New York 17, X. Y. BACH.. Carl H. (S) 247 E. Chestnut St.. Chicago 11. III. BACH, William E.. Jr. <M) 7712 Fontana Prairie Village 15. Kans. (Aluminum Co. of America) BACHER, Holland R. (W) Rock Tavern, X. Y. (White Cloud Farms. Tnc.) BACHMAN. Charles D. (G) 200 Shelburne Rd., R. R. 2 Millville. N. J. (Armstrong Cork Co.) BACHMAN. George 5. tG/ lil '.V Washington St., ShelbyviHe, Ind. (Pittsburgh Plate Giass Co.) Bachman. James r. (R) Batteiie .Menurai Institute 505 King Ave.. Columbus I, Ohio 3ACKMAN. Wheeler Carr (W; R.R. Grafton. W. Ya. ;Carr China Co.) BACON. Frank R. (GF) 3153 Darlington Rd.. Toieuo s. Ohio ( Owens-Illinois } BADGER. Alfred E. (Gr ) Libbey-Owens-Ford Glass Co. 1701 E. 3road'.\*3v, Toledo 5, Ohio 3AER. G. M. (Kj R. C. Remmey Son Co. Hedlcy 3t. 3c Delaware River Philadelphia 37, Pa. BAG3Y, Richard A. (B) 305 E. Market St.. Salem. Ind. ( Ferro Powdered Metals) 3AGLEY. Norman H. (W) 206 Central Ave.. Caldwell. N. J. (Bell Telephone Laboratories. Inc.) 3AILEY. Floyd (El) 840 S. Sixth Ave.. Kankakee. 111. (A.. O. Smith Corp.) BAILEY', Henry R.. Jr. (B> Goiding-Keene Co. 226 Main 5t.. Keene, X. H. BAILEY', James (GF) 95 Sieeie Rd., West Hartford 7, Conn. (Plax Corp.) BAILEY, Richard J. Doulton Fine China Ltd. Royal Doulton Potteries Bursiem. 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, X. YN BAKER. Arvid H. (G) 300 Catiin Ave.. Port Allegany, Pa. (Pittsburgh Coming Corp.) BAKER. Burton E. (R) 15 Gwyniaxe Dr., Baltimore 7, Md. (General Refractories Co.) BAKER. Daniel R. 606 W. Columbia. Champaign. HI. 3AKER. D Martin (W) 1025 Gardner EWd., 3arberton. Ohio (Ohio 3rass Co.) BAKER. Dur.bar J. (R) 514 W. High St.. Womelsciorf. Pa. (North American Refractories Co.) BAKER. Houston R. (G) 122 Wilson Ave.. Lancaster. Ohio (Sharp-Schurtz Co.) 3AKER. Robert J.. Tr. 1104 W. Stoughton, Urbana. 111. 3AKER. Robert L. (G) 46 Highland Ave., Wellsville. X. Y. (Air Preheater Corp.) BAKER. Theodore C. (G' 3/42 Drummond Rd., Toledo 13. Ohio (Owens-Illinois) BAKKEX. A. C.. Jr. (M) Aluminum Co. of America 1880 Elmwood Ave.. Butfalo 7, X. Y. BALDAUF. Earl E. (WI) Flamingo Tile Corp., Box 112 Lake Wales. Ha. BALDRY, Stanley F. T. E. R. G. Industrial Corp., Ltd. Lnton Rd,, Dunstable, Beds London, England BALDWIN, W. J. (W) Titanium Alloy Mfg. Div., National Lead Co.. Box C Bridge Station. Niagara Falls, X. Y. 3ALIXA. Marcelo O. C.A.P.E.A. Lanus--KM 7 C Gral. Belgrano Buenos Aires. Argentina BALINKIN, Isay fW) University of Cincinnati Cincinnati 21, Ohio Roster 5 B A LIN T. Louis J. < 3.1 I4I35 Story Rd.. San Jose 27. Calif. 1 Kaiser Aluminum & Chemical Carp.) BALL, Albert L. (R) Bay State Abrasive Products Co. Westboro, Mass. BALL BROTHERS CO.. INC. Muncie. Ir.d. 3ANERJEE. A. Behar Firebricks 5: Potteries Ltd. P. 0. Mugma. Dist. Manohurr., India BAQL'E, Harold W. (01) Cornart Refractories Co. 940 Commonwealth Bid?. Louisville 2, Ky. BARBA. Charles E. Jr. (M) Creek Rd.. R. R. 1. Doyiestown. Pa. (Harper Electric Furnace Corp.) BARBER, Fred O. (M) 738 Evening St., Worthington, Ohio (Harrop Ceramic Service Co.) BARBER, Stephen \V. (G) Owens-Illinois 1700 X. Westwood Ave., Toledo I, Ohio BARBOUR. David J. (WF) 345 E. Highland Dr., Zanesville. Ohio BAR3RE, Norris H. (S) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. 3ARCK. Frank N. (S) Frank X. Barch ?< Co. 700 Wood St.. Pittsburgh 21. Pa. BARIUM REDUCTION CORP. <K. O. Priddy) South Charleston 3. W. Va. BARKER. Harry L. (\V) 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, 3ox 575. Tacoma. Wash. BARNES. Harry II. (BI) Wah Char.? Corp.. Zirconium Div. Box 366. Albany, Ore. BARNES, Wilson R. (R) Corhart Refractories Co. 16th Sc Lee Sts., Louisville 10, Ky. BARNET, Joaquin Ceramieas XIi*per Apartado 124J, Havana, Cuba BARNEY. Ronald N. iB^ 1331 Prospect Dr.. Kynlyn Apts. Wilmington .1, Dei. (E. I. du Pont de Nemours Sc Co.) BARON. Jean Laboratoire de Controle des Produits Refractaires 15, Place Carnot Nancy (Meurthe et Moselle) France BARR. Harold N\ (B) Martin 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. fMV Texas Power St Light Co.1518 K St.. N. W. Washington 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. BARRETT. E. L. (R) Oias. Taylor Sons Co. South Shore. Ky. BARRETT. Harvey N., Jr. (R) 2233 St James Parkway t Cleveland Heights, Ohio (Basic. Inc.) [BARRETT. Maurice (Life) \ 8. OxclifFe Rd. Morecambe and Heysham. England |Vol. 36. No. 10 (1957) BARRETT. Wayne .i: 1127 2Uth St.. Wc-i iuu:i (Oskaioosa Clav Products Co.; BARRINGER. Lawrence E. ( Honorary, W FI) 23 Front St., Schenectady 5, N. V. (General Electric Co.) BARROWS PORCELAIN ENAMEL CORP. (.Woodrow Carpenter; Langdon Rd. & Penn R. R. Cincinnati 13. Ohio B-VRT. Ronald K. 5dJ W. Washington. Champaign. 111. BARTA. R. Technicka ul.c.5. Praha XIX. Czechoslovakia (Technical Univcrsitv) BARTHOLOMEW. George A. (S) United States Steel Corp. 525 William Penn Place. Rm. 2210 Pittsburgh 30, Pa. BARTHOLOMEW, George L. 4220 Lewiston Rd. Niagara Falls. N. Y. BARTLETT-COLLINS CO. (Harrison I. Bartlett) Box 519 Sapulpa. Okla. BARTLETT, E. E. (G) 4387 Boca Chica Blvd. Brownsville, Texas (Bartlett-Collins Co.) BARTLETT. Harrison I. (G> Bartlett-Collins Co., 3ox 519 Sapulpa, Okla. BARTON. Donald E. S. G. F. K. Refractories Ltd. 49 Moorgate, London E. C. 2. England BARTON. James E. Box 2435, CIem50n College Sta. Clemson. S. C. BARZAGHI, Luciano Ceramica Sao Caetano Rua Roa Vista. 133-4* andar Caixa Postal 273. Sao Paulo. Brazil BASKIN. Yehuda (3) Armour Research Foundation Ceramics Dept., 10 W. 35th St. Chicago 16. III. BASIC INC. {H. C. Lee) 345 Har.r.a Bldg., Cleveland 15. Ohio BASS. N. W. (R) Brush 3eryllium Co.. 4JO 1 Perkins Ave. Cleveland 3. Ohio BASSETT. Leon B. (B) Box 234. Alfred. N. Y. (State University ax New York. College of Ceramics) BASSETT, Ray E. (S) Acme Brick Co.. Box 425 Fort Worth 1. Texas BASSETT, Robert (S) Central Commerciai Co. Darlington. Beaver County, Pa. BATEMAN. L. A. (E) Eljer Co.. Enamel-Ware Div. Salem. Ohio BATES, A. Allan (B) Portland Cement Assn. 33 W. Grand Ave.. Chicago 10, 111. BATES. Charles E. (S) 123 Walnut Sc.. Brookville. ?a. (Hanley Co.) BATES. Frank O- (B) 9227 Eighth Ave.. Tnglewood 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. ?a. BATESON, H. Marshall 68 Spring Grove Lougfaton, Essex. England (Thermos. Ltd.) BATESON. Sydney (G) Duplate Canada Ltd. Oshawa. Ont.. Canada BATRUK. Stanley J.. Jr. (E) New Jersey Zinc Co. 160 Front St.. New York 33. X. Y. 3A ,, 1 . A. George 3e.\ 747. Alfred. N. Y. BAUER. Richard M. (M} 723 5:. Louis Ave.. Zanesville. Ohio (Mosaic Tile Co.) Bauer, woi* g. ts* 5o2J Seav:e-.v Ave.. Seattle 7. Wash. (Consulting Engineer) 3AULZXH. Maynard P. < \Y 1 n`10 Meadow Brook BKa. M ir.neaj-Mis 26. M ini;. M inrieapoiis - Honeywell Regulator Co.; BAUM, Frederick J., Jr. (B) E. I. du Pont de Nemours Sc Co., Ir.c. Experimental Station. Chemical Dept. Wilmington, Dei. BAUM. Joseph W. (G) 200 Highland Ave., Rensselaer, N. Y. (Sterl:ng*Winthrop Research Ins:.) BAUMANN. Henry N., Jr. (3Ft) 1275 Wyoming Ave. Niagara Falls, N. Y. (Carborundum Co.) BAUMER. Leon N. (R) 240 Rockingham Rd., Pittsburgh 33, Pa. (Mellon Institute) BAUMLER. Karl (G) Pittsburgh Corning Corp., Sedalia, Mo. BAUSCH & LOMB OPTICAL CO. (Murray Scott) Rochester 2, N. Y. BAXTER. Allen J. (G)_ 106 Redwood Dr., Greenville. Ohio (Corning Glass Works) BAYLISS. John M. (R) 629 Frederick St., Lancaster. Ohio (Harbison-Walker Refractories C-> ; BAY STATE ABRASIVE PRODUCTS CO, (O. S. Buckner) Westboro. Mass. 3EAL5. M. Douglas (BI) 104 Forest Rd., Famvnmi. X. J. (Titanium Alloy Mfg. Div., National Lead Co.) BEALS. Robert J. i\VI) University of Illinois 111 Ceramics Bldg., Urbana. III. BEAM. James R. (WFI) 300 Ruth Ave.. Mansneld. Ohio ''Ceramic Engineering Service J BEARD. Clinton L. (Wt) Globe-Union. Inc., 900 E. Keefe Ave. Milwaukee !2. Wise. BEARDSLEY. Clinton J. -W) 666 F.. Findlay St.. Carey. Ohio ( Porcelain products. Inc.) BEASLEY. Dennis R. (G) R. 4-BxiHB-Suncre-t Lk. Adda. Morgantown. W. Va. * Beaumont Co.) BEASLEY. Robert M. (G) Coming Glass Works, Corning. N. Y. BF.ASLEY. William D. Johnson Brothers (Hanley) Ltd. Stoke-on-Trent. England BEATHARD. Robert K. (W) General Tile Corp., Box 38 El Segundo, Calif. BEATON. Orville ( R) Gem Clay Forming Co.. Sebring, Ohio BEAVER. Wallace W. (B) Brush Beryllium Co., 4301 Perkins Ave. Geveland 3, Ohio BEAZELL. William H. (G) American Window Glass Co. 20th Floor. Farmers Bank Bldg. Pittsburgh 22, Pa. BEBBIXGTON. Philip J. (R) 30 Exeter St,, Morris Plains, X. J. (Attstenal. Tnc.) BECHTXER. Paul (M) American Colloid Co. 813 Merchandise Mart. Chicago 54, 111. BECK. Elmer W. (M) Ceramic Supply Co.. Crooksville, Ohio BECK, J. Howard (M) 3TU Engineering Co. 440 Somerville Ave. Somerville 43. Mass. Roster 7 3E'_K, Nor^in R. t.G) Carr-Lowrcy Glass Co. Baltimore 3. Md. BECK, Warren R. C33 Minnesota Mining & M:g. Co. 900 rauquier Ave. St. Paul 6. Minn. BECKZMEYEE. Harry J. (W) Universai-Rundle Cor?. \V. Kef_n McAfee Lab., Box 1263 Mahonir.gtown, Pa. BECKER. Brace N. (Gi 629 New Holland Ave.. Lancaster, Pa. (Radio Carp, of America/ BECKER. Martin G. (S3 Brookhaven Pressed Brick & Mfg. Co. Box 5a2. 3rookhaven. Miss. BECKER. Walter D. (S) Brookhaven Pressed Brick & Mfg. Co. Box 542, Brookhaven, Miss. BEEBE. Donald R. 12126 S. Perry Ave.. Chicago 23. 111. BEECHER, Miiton F. (RFI) 50 Woodland Rd., Holden, Mass. (Morton Co.) BEELER. L. S. (W) Reynolds Metals Co.. 2500 S. Third St. Louisville 1, Ky. BEERMAN. Henry ?. (B) Radiation Electronics Corp. 3241 X. Kimball Ave., Skokie. III. BEERS, Roland F. (B) Box 1019. Troy, X. Y. (Roland F. Beers. Inc.) BEETON. Earl E. (GI) 1604 Lincoln St., Bethlehem, Pa. (Western Electric Co.) BEGGEROW, Charles W. 309 Osceola Ave.. Lake Wales, Fla. BEGIEX, Virginia American Ceramic Society 4055 X. High St. Columbus 14, Ohio BEGLEY. Hiram C. <S) Corbin 3rick Co.. Box 5/4. Corbin. Kv. BEHAR FIREBRICKS & POTTERIES LTD. (A.. Banerjee) P. O. Mugtna, Dist. Manbhum, India BEHREND. Oswald (R) 2557 Ecbinwood. Toledo, Ohio (Owens-Illinois) 3EHRIXGER. K. L. (G) Tygart Vailey Glass Co. Washington. Pa. BEINLICH. Alfred W. (R) 3404 19th Ave.. Shemeid. .Ala. (Tennessee Valley Authority) BEINLICH. Justus J. (R) United States Steel Corn., Room 2421 525 William Penn Place Pittsburgh 30, Pa. BELANDRES. Constanre Philippine Bureau of Mines Herran St.. Manila. Philippines BELD. George H. (E) Kelvinator Div. American Motors Corp. 1600 Clyde park Ave., S. W. Grand Rapids 9, Mich. BELKOWSKI. Arthur V. (W1 454 Con very Blvd. Perth Amboy. X. J. (New Jersey Porcelain Co.) BELL, Clarence D. fWJ) 410 N. Seventh St.. Cambridge. Ohio (Champion Spark Plug Co.) BELL. Kenneth E. (S) 349 Lacasse Ave., Apt. 6 Eastview. Ont.. Canada (Ottawa Brick Sc Terra Cotta Co.. Ltd.) BELL. Richard (M) Bell Clay Co.. Gleason. Tenn. BELLAMY. Harry T. (R) c/o American Embassy, APO 74. 3ox K San Francisco. Calif. (Armour Research Foundation) BELLAMY. L. B. (R) Abrasive 3c Metal Products Co. 729 Meidrum Ave.. Detroit 7. Mich. Vol. 36, No. 10 (1957) BELLE. Jack '.Bl Weatinghuuse Electric Corp. Atomic Power Div.. 2c:::s Field * Box 1468. Pittsburgh 30. Pa. BELLIDO. Bartolume Darr.is Director Cerente de M E R S A Lugones (Oviedo*. Spain BELOW. Henry (W) Pemsbury Pottery, Morrisviile. ?a. BENBENEK, Raymond (Si) Canada Brick. Ltd. Streetsville, Ont., Car.aca BENDER, John H. (R) Denver Fire Clay Co.. 3ox 5510 Denver 17, Colo. BENEDICT. Virginia American Ceramic Society 4055 N. High S:.. Columbus 14, Ohio BENJAMIN ELECTRIC MFG. CO. (Hoyt P. Steele) Des Plaines, III. BENNER. Stanley G. (E) Johns-Manville Research Center Manville, N. J. BENNETT. A. H. (G) American Optical Co.. Research Center Southbridge, Mass. BENNETT, A. Lee (Sri) 1850 Las Flores Dr., Glendale, Calif. (Pacific Clay Products) BENNETT, Dwight G. (Erl) 204 Ceramics Bldg. University of Illinois. Urbana, III. BENNETT. Frederick R/ (R) Box 525, Hartsville. S. C. (Carolina Refractories Co.) BENNETT. Marvin <\V) 1100 Gilham St.. Philadelphia 11. Pa. (F-T-E Circuit Breaker Co.) BENNETT. Myles P. (BI) 6552 N. Oldham Lane San Gabriel. Calif. (Gladding, McBean <Sc Co.) BENNETT. Philip M. fR) 215 Amboy Ave.. Metuchen. N. J. (Such Clav Co.) BENNETT. Walter R. (S) Acme Brick Co.. Miilsap. Texas BENSON. Edward (R) New Departure Div. General Motors Corp.. Bristol. Conn. BENTZ. Oenrge B. CM) National Plumbing Pottery, Inc. 505 N. Front St., Columbus !5, Ohio BEXZEL. James F. 597 Front St.. 3erea. Ohio BERG, Morris f3) 315 Pleasure Rd.. Lancaster, Pa. (Radio Corp. of America) BERGER. Bernard M. (El Dept. 317. Sears. Roebuck & Co. 925 S. Homan Ave.. Chicago 44. III. BERGER. Donald F. (G) 210 Benjamin Rd.. North Madison. O. (Diamond Alkali Co.) BERGERON. Gifton G. (El) University of Illinois Dept, of Ceramic Engineering Urbana. 111. 3ERG-IVERSEN. Wiggo A/S Egcrsnnds Fayancefabriks Co. Egersund. Norwav BERKELHAMER. Louis H. (El) 5621 W. Howard St., Skokie. 111. (Ohmite Mfg. Co.) BERNARDINI. Guy F. (W) Box 19, R. R. 1. Latrobe, Pa. (Stupakoff Div., Carborundum Co.) BERNHARD. Herbert L. (R) 2017 Shirley Ave., Augusta. Ga. (Babcock i Wilcox Co.) BERNS. Miltoa H. (M) 249 Charlotte Ave., Hamburg, N. Y. (Electro Refractories & Abrasives Corp.) BERRY, Thomas F. (B) 527 54th St.. Union City. N. J. (Radio Corp. of America) BESSE. Richard W. (W) Onondaga Pottery Co.. 2900 Court St. Syracuse. N. Y. 3ESSEY. '.icnrge E. Chalk Lime Allied Industries Roearch Association, 5<`a Church St. W'fiiiyn, Herts. England BEST. Edison F. (G) Lifcbey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5. Ohio 3EST. WILLIAM S. (S) R.R. 5. New 3c:hiehem. ?a. (New 3eth:ehem Tile Co.) 3ESTHOFr. Anthony W. (GJ) Faesy & 3es:horf. Inc. 55-55 E. 56th St., New York. N. Y. 3E5TUL. A!den 3. (Bl 5151 Newport Ave. Washington 16. D. C. (National Bureau of Standards) BETHLEHEM STEEL CO. (Hobar: M. Kraner) Bethlehem. Pa. BETTISON, L. S. (S) Chambers Brothers Co. 52nd & Media St., Philadelphia 51, Pa. BETZ. George C. (WrD Metal Thermit Corp. 100 Park Ave., New York 17, N. Y. BETZ. Wilbert A. (W) U. S. Potters Assn. 104 E. Fourth Sc., East Liverpool, Ohio 3EVIS. Ralph E. (ED 1315 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, 661-663 Edgecombe Ave. New York 32. N. Y. Inc. B. G. CORP. (N. Heilman. III). 321 3road Ave. Ridgefield. N. T. BHALLA. Air.rit K. (W) National Tile & Mfg. Ca. 1200 E. 56th St.. Anderson. I .id. BICXERSTAFF CLAY PRODUCTS CO. (L. X. Bickerstaff) Box 1173 Columbus. Ga. BICXERSTAFF. L. N. (S) 3ickerstarf C!ay Products Co. 3ox 1173. Columbus. Ga. BICKFORD. Fred A. (G) Box 29. R.R. 5, Campbell. N. Y. (Corning Glass Works) BIDDLE. George J. (R) 208 S. LaSaile St.. Chicago 4, III. (Illinois Gay Products Co.) 3IDDULPH. Albert II Koiden Rd. Wolverhampton. England (Ferro Enamels Ltd.) BIELSTEIN. Hans O. (R) Aeronautical Research Lab. (WCLJL) Metallurgy Research Branch WADC. Wright-Pattersnn AFB. Ohio BILLHEIMER. John E. (WJ) Highwood, Easton Ave. New Brunswick. N. J. (Mitchell-Bissell Co.) BILLIAN, Can-oil J. (G) Owens-Illinois General Research Div. 1700 N. Westwood Ave., Toledo I, Ohio BINDER. David G. 209 E. Armory, Champaign. 111. BIONDI. Joe 2310 E. 52nd St.. Los Angeles 58, Calif. BIRCH. Raymond E. (RFI) Harbison-Walker Refractories Co. 307 Fifth Ave.. Pittsburgh 22. Pa. BIRSE. Alexander L. John G. Stein & Co.. Ltd. Bonnybridge, Scotland BrSHOP. Frederic L. (GF) Kimble Glass Co. Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio Roster 9 BISHOP. 'jc^r^c J.. MI <) Columbia Brick dt Tile Co. Box 32d7. Columbia. 6. C. BISHOP. Harold E (G) Owens-Corninq Fiberglaj Corp. Anderson. S. C. BISHOP. La1, erne R. R) Alu:ninum Co ot" America 5500 Missouri Ave., East St. Louis, III. BISSELL. Don W . Jr. ( RI) 70J Greer. 5:.. Rocktcn, III. t Ipsen Ceramics Inc.) 31SSET, Ronald '.V. 1W1 Aluminium Limited Sales, Inc. 630 Fifth Ave.. New York 20, N. Y. BISTLINE. Walter A. iGJ) Pittsburgh Plate Gia>s Co. Creiijhion. Pa. BIXBY, Henry D. (S) Central Commercial Co. Darlington, Beaver County, Pa. BLACK, H. R. (G) Kimble Glass Co. 1700 N. Westwood Ave., Toiedo, Ohio BLACKBURN, A. Reif (MI) 204 N. State St., Westerville, Ohio (Ram, Inc.) 3LACKMAR. Robert J. Box.lOiH. Alfred. N. Y. BLACKWOOD. James M. (RI) 124 First St.. Niagara Falls, N. Y. (Carborundum Co.) 3L.AES, Henry M,, li (3) 339 N. Hoover Ave., Whittier, Calif. (North American Aviation) BLAHA, Emil (R) 415 Ashmead Rd.. Cheltenham, Pa. (Selas Corp. of America) BLAIR. Geraid E. all E. Foster Ave.. State College, Pa. BLAIR, Marion W. (SF) 2131 S. Center St., Terre Haute, Ind. (Manufacturers Equipment Co.) BLAIR. William H. (Ml 3935 Bryn Ma.vr Dr.. Dallas. Texas 1:0. Hommel Co.) B LA ISON, Pierre Societe des Electrodes & Refractaires 'Savoie" 16. Rue de Monceau. Paris 3*, France 3LAKE. William V. (RI) Macklin .Abrasive Co., Jackson. Mich. BLAKELY. Alexander M. (3) Precision Grinding Wheel Co.. Inc. 3301 Torresdale Ave. Philadelphia Jo. pa. BLANCHARD. M. Kenneth (E) A. O. Smith Corp.. 3533 N. 27th St. Milwaukee I. Wise. BLAU. Henry H. (GFI) Federal Glass Co.. 515 E. Innis Ave. Columbus 7. Ohio BLAZE. Joseph E.. Jr. Box 153, Alfred. X. Y. BLAZOVIC. Phil. Jr. (M) 3236 Western Ave. Highland Park. 111. (Consolidated Feldspar Dept. International Minerals St Chern. Corp.) BLECHEISEN. J. (E) Rosiclare Lead & Fluorspar Mining Co. Rosiclare. 111. BLENKO. William Henry, Jr. (G) 1412 Main St., Milton. W. Va. (Bleoko Glass Co., Inc.) BLESSING, Robert Lee (SI) 1714 Crestwood Dr. Mineral Wells. Texas (Texan Vitrified Pipe Co.) BLISS, Roderick T. fS) 35 E. Center St., Nesquehoning, Pa. (Deister Concentrator Co.) BLITON. Jerald 92 William St.. Tonawanda. N. Y. BLOC2CSIDGE. Arthur B.. Jr. (R) Jones & Laughlin Steel Corp. 40 Longwonh St.. Pittsburgh 7, Pa. Vol. 3G, No. 10 (1057) B LO l>( h. : T. W iiIia rt E, \\ * II Ljkcvic.v Terracr. .'. 'Mini, .Ma-i. ( R. < iu.iravtno Co.; BLOMh.. Janies C. 22V S. i'cnn.'yiv diiia ,\\c. Belle*, die, III. BLOOM. Ray A. (R;. Technical Library Timken Roller Bearing Co. Canton 6. Ohio BLOORE, Robert Boultcn S winner tons. Ltd. Hanley. Stoke-on-Trent. England BLOL'N'T, Bruce iW) Gilmer Potteries. Inc.. Box 4S9 Gilmer. Texas BLUE RIDGE GLASS CORP. (J. H. Lewis) Kingsport, Tenn. BLUM, Seymour \VI) Raytheon Manufacturing Co. Research Div. Waltham, Mass. BLUME, Anfaur J. (SI) Murray Tile Co.. Cloverport. Ky. BLUMER. rridolin (D) Lane Gate Rd. Cold Spring, Putnam Co., N. Y. ( Commercial Decal. Inc.) BLUNT. Royden A. (GF) 3uck Glass Co., 841 E. Fort Ave. Baltimore 30. Md. BLYTHE COLOUR WORKS. LTD. Cresswell, Stoke-on-Trent, England BOARDMAN, Charlotte K. (R) Thomas A. Edison, Inc. 31 Lakeside Ave., West Orange, N. J. BOBROWSKY. A. R. (R) 2012 Pontiac Rd.. Ann Arbor, Mich. (Nucor Research. Inc.) BOEKER. V. W. (GI) Owens-Coming Fiberglas Corp. 598 Madison Ave.. New York 22, N. Y. 30GATAY. Paul <D) aS \V. Weisheimer Rd. Columbus la, Ohio (Ohio State University) BOONAR. Edwin J. (RI) Bognar & Co- Inc. IT! I First National Bank 3ldg. Pittsburgh 22. Pa. BOH LING. Wiiliam C. 1305 E. Sixth. Washington. Mo. BOHN. Edward L. (R) Mullite Works. Re:r. Div. H. K. Porter Co., inc. 10 Canal St.. Shelton. Conn. BOLANOVICH. Melvin (S) 3118 Palmer Sq., Chicago 47. III. (Illinois Brick Co.) BOLE, George A. (XF) Engineering Experiment Station Ohio State University Columbus 10, Ohio BOLES. Sam J. Iowa State Collette Elm Hall. Ames. Iowa BOLIN. William J. < E) American Zinc Sales Co. Box 327. Columbus. Ohio BOLIXGER. Phillip N. 2247 Grassmere .Ave.. Columbus 11, Ohio BOLLEN. W. J. Algemene Vereniging voor de Nederlandse, Aardewerk en Glasindustrie, Haagweg 139 Rijswijk, Netherlands BOLLINGER. Robert H. (MI) Georgia Kaolin Co., 433 N. Broad St. Elizabeth 3. X. J. BOLON, David G. (RI) R. R. 19. Box 381. Indianapolis. Ind. (Manufacturers' Agent) BOLTON. Harry L. (R) Philadelphia Quartz Co. Public Ledger Bldg. Independence Square Philadelphia 6, Pa. BOLZ, Leonard H. (B) National Bureau of Standards, D;v. ? Conn. Ave. <& Van Ness Washington 25. D. C. 30.VDS. Barham C. R. R. I. Bi*x 2t)5 iji 30NE3RAKE. H. P. (M .Aluminum Co. of America 1501 .Alcoa Bldg., Pittsburgh 19 Pa BONNOT CO. (3. ?. 3onnou 722 Mulberry Rd.. S. a. , Canton 2. BONNOT. B. T. (MF) Bonnot Co., 722 Mulberry 3d , 5. . Canton 2, Ohio 30XSTEIN. Thomas E. (W, Paper Makers Importing Co., Inc. 44 S. Second St., Easton. ?a. BOOTH. John F. Hazlehead Hail, Penistor.e, Nr. Snemeic Sheffield, York, England (Hepworth Iron Co.. Ltd.) BOOY. Enmiv C. B..x "j". Alfred. N. Y. BOOZE. M. C. (RFI) 4725 Walton Creek Rd. Cincinnati 27, Ohio < Consultant) BOPP. Charles D. f B > 620 W. Vamierbiit ur. Oak Ridge. Tenn. (Oak Ridge National I.al.t EOPP. Harold F. (CF; 67 Gorton St., Corning. N. Y. (Coming Glass Works) BOROFSKY. Arnold J. (R> Fenwal. Inc., Ashland. Ma>>*. BOROS. John (W) Pacific Tile it Porcelain Co. 7716 E. Olive St., Paramount. Calif. BORRELLO. Giuseppe Coniigliano. Piazza Dante 7 Genova. Italy BOSCH, F. M. Lab. Anorganisch-Tech. <5c Electro chemie 22 Plateatistraat. Ghent. 3elgjum 30SLER. Krell iW) I (100 Yorkwood Dr.. Mansfield. ( Ingersoil-Humphryes Div. Borg-Warner Corp.I Ohio 30TFIELD, George 3. (Rx* Botheid Refractories Co. Swanson 3t Clymer Sts. Philadelohia J7. Pa. BOTFIELD REFRACTORIES CO. (George B. 3otfieid) Swanson St Clymer Sts. Philadelphia 47, Pa. BOTHE. James V. (G) 3 Pyrex St.. Coming. N. Y. (Coming Glass Works) BOUDER. Norman M.t Jr. (G) 913 Northern Pky.. Baltimore 12. Md. (Pemco Corp.) BOURGERIE. R. D. (W) Radio Materials Corp. 3325 N. California Ave,. Chicago IS. III. BOVARD. Richard F. (G) Pittsburgh Plate Glass Co.. Works 2?10 Henrvetta. Okla. BOVEE. Benedict A. (M) 1837 Winter Rd. Grand Island, R.F.D., N. Y. (Harper Electric Furnace Corp.) BOWDEN. James J. (B) Bowriux Co., Box 65, Cortland. Ohio BOWEN ENGINEERING. INC. (William A. Bowen) North Branch, N. J. BOWEN. Robert G. 273 '*B** St.. Clemson. S. C. BOWEN. William A. (W) Bowen Engineering, Inc. North Branch, N. J. BOWER. David X. (G) 3^15 F.Imhurst. Toledo 13. Ohio {Owens-Illinois) Roster 11 BOWERS. Doraiu J. (B) 'J5u Highiari'.I Or.. Oil i: rrc bus i^hio ( Battrile Memorial -rsiituie; BOWES. Urban E. i.Cr; J15 E. Krone St., Perrysburg, Ohio 1 Owens-Illinois I BOWMAN. Donald C. (E; 579 S. Craig PI., Lombard. 111. (Chicago Vitreous Corp.) BOWMAN. D. Scott :M! Carborundum Co.. Giobar Div. Niagara Falls, N. Y. BOWMAN, Eugene D. i G) lal* Carolwocd Ate. Columbus 13, Ohio (Kimble Glass Co.) BOWMAN, George A. *02 E. Armorv, Champaign. III. BOWMAN. James A. Box 1236. Georgia Tech. Sta. Atlanta. Ga. BOWMAN, John G. (W) 2-M S. Juliana St., Bedford. Pa. BOWMAN. Robert R. ( R) Harbison-Walker Refractories Co. 609 Jackson Bldg., 3utTalo 2, N. Y. BOWNE. Martin S. (SI) Lee Clay Products Co., Inc. -Cearield. 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. Frantz Co., Inc. Box 1138, Trenton 5, N. J. BOYD, John E. (MI) Box 2414, Greensboro, N. C. (Carolina Pyrophyllite Co.) BOYD. L. R.. Jr. (5) Teague Brick 4 Tile Co., Box 329 Teague, Texas 30YD, Robert C. (EFI) American Standard, 1641 S. Seventh St. Louisville 8, Ky. BOYD. William W. GV1 II52S--J9th N. E.. Seattle 55. Wash, ij. R. simplot Co.) BOYLES. John P. (W) Edwin M. Know-les China Co. Neweil. W. Va. BOYNTON. Claudia G. (DF) z.54 Cedar. Chicago 11, III. (Industrial Publications, Inc.) BOYNTON, Robert S. (X) National Lime Assn. 925 15th St. N. W. Washington 5, D. C. BOZZO, J. G. (G) Pierce Glass Co.. Railroad Ave. Port .Allegany, ?a. BRACKBILL. Charles E. (W) 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 BRADFORD. Virgil E. (W) 126 Cochran Way, Apt. 20 New Castle. Pa. (Universal-Rundle Corp.) BRADLEY, Alan L. Cullinan Refractories Ltd. P. O. Olifantsfontein Transvaal, Sooth Africa BRADLEY, Charles A.. Jr. (G) Pisewood Acres, R. R. 3, Coming, N. Y. (Coming Glass Works) Vol. 36. No. 10 (1957) 3 R A D L E \ . Fennimorc N . i '.VI) 94'j Oregon St.. Palo Al:o, Calif. (Lockheed Aircrat: Corp. > 3 RAD LEV. Richard S. `RFIl 4 Park Cifcie. Mexico. Mo. (A. r. Green Fire Brick Co.; BRADLEY. Robert E. 3004 Cardinal Dr.. Augu>:a. Ga. BRAD5TREET. Samuel W. ii Armour Research Foundation 10 W. 35th St.. Chicago 16. III. BRADWELL. Cyrii ( RI) Pirxhurst Apts. 73 3arbara Marion Sts.. Bethlehem, Pa. (Bethlehem Steel Co.) BRADY. Earl (S) Box 52J. Waskom, Texas (.Acme 3rick Co.) BRADY. John G. (B) Dept, of Mines & Technical Surveys Ceramic Section, 40 Lydia St. Ottawa, Ont., Canada 3RADY, Justin M. (M) 1320 N\ Delaware, Apt. 604 Indianapolis, Ind. (American Art Clay Co.) 3RADY. T. E. (R) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio BRAIN, Douglas G. (W) 1960 Jane St. Toronto IS, 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 St Stone Co. Pinev River. Va. BRANDES. Eric A. Fulmer Research Institute Ltd. Stoke Poges. Bucks. England BRANDT. Kristian H. (B) 1076 Xaresh Ave., Pomona. Calif. (Convair) BRANDT. Martha W. <G) National Glass Budget !6 Empire Bldg.. Pittsburgh 22, Pa. BRANDT. Neiil M. (G) Mdlon Institute. 4400 Fifth Ave. Pittsburgh 13. Pa. 3RAXDT. William O. < RFI) Gladding. Mc3ean 3: Co. 945 Elliott Ave.. \V. Seattle 9 Wash. 3RANT. Arthur M. (R) 156 Hampden Park Dr.. Timn. Ohio (Basic. Inc.) 3RANT. David G. (RI) 39 Valley View, Timn. Ohio (Basic. Inc.) 3RASHARE5. 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.) 3RATSCHUX. William R. University of Illinois 204 Ceramics Bldg.. Urbana. Id. 3RAUN. Gary A. Box 827. Alfred. N. Y. BRAY. A. C.. Jr. (S) Western Gay Manufacturing Co. Box 176. Helena, Mont. BRAY. Kenneth J. (W) Wenczel Tile Co. Klag <5c Enterprise Ave. Trenton. N. J. BR.AYKOVICH. A. F. (W) 109 Westgate Dr.. Mansfield. Ohio Brasilian Ceramic Society--tte Associacao Brasilsira de Ceramica BRECK, Donald W. (B) Linde Air Products Co. E. Park Dr. & Woodward Ave. Tonawanda. N. Y. 3REEDLOVE. Jame: G. (31j 703 James 3ivd. Signal Mounia:r,, T:nn. (American Lava Carp.) 3REENE, George A. (G) Industrial Coilcics Co. Emler.ton, Pa. 3REEZE, Lewis K. (Ej 501 E. 3S8th h:., Wiliowick, Oh.c (Glascote Products, Inc.) B REiT\V I ES ER. Rcber: H. (Ri l^O.S Bunker Hill R*i.. i'ucbio. CwId (Standard Fire Brick Co.) BREMNER, Robert P. iG* T. L. Smith Co., 2dJ5 N. 32:ul S:. Milwaukee 11, Wise. BRENNER. Harold M. (E) 3. F. Draker.feid Sc Co., Inc. Washington, Pa. BRENNER, R. F. (GF) Anchor Kocking Glass Corp. Lancaster, Ohio 3RESLICH, Francis N., Jr. 3908 14th Ave.. 5.. Seattle 3, Wash. 3RETZ, L. A. (S) 1713 Theodan Dr., Pittsburgh 16, Pa. (NATCO Corp.) BREUER. L. A. G. der Gerresheimer (iashuttenwerke Dusseldorf-Gerresheim. Germany BREWER, Bob (S) Alamo Clay Products Cc., Inc. Box 93, Elmcndorf, 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 Sc., Easton. ?a. BRICKHOUSE. Robert E. (R) 206 Fairlawn 3lvd., Zelienople. Pa. (Johns-Manviile BRIGGS MANUFACTURING CO. (A. J. Raibic) 415 W. Seymour Ave. Cincinnati 16. Ohio BRIGHAM. Ralph V.. Jr. (\YI) Onondaga Pottery Co. IS58 W. Fayette S:.. Syracuse I. N. Y. BRIGHT. Norman F. H. (B) Dept, of Mines St Technical Surveys 522 Booth St.. Ottawa. Ont., Canada BRINCKERHOFF, J. E. (R) Babcock St 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 Riverdaie Rd., Hawthorn E2 Victoria, Australia (Commonwealth Scientific St Industrial Research Organization) BRISTOW.i Robert H. (WI) 4 Sequoia Rd., R. R. I Ballston Lake. X. 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.) Roster 13 B RITTO N, M irvin G. <. B} 121 Hornby Dr., Painted Post. -V. V. (.Corning Glass Works) BROCKWAY GLASS CO.. INC. (F. B. Hess) Brockway. Pa. BROCKWAY, M. C'dtTord (Bi 3*61 Medary Ave.. Coiumbus 2. Ohio i Batteiie Memorial Institute) 3RODIE. Wiliiam T. i.Wi R. R. j, Kittanning, Pa. ( Eljer Co.) 3ROOKE, Stanley Oughtibridge Silica Firebrick Co.. Ltd. Oughtibridge, Sheffield, England iROOKOVER. George 3. (G) J7.15 Maxwell Rd.. Toledo Id. Ohio (Kimble Glass Co.) JROOKS. Marion E. (S) 3ickerstaff, Inc. Box 1173. Columbus. Ga. JROOKS. Robert H. (W) 1733 Pavilion Dr., Pomona, Calif. (Norris-Tbermador Corp.) 1ROSIU5, John P. (G) 403 Emerson Ave., Aspinwail Pittsburgh 15, Pa. (Krieg Piston Ring Co.) IROSKE. William F. (3) AMP Inc.. Eisenhower Blvri. Harrisburg. Pa. :ROWER. William S.. Jr. (WJ) National Bureau of Standards. Div. 9.0 Washington 25, D. C. ROWN, C. Justus. Jr. (G) Liobey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5. Ohio ROWN, Clarence B., Jr. (M) Hardinge Co.. Inc.. York, Pa. ROWN\ Colin C. (G> 21 Medbury Ave., Cuba, N. Y. (Cuba Cheese & Trading Co.) ROWM, Donald Nicol (G) 4 E. Third S:., Coming, N. Y. (Coming Glass Wcrka) ROWM. Donovan P. (RI) 2704 Eldon Ave., Drexel Hill. Pa. (North American Refractories Co.) ROWN. Dwight R. f\V) 5 Edgeuood Lane. Levittown. Pa. (Trenton Potteries Co.) ROWN*. George L. (M) 27 S. VanDien Ave., Ridgewood. X. J. (Lithium Corp. of America. Inc.i ROWN. George Reuben (M) North American Mfg. Co. 4aj5 E. 71st St., Cleveland 5, Ohio ROWN. John J.. Jr. (SI) Redford Brick Co., 12:h 4 Maury St. Richmond, Va. ROWN, Joseph A. (S) Baltimore Brick Co. 3200 E. Madison St., Baltimore 5, Md. IOWN. Lawrence H. (WFI) Box 255. Miami 2, Fla. (Consultant) ROWN, Leslie (W) Lenox, Inc. 50 Meade St.. Trenton 5. N. J. (OWN, Meredith C. (S) 609 .V, Friends Ave. Whittier, Calif. (Consultant) IOWN. Raymond G. (R) Strategic-Udy Processes. Tnc. Box 335, Niagara Fails. N. Y. :OWN\ Raymond J. (XI) Ceramic Age, N'mth-Chesxer Bldg. Cleveland 14, Ohio OWN, Robert W. (R) 806 S. 5Ath St., West Allis 14. Wi-c. (Thiem Products, Inc.) OWN. Roy W. (G) Carborundum Co.. Refractories Di\. Box 268. Perth Amhov, X. J. OWN, Wilbur F. (GF) Libbey-Owens-Ford Glass Co. Roisford, Ohio L. 36, No. 10 (1957) BROWN. William E. (R) Box 217, R.R. 1, Norristown, ?a. (E. J. Lavino 3c Co.) BROUN, W. Richard 3 N. Gi ini ore 3lvd. Wappirvgers Fall*. N. V. BROWNE. Charica M. . i!; Libbey-O-.v e:i?* Ford Glass Co. 1701 E. Broadway, T*jiedi.> Ohio BROWNE. Thomas C. (RI) 211S Orchard Dr. South Plainrield, N. J. (Titanium. Div., National Lead Co.) BROWNELL. Wayne E. (SI) State University of New York College of Ceramics, at Alfred L*niv. Alfred. N. Y. BROWN EWELL. George E. (R) Diamond Alkali Co 4701 Paddock Rd.. Cincinnati 2g. Ohio BROWNING. William C (B) Miiwhite Mud Sales Co. 1092 M 4 M Bldg.. Houston. Texas BRUCHMANN. Helmut t\V) Haeger Potteries. Inc., Dundee. III. BRUEGGERHOFF. Charles (R) Mexican Zinc Co., X. Rosita Coahuila. Mexico BRUHN, Hans W. (R) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky BRUNNER. Cedric D. (W) 106 W. Union, Rockton, III. (Ipsen Ceramics. Inc.) BRUNO. Lucien V. (S) Guignard Brick Works Columbia. S. C. BRUSH. George D. (SI) Harrop Ceramic Service Co. 35 E. Gay St.. Room 413 Columbus 15, Ohio BRYANT, Eugene E. (EFI) Ferro Corp.,'4i50 E. 56th St. Cleveland 5. Ohio BRYCE. Homer L- (S) Henderson Clay Products. Box 370 Henderson. Texas BUCHAN. Charles R. 41 E. Georgia St.. Tallahassee. Fla. BUCHAN. M. A. (RI) A. ?. Greer. Fire Brick Co. Trov, Idaho BUCK. Forrest W.. Jr. (E) .15 Broad St., Park Manor Apr E-S Toms River. "A. J. (Lithium Corn, at America) BUCK GLASS CO. (Roycen A. Blunt) 341 E. Fort Ave.. Baltimore 30, Md. BUCK. Ivan E.. Jr. (E) 1025 Park Ave.. Plainrield. N. J. (Westingnouse Electric Corp.) BUCK. Robert \V. Box 2248. Georgia Tech. Sta. Atlanta. Ga. BUCKLES, Paul E. (MI) 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. i'BI) Bay State Abrasive Products Co. Westboro. Mass. BUEGE. Robert H. (W) Globe-Union. Inc.. 900 F. Keefe Ave. Milwaukee 1. Wise. BUEHLER. Bert P. (S) 2439 Torrington Ave.. Parma 29, Ohio (Oeveland Builders Supply Co.) BUESSEM. W. R. (B) Pennsylvania State University College of Mineral Industries University Park, Pa. BUFFALO CHINA. INC. (R. E. Gould), 75 Haves Place Buffalo 10. N. Y. BUGOSH. John (R) . I. du Pont de Nemours & Co. GrasseJli Chemicals Dept. Experimental Sta., Wilmington. Del. BUILDERS BRICK CO. (R. C. Houiahan) 3800 Ninth A-.e., 5 . Seattle 8. Wash. 3 U L K L E V. Ronald ( B) Socuny Mubii Oii Co., Inc. Research 4 De\ eiopmert Paui.-boro. N. BULL. Dorothy A. Box Alfred. N Y. BL'LLARD. Edward R. (E; Lab. 3. F. Draker.reld St Co., Inc. Washington, Pa. 3ULLARD. Keith (GJ) 2Kingman Terrace. Yonkers, X. Y. (Corning Glass Worksi BULLOCK. Donald J. (W) AC Spark Plug Div. General Motors Corp. 1300 N. Dort Hwy., Flint 2. Mich. BULLOCK, Gordon University at 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 1033--1036, Toledo 1, Ohio BURCHENAL, Charles H. (W) Cambridge Tile Mfg. Co.. Box 71 Cincinnati 15, Ohio BURCHFIEL. B. M. (RFI) 4458 Rosewood PI., Riverside, Caiit. (Consulting Engineer) BURCHFIELD, Paul E. (G) Wyandotte Chemicals Corp. 1609 Biddle Ave.. Wyandotte, Mich. BURDICK. Milton D. (WFI) National Bureau of Standards Engineering Ceramics Section Washington 25. D. C. BURDICK, Sidney D. iG) 104 Argor.ne St.. Corning, X. Y. (Corning Glass Works) BURGESS, Blandford C. (WF) Monticello. Ga. (Consultant) 3URKE, J. E. (3) General Electric Co., Research Lab. Schenectady, N. Y. BURKE. L. Roger (H) 1203 Peooies Bank Bldg. Pittsburgh 22, Pa. (Chas. Tayior Sons Co.) 3URKERT. John G.. Jr. (MJI) 34 Green St.. Vailey Stream, N*. Y. (Grumman Aircraft Engineering Corp.) 3URKHALTER. Edward (SI) 7219 Interiaaken 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. Apartadu 2680:4. Mexico 14. D. F. BURLEY, Newton Ray (W) 1864 Dresden Rd.. Zanesville, Ohio (Burley Clay Products Co.) BURLINGAME. Howard G. (E) 16031 Francisquito Ave. La Puente. Calif. (Carrier Corp.i BURN. Harold J. D. Burn Fireclay Co. Ltd- 76 Tesmnnd Rd. Newcastle-upon-Tyne 2. England 3 URNAND, Guy M. (Life) Messrs. Johnson, Mattbey 4 Co., Ltd. 78. Hatton Garden London. E. C. 1, England BURNS, Frederick L. (W) 400 Grandview Dr. Highland Village. Zanesville. Ohio (National Plumbing Pottery, Inc.) Roster 1 .*> 3URNS. Henry K., Jr. iji 1620 Waveriami Dr.. Macon, Ga. (Burns 3rick Co.) BURNS. R. S. (E) Armco Steel Corp., Research Library Middleto*r.. Ohio 3URRISS. William K. <C) Consolidated Feldspar Dept. International Minerals Chcmicai Corp. 29 X. Wacker Dr.. Chicago 6. III. BURROUGHS. F. H. (\V) Box 1329. Trenton 7, N. J. (Star Porctiain Co.) BURROUGHS. Jack E. 5:03 Taylor Rd., Ft j r t Worth 14. Texas BURTON. Howard B. iC) 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. (SI) 1255 Cardinal Dr.. Pittsburgh 16, Pa. (Natco Corp.) BUSH. Ralph R. (M) 52C McKinley St., North Canton, Ohio / Bonnot Co.) BUSH. W. G.. CO. (John S. Herbert) 174 Third Ave., N., Nashville J, Tenn. BUSHONG. ?.. M. (?.) National Carbon Co.. Tiffin & Town Sts. Fostoria, Ohio BUSSEY, Donald A. (R) Kaiser Aluminum Se. Chemical Corp. Refractories Plant Moss Landing. Calif. BUSTEED. Donald J. (RI) 8 Janet Circle. Shrewsbury, Mass. (Bay State Abrasive Products Co.) BUTCHER. L. H.. CO. (George J. Middleton) 3623 E. Olympic 3!vd. Los Angeies 23, Calif. BUTKOVICH. Edward M. (R) 28^8 E. 97th St., Chicago 17. III. (Muter Co.) BUTLER. C. Edward (RI) Crucible Steel Co. of America 234 Atwood St.. Pittsburgh 13. Pa. BUTLER, ?. W. (W) Akron Porceiain Co., Akron 14, Ohio BUTLER. Sidney R. Pennsylvania State University 305 D. Mineral Industries Bldg. Univer^irv Park, Pa. BUTLER. Thomas J.. Jr. (S) Box 279, Austin 62, Texas (Elgin-Butler Brick Co.) BLTTERFOSS. 3ruce W. 1600 Highland Ave.. Palmyra. N. J. BUTTERWORTH, William N. (G) General Refractories Co. 950 Leader Bldg., Cleveland 14, Ohio BUTTLE. Robert L. (W) 65 Greenhriar Dr. Williamsville 21. X. Y. (Speer Carbon Co.) BUTTON. Daniel D. (BJ) 3236 Dabney 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 Broadway, Oakland 12, Calif. BYRON. Julian K. 750 Fowler St., N. W.. Atlanta. Ga. C CABANILLAS. Oscar Gonzalez (S) Puerto Rico Gay Products Corp. Box 4729, San Juan, Puerto Rico Vol. 36. No. 10 (1957) CABLE. John A. (W) 1011 22r.c St. N. E.. Canton -C Ohio (United States Ceramic 1 lie Co.) CABLE, Margaret (DF) 1:20 San Miguel Ave. Santa Barbara. Caiif. CABLZ, Stephen J. (W) 2615 Eaton. N.W., Canton 9. Ohio lUmted States Ceramic Tile Co.) CABOT, GODFREY L.. INC. (Frank E. Daiey) 46 Bayard St. New 3rur.swick, X. J. CACCAMISE, Charles T. (3) Electro Metallurgical Co., 137 47th St. Niagara Fails, N. Y. CACCIOTTI, Joseph J. (B) 38 Illona Dr., Greenhitls, Ohio (General Electric Co.) CAHILL. Robert T. (R) Corning Glass Works. Corning, N. Y. CAHOON. Harold P. (S) Interstate Brick Co. 3100 S. 11th E.. Salt Lake City. Utah CAHOON. John 3., Jr. (3) 673 5. Livermore Ave. Livermore. Calif. (University of California) CAIN. Robert \V. Electro Metallurgical Co. Box 251, Ashtabula, Ohio CAITO. A. M. (RI) 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, Smiiey, Jr. (G) 717 Newberry Rd.. Nashville, Tenn. (Ford Motor Co.) CALDWELL. Smiley M.. Ill 717 Newberry' Rd. Brook Meade Subdivision Nashville, Tenn. CALDWELL. William D. (El) Perfection Industries, Inc. 1135 Ivanhoe Rd., Cleveland 10. Ohio CALLAHAN. H. D. (WFI) United States Ceramic Tile Co. East Sparta, Ohio CALLAHAN. Robert M. (W) 4553 Seville Ave. Los Angeles 53. Cali:. (Solar Mfg. Co.) CALLINAX, Edward E. (R7I) 133c Spruce St.. R. R. 3 Norristown. Pa. (Alan Wood Steel Co.) CALVa. Roberto (B) 2945 S. Bonn St., Wichita 13. Xans. ( 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) Coming Glass Works. Coming, 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., ShelbyviUe, 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) L':iive:*i:y Washington J04 Roberts Hall. Seattle :. Wash CAMPBELL. Rcber: M. (WFI) Alfred. N Y. (State University or New York. College of Ceramics) CAMPBELL. Tom W. IR) Box 303. Poland. Ohio (Electro Refractories Abrasives Corp.) CAMPBELL. Van E. (W) 363 Highland Ave.. Wadsworth. Ohio (Ohio Brass Co.) CAMPOS. F. Torres Fabrics Xacional de Vidrio. C. A. Box 1049. Caracas, Venezuela CANADIAN CERAMIC SOCIETY (Miss L. C. Keith), 49 Turner Rd. Toronto 19, Ont.. Canada CANFIELD, J. J. (EF) 2909 Orlando Dr.. Middletown 29. Ohio (Armco Steel Corp.) CANNING, Robert <G) 202 Fox Chapel Rd.. Pittsburgh 38, Pa. (Pittsburgh Plate Glass Co.) CANNON: John D. 21flf"**Hig;xview Rd., S. W. Atlanta 11. Ga. CAPEX, Raymond G. 2646 S. Clarence Ave., Berwyn, 111. CAPELLMAX. John J. (R) 1113 Highland St., Tarentum 1, Pa. (Pittsburgh Plate Glass Co.) CAPPS, Webster (G) National Bureau of Standards Washington 25, D. C. CARBORUNDUM CO. (Paul X. Giilon), Library 1-2 Xiagara Falls, N. Y. CARDER, Frederick (Honorary, GF) Corning Glass Works Vycor Div., Corning, N. V. CAREY. J. Sbeicon (D) Dept, of Design, University of Kansas Lawrence. Ivans. CARINI, George F. 623 S. Seminole. Okmulgee, Okla. CARL. John E. (GI) Corning Glass Works. Greenville. Ohio CARLSON, Joseph A. (S) 50 Hawthorne St. San Francisco 5, Caiif. (Kraftiie Ca.) CARLSON. Robert H. (W) Universal-Rundle Corp. Box 960. New Castle, Pa. CARLSON. William G. (RI) 175 Glenheid Dr., Pittsburgh 35, ?a. (Westinghouse Electric Corp.) CARLYLE. Edward C. (S) Box 123, 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. Gneitinati 2. Ohio CAROTHERS. R. B. (MF) H. G Spinks Clay Co., Inc. Box 829, Paris. Tenn. CAROTHERS, Richard B.. Jr. (M) H. C. Spinks Gay Co., Inc. Box 829. Paris. Tenn. CAROTHERS. T. E. (M) Gladding, McBean & Co. 2901 Us Feliz BWd. Los Angeles 39, Calif. Roster 17 ARPEXTER. F. Scott. Jr. I.M, White Pigments Division Godfrey L. Cabot, Inc., 77 Frankiin S:. Boston 10. Mass. \R?ENTER. R. M. (Si Keisey Ferguson Brick Co. East ir.dsor Hill. Conn. ARPENTER. Woodro'.v (E) Barrows Porcelain Enatnei Corp. Lar.gdon Rd. St Penn. R. R. Cincinnati 13. Ohio ARR-LOWREY GLASS CO. (Normar. R. 3eck) Baltimore 3, Mu. \RROLL. Jerry W. (W) R. R. 1.. Cedar Falls. Iow-a (American Radiator & Standard Sanitary Corp.) \RROLL, William F. (W) 3499 McNally Ave.. Altadena. Calif. (Florence Ceramics Co.) \RRUTHERS. John L. (SFI) Lord Hail. Ohio State University Columbus 10, Ohio \RSON. Lee R. (S) Box 303. Madison, X. C. (Pine Hall Brick St Pipe Co.) YRTER. D. R. (M) Eagle-Picher Co. American Bldg., Cincinnati 1, Ohio VRTER, F. 3. (WI) Tiffin 12, Ohio (American-Standard Corp.) VRTER, George J. 10202 20th N.E.. Seattle 53. Wash. VRTER, Gerard T. (W) Oakland St.. R.R. 1, Box 1I-A Mattapoisett. Mass. (Cornell-Dubilier Electric Curp.j VRTER, Herbert D. (WFi) 3331 Dorchester Rd. Shaker Heights 20, Ohio (Harshaw Chemical Co.) iRTER. R. (B) General Electric Co., Research Lab. Schenectady, N. Y. vRTWRIGHT. S. V. (SI) 122* Victoria Ave.. Corona. Calif. (Jordan Tile Mfg. Co.) iRVLIN. George M.. Jr. (R) Koppers Co.. Inc.. Hoppers Bldg. Pittsburgh 19. Pa. .SAMO. Charles C. (Gj Syivania Electric Products. Inc. Emporium, Pa. tSE MANUFACTURING CORP. (Willard G. Young) 1000 W. Pine St.. Rohinson. III. .SHIN. William M. ( B> 151 Mann Ave.. Cohoes. X. Y. (General Electric Co.) SPER. Richard L. Box 787. Alfred, N. Y. tSSADY, Bert L. (R) 5115 S. Lewis Ave., Tulsa 15. Okla. STERLINE. Dale R. (MJ) 3897 W. 33rd Sc.. Cleveland 9, Ohio (Ferro Corp.) iTON. Milton W. (RF) 22490 Nevada Ave., East Detroit, Mich. (Ceramic Div.. Champion Spark Plug Co.) VAXAUCH. Clifford E.. Jr. 13J2 Porter St.. Philadelphia 48. Pa. .VANAUGH. D. J. (WI) 822 32nd St.. Parkersburg, W. Va. (United States Ceramic Tile Co.) YFORD, James M. (El) 1317 Ridge Ave., Steubenville. Ohio (Toronto Paperboard Co.) .CIL. Go wan 1-- (W) Lone Star Ceramics Co. Box 14215. Dallas 34. Texas ICIL. Paul S. (E) Service Porcelain Enamel. Inc. Brill & Christie Sts.. Newark 5, N. J. aTXAL SILICA CO. (E. C. Sawyer) 806 Market St., Zanesville. Ohio 1L. 30. No. 10 (1037) CERAMIC ASSOCIATION, JAPAN i V'ij()>' R>nkur.i; N<>. *. bniba Xiahikuiiosakura Ca\\3-(.ho. M:r.a:o-Xu. Tukvo. (span CERAMIC COLOR 4 CHEMICAL MFG. CO. (W. F. Wennir.gJ Box 297. New Brighton, Pa. CERAMIQUE MAASTRICHT. N. V. (Comte be Mcrus d'Argenteuil t I'osibiis 1'Jj. Maa-iricht. Netherlands CERMAK. Frank iVVF) 1542 Union St.. Schenectady 9, N. Y. CERil.VK. George F. 1 B> Berkshire Chemicals. Inc. 4500 Euclid A\c.. Cle-.ciand. Ohio CERXY. Joseph J. i E'i 5226-23 W. 25th St. Chicago 50 (Cicero) III. (Resistors. Inc.) CERULLI. Nichoias F. 73 Forest Ave., Caldwell. N. J. CHADEYRON. A. A. G. Cleveland Magnesite 4 Refractory Co. Ltd. Normanby Brickworks, Normanby Middlesbrough. York. England CHAI. Ki-Kon Frazar 4 Co.. Inc. 50 Church St.. New York 7. X. Y. CHAMBERLAIN. James M. W. (Bi U. S. Stoneware Co.. Box 3 50 Akron 9, Ohio CHAMBERS. Fred (Ml National Gypsum Co.. Lttckey, Ohio CHAMBERS. Gordon H. (M) Foote Mineral Co.. IS W. Cheiten Ave. Philadelphia 44. ?a. CHAMPION SPARK PLUG CO. CERAMIC DIV. (James S. Owens) 8525 Butler Ave., Detroit 11. Mich. CHANTLER. L. VV. (R) Standard Lime 4 Cement Cj. Millville, W. Va. CHAPMAN. Alan T. 2053 Jane Ave.. Columbus 19. Ohio CHAPMAN. G. Marsh (W) Harshaw Chemical Co. 6265 Wiene Rd.. Cincinnati 13. Ohio CHAR BONNIER. William P. (RD Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. CHAR LAX D. Tei L. iRI) 316 Elias Dr.. Pittsburgh 35. Pa. (Westingnouse Electric Corp.) CHARLES. Richard J. (G) General Electric Co. Research Lnh.. 3ox 1088 Schenectady. X. 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. (3) Electro Metallurgical Co. Metals Research Labs. Box 580. Niagara Falls. N. 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. dark) 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. Joim K. (Fi Uniter: S::cl Companies Ltd. Research 4 Deveicpment Depi. `Swincm Laboratories." Maorgate Rotherham. Yorks. England CHICAGO POTTERY CC. (J. S. Clifford) 1920 Clybourn Ave. Chicago '.a. 111. CHICAGO VITREOUS CORP. (William Hogcnson) 1425 S. 55:h Cour Cicero 50. III. CHILCOTc.. Joseph H. (R) 1907 16th St.. N., Arlington 1, Va. (Bureau of Ships, Navy Depi.) CHILD. Henry C. _ \Vm. Jessop & Sons Ltd. Research Labs.. Whiston Grange Rotherham. Yorks. England CHILD, James L,, Jr. (S) Hancock 3rick & Tile Co., Box 450 Findlay. Ohio CHILDS. Clayton G. (B) 2257 X. 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.. Wellsville, N. Y. CHIN, Tie-Ching Argilas e Minerios Industrials "Aremina" S. A. Rau Barao de Jaguara 1024-1030 Sao Paulo, Brazil CHIXG, Tung Rey (J) 31 Soares Ave., Grd. Fir. Kowloon. Hong Kong (I-Fer.g Enamelling Co. (H.K.). Ltd.) CHIOCHETTI. Vincent E. J. <G) 43 Monrce St.. Honeoye Falls. N. Y. I Bausch 4 Lomb Optical Co.) CHISHOLM. BOYD & WHITE CO. (Robert A. Ebersole) 610 W. 57th St. Chicago 2!, 111. CHORMANX. 0. I. (E) 195 Gregory Hill Rd. Rochester 20. N. Y. CHOTHIA. Boman S. Wadia Bldg., 137 Queen's Rd. Bombay, India (British Hanford Fairmont Ltd.) CHRISTENSEN. Cart J. (B) University of Utah Sait Lake City 1, Utah CHRISTENSEN. Chr. Royal Copenhagen Parceiain Manufactory & The Faience Manufactory Alumtr.ia Smailegade 45. Copenhagen F.. Denmark CHRISTMAN. Brian 3. (W) 48 Norris Ave.. Metuchen, N. J. (Rheem Manufacturing Co.) CHRISTMAN, C. E. (E) Federal Enameling it.Stamping Co. Pittsburgh. Pa. CHRISTMAN. H. M. (RI) 1514 Ilth St.. N.E.. Massiilon, Ohio (Massillon Refractories Co.) CHRISTOPHER. A. 3. (S) Chambers Bros. Co.. 32 4 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. Fener) Hamburgh 51. Apartado Postal 71 Bis Mexico. D. F. CICHOWSKI. V. J. (E) Fusite Corp., 6000 Femvietv Ave. Cincinnati 13. Ohio CINCINNATI MILLING PRODUCTS DIV.. CINCINNATI MILLING MACHINE CO. (Philip O. Geier. Jr.) 4701 Marburg Ave., Cincinnati 9. Ohio Roster 19 CLATTER. Dean T Tabor, lywa CLARE. Robert L. 1 Sri) 212 Rector S:.. Perth AmLoy. N. J. t La relief Corp. ot New Jersey} CLARK. Alee V/. 3ea:son. Clark 1* Co . Ltd. Rotherham. York. England CLARK. Arthur R. (B) Sox 352, Far Hills. N. J. i Foxiyn Laboratories,! CLARK. C. 3urton (3) 1T66 Nteadcwcresi Dr. Pittsburgh 23, Pa. (Harbison*Walker Refractories Co.) CL.ARrL Daniel J. (S) Vitro Mfg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. CLARK, Horace N. (R) Refractory it Insulation Corp. 120 Wall St.. New York 3. N. Y. CLARK, James L. (S) 150 Yates St.. Denver. Colo. (Robinson Brick it Tile Co.) CLARK. John D. (XFI> Foote Mineral Co.. 13 W. Cheltcn Ave. Philadelphia 44. Pa. CLARK, Paul M. (S) Chattahoochee Brick Co. Chattahoochee. Ga. CLARK, raui W. Brown-Firth Research Labs. Princess St.. Sheffield 4, England CLARK. Richard E. (MI) 4104 Dunhaven Rd., Dallas. Texas (R. T. Vanderbilt Co.. Inc.) CLARK. Thaddeus J. E. (W) II.} Elmore Ave.. Trenton 9. J. i Star Porcelain Co.) CLARK. W. D.. Jr. (R) A. P. Green Fire Brick Co. Mexico. Mo. CLARKE. Ford K. (G) Philco Corp.. Lansdale Tuhe C*>. Div. Church Rd.. Lansdale. Pa. CLAUS, Karl M. (W) Mosaic Tile Co., Pershing Rd. Zanesville. Ohio CLAY. Wilfred <E) Kaiser Metal Products, RadclirFe St. Bristol. Pa. CLAYBURN-HARBISON LTD. < R. M. Hungertord'i 350 W. Hastings St. Vancouver 9. 3. C.. Canada CLAYCRAFT CO. (Phillip W. TerFt) Box 366. Coiumous 16. Ohio CLAYPOOLE. Stewart A. (G*) R.R. 2, Painted Pest. N\ Y. fComing Glass Works) CLEEK. Given W. (G> National Bureau ot Standards Washington 25, D. C. CLEMENS. August, Jr. (Ml 205 E. Girtings Ave., Baltimore 12, Md. (Arcrods Corp.) CLEMENS. Eugene C. fSFI) Canoeiron 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) J U150 East BWd., Cleveland 6. Ohio jCLEVELAND. Theodore K. CG^ Philadelphia Quartz Co. of California Seventh <Sc Grayson Sts. Berkeley 10. Calif. ^VENDER. Thomas R. Massachusetts Institute of Tech. Rm. 20-C-001. Cambridge, Mass. 3.EVER. William R. (G) 401 N. Elm St.. Lincoln. III. (Pittsburgh Plate Glass Co.) XEVERLY. Robert B. (SI) 133 Grant St.. Dover. Ohio (Universal Sewer Pipe Corp.) rOL. 3fi, No. 10 (19571 CLEWS, Francis H. British Ceramic Research Assn. Mellor Laboratories, Shelton Stoke-on-Trent. England CLIFFORD. J. 5. (\V) Chicago Pottery Co. 1920 Civbaurn Ave.. Chicago la 111. CLIN E. Carl F. > 3 : Carhurundum lYNiagara Fails. N Y. CLINE. 1. R. (S) Western 3rick Co.. Danville. III. CLINE. Robert W. i\V[i 577 Main St.. East .Aurora. N. Y. t Syracuse China Corp.) CLIPPER DIAMOND TOOL CO.. INC. (Joseph Klippcri 545 Hudson St. New York 14, N. Y. CLOSE. Paul (G) Owens-Illinois Box I03S--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, Tenn. CMOLIK, Clarence G. (3) 4403 Sheraton Dr.. Parma 29. Ohio (Clevite Research Center) COATES. Bill (SF) Coates Co., Box 955, 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 17.14. Atlanta 1. Ga. COEN, Bernard (W) Woodhridge Sanitary Pottery Corp. 500 Green St.. Wooabridge. N. J. COFFEEN. William W. (EFI) 1024 Boulevard, Wesrheid. N. J. (Sletal & Thermit Corp.) COFFIN. Leon B. i.S) Andover, N. Y. (Alfred University) COGEN. Saul (S) Davidson Brick Co.. 4701 Floral Dr. Los Angeles 22. Caiif. COGHILL. H. T. (X) 2023 Ccllingswood Rd. Columbus 21. Ohio (Refractories Div., Carborundum Co.) COHEN, Aaron (S) Box 405. Willarnina. Ore. (Wiilamina 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. (Bendix Aviation Corp.) COLE. David L. Campmeeting Rd.. Topsneld. Mass. COLE, G. Percy (G) Dominion Glass Co.. Ltd. Box 190. Montreal. Quc.. Canada COLE. Harold R. (R) National Carbon Co. Town St., Fostoria. Ohio COLE, Sandford S. (BFI) Titanium Division, National Lead Co. Research Dept.. Box 58 South Amboy, N. J. COLE. Sandford S.. Jr. (WI) Power Tnbe Div., Raytheon Mfg. Co. Waltham 54, Mass. COLEMAN. Bruce G. J & AP Sect: L:b. 3ox 2)9, Dunedin. Nc'.v Zealand COLEMAN. Ca.-uthers A. (S'> Big Run Ccai & Clay Co. 155 N. Limestone St.. Lexington, Xv. COLEMAN. J. C. (G. J746 Mapleway Dr. .oledo 14, Ch'.u (Kimble Glass Co.) COLEMAN. Robert L. (Si) 29651 Greenwood. Olympia Ficids. ill. i Chicago 3rick Co.) COLEMAN. Thomas C. 3ox foot. College Sta., Raleigh. N C. COLLINS. Frank ?. (G) Liberty Glass Co. Coilir.s Bldg., Sapulpa. Gkla. COLLINS, G. K. (G) Pittsburgh Plate Glass Co.. 3ox 750 Henryetta, Okla. COLLINS. Paul F. (WI) . Anstenal. Inc. 7001 5. Chicago Ave.. Chicago 57. ill. COLLINS. Wiiliam G. < E11 Johns-Manviile Corp-. Waukegan. 111. COLONIAL INSULATOR CO. t R. W. Hemphill. Jr.) 945 Grant St.. Akron II. Ohio COLOSKY. Beniamin P. (RJ) 522 Ridgdale Rd.. Louis viile. Kv. (Corhart Retractories Co.) COLUMBIA FIRE 3RICK CO. (M. L. Hamaker) 612 First National Bank 3!cg. Canton 2, Ohio COLUMBIA-SOUTHERN CHEMICAL CORP. (R. W. Miller) One Gateway Center. Pittsburgh 22. Pa. COMBUSTION ENGINEERING, INC. RAYMOND DIV.. (A. R. Jenny) 1515 N. 3ranch St.. Chicago 22. III. COMEFORO. J. E. (W) Frenchtown Porcelain Co. Frenchtowrt, N. J. COMER. Richard L. (W) 6161 Sprir.gdaie 31vd. Grand 31anc. Mich. (A C Spark Plug Div. General Motors Corp.) COMMERCIAL DECAL. INC (Alfred Duhrssen) Box 759 East Liverpool. Ohio COMMERCIALS RES. INC. (Albert R. Eckei) Clover. 3 C. COMMONS. Charles K.. Jr. (WFI) 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. Simor.sen) Caixa Postal 5.008, Sao Paulo. Brazil CONARD. John B. (S) 600 Hawthorne Lane. Mansneid. Ohio (Richland Shaie Brick Co.) CONDON. Edward U. (G) 6604 Waterman Ave.. St. Louis 5. Mo. (Consultant) CONE. Carroll (G) 1587 Virginia Ave.. Columbus 12. Ohio (E- I. du Pont de Nemours Jr Co.) CONN. Willi' M. Max-Planck-Instif.it I. Silikattorschnung, Neunerstr. 2 Wuerzburg, Western Germany CONNELL. George A. (B) Pacific Coast Borax Co.. Box 9123 Station S, Los Angela 5, Calif. CONNELLY. Daniel S. (R) 2801 N. Park Blvd. Cleveland Heights 13. Ohio (Ohio Crankshaft Co.) CONNOR. Joseph H. 12 Maple St.. Homell. N. Y. CONOVER, Ray C. (RI) Gladding, McBean it Co. 1006 Alcalde Way, Glendale 7. Caiif. Roster 21 COX RAD. Charles E.. Jr. (M) 55-5 Toledo A\e.. S. E. Charleston 4, W. Va. ( Furnace En^ir.eeriuir Cur(>.; CONRAD. Keith (G) O'ver.s-Illinois Box 1019, Oakland 4, Calif. CONROE. Barden A. (G) 93 Gorton St.. Corning, N. Y. (Comintf Glass Works) CONSOLIDATED FELDSPAR DEPT. INTERNATIONAL MINERALS & CHEMICAL CORP. (William K. Burriss) 20 N. Wacker Dr., Chicago 6, III. CONSOLIDATED GLASS WORKS, LTD. (I. Donen) 3ox 362 Gcrmiston. Transvaal. South Africa CONSUMERS GLASS CO.. LTD. (John N. Jordan) Box 436, Station B Montreal. Que.. Canada CONTARDI. William A. (WI) 206 Highland A.ve.. lletuchen, N. J. (Automatic Mfg. Co.) CONTINENTAL CAN CO.. INC. HAZEL-ATLAS GLASS DIV. ( Francis C. Flint) lith & facob 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) 155S Beardsley Ave., Muskegon, Mich. (Norge Div., Borg-Warner Corp.) COOK. Louis S. 4035 Highland Dr. Salt Lake City 7, Utah COOK. Maurice D. 4071 Highland Dr. Salt Lake Citv. Utah COOK. Ralph L. (EFI) 204 Ceramics Bldg. Universitv of Illinois. Urbana, III. COOK. W. Howard t R) Box 1J1. Xnrris. Tenn. (Oak Ridge National Lab.) COCKE. Charles C. (G) 2358 S. 109th St.. Toledo 11. Ohio (Owens-Illinois) COOKE. David C. (WT) 404 Strawbrtrige Arc.. Westmont. X. J. (Universal-Rumile 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. (\V) 1329 E. Vernon Rd. Philadelphia 50. Pa. (Signal Corps Supply Agency) 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.) COO PER STEIN. Raymond (B) 8793 Eldora Dr.. Cincinnati 36, Ohio (General Electric Co.) COORS PORCELAIN CO. (H. W. Ryland) 600 Ninth St. Golden. Colo. COPE, William E. (M) Barclay Machine, Inc. Box 146. Sebring, Ohio COPELAND. R. Spencer C. W. T. Copeland & Sons Ltd. Spode Works Stoke-on-Trent. England Vol. 3fi, No. 10 (1957) CORAH. Donald E. Box 226, Alfred. N. V. CORBAN. Wilbur H. (W; 3193 Dresden Rd.. Zanesville. Ohio (Ceramic Suppiv Co.'* COR3MAN. Mitchell (S> New Jersey Shale Brick Tile Corp. Box 249, Somerville. N. 1. CORBMAN, Morriss (S) New Jersey Shale 3rick Tile Corp. Box 2-19. Somerville. N\ J. COKDES. John E. (MI) 53 J J Humboidt Ave.. S. Minneapolis 19, Minn. (Lithium Corp. of America. Inc.") CORHART REFRACTORIES CO.. INC. i Frederick 5. Thompson* 9-40 Commonwealth 31dg. Louisville 2. Kv. CORNING GLASS WORKS (Howard R. Lillie) Coming. N. Y. CORNISH, Frank L. (G) Coming Glass Works, Charleroi, ?a. CORNWELL. George L. (3) 171 Eiseman, Xenmore 17. X. Y. (Exolon Co.) CORRADA. Marco A. (C) Puerto Rico Glass Corp. Box 4272. San Juan, Puerto Rico CORSON. Robert t GJ) 35 State St.. Senecn Falls. N. Y. (Sylvania Electric Products. Inc.) CORWIN. Rudolph E. (3) Applied Physics Laboratory University of Washington 1013 E. 40th St., Seattle I. Wash. COSTELLO. R. E. i.W) Zeller Corp. Fort Wayne Rd., Denar.ce, Ohio COTTON. Nigel Elijah Cotton Lrc. Nelson Pottery, Hanley Stoke-on-Trent, Stafford, England COUCH. Albert H. (RFI) L:bbcy-Owens-rord Glass Cj. 1701 E. 3roadway, Toledo 5. Ohio COUGHAXOUR. L. W. (3) *094 Ben Lomond Dr., Palo A.lto, Caiif. (General Electric Microwave Lab.) COULTER. William G. (M) -*324 Meacowiane N. W., Canton, Ohio (Pemco Corp.) COUNTS. William E. (B) 1J22 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. III. (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.. 1235 3oston 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.) COWAN, Robert E. (BJ) 3806 Gold St.. Apt. 12 Los Alamos. N. 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. Sl Marys, Pa. rt'WI.HS, R..dur:ck J B) Waiw ufih Gu.. mijU E. Fir.-t d:. South 3o>:or. 27. COWLING. Kenneth W. 79 Norwood RJ. Shemeid 5, England (Thos. Marshall & Cz . L:d. COX. John E. (E) Mellon I r.Mirjtc *400 Fifth A-.e.. P:t:*burgh ij. ?a. i.'UX, j*ihn j. 4515 21s: Ave., X.E.. .>rn:T*.e '.Vash. COX. Paul E. (SF) 520 Canal 5t.. Baton Rouge 2. La. (Louisiana Geological Sur\eyi COX. Samuel F. (G) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. COX, Shaun M. J. A. Jobling Sc Co., Ltd. Wear Glass Works Sunderland, Durham. England COY. John Joel (E) 1639 Victoria Park Ave.. Apt. 410 Scarborough. Ont., Canada (Frtgidaire Products of Canada. Ltd.) COZAD. John O. (G) Demuth Glass Works. Inc. Box 625. Parkersburg. W. Ya. CRAFT, R. S. <R) Findlay Cay Products Co. Washington. ?n. CRAIG, Brace G. (E) 4520 N. I43:h. Milwaukee. Wise. (A. O. Smith Corp.) CRAIG. David M.. Jr. <G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22. Pa. CRAIG. James W. (RF) Canadian Refractories, Ltd. 540 Canada Cement Bldg. Montreal 2, Que.. Canada CRAIG, John D.. Jr. (W) 14 Emerald Ln.. Levittown. ?a. (Vitro Mfg. Co.J CRAIN. Harold H.. Jr. iMJ) 221 Skvpor: Dr.. Dravo'burg. Pa. (WeMinghouse Electric Corp.'; CRAMER. A.loiph 3.. Jr. * WA Penn.sylvanin Pulverizing Co. Chrvder Bldg.. New York V. Y. CRAMER. W. E. (WFTi Industrial Ceramic Products. Inc. 965 W. Fifth Ave.. Columbus 3. Ohio CRANDALL. Eugene R. iRIi 25H Gulf St.. Miifnrd. Conn. (American Refractories & Crucible Co.) CRANDALL. James R. .'F.FI') 4514 Chestnut St., Betheada 14. Md. (National Bureau of Standards) CRANDALL. William B. (RI) Box 707. Alfred. N. Y. (State University of New York College of Ceramics, at Alfred Univ.) CRANDON. A. S. (G> American Window Glass Co. 20th Floor. Farmers Bank Bldg. Pittsburgh 22. Pa. CRANE CO.. CHATTANOOGA DP/. (W. M. Hamilton) 33rd and Alton Park 31vd. Chattanooga l. Tenn. CRANE-PACIFIC CO. (Sidney A. Peer) 330 W. Citrus St., Colton. Calif. CRAVEN. Henry E. (R) Davison Chemical Co. Div. of W. R. Grace & Co.. Box 385 Lake Charles. La. CRAWFORD. George E. (WFI) 221 Sumner Ave., New Castle. Pa. (Universal-Rundle Corp.) CRAWFORD, J. C. Jr. (R) Johns-Manvtlle Sales Corp. 22 E. 40th St.. New York 16, N. Y. CRAWFORD, J. L. (RFI) 3854 Foothill Rd. Santa Barbara, Calif. Roster 23 CRESON, Walter F. (Rl Babcock 4 Wiicox Co. 10-40 National City Bank Bldg. Cleveland I*. Ohio CKKSS. Wilii.iin C. tRl) Carolina C-ramics, Inc. R.R. 3, Columbia, S. C. CRES5Y. Morton i.G) Emhart Manufacturing Co. 33J Homestead Ave. Hartford 2. Conn. CRIDER. Paul H. i E i PCI West 51 >t it, Erie. l*a. Erie Enameling Co.) CRISPING, Joseph C. (R) Corning Glass Works Corning. N. Y. S. A- CRISTALERIAS DEL URUGUAY (Francisco J. Gercar) Comercio 1491 Montevideo. Uruguay CROCKETT. William E. (X) 1213 N. Arlington Ave. Indianapolis. Ind. (Sales Engineer) CRONINGER, George J. (M) A. ). Wahl, Inc., 3 Central Ave. Brocton. N. Y. CROOK. Charles Edmund iU'j Los Angeles Chemical Co. 4545 Ardine St.. South Gate, Calif. CROOKSTOX, James A. (RI> 1224 E. Jackson St.. Mexico. Mo. (A. ?. Green Fire 3rick Co.) CKOOM. Henry C. (SJ1) 1112 S. Tarhoro 5t., Wiison. N. C. ( Lr. S. Armv) CROSBY. Donald P. (Rl> Harbison-Walker Refractories Co. Fulton, Mo. CROSKEY. Carl D. (W) 203 RoIIingdale Rd. Catonsville 23, Md. (Insulator Dept. General Electric Co.) CKwSI.IX. John D. 7401 N. Lamar. Austin, Texn> CR( >s:s. A. H. 8. j & J Dyson Ltd.. Grins W<*rks Stnnningtf.n. Nr. ihemeld, r.nglninl CROSSAN. W. A. (S) Metropolitan Brick. Inc. 1017 Renkert Bldg., Canton 2. Ohio CROSSLEY MACHINE CO. 301 Monmouth $t.. Trenton 9. N. J. CROSSLEY. Robert H. ..W) St. Joseph Lead Co. 250 Park Ave.. New York 17. X. Y. CROUCH. Lester A. Georgia institute of Technology Box 270. Atlanta. Ga. CROUCH. Richard L. (M) Funkhuu&er Co. Bx J12. Blue Ridge Summit. Pa. CROWE. Samuel H.. Jr. (C) 416 Mississippi Ave.. Crystal City. M. (Pittsburgh Plate Giass Co.) CROWLEY. Francis J. (M) Crowley-Tliompsntt Chemical C. Ft. E. Ninth Sc Lakefront Cleveland 14. Ohio CROWLEY. Henry L. (B) 365 Forest Rd.. South Orange. N. J. (Crowley Div.. Aerovox Corp.) CROWLEY. Michael S. (I) Pennsylvania State University Dept, of Geophysics Sc Geochemistry 223 Mineral Sci. Bldg. University Park. Pa. CKUIKSHANK. C. L. (X) Great Lakes Foundry Sand Co. 720 United Artists Bldg. Detroit 26. Mich. CULLER. Vaughn E. (C.) Coming Glass Works. Corning. X. Y. CULI.EY. Paul Pole Bridge Rd.. Genc^en, X. Y. CULVER. Richard L. Box 18*>. Alfred, N. Y. Vol. :m. No. 10 (l!).">7) CUMMINGS. J. M. ; M British Columbia Crir.eut Co., Ltd. 3. C. Cement BMg. Victoria, 3. C.. Canada CUMMINS, Arthur 2. ( S Morning Glory Rd.. Bound Brook, N. j. {Jobns-Manviile Ccrp.) CUMMINS. Robert K. (C} General Electric Co. 1153 E I52:ui Cleveland 19. Ohio CUNLIFFE, J. A. (Si 266 Seventh Sr. Medicine Hat, Alta . Canada (Medicine Hat Brick 4 Tiie Co. Ltd.} CUNNINGHAM, Eugene E. tG) 2J9 Greenfield Ave.. Newark. Ohio ( Owen*-Crning Fibergln* Corp.) CUNNINGHAM. James A. IS) Adams Clay Products Co. Box 34. Martinsville, hut. CUNNINGHAM. Robert J. (G) Clark Ave.. R.R. 5. Newark. Ohio' (Owens-Coming Fibergias Corp.) CLTIDRO. Vincent N\ (W) 2204 Kirchorf Rd. Arlington Heights. III. i Radio Materials Corp.) CURCIO. A'.ithmiv I.. iWI) 21 Chnrch Sc., Bound Bnmk. N. J, (Advanced Vacuum Products. Inc.) CURRAN. EDWARD ENGINEERING. LTD. (Terence P. Ne.tlon), Cardin. Wales CURRAN. Martin T. Box 562. Alfred. N. Y. CURRAN. Robert (RI) 75-08 35th Ave. Jackson Heights 72. N. Y. (Plibrico Co.) CURRIE. Thomas E. fR) Box 53. Berwyn. P.v i Foote Mineral ('*.) CURRY. William J . Jr. (R> Hiram Swank's Sons. Bv Johnstown. ?a. CURTIS. Carl F.. (RFU R. R. 3, Kingston. Term, i Union Carbine Nuclear Corp.) CURTIS. Miles S. (H) 301 Brunswick Rc.. Louisville 7, Ky. ( Ferro Corp.) CURTIS. William H.. Jr. (EJ' Magnolia Trailer 0:. JfiOO Dean'* Bridge Rd.. Auffii'ta. < In. tU. S. Arrr.v ' CURTS. R. M. iG) American Potash 4 Chemical Corp. 99 Park Ave., New York. N. Y. CUSTCX. Charles S. (C) Pittsburgh Plate Glass Co. Wks. 4, Ford City. ?a. CUTHILL. John R. (E) Enameied Metals Section National Bureau of Standards Washington 25. D. C. CUTLER. Ivan B- (B) 220 Mines Bldg.. L'niversity of Utait Salt Lake City 12. Utah CZARNECKT. Kamil B. 29. Whitehall London S. W. 1. England fAglite. Ltd.) CZECHOSLOVAK SCIENTIFIC- TECHNICAL SOCIETY FOR THE SILICATE INDUSTRY I R. Barta) Priknpy 29 Prague 1. Czechoslovakia D D'ADRIAN, Vincent L. D. (G) Mississippi Valley Research Lab.. Inc. 901 S. 18th St.. St. Louis 3, Mo. DAGER. Probert W. (MFI) 5628 Greenbush. Van Nuys, Calif. (H. C. Spinks Clay Co.) DAHLSTROM. Roy (X) National Lead Co. Ill Broadway. New York 6. N. Y. U.'.LEY. Frank E. vM, Giniirey L. Cabot. Inc. 4t> 3ayard St.. New Brunswick. X. ]. DALTON. Robert H. iCi 234 Deievan Ave., Corning, N. Y (Corning Glass Works DAMERON. Joseph J. (Si Coates Co.. 3ox 335. Austin, Texas Danielson, r. r. (Sfg 129 Richmond Terrace. Rahway, N. J. (Metal 4 Thermit Corp.i DANKS, William H. (G) 216 Mississippi Ave.. Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY. George M. (M) 61 Washington Ave., Westport. Conn. (Dorr-Oliver, Inc.) DARNELL, Harmon C. (S) Murray Tile Co.. Inc.. Cloverport, Ky. DARRAH. W. A. (E) 901 N. Oak Park B'vd.. Oak Park, III. (Continental Industrial Engineers, Inc.) DAS GUPTA. A. K. (W) Allen-Braulcy Co. 136 W. Greenfield .Ave. Milwaukee 4, Wise. DAUMKE. Arthur H. (W) 17 W. 170 Hillside Ln., Hinsdale. Id. (Harshaw Chemical Cc.) 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 Fails, Ont., Canada DAVEY & MOORE LTD. t K. A. Murdoch) Lockheld Ave. Brinisdown. Enfield Miildle>cx. England DAVIDSON. K. O. -MTrinity Ceramic Supply. Inc. 100 Howell Sr.. Dallas. Texas DAVIDSON, Robert \V. (R) North .American Retractories Co. Curwensviile. Pa. DAVIES. Chester A. AV: ) Park Lake Ave., Titusvlle. N. J. (American Radiator 4 Standard Sanitary Corp.) DAVIES. Edward C*. (G) Dominion Glass Co.. Ltd. Wailaceburg, Ont.. Canada D.-\V l La. Lni> r. i !>I i Carborundum Co.. Gioh.ir Div. 2626 Malt Ave., Los Angeles 22. Laiii. DAVIES. Ray. Jr. r R) General Refractories Co. 6Kl Market St. San FrancGco 5. Calif. DAVIES. Thomas H. (G) Mellon Institute, 4400 Fifth Ave Pittsburgh 13. Pa. DAVILA. A. E. Fernandez Londres 1122 I.ongchamps--FXCR. Argentina (Ferro Enamel S. A.) DAVIS, Earl K. (G) Bausch Sc Lomb Optical Co Rochester. N. Y. DAVIS FIRE BRICK CO. Oak Hill. Ohio DAVIS. Harry E. (WFI) Universal Potteries, Inr. Cambridge, Ohio DAVIS. H. M. (E) Pennsylvania State University Mineral Industries Bldg. University Park. Pa. DAVIS. James IC (G) M4 High Rd.. Coming. N. Y. (Corning Glass Works) DAVIS. James T. Box 5332, Georgia Tech Sta. Atlanta. Ga. Roster 2.1 DAVIS. John A.. Sr. I W) Sentry Sanitary Corp. Box 427. Mar.ningion, \V. Va. DAVIS. M. i'cuI. Jr. .ID'1 Chamberlain Sc.. Raieigh. N*. C. DAVIS. V B. f M i 77 Metcalfe St.. Rm. SO? Ottawa 4. One., Canada ( Consulting Engineer^ DAVIS. Richard P. 2113 F.i'ghth ,\vc.. Altoona. Pa. DAVIS. San H.. Jr. (W) Kohler C.. Spartanburg. S. C. DAVIS. Waiter M. (R) Aluminum Co. of America 1515 Fidelity Philadelphia Trust Bldg. Philadelphia 9, Pa. DAY, Arthur L. (Honorary, G) 9113 Old Georgetown Rd. Bethesda 14, Md. DAY. Britton T. (R) American Fire Clay 2c Products Co. Box 15/, Canrield, Ohio DAY. Charles M. (R) Valley Dolomite Corp. Room 902. 91i Olive St. St. Louis 1. Mo. DAY. Delbert E. 502 W. Tenth Sc.. Rolla. Mo. DAY, Frank. Jr. (Mi Coming Glass Works, Coming, N. Y. DAY. Jack F. (WI) 2C02 Woodland A.-.e.. X. W. Canton. Ohio (United States Ceramic Tile Co.) DAY, Ralph K. (GFI) Libbey-Owens-Ford Glass Co. 1701 E. Broadway. Toledo 5. Ohio DAY. Robert B. (SI) IS Lynnwnml Dr.. R. R. .1. Morris, III. (Tuthil! Building Materials Co.) DEADERICK. James W. (B) 1011 h'orvell Dr. Signal Mountain. Term. (American Lava Corp.) DEADWYLER. Earnest W. (R!) 2599 Glenrrawr Ave. Columbus 2. Ohio (United States Armv) DEAN. Estus R. (3J) Box 41, Ossining. N. Y. (Internationai Business Machines Corp.) DEAN, Robert t C-> Sinclair Cias Co.. CerHo. W. Va. DEAR. Paul S. <'BFT) Virginia Polytechnic Institute Box 205. Blacksburg. Va. DEARBORN GLASS CO. (Joseph Falls). 6600 S. Harlem Bedford Park, ?. O. Argo. III. DE 3ECK. Hubert O. CM) 1700 Sunset Blvd.. Apt. 22 Houston 5. Texas (Baroid Div., National Lead Cn.) DEBENKAM. W. S. (RFI) United States Steel Corp. 525 William Pern PI. Pittsburgh 50. 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., Williamstown. Mass. (Sprague Electric Corp.) DE COURSEY. Donald T. (E) Redfield Village, Apt. 19A-3 Metuchen, X. J. (E. I. du Pont de Nemours 4 Co.) DEETH, H. R. (M) American Nepheline Ltd. 25 King St. W., Rm. 2530 Toronto, Ont., Canada DEIGNAN, Charles J. (SI) 305 Burkey Ave., Reynoldsburg, Ohio (Oaycratt Co.) fOL. 36, No. 10 (1967) DIC L.-\ P.OY, Hans i W) Delco Radio Div. Generai Motors Corp. Kokomo, Ind. DELAWARE CLAY CO. Homer W. Wilson) Box 553 Delaware. Ohio de LEEU'.V, Peter Eisenberg Co.. Inc. Central Post Once Box 325 Tokyo. Japan IDE LEON. Aaron (R) Cia. Industrial de Zacatecas. $. .V Apartado 9, Guadalupe, Zac., Mexico DELGADO. Cyril B. (G) Tht Class Industry 55 W. 42nd St., New York 36. N. Y. DeLONG. Hcrmon \V., Ill (G) 67 Main St., Dansville. N. Y. (Department of Public Works) DEMAISON. R. J. (R) Quigley Co.. Inc.. 415 Madison Ave. New York 17, N. Y. DcMARlA. Vincent C. (G) Sylvania Electric Products, Inc. Box 6, Bayside. N* Y. . DEMUTH GLASS WORKS. INC. (George F. Young) Box 629 Parkersburg, W. Va. DENISON ENGINEERING DIV. AMERICAN BRAKE SHOE CO. (W. C. Denison), 1160 Dublin Rtl. Columbus 16, Ohio DENISON. George W. (SF) Ohio Clay Co.. Box 1776 Cleveland 5, Ohio DENISON. John C.. Jr. (G) John C. Denison 4 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 Cn. 1160 Dublin Rd., Columbus 16. Ohio DENMAN. Cedric E. (S) Great Ber.d Brick 3c Tile Co., Inc. Box 53, Great Bend, Kans. DENNIS. John S. 23 Michael Dr., Trenton 9, \\ J. de PABLO. Liberto Ohio State University 140 Lord Hall, Columbus 10. Ohio Dc PIOLENC. Gerard (X) Saint Gobain. Inc. 500 Fifth Ave., New York 36, N. Y. dePROSSE, Victor A. (El) 2164 Arthur Ave., Lakewood 7, Ohio i 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. (EFI) A. 0. Smith Corp. 3533 N. 27th Su Milwaukee 1. Wise. deROUX. Juan Ramon (I) Box 1436. 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. (BarboursviUe Day Mfg. Co.) DESENNE. Claude M. (S) 505 Cote de l'Eglise Boischatel Co. Montmorency. Que., Canada (Citadel Brick Ltd.) DETAMORE, Walter A. (S) Barium Reduction Corp. South Charleston 3, W. Va. DF.URVORST. I-'. 13. M. Ilet Zonne!iu:, I,aa>herp.;t.;:i * Terborg. Holland i Koninklijkc Fabriekert D-.rpcnbn.ck & Reigcrs X. V ) DEUTSCHE GLASTECHNISCHE GESELLSCHAFT Bockenheimer Lands:ras-e I 26 Frankfurt ( Main i. German v DEUTSCHE KERAMISCHE GESELLSCHAFT Reuterstrasse 235 Bonn/ Rhein. Germany DEUTSCHER. Jerome S. (Si) R. R. 1, Box 933 4199 Tcmescal Ave.. Norco, Calif. (Hancock Brick Co.) DeVILBISS CO. ( E. F. Frey) Phillips & Detroit Ave. Toledo 1, Ohio de VILLE. 2/Lr. Ralph W. i I) Hq Air Materiel Command. Box 1J4J. Wright*?atter<on AF3. Ohio DEVI.IN. James F. (El) 4224 Brenau Ave., Apt. 2 Dayton 9, Ohio (Pemco Corp.) DeVOE. Charles F. (R> 33 W. Fourth St.. Corning, N. Y. (Corning Glass Works) DeVRIES. Robert C. (3) General Electric Co.. Research Lab. The Kuo,l. Schenectady 3, N. Y. DEW. Robert J., Jr. (B) Ceram-Chem. Research Lab. University of Tampa, Tampa. Fla. DEWEY. B. F. (W) 42 Summit St., LeRov. N. Y. (Lapp Insulator Co.) DEWEY, John L. (R) Reynolds Metals Co. Box 191. Sheffield. Ala. de WYS. E. Christiaan <Bi 35 Maple Dr.. Che>ieriand. Ohio ( Ferro Crp DEXHEIMER. E. C. (E) 917 Country Club Drive St. Louis 2!. Mo. DEYO. R. Daniel (R) 104 Dogwood. Park Forest. 111. (United States Steei Corp.) DlA. Januario D. Pioneer !**rceiain Imiust^y. Inc. 1922- D Inverne** St.. Stn. Ana Manila. Philippine* DIAMOND ALKALI CO. (L. T. Weishans) Cement-Coke Div. 3C0 Union Commerce 31dg. Cleveland 14, Ohio DIAMOND. Grant 5. (RFI) Electro Refractories 4 Abrasives Corp. 344 Delaware Ave.. Buffalo 2, N. Y. DIAMOND, Jacob J. (B) National Bureau of Standards Conn. Ave. 4 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, N. 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, N. Y. (Corning Glass Works) i DICKAS, Charles H. (E) 1524 Sunset Rd., Chattanooga, Term. (Samuel Stamping 4 Enameling Co.) DICKENS, H. A. NUsen 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.) Roster 27 DICKEY, John M., Jr. '(SI) Haniey Co., Summerville, Ta. DICKINSON, i. J. i Pm American S:ne!tinq & Rer.ntr.g Cj S**nth I'l.iinneM. N. J. DICKSON. Terry E. 22! Vincent 5c.. Morr.eil. N. \. U l Li ML. Car: W. i R i 325,'j \Viint<>re 1*1. 5yracn>c N. Y i Electrn Rc(rne*tries it Abrasive* C^ri*. > DIET CRT. Marry \V. i R ) Harry W. Dicicrt Co. 1214 Virginia Dr., Kerrville. Texas DIETRICH, Waldemar F. (B) 1209 Potomac Sc.. N. W. Washington 7, D. C. (United States Bureau of Mines) D1ETTERLE, Edwin W. (WI) 3334 Monteitb Dr. Los Angeles 43, Calif. (Ferro Corp.) DIETZ. Earl D. 5*9 Hess Rd.. Columbus in, Ohio DIETZEL. Adolf Max-PUnck-Institut fur Silikatforschung, Wurzburg, Germany Neunerplatz 2 DiLAZZARO. John F. 4015 34th S.. Seattle 3, Wash. DILLARD. William F., Jr. (S) 2125 . Side Court, Augusta, Ga. (Merry Bros. Brick 8c Tile Co.) DILLENDER. Richard D., Jr. (W) 3 Sunnybrook Trail Signal Mountain, Tcnn. (American Lava Corp.) DILLIARD, Paul D. (GI) 1313 E. Wheeling St., Lancaster, Ohio (Anchor Hocking Glass Corp.) DILLINGHAM, Robert P. (W) 2207 Cheyenne St., Goiden, Colo. (Coors Porcelain Co.) DILLON. C. L. i G) Latchford Glass Co.. Box 71707 Los Angeies l. Calif. DILLON. Zale (W) 56 Riverlawn Dr., Fair Haven, N. J. (Atlantic Tile Mfg. Co.) m.NGLEDINE. H. F. (S) National Sewer Pipe Ltd. .iJO Wentworth St.. N. Hamilton. Out.. Canada DINGLER. Edward L., Jr. (R) Carborundum Co., Refractories Div. Niagara Falls. N. V. DINGWALL. Andrew (G) 588 Grove $?.. Upper Montclair. N. T. (Consulting Scientist) DIPPELL. L. V. (R) 1407 Cherry Lawn Ave. R. R. 3, Owosso. Mich. (Mid-West Abrasive Co.) DIRKSEN. A. J. (G) American Potash St Chemical Corp. 99 Park Ave.. New York 16, N. Y. DIRLAM. Arthur C. (G> 208 N. Talley Ave., Muncie. Ind. (Ball Bros. Co.. Inc.) DISTILLATOR, Philip R. (W) Jackson Vitrihed China Co. 2 West St.. Pelham Manor 65. N. Y. DITHRIDGE. Edward H. (E) Richmond Plumbing Fixtures Div. Rheem Manufacturing Co. 1729 Pennsylvania Ave.. Monaca. Pa. DIXON. Anna Lane (D) 815 N. Fourth St., Burlington. Iowa DIXON. C. E. (B) 6270 Lubao Ave. Woodland Hills. Calif. (Atomics International) DIXON. Gene (R) Kyanite Mining Corp.. Cullen. Va. DIXON, JOSEPH, CRUCIBLE CO. (W.-R. Wyckoff) 167 Wayne St. Jersey City 3. N. J. DLUGOZIMA. W. R. (WI) Patterson Foundry St Machine Co. Ceramics Div.. East Liverpool. Ohio Vol. 36. No. 10 (1957) DODD. Charles M. (.Sri) Dept, of Ceramic Engineering Iowa State College, Ames, Iowa l)t.)DGE. Alfred \V. i.Gi Continental Can Co.. Inc. Hazei-Atlas Glass Div. !-** Market St.. Zanesville. Ohio DOERSELN, Kenneth ?. Silk City Tooi St Machine Works 221 Seventh Ave.. Hawthorne. N. J. DOLL. Charles E. i\V) Mount Clesens Pottery Co. Mount Cleaeas. Mich DOMINION MINERALS DIV. RIVERTON LIME STONE CO(Robert C. Briniit. Tinev River. Va. DONAHEY. John W. (GI) ' Box 191, Paoli, Pa. (Foote Mineral Co.) DONEN, I. Consolidated Glass Works Ltd. Box 562, Genr.rston Transvaal, South Africa HONEY. Louis M. (B'i Mackin Lane. R. R. 20 Knoxville, Tenii. lOak Ridge National Lah.i DONLEY, John C. i D Pemco Corp.. iftOl Eastern A\e. Baltimore 24, Mil. .DONLON, Robert L. i'GJ) Coming Glass Works Harrodsborg. Ky. DONNENWIRTH. A. L. (RI) Carborundum Co., Falconer, N. Y. DOORNWAARD. John 36 Third St.. N. W. Sioux Center. Iowa DORA. Joseph C. E) 817 Oak St.. Danville. III. (Ordnance .Ammunition Command) DORAN, Robert F. (GI) Sylvania Electric Products. Inc. Cottage PL. Mineola, N. Y. DORF. Arthur I1791 E. I4ih Sr.. Brooklyn 29. N. Y. DORML'TH, Lawrence C. (B) Pennsalt Chemical.-. Corp. Box 4388. Chestnut H:il P. O. rhiladeipbia IS. Pa. DORN. Alvah J. (G) 4 Oakwood Dr., Box 152 Coming, N. Y. (Coming Glass Works) DORN. G. Neal (SI) 1015 Xerap Ave., Ironton. Ohio (Carlyle Tile Co.) DORSETT. O. A. (W) Knox Poreeiaia Corp.. Knoxviile. Tenn. DORSEY. Baird L. (R) 300 Walnut Rd.. Pittsburgh 2. Pa. (Jones & Laughiin Steel Corp.) DORSEY, John J. (WI) P. R. Mallory St Co.. Inc. 3029 E. Washington St. Indianapolis 6. Ind. DOTY. Henry S. i R) Commercialores. Inc. 30 Church Sc.. New York 7. N. 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. Homroef Co.) DOUGLAS. Edward A. (R) , 621 S. Freedom Ave.. Alliance. Ohio (Babcock 5k Wilcox Co.) DOUGLAS, Richmond Douglas Firebrick Co., Ltd. Dairy, Ayrshire, Scotland DOUGLAS, R. W. Society of Glass Technology uThonjton." Hallam Gate Rd Sheffield 10. England DOWDLE. Hugh J.. Jr. Box 2905. Clemson College Sta. Oemson. S. C. DOW LING, Robert r. (G) American Opticai Co. Sou:hbrid?e, Mass. DOWNS. Charles D. .,'.V) Columbian Carbon Co. Mapico Color Unit -St.. Crer.uii I' DRAKE. Arthur D ^ < 1. R. R.. Ohio iCaycrat't Co.) DRAKE. M._ Ellis (D ; Alfred University. Alfred. N. V. DRAXENFELD. B. F. 4 CO. (Scott J. Courtney) 45--47 Parlt ?!. New Yor'< 7 N. Y. DRAKER. Harry C. (M) 38600 Caurtland Dr.. Willoughby, Ohio (Harshaw Chemical Co.) DRAMMENS CLASSVERK (Ragnar Tanberg) Drammen. Norway DRAPER. Perry E. i\V) Mansneld Sanitarv, Inc. PcrrysviUe, Ohio ' Helmut E. (G) -mith Kline 4 French Labs. 1530 Spring Garden St. Philaaelphia 1. Pa. DRESSLER, Philip (MFD Swindell-Dressier Corp.. 3ox 1383 Pittsburgh 30, Pa. DREYER. Donald H. (G) T. C. Wheaton Glass Co. Miilville. ,\f j DREYLING. Lewi, J. (R) 229 Milltown Rd.. Milltown. N. J. (Quigley Co., Inc.) DROUHARD, w. ]. (\V1) Manstield Sanitarv. Inc. Perrysviile, Ohio ' DRUCXER, Julius Farbenfabriken Bayer -^t*enSC3ellscha(t. 7-9, Rheinu(erstr. -^refe^-Uerdingen. Germany DRUMMOND, Charles K. (G) 1639 Cass Rd.. Maumee. Ohio (Owens-Illinoi,) DC3E. Alfred fD) 425 11th St., Lincoln, 111. (Stetson China Co.) DU3ER. Wil!iam 1143 Marseille Dr Miami 3each 41. Fla. DU3LER. Robert H. AV) Crane-Pacific Co. 330 >V. Citrus St.. Coiton. Calif. DuBOIS. H. 3. (MFD Golding-Ke-ne Co. Box 456. Keene. N. H. DUCKWORTH, Winston (BFI) Battelle Memorial Institute 505 King Ave., Columbus I. Ohio DUDDING. B. ?. International Commission on Glass Research Laboratories General Electric Co.. Ltd. Wembley, Middlesex. England DUE. Herbert J. (\V) 11 Scoies Ave., Clifton. N. J. (St. Joseph Lead Co.) DUc-CKER. Heyman C. (G) 23927 Emerson Way. Inkster. Mich. (Ford Motor Co.) DUEVEL. Charles O., Jr. (G) American Thermos Products Co. Thermos Ave.. Norwich. Conn. DUEY. Robert R. (S) 4217 Brook Rd.. Richmond 27. Va. (Southern Lightweight Aggregate Corp.) DUFF. R. D. (C) 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 Faitrnount, La Crescenta. Calif. (Gladding, McBean & Co.) Roster 29 DUGGAN. J. J. i'j; Walsh Refractories Corp 101 Ferry Sc.. Sc. Louis 7, Mo. DC HN. E!:::er C. I V.') Franklin Chemical Co. II? W. Chestnut S:. Cclurr.bus ! 5. Ohio DCHRS3EN. Alfred (D) Commercial Decal. Inc. Box 7:?, East Liverpool. Ohio DUKE. John J. (W) Box 33. Saxor.burg. Pa. (Du-Co Ceramics Co.) DUL3ERC. Irving (RI) 254 X. Allegheny St., Bellefonte, Pa. (J. H. France Refractories Co.) DULIN. F. K. (3J) Champion Spark Plug Co. Ceramic Div. 8525 Butler Ave.. Detroit II. Mich. DUNBECX, Nonr.an J. (R) International Minerals & Chemical Corp. 20 X. Wacker Dr., Chicago 6, III. - DUNCAN. .!. Earle (Gr) Pittsburgh Plate Glass Co. Research Lab.. Creighton, Pa. DL'XCAX. Russell F. (B) 209 Frankiin Dr., Berea, Ohio (Ferro Corp.) DUXCOMBE. George H.. Jr. (SF) ISO 2. Frambes Ave., Caljmbus I, Ohio (Evans 3rick Co.) DL'XEGAX, Harry C. (B) 433 Glenhill Dr., Chattanooga 5. Tenn. (American Lava Corp.) DL'XGAX, Robert H. (BI) 6850 Meadowbrook Manor St. Louis Park. Minn. (Minr.eapolis-Honeywell Reg. Co.) DUXX. H. E- (R) Suite 206. 300 Mt. Lebanon Blvd. Pittsburgh 34, Pa. (Vanadium Corp. of America) i DUXX. John P. f\V> Coming Glass Works. Corning, X. Y. . DUXX. Peter E. lG`> I Rauland Corp.. -aJ-15 X. Knox Ave. Chicago -il. III. DL'PLIX. V. J.. Jr. (BFI) Box 785. Lynchburg. Va. (Babcock Sc Wiicox Co.) du PONT. S. r.. de NEMOURS * CO.. INC. (John M. Olsen) Electrochemicals Dept. Wilmington 99, Del. DURFEE. George L. (B) Wyman-Gordon Co. 105Madison St.. Worcester, Mass. DURHAM. Carl T. (E) "42 Windsor Ave., S. W. Roanoke. Va. (General Electric Co.) DURXWIRTH. Roy K. Box 273. Alfred. X. Y. DURST. Wiiliam A. (B) Lynch Rd.. St. Marys. Pa. (Stackpole Carbon Co.) DUWE2. Pol (B) California Inst, of Technology Pasadena. Calif. DYCK. Waiter E. (G) Pittsburgh Plate Glass Co. Works i4. Ford City, Pa. DYER. Kenneth A. (S) 4701 Finley Dr., Austin, Texas DYNES. Marvin \V. (G) Van Dyne Quartz Works Box 148. St. Charles, 111. DYRE. Warren T. (E) 317 Estaugh Ave., Haddonrield, X. J. (Universal-Rundle Corp.) DZURA. Edward J. (B) American Optical Co. Research Center Southbridge, Mass. Vol. 3G, No. 10 (1957) E EA.GLE. J. Eugene (MF:J 3202 Methane Way, 3aI::morc 22. Md. ( Pemco Corp.) EAGLE-PICHER CO. l D. R. Carter; American 3Mg . Cincinnati *.. Ohio EARHART. W illiam H. 11 j) Rk A Yic:-)r, Glass Lai). S. Adam-* St., Marion, In*:. --A R L. ]. A i:: e d (B) 1621 5 Ei Moiino St. Alhambra. Caiif. (Consolidated Electrodynamics Corp.l EASTER. George J. l RFI) Electro Refractories Sc Abrasives Corp, Willett Rd., BuiTalo 19, X. V. EASTLY. Michai R. 3?37 Ashworth. Seattle 3. Wash. E3ERSOLE. Robert A. (R) Chisholm. Boyd 3c White Co. 610 W. 57th St.. Chicago 21, 111. ECKARDT. R-mi.iM 3. 72*' E. Second S.. Salt Lake City, L'tah ECKEL. 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. ECONOMO?. George (W) 36 White Ave. Newton Centre 5. Mas*. (Massachusetts Institute ni Technnlovv) EDGAR. Albert C. fW) Ecgar Plastic Kaolin Co., Edgar, Fla. EDGAR. Clement B. (R) M. H. Detrick Co.. 1620 Oliver 31dg. Pittsburgh 22. Pa. EDGAR PLASTIC KAOLIN CO. (Albert C. Edgar) Edgar. Fla. EDLIX. Vernon (B) 5960 X. Kenmnre Ave. Chicago JO. III. lArnnuir Research Foundation) EDSTRaXD. Elmer W. (M) 5544 3niilamier Ave.. Berkeley i. III. E.tmilier? Engineering Co. EDWARDS. F. M. (W) 4605 Croshy Rd.. Knoxville 19. Tenn. i Knox Porcelain Corn.) EDWARDS. J. 3. (S) Reliance Clay Products, Box 13225 Dallas 20. Texas EDWARDS. Wiiliam R. (\V) 424 Balsam Dr.. Davison. Mich. (A C Spark Plug Div., General Motors Ccrp.) EGERTOX. Lawson (B) Bell Telephone Labs.. Inc. Murrav Kill. X. J. EHLERS. Ernest G. (3) Ohio State L'niversity Dept, of Mineralogy, Columbus. Ohio EHLERS. G. Milton (W) 4764 X. Oakland Ave. Milwaukee. Wise. EHMAX. Roy G. (GFI) 323 E. Hamilton Ave. State Coilege. Pa. (Pennsylvania State University) EHRLICH. Josef (W) 219 23rd. Santa Monica, Calif. (American Ceramic Products. Inc.) EICHBAUM. Barlane R. (W) E. Bend Park. 3 May Ct. Red Oaks Mill, Poughkeepsie. X. Y. (International Business Machines) EIDE, Alwin C. (E) American Zinc Sales Co., Box 327 Columbus 16, Ohio EISENBERG, Marvin (R) 5425 S. Dorchester Ave. Chicago 15. III. EISS. Roger L. Box 327, Alfred. X. Y. EiTEL. Wilhrim i 3 ! ) Dir. *f ln>:. nf Sii:ca:c Research University of Toledo. Toledo 6, Ohio EKDaHL. W. Graydon (G) Johns-Man vide Research Center Manvil'.e, X. J EKEDAHL. J. Char.es (R> 1006 Gardner Ave. Joliet. Ill I Illinois Glav Products Co.) EKZLUXD. Bror S. (3; Trionics Corp. 3ox 549. Mautsor. I. Wise. EL3 L. William M. (G* Pittsburgh Plate Glass Go. Works --10. Her.rvetta. Okla. ELDER. J. C. (WH Robertson Mfg. Co., Box 343 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.. Bul?alo 2. N. Y. ELJER CO.. Enamel-Ware Div. (L^_A, Bateman) Salem, Ohio ELLAS& Earle R. (RI) 344 Clinton Ave., TiiTin, Ohio (Basic, Inc.) ELLEFSON, B. S. (G) Sylvania Electric Products. Inc. 1*40 Broadway, New York 19, X. Y. ELLIOTT, Amos W. (B) Covered Wagon Ranch Cloverdale, Calif. ELLIOTT. 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 Webster St.. Oakland 12. Calif. ELLIS. James S. Massachusetts Institute of Technology Rm. 4-051. Cambridge. Mass. ELLIS. J. Leslie (S Bex 47. Summitviile. Ohio i Summitville Tiles. Inc.) ELLISON. Henry W. (G) 169 E. Third St.. Corning, N. Y. (Coming Glass Works) ELLISON. R. W. (R) 1551 E. Lama Alta Dr. Altadena. Calif. ELMER, Thomas H. (B> 219 E. High Si.. Painted Post. X. Y. (Coming Glass Works) ELOSUA. Bernardo <DF*> Ladrillera Monterrey. S. A. Box 360. Monterrey, X. L.. Mexico ELSTON. Keith (WI) 117 Somerset Ave.. Pittsheld, Mass. (General Electric Co.) ELY. William G. (G) Pittsburgh Plate Glass Co. I Gateway Center, Pittsburgh 22, Pa. EMANUEL. E. C. (G) Armstrong Cork Co. Research St Development Center Lancaster. Pa. EMHART MANUFACTURING CO. fW. H. Shorter) 333 Homestead Ave. Hartford 2. Conn. EMHISER. Donald (R) 1105 Eighth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) EMISON. M. Hershel (G> Coming Glass Works. Corning. N. Y. EM LEY. William S. (W) W. Maitland Lane, R. R. 3 New Castle. Pa. (Shenango China. Inc.) EMMERICH, Charles W. Box 246. Alfred. X. Y. EMMERICH, Liberata (G) Pennsylvania State University Mineral Industries Library University Park, Pa. Roster 31 ZMRIUH. Alien H. 7 50 Br.M.kside Dr.. EM RICH. Liarry R. Gjl) .1425 Anderson. 5. .. A;i. L5 Albuquerque. N. M. 'Anchor Hocking Uurp.) EMRICH. Emerson \\. tMl) R. T. Vanderbilt Labora;ories East Norwalk. Conn. EM RICH. Harold W. (SI) lioO 5. Kramena. Denver, Colo. Denver Brick d: Pipe Co.) &XBERG. Christer Tegellaboratoriet ( 3rick Laboratory) Drottning Kristinas vag 45 Stockholm O, Sweden ENGLE. Glen 3. (3) Battelle Memorial Institute 505 Kin? Ave., Columbus I, Ohio EXGLERT. William J. (G) 304 Vernon Sc., New Kensington, Pa. (Pittsburgh Plate Glass Co.) ENGLISH CHINA CLAYS SALES CORP. 551 Fifth Ave.. New York 17. N. Y. EXHL'S. Hans Gosta AB Maiardalens Tegelbruk Stockholm 3, Sweden ENLOE, Scroop W. (M) Dillsboro. N. C. (Harris Clay Co.) ENLOE, Scroop W\. Jr. (M) Harris Clay Co., Spruce Pine. N. C. ENOCH. C-.aries R. (R) 320 Spring Ln., Bridgeport, Pa. 1 Refractory Specialties Co.) ENOS. W. Kenneth 19J-D Congress St.. Charleston, S. C. EPSTEIN. Edward. Jr. (R) Laclede-Christy Works Refractories Div., H. K. Porter Co. 4705 Ridgewood Ave.. Sc. Louis. Mo. ERARD, Edward (G) Vidrio Neutro, S. A. Prolongacion Galls de la Rosa No. 9. AtreaporzaJco. D. F., Mexico ERICKSON. A. .Alfred (G) 34 Pershing St., Coming. N. Y. (Coming Glass Works) ERICKSON. Allen J. (G) 4239 E. 74th St.. Seattle 15, Wash. (Northwestern GIas Co.) ERIE TECHNICAL CERAMICS DIV. ERIE RESISTOR CORP. (Bobby L. Joyner; Box f>?7. Stare College. Pa. ERNST. Waiter 3. (Mi 908 Wedgewood Dr. Knoxville 14. Ter.r.. (Volunteer Portland Cement Co.) ERSLEY. Emmett J. (GJ) R. R. 1. Box 352.B 24585 Wayman Sc.. Xewhall. Calif. (Thatcher Glass Mfg. Co.) ERVIN. Guy. Jr. (B) Research Laboratory, Norton Co. Worcester, Mass. ERWIN. Lee R. (G) 419 Tocino. Duarte. Calif. (Carrier Corp.) ERZEN. Frank C (El) 731 S. Greenberry Dr. West Covina, Calif. (Bulwark Corp. of America) ESCHENBURG. Robert L.. II Floresviile. Texas ESSELSTYN. Willard A. (G) R. R. I, Canonsburg, Pa. (W. A. Esselstvn & Co.) ESTES, Joseph F. (W) Haeger Potteries. Inc. 7 Maiden Lane. Dundee. 111. ETHEREDGE. Otis K. (M) Box 252, Gordon. Ga. (Southern Clays, Inc.) ETRIS. Samuel F. (R) 100 W. Nippon St. Philadelphia 19, Pa. (American Society for Testing Materials) Vol. 30, No. 10 (1957) EU3ANK. William R. ( Bj 5301 Hudson Rd.. St. Paui 6. Minn, t Minnesota Mining & Mfg. Co.) EUBANKS, Allred G. (E) 10302 Stella Court, Kensington, Md. (National Bureau of Standards) EUSNER. George R. (R) 1025 Summit: St., McKeesport. Pa. (United Sates Steel Corp.) EVANS. Charles E. iM) 170 Kendall Rd.. Franklin Park. X. J. Titanium Alloy Mfg. Div. National Lead Co. EVANS. C. L. IW) Universal Clay Products Co. 1523 E. First St.. Sandusky, Ohio EVANS, Daniel Owen (G) Hiilcrest & Linden Ave., Mapleview Charleroi, Pa. (Coming Glass Works) EVANS. Edward J. Welsh Tinplate & Metal Stamping Co. Ltd.. 3ox 14 Llanelly. Carmarthenshire. England EVANS. Isaac S. (G't Pittsburgh Plate Glass Co. Works CIO. Hcnryctta. 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. l\V) 504 N. Orchard Rd.. Syracuse *E X. Y. (Tru-Tile, Inc.) EVANS. Ross M. (S) 604 E. Mechanic St.. Brazil. [nd. (Arketex Ceramic Corp.) EVANS, T. J.. Ill (S) Evans Pipe Co., Uhrichsville. Ohio EVANS. W. Gordon Geo. L. Ashworth 4 Bros. Ltd. 3road Street Works Hanley. Sroke-on-Trenr. England EVANS. William W. (Si) 1342 E. National. Brazil. Ind. (American Vitrified Products Co.) EVERHART. J. O. (SFI) Engineering Experiment Station Ohio State University Columbus 10, Ohio EWALD. Menvin R. 'M) Box 19A. R. R. 1. Monciova. Ohio (Surface Combustion Corp.) EWING. Robert F. *WI) Mansheid Sanitary. Inc. Perrysville. Ohio EXOLON CO. (Harvey J. Robillard' 1000 E. Niagara St.. Tonawanda, N. Y. EYERLY. George B. (S) Malvern Brick A Tile Co.. Box 415 Malvern. Ark. F FABER. William M. 1207 W. Oregon. Apt. D. Urhana. 111. FABIANIC. W. L. ( R) Laclede-Christy Works Refractories Div., H. K. Porter Co. 4705 Ridgewood Ave.. St. Louis. Mo. FABRICA de LADRUXOS INDUSTRIALES. y REFRACTARIOS, S. A. (Salvador Odriozola Gomez) Apartado 390. Monterrey, N. L.. Mexico FABRICA de PORC2LANA da VISTA ALEGRE, LDA. Gabinete a Lab. Central de Estudos Candal, Vila Nova de Gaia. Portugal FACKT. George P. (WF) 408 Pasco del Ma., Box 378 Palos Verdes Estates. Calif. (Redondo Tile Co., Ltd.) FAHRENBRUCX. William O. (GI) R.R. 1, Box 95, Tiffin, Ohio (Sterling Grinding Wheel Co.) rAlLMEZGER. Howard (.WFI) Victor Insulators Div., 1-T-E Circuit 3reaker Co. Mapie Ave., Victor, N. Y. FAIN. Charies C. X.* Box 924. Cierr.son. S. C. iClcrr.son College) FAIR-FACTS CO.. -J. Ryan Smith) Fairtacts St., Trenton 3. N. J. falconer, Donald p. cr) 1013 Mapie Ave., Evanston, 111. (Sales Engineer) FA.LES, Gordon E. S141 S. Ellis Ave.. Chicago l'.*. 111. FALLON. Frank J. AVI) 30 Foster Dr.. Framingham, Mass. ( Raytheon Manufacturing Co.) FALLS. Joseph (G) Dearborn Glass Co., 6600 S. Harlem Bedford Park. ?. O. Argo, 111. FALTER. Arthur H. (R) 8635 Jacob ?1.. Niagara Falls, N. Y. (Carborundum Co.) FAXDERLIK. Milota Skroupova 957 Hradec Kralove. Czechoslovakia FARGO, Jarvis J. ( R) 2340 El Caminito. La Crescenta, Calif. Gladding, McBean St Co.) FARKAS. Howard (D) United States Stoneware Co. 60 E. 42nd St., New York 17, N. Y. FARM ELL. James H. (W) Louthan Manufacturing Co. East Liverpool. Ohio FARR. Archie E. (E) O. Homme! 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. Eta. Fauchon-Baudot 21, Ave. de Tourville. Paris 7. France FAULKNER. Karl B. (G) 179 Victory Kwy,, R.R. 2 Painted Post. N. Y. FAUST. Ernest H.. Jr. (RI) 58 Klarman Dr., Mt. Carmel, Conn. (American Refractories 5c Crucible Corp.) rAUST, George T. (3'` 9907 Capitol View Ave. Silver Spring. Md. (U. 5. 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 Urhahn. Laredo. Texas (U. S. Air Force) FEDERAL GLASS CO. (Henry H. 3lau) 515 E. Innis Ave. Columbus 7. Ohio FEDERAL SEABOARD TERRA COTTA CORP. (O. E. Mathiasen) Box 301, Perth Amboy* N. J. FEDOCX, Michael ?. (R) 4214 Ashwood Dr., N. W. Canton 3. 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. I, El Paso. Texas (U. S. Army) FELDMAN. Gail H. (GJ) 43 Villa Cl. Hempstead. N. Y. (United States Navy) Roster 33 f L X H. R Err.eit i'A * ii:nT.er Rd.. R. R. 5 Northneid. Ohio ! Frrro Corp.) FELLOWS. R. L. (Erl* N. Kensington Ave.. La Grange. III. I'Ccr.t-jrv Vitreous Enameling Co.) FEL5. C.ji (RI) 11 Dcrorres: Ave. Xcrrh Plainfield. X. J. ( :::j Refractories. Inc.) FELTON. Ernes: >90 X. Park Ave.. Pomona, Calif. FENERTY. M. J. (3) Aluminum Co. or Canada Arvica. Que.. Canada FENG. Chi-Zng Taiwan Po^cr Co. No. 1 StatT-Resistnnce Xuo-Tze-Ko. Mo-Shun Taipei. Taiwan. Formosa. China FENITY, Robert D. (WI) Minneapolis-Honey well Research Center 500 Washington Ave. S.. Hopkins. Minn. FENSTERMACHER. John E. (RJ) 502 Cherry, Clearfield. Pa. ' I Karbison-Walker Refractories Co.) FENTON. Waiter M. (E) . Lithium Corp. of America, Inc. 2560 Rand Tower. Minneapolis 2, Minn. rENTZKE. A. Daniel (R) 2350 Getzen Dr.. Augusta. Ga. (Babcock 3: Wilcox Co.) JERENCE. Michael, Jr. (B) Ford Motor Co.. Scientific Lab. 3ox 2053. Dearborn. Mich. IRGUSON, Donald Box 929. Alfred, N. Y. FERGUSON, Douglas J. (D) Pigeon Forge Pottery Pigeon Forge, Tenn. IRCUSQN, D. Robert. Ill (R) -<01 Vine Sr.. Ease Liverpool. Ohio (Crescent Brick Co.. Inc.) RCUSON. Robert F. (G) 1763 Caieb Drive, Zanesville. Ohio (Continental Can Co., Inc. Hazei-AMas Glass Div.) RCUSON, Robert L. (S) Yankee Hi:I 3rick Mfg. Co. 723 Stuart Sldg.. Lincoln 3. Nebr. RREIRA, Laurence E. (3) 1221 III St.. Apr. 2C. Golden. Colo. .Coors Porcelain Co.) HR5, Daniel Vidplan S. A.. Reai No. 4415 Montevideo. Uruguay RRIS, Harry Philip (M) 20 Birch Dr., Levittown, Pa. (Simcnds Abrasive Co.) RRIS, James E. (G) Hooker Electrochemical Co. Niagara Fails. N. Y. ;RRO CORP. (R. A. Weaver) ai50 E. 56th St.. Cleveland 5, Ohio :rro engineering co. Benjamin F. Anthony) !ox 6503. Cleveland 1, Ohio :SLZR. Rav T. (W) A.A.A. Corp.. Box 270. Gadsden. Ala. :S3LZR. A. H. (WFI) Highland Park Sta.. Panama City. Fla. (AC Spark Plug Div., General Motors Corp.) 'ER. H. (R) Cia. Mexicana de Refractarios A. P. Green, S. A., Haraburgo 51 Apartado Postal 71 Bis, Mexico, D. F. ERLEY. Guy H. (R) 3ox 25. Chippawa. Ont.. Canada (Norton Co.) TEROLF. Fred (R) Aluminum Co. of America 2331 Victory Pky., Cincinnati 8, Ohio 7ERS. Cecil R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio 0L. 36. No. 10 (1957) FETZER. George W. (M) 1205 *7:h Ave., Columbus 11. Ohio (George Fetzer Ceramic Supplies) FEYLING, Claus A. Eie Stentaiiabrik Egersund. Nor wav FIBERGLAS CANADA. LTD. (John MacRae) Box 309 Guelph, Ont.. Canada FIEDLER. William S. <C> Bjorksten Research Labs., Inc. Box 253, Madison 1, Wise. FIELD, Theodore E. (3) Corhart Refractories Co. 1600 W. Lee St.. Louisviile 10, Ky. FIELDS. David T. (EJ) 2505 N. W. Sixth St., Gainesville. Fla. (Metai Enameling Corp. of Florida) FIELDS. Ernest. Jr. (R) R. R. 1, Box 30, Frostburg, Md. (Big Savage Refractories Div.) FILES. John A. (B) Box 47. Amboy, Ind. (RCA Tube Div.) FILIPPI. Charles R. (S) Illinois Brick Co. Box 206. Blue Island, III. FILIPP!. Hugo fSF) 11406 Calumet Ave.. Chicago 23, III. (Illinois 3rick Co.) FILLMORE. Charles L. (WI) Globe-Union, Inc. 900 E. Keefe Ave., Milwaukee 1. Wise. FINDLAY CLAY PRODUCTS CO. (R. S. Craft) Washington. Pa. FINKEL. Robert G. Box 163, Wadsworth. III. FINLAY, G. R. (R) 2231 Waters Ave. Niagara Fails, Ont., Canada (Norton Co.) FINLAYSON, John R. (X) American--Standard. Foreign Div. 40 W. 40th St.. New York 13. N. Y. FINNEY. Edwin L. (S) Claycraft Co., Shawnee. Ohio FIRESTINE, Arthur G. (G) 34 Dewey Ave., Fairport. N. Y. (Bausch & Lotnb Optical Co.) FISCHER. Eugene A. (R) 108 Newtoo Ave., N. Worcester 9, Mass. (Norton Co.) FISCHER. Robert J. (W) IS Fairway Ave. West Long 3ranch, N. J. (Signal Corps Engineering Labs.) FISH. E. Thomas (RI) Great Lakes Carbon Corp. 53th 3c Pine Ave., Niagara Falls. N. Y. FISHER, Eugene A. (W) Electric Auto-Lite Co. Spark Plug Div., Fostoria. Ohio FISHER, Henry C. (R) 50 Coventry* Rd., Worcester 6. Mass. (Norton Co.) FISHER. Joseph R. (W) Bell Telephone Labs., Rr.i. IA-3-U Murray Kill, N. J. FISHER. Richard G. 17 Wells SL Hornell, N. Y. FISHER. William V. (G) Anchor Hocking Glass Corp. Lancaster, Ohio FISHLEY, William S. (W) Sparta Ceramic Co. ^ East Sparta, Ohio FISH-SCHURMAN CORP. (Murray Yawitz) 70 Portman Rd. New Rochelle, N. Y. FITZGERALD. Alex E. (RI) A-4 Avon Apts., Narberth. Pa. (General Refractories Co.) FITZGERALD, J. Vincent (W) Tile Council of Am. Research Center Rutgers, The State University School of Ceramics New Brunswick. N. J. FITZPATRICK. William D . R ) 512/ 5. Passage Dr . Pittsburgh 56. ?a. ( Harbtson-Walker Refractories Co.. FITZSIMMONS. Elmer 5. `.RI) (Them. & Abrasives Research Dept. Cincinnati Milling Machine Co. Cincinnati 9. Ohio FITZSIMMONS. Robert (W) R. R. 1. Oakfield. N. Y. (Lapp Insulator Co.. Inc.) FIX. Frank A. (X) Posey- Iron Works. Inc. Br:ck Machinery it Mixer Div. Lancaster, ?a. FIX. Wiiliam G. (M) Carborundum Co., Glo'oar Div. 3335 W. 47th St.. Chicago 32. 111. FLANAGAN. Charles D. (B) 1152 Oak Hill Ave., Attleboro, Mass. (Metal & Controls Corp.) FLEISCHER. Arthur (B) Nickel Cadmium Battery Corp. Box 349, Easthampton. Mass. FLEMING, A. P. M. Metropolitan Vickers Electrical Co., Ltd. Trafford Park, Manchester 17, England FLEMING. Charles A. (El) J613 General Bates Dr. Nashville 4. Tenn. (Pemco Corp.) FLEMING. David M. (SJ> 940 N. Front St., Milton. Pa(Glen-Gery Shale 3rick Corp.) FLEMING. Thomas T. (R) Frank Samuel & Co., Inc. 2200 Lincoln-Liberty Bldg. Philadelphia 7, Pa. FLEXON, John D. (R) J440 Gallatin Rd., Toledo, Ohio (Owens-Illinois) FLICK, Fuiton B. (R) Brown. Critchlow, Flick & Peckham 1706 First National 3ank Bldg. Pittsburgh 22. Pa. FLINT. E. ?. (31) Arthur D. Little. Inc. 30 Memorial Dr.. Cambridge 42, Mass. FLINT. Francis C. (GFI) Continental Can Co.. Inc. Hazel-Atlas Glass Div. 15th & Jacob Sts.. Wheeling. W. Va. FLORENCE. Jack M. (G'. Kixbie Glass Co. Box 1035--1036. Toledo 1. Ohio FLORIDA TILE INDUSTRIES, INC (James AV. Sikes) 603 Prospect St. Box 451, Lakeland. Fla. FLU. Eldon 3ruce (W) 1533 Crooks Rd., Royai Oak, Mich. (Ceramic Div. Champion Spark Plug Co). FLYNN, Paul H. (3) International Nickel Co.. Inc. Bayonne Works, Bayonne, N. J. FOGELBERG. Sven Webb's Crystal Glass Co., Ltd. Dennis Glassworks Stourbridge, England FOLKERS. Charles L. (R) 524 N. Second St.. Apt. 13 San Jose 12. Calif. (Kaiser Aluminum & Chemical Sales Corp.) FONTANA. Eugene H. (G) Box 259, Coming, N. Y. (Coming Glass Works) FONVIELLE. Frank P., Jr. (WI) Dentist Supply Co. of New York 500 W. College Ave., York, Pa. FOOTE MINERAL CO. (John D. Clark), 18 W. Chelten Ave. Philadelphia 44, Pa. FORAKER. Robert W. (El) Titanium Pigment Corp. 99 Hudson St.. New York 13, N. Y. FORBES. Charles C. (G) Allen B. Du Mont Labs. 750 Bloomfield Ave., Clifton, N. J. Roster 35 FOR3E3. Lewis J-3. ,G) Pi;king:on 3ros. (Canada) I.: I 165 Eloor St.. . Toronto 5. Ont.. Canada FORD. Frank J. <W> Jordan Tiie Mfg. Co. 909 Railroad St.. Corona. Calif. FORD. Fred J. (, 5) Box 595. San Francisco. Calif. (Consultant) FORD. George D. ('.VI) 2136 Wilmer St.. Zanesville. Ohio (Mosaic TUe Co.) FORD MOTOR CO. t Michael Ference, Jr.), Scier.tihc Lah. Sox 2053, Dearborn, .Mich. FORD. Walter D. (GI) Pittsburgh Corning Corp. Research & Development Div. Port Allegany. Pa. FORD. William D. (E) I/O-* W. 54th St.. La Grange. 111. (Sears Roebuck & Co.) FORDS PORCELAIN WORKS (I. A. Han?en) Perth Ambov. X. J FORESMAN. Grover C. (G) 212 Cedar St., Corning. N. V. (Corning Gl.m Works) FORESTER. Wiifred G- (M) Veritas Firing System Co. Box y74. Trenton 6. N. J. FORJAZ. Xicolau Torto Ferreira. C. P. Sao Paulo. Brazil FORKNER.-Henry R. (XI) 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, xexas (L*. S. Air Force) FORTH. Robert D. (E) 1569 N. W. Circle Dr. Kankakee. III. (Florence Stove Co.) FOSDICX. Marion L. (OF) 100 N. Main Ft., Alfred. Y. FOSTER. Bryan D. !41 . State St., Weilsviile. N*. Y. FOSTER-FORBES GLASS CO. \F. R. Mot'ch) Marion, ind. FOSTER. H. B. (S( Brick i Tile Service. :na. Box 6305 Summit Sta. Greensboro, N. C. FOSTER. Luther M. (3) Aluminum Co. of America Alcoa Research Labs. Box 772. New Kensington. Pa. FOSTER. Wilder D. (3) 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. Yeater) Mouncisville. W. Va. FOULDS. Donald T. (W) 4505 \V. I45th, Geveland II. 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. FRAD. William A. (R) 1800 Oak St.. Rolla. Mo. (Missouri School of Mines) FRAHME. Herman H. (\VI) 2258 Banning Rd., Akron 13. Ohio (U. S. Stoneware Co.) FRAME. Dudley P.. Jr. (I) Fa'orica Xacional de Porcelana S. A. Apartado 2056. Caracas. Venezuela FRANCE. J. REFRACTORIES CO. (William A. France) Snow Shoe. Pa. Vol. .16. No. 10 (1957) FRANCE. William A, ( R) J. H. r ranee Refractories Co. Snow Shoe. Pa. FRANCESCHIN I. Felippe J. V. de A. Ceramica Sao Caetano Caixa Pasta: 27S. Sao Paulo. Brazil FRANCIS. Ronald K. (I) Box 164. Alfred. N. Y. FRANCISCO. Allen C. (RI) 2S0 Brook Lane. Ches:er!and. Ohio i Koicait Industries. Inc.) FRANCK. Leer. Frv Franck & Sieeman. S. A. 20. Avenue Emmanuel Harer.-Nord /Brusseis, Belgium FRAN CL. Josef (B) 1302 Perth St.. Toledo 7, Ohio (Owens-Illinois) FRANK. Henry A. (W) Rockpor: Sanitary Pottery Corp. Reexport. Ind. FRANK. John (D) Frankoma Pottery. Box 739 Sapuipa. Ok!a. FRANKLIN. Earl W. (GI) 401 Broad St.. Port Allegany, Ta. ( Pittsburgh Corning Corp.) FRANKLIN. William S. (WI) 70-07 2M>: St.. (Ten Oaks. L. L. N. Y. iSperrv Ovroscope Co.) FRANKOMA POTTERY (John Frank) Box 789 Sapuipa. Okla. FRANTZ. Samuel G. (M) S. G. Franrz Co.. Inc. Box 1138. Trenton 6. N. J. FRANTZ, S. G., CO.. INC. fSamud G. Frantz) Box 1153 Trenton 6. N. J. FRANTZ. Thomas O. (W) 15 Echo Lane. Levittown, Pa. (Trenton Potteries Co.) FRANZ. Leo J. (S) Acme 3rick Co.. Malvern, Ark. FRASER. Orray T. (GI) 574 E. MichoiT Sc.. Columbus 6. Olii* (B. F. Drakenfeld & Co., Tnc.) FRASER. Waiter A. (G) 1320 E. 56th Sc.. Chicago 37, III. (Chicago Midway Laboratories) FRASER. W. R. (S) Fmer Brick Co.. Box 144 Dallas I. Texas FRAULINI. Feiix M. -R) South Shore. Xy. (Rlibrico Co.) FRAZTER. C. E. tCF) Frarier-Fimolex. Tne. 436 E. Bean St.. Washington. Pa. FRAZTER. C T. (G) 527 E. Bean St.. Washington. Pa. (Frazier-Simplex. Inc.) rRAZTER. T. Enrl (GFT) Fmrier.Simplex. Inc. 4.16 E. Rerm St.. Washington. Pa. FRAZIER-SIMPLEX. INC. (C. E. Frazier) 436 E. Beau St. Wii'htncron. 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. FREDERICK. C. L. (RI) 235 Meadowood Ln. Chagrin Falls. Ohio (N**rth 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 Gay Products Box 2178. Terminal .Annex Los Angeles 54, Calif. FREDERICKS. John D. -- II Herrick St.. E'.mira. N. Y. FREDRIKSSON. John :. (.R) Norton Co.. Box S7 Niagara Fails. 0"t.. Canada FREEMAN, Charles A. (RFI) Freeman Fire Br-.jk Co. Box 606. Canon City. Colo. FREEMAN. EJgar H. (W) Ncrris-Thermador Corp. 201:3 E. Valiev. Walnut. Cali: FREEMAN. John L. 4731 Wallingford Si. Pittsburgh 1 J. Pa. FREEMAN, Joseph (R) General Electric Co. 5193 Chestnut St.. Philadelphia 4. Pa. FRENCH. Myrtle M.. (DF) 123 N. Main St.. Alfred. N. V. FRENCH. Preston W. (GI) 1517 Union Ave.. BrackenriHge. Fa. (Pittsburgh Plate Glass Co.) FREY. E. F. (Mi DeVilbiss Co. Phillips & Detroit Ave. Toledo I. Ohio FREYDELL, Octavio Loceria Colombians Apartado Aereo 10-46 Medellin. Colombia FRIDDLE. Eduard W. 15 S. West St.. Raleigh. N. C. FR1EDBERG. Arthur L. (EF) University of Illinois 217 Ceramics Bldg., Urbana, III. FRIEDMAN. Lmii< K. (W) Homer I.aughlin Giina Co. 212 Fifth Ave.. New York. N. Y. FRIGIDAIRE DIV. GENERAL MOTORS CORP. (W. H. PfeirTer), Engineering Lab. Plant ~2, Davton 1, Ohio FRISK. Norman E. (R) 2946 Evansdale Ave.. Toledo 7. Ohio ' Owens-Illinois) FRITZ. Eari C. (W) 36 S. Main St.. Frankiinville. X Y. (Precision Ceramics. Inc.) FRITZ. E. H. (Wrl) 710 Wairu: St., Latrobe, ?a. (Stttpakorf Div.. Carborundum Co.) FROBERG. Laird (R) Owens-Ccming Fiberrlas Cor' Case Ave.. Newark. Ohio FROME. Howri! E. (M) United Fuei Gas Co., 3ox 1273 Giarleston 25. W. Va. FRONCZAK. E. T. (S) Richland Shale Brick Co.. Box 323 Mansneld. Ohio FROST. Leon J. (M) Box 133. Lewiston. N. Y. (Titanium Alloy Mfg. Div.. National Lead Co.) FRY. Herbert G. National Enamels. Ltd.. 55 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. III. 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 Standard Sanitary Corp. 40 W. 40th St.. New York 18. N Y FUJI I, Takashi Lrniversity of North Carolina Dept, of Chemistry. Chapel Hill. N. C. FULXER. Richard H. (El) 1408 Nicklin Ave., Piqua, Ohio (Pemco Corp.) Roster 37 FULLER. A. A. (X) 322 5. T'-vyckenhajn Dr. Sou:h Bcr.d, !nd. (Solltt Construction Co.. Inc.) FULLER. Donald H. (El) 335 S. Cook Ave., Trenton. X. J. (Tren:cn Fabricated Metal Co.) FULLER. L. R. (El) ?59 E. South St.. Frankfort, Ind. ( In^ratr.-Richardsor.. Inc.) FULLER. Richard B. (\VI) Universal Clay P.-cducta Co. 1323 First 5t., Sandusky, Ohio FULLER. Richard G. (\V) D. E. McNicol Porter/ CTarksfcur?. \\'. Va. FULLER, Wilfred (E) GcneraJ Steel Ware, Ltd. Adelaide it Xelson Sts. London. Ont., Canada FULMER, Raymond C. (WI) Stackpoie Carbon Co.. St. Marys. Pa. FULRATH, Richard M. (RI) University of California 264 Hearst Minin? Bldg. Berkeley 4, Calif. FUNK, Harry C. (G) Eagle-Picher Co.. Insulation Div. 3ox 290. Joplin, Mo. FUNKEY, John H. (G) Carr-Lovirey Glass Co. Box 356. Baltimore 3. Md. FUNXHOUSER CO. (R. L. Crouch) Box 312, Blue Ridge Summit, Pa. FUNNELL, John E. (MI) Southwest Research Institute Box 2296, San Antonio 6, Texas FURTH, John V. (E) 7542 Cabriilo Ave., La Jolla. Calif. (Solar Aircraft Co.) FUSSELL. Lynn E. (E) 3501 Tyrone Dr.. Louisville 13, Ky. (General Electric Co.) FU'iVA, Tasuku Tohoku L'niversity Dept, of .Metallurgy, Sendai. Japan G GAFFNEY, LeRoy J. 1104'W. Oregon St., Urbana, III. GAGIN. L. V. (G) 2516 Latonia Blvd., Toledo 6, Ohio (L-Q-F Glass Fibers Co.) GAILEY. Matthew D. 1500 Roanoke St.. Seattle 2. Wash. GAINER. Taylor M. (\V) 215 Steedley Dr.. Louisville 14. Ky. (American Radiator & Standard Sanitary Corp.) GAISER, R. Arthur (G) Ball Brothers Co., Inc.. Muncie, Ind. GAL3REATK. William W,, Jr. (RI) Babcock & Wilcox Co. 1201 Kemper St.. Lynchburg, Va. GALE. KENNETH (D) Mosaic Tile Co.. Zanesville. Ohio GALE. Richard H. (B) 133 Ridgewood Rd. West Hartford. Conn. (Combustion Engineering, Inc.) GALLUP, John (GI) Radio Corp. of America. Tube Div. 415 S. Fifth St.. Harrison, N. J. GALUSHA, Richard L. (W) Continental Ceramic Corp. Box 41, Biglerville, Pa. GALVIN, G. H.. Jr. (S) Rockford Brick & Tile Co. Rockiord. Iowa GALVIN. Richard J. (S) Sheffield Brick & Tile Co. Sheffield 1. Iowa GAMBLE. David L. (R) New Jersey Zinc. Co. of Pa. Research Dept.. Palmerton, Pa. GAMBLE. John D. (W) Bell & Gossett Co., 3200 Austin Ave. Morton Grove, III. Vol. no. No. 10 (1957) OAND'l . kriher: J.. Jr. 22b l (Jniario A*, c Niagr.ra Faili, X. V. GANjLE3. James J. <R) Ji>538 Stanford Ave. Fair view Park 2:>. Ohio t National Advisory Co'ur.i'.ttce for cronai:iics i G A N G U L *. Um apa:: Bengal Enamei Wcrks Ltd. ?. O. Bengal Enamel. Di>t. 24 I \irs'.;iu?i West Sengai. India GANPULE, A.nant X. Parshurara Pottery Works Co.p Ltd Mor.-i. Saurashtra. India GANTS. Sheldon B. (D) Ceramic Associates. Inc. 3650 Dyre Ave., New York 66, N. Y. GARBISCH. Norfcert S. (W) . Garco Products. Inc. Box 551, Butler, ?a. GARCIA-LEAL. Ramon (MI) Apartado Postal 1115 Monterrey N. L.. Mexico (Manufacturers Representative) GARCO PRODUCTS. INC. (Norber: S. Garbisch) Box 351 3utler, Pa. GARDEN. Henry R., Jr. (5; Box 508, Salem. Va. (Old Virginia Brick Co., Inc.) GARDNER. John 3.. Jr. (S) Hope Brick Works Box 155, Hope, Ark. GARDNER, Walter E. (S) Ladrillera Monterrey S. A. Apartado 560 Monterrey, N. L., Mexico GARDON, Robert (G) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. GARFIELD REFRACTORIES CO. (Kenneth A. Rugh) Eoiivar, Pa. GARLAND. C. K. ..3) Mason City Brick 3: Tile Co. Mason City, Iowa GARLICK. Oakley H. IM) Paul O. Abbe. Inc. 400 Center Ave.. Little Faiis, N. J. GARLICK. Philip L. (I) 1 Gladys St.. Cyriidene Johannesburg, South Africa (Primrose Brick Works) GARCNIIK, S. H. i S) 4211 3rooicview Dr.. Dallas, Texas (Crown Brick Mfg. Co.) GARRONI, Ricardo Rtia Padre Joao Manuel 975 Sao Paulo, Brazil (Ceramica Sanitaria Porcelite S/A) GARSTANG. .Alec King, Taudevin Sc Gregson Ltd. Grindlegate Works. Scotland St. She&eld 5, York, England GARTNER. Carl W. (W) General Color Sc Chemical Co., Inc. Box 7, Minerva, Ohio GARTNER. George C. (W) General Color Sc Chemical Co., Inc. Box 7, Minerva, Ohio GARVE. T. Walter (Sri) 69 W. Weisheimer Rd. Columbus 14. Ohio (Consulting Engineer) GARVERICX, R. A. (D) Huber-Warco 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 2321, Gemson College Sta. Gemson. S. G ' ;.\TES. Daniel W. (B[) .'ilJr* (':e>uettt Circle. S. E. Hun:*vil!e. Ala. iL. S. Army Orci., Redstone Arsenal'GATES. Louis E., Jr. (B) *247 Nnoulton dr Los Angelc** *5. Calil. Hughes Aircraft Co.) GATES. Majr E. (R) 773 Vista Grande A.ve. Los Altos. Calif. GATLIN, E. H. (Si Texas Cay Products Co. Eox T. Maiakoff, Texas GAL'DIANO. Victor M. (W) Sar.itarios E! Aguila S. A. .Apartado Postal 26308, Zona 14 Mexico. D. F. GAUNDER, Wilbur F. (G) Pittsburgh Plate Glass Co. Works No. 11, Mt. Vernon, Ohio GAUTSCH, Murray C. (MI) Metal 5c Thermit Corp. 415 E. ISlst St.. East Chicago. !r.d. GAVIN. G. P. (W) Kohler Co.. Kohler. Wise. GAWTHROP, Alfred (S) 385 Maplewood Rd., Lake Fores:. III. (Chicago 3rick 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. (RFI) 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. (EF) Pfauriler Co., 1000 West Ave. Rochester 3, N. Y. GELLER, R. F. (WFl) 5427 York Lane. Bethesda 14, Md. (National Bureau of Standards) GELSTKARP, Frederick (GF) 1134 Park St.. Tarentum 1, Pa. GEL7MAN, Gerald (BJ) 276 Winthrop Rd.. Teaneck, N. J. (Curtiss-Wright Corp.) GEM?. Robert W. (R) 500 Michell St.. Ridley Park, Pa. (Botneid 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 Sc 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. Qeveland. Ohio GENERAL ELECTRIC CO, i Specialty Electronic Components Dept., (N. F. Shofstall) 1811 LeMoyne Ave., Svracuse 3, N. Y. GENERAL GLASS INTERNATIONAL. INC (Victor A. Plumbo) 5 S. Virginia Ave. Atlantic City, N. J. GENERAL REFRACTORIES CO. (Russell P. Heuer) 1520 Locust St. Philadelphia 2. Pa. GENERAL SHALE PRODUCTS CORP. (R. B. Hockaday), Kingsport, Tenn. Roster 30  ENTRY. Raymond (C) Alexander H. Kerr <i Co., inc. Box 2003. Santa Ana, Calif. ENTSCH. A. Pa^e i Ml United Clay Mines Corp. 101 Oakland St., Trenton. N. J. ENTSCH, Bernhard F. t^M) United Clay Mines Corp. 101 Oakland St., Trenton. N. J. EORGE. W. R. (W) Canonsburg Pottery Co. Canonsburg. Pa. EORGIA-CAROLINA BRICK 5c TILE CO. (J. C. Hagler. Jr.) 10 Campbell Bid?., Augu-m. Gn. EORGIA KAOLIN CO. (Robert H. 3ollinger) 4 J A N. Broad Sc.. Elizabeth J. N. J. EPHART. Charles D. (S) Cedarhurst. Holly Springs. Mias. (Holly Springs Brick 2c Tile Co., Inc.) ERBER. Oscar L. (W) Gerber Plumbing Fixture Corp. 232 N. Clark St., Chicago 1. 111. ZRCAR. Francisco J. S. A. Cristalerias Del Uruguay Comercio N91, Montevideo. Unigunv iRSTENSCHLAGER. V.. Jr. (R) Babcock 3c Wilcox Co.. liox 923 Augu>ta. Ga. IRSTER. C. W. (WI) Box 614, East Liverpool. Ohio (Patterson Foundry & Machine G.) iTHIN. H. Wynn (R) H. K. Porter Co., Inc., Retr. Div. 2500 First National Bank BMg. Pittsburgh 22. Pa. CTTO. Allan (BJI) Pratt d: Whitney Aircraft Cane! Project. Middletown, Conn. IERING. Leonard G. (Gr) Preston Laboratories 3o\ I4Q. Butler. Pa. ACCMELLI. Dcmenico Soc. It. Rerrattari Marghera Alton aria Via Industrie 52 Cas. Post. 303 Marghera. V'emce. Italy ANG. Yu Kim Choan Huat Co. Inc. Ill jose Rizal St.. Mandaiuyong R:zal Province. Philippines 33, Mary J. American Ceramic Society 4055 X. High St.. Columbus 14, Ghio 3BONS. J. Arthur (S) Elgin Standard Brick Mfg. Co. Box 54d. Elgin. Texas IBS. Melvin B. (E) Inland Steel Co.. Quality Control Dept. East Chicago. Ind. IBS. William C. (R) \V\ C. Gibbs Co. 4Q1 Brown Marx Bldg. Birmingham. Ala. :SON, Frank B. (E) 9 Terrace Circle Great Neck. L. I.. N. Y. (Seaporcel Metals. Inc.) SON, R. L. (WI) 1314 Wilmington Ave. New Castle, Pa. (Sbenango China, Inc.) SON. Robert C. (E) Parker Rust Proof Co. 2177 E. Milwaukee Ave. Detroit 11. Micb. SEKE. Frans JCockums Emaljerverk Ronnehv. Sweden SER. Ralph H.. Jr. (E) Rheem Manufacturing Co. 4361 Firestone Blvd. South Gate. Calif. SS. Edward A. (I) Box 903. Alfred, N. Y. . David (D) 122 McCall St.; Bennington, Vt. (Cooperative Design) .. :?G. No. 10 (1057) GILBERT. Ark G. * 5) J* :itc R-.. cat !i C".. Plymouth. Ohio (ill.BERT. Frank C. 2'* Ave. Middletown. N. Y GILBERT, jeorge W. (G`i Ouer.>-Corning Fibergias Corp. 593 Mii:iv.*u Ave.. New York 22. N. Y. GII.C.S. Ju:::es n . Jr. (Eli !' i 1 Bre:: S: . A;.;. J I\t:s.n-.rgn i. Pa. (O lictr.rr.el Co.) GILES. Raymond ' V.') M2 McKeever St., Crcoksvtlle. Ohio (Crooksv'Ue China Co.) GILES. Thomas M. 1674 Berkshire Rd.. Columbus, Ohio GILFILLAN. 3. T. r R Climax Fire Brick Co., Climax, Pa. GILFILLAN. J. M. (Wi New Jersey Porcelain Co. Box 903. Trenton 5, N. J. GILL. John H. ' (R) Gill Gay Pot Co., Muiicie. Ind. GILL. Joseph \V (MI) 6*5 Van Burcu St.. Dvs Plaines. III. (U. S G'psum Co.) GILL. LaVerr.e N. (WI) American Radiator 2c Standard Sanitary Corp.. 3ox 263 Torrance. Calif. GILL. Leo L. ( R) HartaMon-Walker Reirnctorie.s C>. 1300 Farmers 3ank Bldg. Pittsburgh 22. Pa. GILL. W. T.. Jr. (S) Texas 3rick Co.. Box 510 Brownwood. Texas GILLESPIE. H. M. (M) 223 3roadwav. New York 7, N. Y. (HI.LIARD. Joseph W. (D) Hampton Institute Box M. Hampton. Va. GILLINDER BROTHERS. INC. (J. Fletcher Gillinder) Port Jervis. N. Y, GILLINDER. J. Fletcher (G) Gillinder Brothers, Inc. Port Jervis. N. Y. GILLON. Paul N. fB) Carborundum Co.. Library 1-2 Niagara Fails. N. Y. GILLULY. Wi'iHam F. (G*k Pittsburgh-Coming Corp. Box 72. Seaalia. Mo. GILTNER. Penrdic: C. (5) Foley 2c Grove. Bensenville. 111. (Lindberg Engineering Co.) GIMSON. Joseph F. Worcester Royal Porcelain Royal porcelain Works Worcester, England Co., Ltd. GINGOLD. Jacob 6 rue de Fontenay. P'.essis-Robinson Paris. Seine. France GIRALDEZ. Emiiio Ceramics Nacional C. A. Box A-10. Riobamoa. Ecuador GIRARD. R. T. 'E General Electric Co. Bldg. 253. 2nd FI. One River Rd.. Schenectady. N. Y. GITTER. Alice Josephine (MFI) J9 W. 70th. New York 23. N. Y (Whittaker. Clark 3c Daniels. Tnc.) GITZEN. Walter H. (R) 1 Wesley Dr.. Belleville. 111. (Aluminum Co. of America) GLABAU. Ernest R. (G) 29 College Rd.. Burlington, Mass. (Ravtheon Manufacturing Co.) GLADDING. Albert C. (S) Gladding Bros. Mfg. Co. Third 3t Keyes St.. San Jo*e. Calif. GLADDING. McBEAN * CO. (S. V. Sagir.or) 2901 Los FeJiz Blvd. Los Angeles 39, Calit. GLADNEY. Kurt (G) FibergJas Canada Ltd.. Box H Sarnia. Ont.. Canada ri.ASLK. Frank W. ; ID A.!I*v i'rc.'i^ion C.i'itiugs Co. .Mi 5 W. 1:0th it . Oc-. eland II. Oh:u jLAiER, John H. '.G Umscier.ce Ir.c. M2 Crcokrd 3 i 1! e t Kd . Hat bora. Pa. GI.ASSER. Fred P. (3 A Penr.>> ivar.ia State Uiiivcrriry p:.S Mineral Sciences Lii-M. University Park. Pa. CLATTER. Jake (.B) ID-iJ Prospect Rd.. I'itt.^burgli 27. I'a. ( Wesiinghouse Electric Corp.) t'.LATZ. Alfred C. (R) .h)J Merrill St.. Clearheiii. Pa. (Curtiss*V`right Corp.) GLAZE. Francis \V. (GFI) 4111 Hamilton St., Hyattsville. Mii. ( National Bureau of Standards) GLEN-GERY SHALE BRICK CORP. (Gordon E. Lewis) Box 86. Shiilingron, ?a. GLENSHAW GLASS CO.. INC. (George W. Meyer) Glenshaw. Pa. GLOBE-UNION INC. (J. Fletcher Harper) 900 E. Keefe Ave., Milwaukee l. Wise. GLOS33REXNER. D. I. (M> R.R. 12. Box 261. Indianapolis, ind. (Kaolin. Inc.) GLOSTEX CHEMICALS. INC. (C. G. Wurtsbauga) 3055 Bancini Blvd. Los Angeles 23, Calif. GLOWACXI. George V. (W) 63 Linden Ave.. Bloomfield, N. J. (Radio Corp. of America) GLYNN. T. W. (G) 1505 Fairidgc Dr.. Kingsport, Tenn. i Blue Ridge Glass Corp.) GODBOLD. Jack W. (W) 1303 Bluebird Ln., Garland. Texas f Ferro Corp.) GODDARD. W. T. (W) Box 428. Hamilton. 0't.. Canada (Canadian Porcelain Co.. Ltd.) GODEJAHN. Gordon C.. Jr. (G' i0226 Woodworth St., Apt. 3 Inglewood. Calif. ( Hughes Products Co.) GODFREY. T. Gordon. Jr. Box 3434. Clemson College Sta. Clemson. S. C. GODOY. E. A.. & CO.. INC. (Emilio A. Godoy) 25 Broadway New York 4. N. Y. GODOY. Emilio A. fR) E. A. Godov 2t Co.. Inc.. 25 Broadway New York i, N. Y. GDETCHIUS. Don R. (EF) Ferro Corp. 4150 E. 56th St.. Cleveland. Ohio GOIN. Fred L. (SI) Gladding. Me Bean 2c Co., Lincoin. Calif. GOLDING-KEENE CO. ( H. B. Du3ois) Box 456. Keene. N. H. GOLDSMITH. Julian R. (B) University of Chicago Dent, of Geology. Chicago 37. 111. GOLDSTEIN. Marcy B. (SJ) 6 Gienfair Rd., Fair Lawn. N. J. (United States Army Chemical Corps.) GOLDSTEIN. Martin (G) Mellon Institute. Pittsburgh 13. Pa. GOLIBER, Edward W. (B) 2602 N. Connecticut. Royal Oak, Mich* (General Electric Co.) GOMEZ. Salvador Odriorola (R) Fahrica de Ladrillos Industrials >* Refractarios. S. A.. Apartado 390 Monterrey, N. L.. Mexico GONDER. Lawton (W) Gender Ceramic Arts. Inc. Box 448. Zanesville, Ohio GONZALES. Narriso (M) Eagle Pencil Co. 710 E. 14th St.. New York 9, N\ Y. GOODFELLOW. Ted M. (W) Tektronix. Tnc. Box S31. Portland 7, Ore. Roster 41 JOODHUE, R. X. (M) Stauffer Chemical Co. 325 5. Main St., Akron 3. Ohio lOODMAN', Gilbert (3) General Electric Research Lab. Box 1083. Schenectadv, N. Y. lOODMAN, James S. (E) American Radiator 2c Standard Sanitary Corp., S3-1 E. Broadway Louisville 4, Ky. lOODMAN. Philip iG) Corning Glass Works. Corning, X. Y. IOODRICH. Hobert R. (WFI) 1622 Santa Barbara Ave. Glendale 3, Calif. (Gladding, McBean 2c Co.) SOODWIN. Robert L. (S) R. R. 2. Box 106. Mineral Wells, Texas (.Mineral Wells Clay Products, Inc.) JOODWIN. William Jarrard (B) 3464 Wallace Dr., Grand Island. N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) JORDON. 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.) JORNALL. Henry A. (MI) 4357 Ardmore Rd., S. Euclid Cleveland 21. Ohio (Allied Engr. Div., Ferro Corp.) IORSUCH, Charles A. (M) Ayers Mineral Co.. S06 Market St. Zanesville. Ohio lORT, Walter A. <\V) Twin 3ay Village Bolton Landing. N. Y. (Amhold Ceramics. Inc.) iOSS. Bruce R. 11 Hamilton St., Weedsport, N. Y. 10SZ70NYI, George Lozadur, Av. Mayo 981 Buenos Aires, Argentina iOTTO. Mrs. B. D. A. L. Curtis u Co., Westmoor Works London Rd. Chatteris. Cambs. England 10UDGE. Monson F. (M) Mines Branch. 40 Lydia St. Ottawa. Ont., Canada (Dept. Mines & Technical Surveys) IOULD, Anita H. (GJ) 320 E. Eighth Ave.. Tarentum. Pa. (Pittsburgh Plate Glass Co.) lOULD. Robert E. (WFI) 86 Cook Rd.. East Aurora, N. Y. (Buffalo China, Inc.) iOWER. Irving W. (R) 516 W. Boulevard. Mexico, Mo. (Mexico Refractories Co.) RABE. William F. (S) Grabe Brick Co. Box 5631, Tucson, Ariz. RACE, Holt B. (S) Isenhour Brick 2c Tile Co. Box 1249. Salisbury. N. C. 1RAFF, James B. (S) Gratf-Kittanning Clay Prods. Co. Worthington. Pa. (RAFF-KITTANNING CLAY PRODUCTS CO. (James B. Gratf) Worthington, Pa. , -RAFF, William A. (G) Glass Technology Lab. General Electric Co. 1133 E. 152nd St., Cleveland 10, Ohio RAHAM. Harold A. (B) 1169 W. McKinley, Sunnyvale, Calif. (Sylvania Electric Products, Inc.) -RAHAM. Henry C. 13 N. Erie St.. Mayville. N. Y. RAHAM. John Warren (R) 343 Cascade Rd.. Cincinnati 40, Ohio (General Electric Co.) 'ol. 30. No. 10 (1957) 'RANT. John F. R 1 ) Box 262. Corning. Y. (Corning Glas> W.rksj GRAUER. Oscar H. (.') Fi>chcr 2: Porter Co.. Katboro. Pa. GRAVES, George A., Tr. Box 7S7. Alfred. N. Y. GRAY. Thomas J. (3) Box 314. Alfred. N. Y. (State University of New York. College of Ceramics) GRAY, W. Ashley, Jr. (X) Pioneer Silica Products Co. 3615 Olive St.. St. Louis 3. Mo. GRAY, William T. (G) Leeds 2t Northrup Co. 4901 Stenton Ave.. Philadelphia 44, Pn GREAT LAKES FOUNDRY SAND CO. (C. L. Cruikshank) 720 United Artists Bldg. Detroit 26. Mich. GREEN. A. P.. FIRE 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 737, Alfred, N. Y. GREEN. D. T. (S) Milton Brick Co., Ltd.. Box 554 Milton, One., Canada GREEN, John R. (MI) Minneapolis-Hoceywell Reg. Co. Wayne 2t Windrim Aves. Philadelphia 44, Pa. GREEN, Robert L. (\V) Lenox, Inc., Meade St. Trenton, N. J. GREEN. R. S. (BI) 13 S. Jefferson Rd.. Mexico. Mo. (A. P. Green Fire Brick Co.) GREENE. Charles F. (S) Bums Brick Co.. Macon. Ga. GREENE. Charles H. (GF) Box 304. Alfred. N. Y. (State University of New York. College of Ceramics) GREENE, J. 7. (GF) 1043 New Pear, Vineiand. N. J. (Kimble Glass Co.) GREENHOUSE, Harcid M. ;B) Aladdin Radio Industries Nashville 2. Term. GREENLEE. Charles A. (R) Basic. Inc. 345 Hanna Bldg.. Cleveland 15. Ohio GREENWOOD. Richard W. (W) General Electric Co. 1811 LeMovnc Ave.. Svracuse. N. Y. CREGER, Herbert H. (W) Trans-Tech.. Inc. Box 103. Rockville. Md. GREGO. Peter (G) 22 Roosevelt St., Corning, N. Y. (Corning Glass Works) GREGORIUS. J. S. (GFI) Pittsburgh Plate Glass Co. One Gateway Center. Pittsburgh 22, Pa. GRENIER. Lee (S) Magnet Cove Barium Corp.. Box 332 Greybull, Wyo. GRESHAM. Lucius C.t Jr. (S) Acme Brick Co.. Box 308 Waskora, Texas GRETHER, Charles M. (W) D. M. Steward Manufacturing Co. E. 36th St., Chattanooga, Tenn. GREWER, Douglas (M) Harry W. Smith. Inc. 41 E. 42nd St.. New York 17. N. Y. GRIFFIN, Thomas W. "La Feuillee" Trelex Vaud. Switzerland (Hartford Empire Div., Emhart Mfg. Co.) GRIFFITH. J. Scott (R) 5524 W. Adams St.. Chicago 44, III. (Armour Research Foundation) 1R ! ! i* l T H . ! .aw rune c ) . Jr 1 < 1 2514 Highland Ave., Sedalia. Mo. ( Pittsburgh-Coming Corp.) GRIFFITHS. Norman Nonportte ?:. Ltd. 392-296 Bur-xoo.1 Rd. Hawthorn E 2. Victoria. Australia < > R ! GG. Arthur 1 R } Bv\ Canon City. Coio. (Freeman Fire Brick Co.) GRICG. ?aci E. (HI) 323 N. Dover Ave., La Grange Park, :::. (Association of American Railroads) GRIM. Ralph E. (X) Dept, of Geology, Univ. of Illinois Urbana. 111. GROB3. F. S. (R) G. F. Sterne 2c Sons, Ltd. 125 Bruce St.. Brantford, Ont., Canada GROOME. Garland L. (R) 931 Jeffrey St.. Baltimore 25, Md. (Karbison-Walker Refractories Co.) GROSS. Harold L (M) Santa .Anita Potteries 3117 San Fernando Rd. Los Angeies 65. Calif. v GROTHAUS. Joseph V. (R- 2:52 E. 76th St., Chicago 49, 111. (John Mohr Zl Sons) GROVE. Robert L. (WI) 26 Rockland St. South Dartmouth. Mass. (Cornell-Dubilier Elec. Corp.) GRUNER, Max N. (R) Harbison-Walker Refractories Co. 1325 Ambassador Bldg., Sr. Louis 1, Mo. GRUVER. Robert M. (G) 1160 Oneida St.. State College. ?a. (Linden Labs.. Inc.) GSCHWIND. Jean F. (M) J. O. Ross Engineering Cn. 44 Madison Ave.. New York 22. X. Y. OUERCI. Carl F. (W) 1444 Westgate Hr.. lethlehem. Fa. (International Business Machines) GUGELSR. Albert L. (EJ) 3897 W. 33rd St., Cleveland 9. Ohio (Ferro Carp.) GUIMARAES. Hciio femagna Caixa Postal 298 Belo Horizonte-MG. 3razil (Magnesita S. A.) GULDEN. Jules R. 1 D) Syracuse China Co., Syracuse . N Y. GULICX. Chester (M) Kemucky-Tennessee Clay Co., frc. Mayheid, Xy. GUNTHER. F. W. (S) 349 Baker Ave., N. W. New Philadelphia. Ohio (Universal Sewer Pipe Corp.) GUNZENHAUSER, Adoiph (M) 69-70 113th St. Forest Hills 75. L. I., N. Y. (Transisoia. Inc.) GUPTA. Subodh C. (G) Box 101. Port Jervis. N. Y. (Gillinrier 3ros., Inc.) GURR, Wilhelm Porzellan-Manufaktur W. Haldenwanger 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.) GUZMAN. Hector (G) 2944 Kendale Ave.. Apt. 103 Toledo, Ohio (Owens-Illinois) GWYN. James D. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio GYWE. Mg Lu Box 216, Alfred. N. Y. Roster 43 H CK, Walter L. (W) Western Gold & Platinum Co. 5-5 Harbor Blvd., Beimont, Caiir. CKETT. James \V. (C) 3614 Kenwood Elvd., Toledo 6, Ohio (Owens-Illinois) CKLER. W. C (BI> North Carolina State College Dept, of Mineral Industries Raleigh. N. C. DLEY, Robert L. (E) General Electric Co. Major Appliance Div., AP 5. Rm. 249 Appliance Pic., Louisville 1, Ky. ECKER. Arthur J.. Jr. (R) 179J Sharon Dr., Concord. CaJif. (Gladding, McBean A Co.) EGSR POTTERIES, INC. (Joseph F. Estes) 7 Maiden Lane Dundee. 111. ERTLING, Gene H. (WJI) 1016 16th St.. Rockford. 111. < lpsen Ceramics. Inc.) FNER. Harold C. iG) Bausch & Lomb Optical Co. Chemical Research Lab. Rochester 2. N. Y. FNER. Robert H., Jr. (E) 175 N. Linden Rd.. Mansfield. Ohio ( Ingersod-Humphrycs Div.. 8>rg Warner Corp.i SAN. M. A. (MI) 5410 Sycamore St. Kansas City 29. Mo. (Westinghouse Electric Corp.) 3AR. Donald (MFI) Box 223. Zanesville. Ohio (Donald Hagar Ceramic Materials) }3ERG. Carl E. (M) Kentucky-Tennessee Clay Co.. Inc. Box 394, M:. Union Sta. Alliance. Ohio iEDORN. A. J. E. 'R> General Abrasive Co.. Inc. Drawer D. Bridge Sta. Niagara Fails. N. Y. IEDORN, E. C. (G) Owens-Illinois. Technical Center 1700 N. Westwood. Toledo 7, Ohio iENAUZR. Carl J. (C) R.R. 1. Sarver. Pa. (Pittsburgh Plate Glass Co.) IGLUND. Erik (M) Kanthal Corp.. Amelia PI. Stamford. Conn. ILER. J. C. Jr. (S) Georgia-Carolina Brick 3: Tile Co. 10 Campl>eil Bldg., Augusta. Ga. ;NER. Fred F. (G) Phoenix Glass Co.. Monaca. ?a. ;Y. Henry E. (G) Corning Glass Works Laboratory Corning. N. Y. IN. William ?. (G) 30 Norwood Ave. North Plainrieid. N. J. (Johns-Manville Corp.) INER. Clarence H. (GF) National Bureau of Standards Washington 25. D. C. DEN. Frank A. (B) 1049 Valley Forge Dr. Sunnyvale. Calif. 'Stanford Research Institute) DY, Norman L. (W) American Encaustic Tiling Co. 1000 Cannon Ave.. LansdaJc. Pa. EY. Dwight (R) Vmerican Clay Forming Co. 3ox 636. Tyler. Texas L, Charles A. L R. 2. Bloomington, III. L CHINA CO. (John T. Hall) Last Liverpool, Ohio L. Donald H. (EJ) 'fatidler Co. 000 West Ave., Rochester J, N. Y. . Uf, No. 10 (1957) HALL. Douglas E. 2340 X. Calvert St.. Baltimore 13. Mil. HALL. E. B. MS Bird A Co. Ltd.. Research Dep:. Chartered Bank 3ld;s. Calcutta. India HALL, Everson ;W) Park Wav Ext.. East Liverpool. Ohio (Hall China Co.) HALL. F. P. iWF) Onondaga Pottery Co.. Electronic Div. Syracuse I. N. Y. HALL, James L. (W) 242 Oregon Ave.. Palo Alto, Calif. (Thermo-Materials Inc.) HALL. John T. (W) HaJl China Co., East Liverpool, Ohio HALL. Morris P. (S) Alton Brick Co.. Bo\ 25 Maryland Heights. Mo. HALL. Robert L. 124 Jersey Lane. C'emson. S. C. HALL. Warren A. (S) North State Pyrophyllite Co.. Inc. Box 7247, Greensboro. N. C. HALLBERG. Richard C. (W) 226 Watson Ave.. Fostoria. Ohio (Electric Auto-Lite Co., Spark Plug Div.) HALLER. Percy 319 Carterknowle Rd., ShefKeld 11, England (John G. Stein A 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. New Castle. Pa. HALLOIN, William G. (G) 1218 Broadview Blvd. Brackenridge. Pa. (Pittsburgh Plate Glass Co.) HALLSE. Robert L. ( BJ) University of Illinois Dept, of Ceramic Engineering Urbana. III. HALM, Louise Union Francatse des Prcduits Reiractaires. 15. Rue de Milan Paris 9e. France HALVONIK. Frank V. (C) Box 2. Newry Pa. I O. M. Bare Co.) HAM AKER. M. L. (R) Columbia Fire 3riek Co. 612. First National Bank Bldg. Canton 2. Ohio HAMER. Donald (W) 426 Elmwood. Evanston. 111. (Radio Kemetal Industries) HAMILTON. Edgar H. (GI) National Bureau of Standards Glass Section, Washington 25. D. C. HAMILTON. Howard G. 251 Tenth St. N. W.. Apt. 104 Atlanta. Ga. HAMILTON. J. C. fG) 2422 Chestnut Hill Rd.. Toledo 6, Ohio (Owens-Illinois) HAMILTON, Noble E. (M) 53 Benjamin Rd.. Belmont 78. Mass. (Consultant) HAMILTON. Robert (M) United States Gypsum Co. 200 W. Adams St., Chicago 6, III. HAMILTON, W. M. (E) Crane Co., Chattanooga Div. 33rd and Alton Park Blvd. Chattanooga 1. Tenn. HAM ME, 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 24?v Owmed's I't. Rd. Smith Hurstviiie. N. S. W., Australia ! R Fc*v. !cr LtdG HAMMER. R. (I) Box 5212. Haifa. Israel 1 Paiceramic Ltd.) HAMMOND. Beatrice L. (R) Technical Research Group 17 Union Square. W. New York j, N. Y. HAMMOND LEAD PRODUCTS. INC (William ?. Wiike, III) 5231 Hohman Ave., Box 912 Hammond. Ind. HAMPEL. Richard J. (WJ) 774 Dallas Ave. San Bernardino. Calif. (Crane-Pacific Co.) HANCOCK BRICK A TILE CO. (James L. Child. Jr.) Box 450 Findlay, Ohio HAND, Thomas (R) Corhart Refractories Co. 1600 W. Lee St . Louisville 10. Ky. HAN DEN. Jack (3J) 20 Elmorp Ave. Elizabeth. N. J. (Radio of Americaj HANDWERX. Joseph H. (B) 915 N. Prairie Ave.. Joliet, III. (Argonne National Laboratory) HAXKiNS. Wiiliam E.. Jr. (S> Dalton Brick & Tile Corp. Box 22J. Dalton. Ga. HANKS. Charles F,, Jr. (M) Kentucky-Tennessee Clay Co., Inc. Box 394. Mt. Union Sta. Alliance. Ohio HANLEY CO. (John M. Dickey, Jr.) Summerville. Pa. HANN. Douglas G. Ryton House Shifnal. Shropshire. England (British Heat Resisting Glass Co.) HANNA. H. H. iGI) 203 Bailey Rd., Crystal City, Mo. ( Pittsburgh Plate Glass Co.) HANNA. Ralph E. (\VI) Square D Co., Molded Insulation Div. Peru, Ind. HANNA. Richard (WJ) Hartford. N. Y. (General Electric Co.) HAXXEMAX. Morton E. (G) Elmore. Ohio (Woodviile Lime Products Co.) HANNON. Richard C. (MI) 1 DCS Franklin Rd., Salem, Ohio (R. T. Vanderbilt Co.. Inc.) HANOVIA CHEMICAL A MFG. CO. (R. T. Hopper; One W. Central Ave. East Newark. X. J. HANSARD. W. Carey (WI) 2345 Cheshire 3ridge Rd., N. E. Atlanta. Ga. (Georgia Institute of Technology) HANSELL. U. G. (W) Honeywell Refearch Center 500 Washington Ave., S. Hopkins, Minn. HANSEN. I. A. (W) Fords Porcelain Works Penh Amboy, N. J. HANSEN. J. E. (EFI) Ferro Corp., 5309 S. District Blvd. Los Angeles 22. CaJif. HANSEN, John H. (G) Libbey-0 wens-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 Roster 43 HANSEN, Waldemar C. {R^ Universal Atlas Cement Co. Gary (Burlington Station'!, I mi. HANSON. Hans R. (R'l J000- \V. Ten Miic Rd. Farmington, R.R., Mich. (Hanson Co.) HANSON. James VV. ( 5 > Mineral Wells Clay Products, Inc. 3962 Edgehill Rd.. Fort Worth. Texas HARBER7. Carl J. (W) Harshaw Chemical Co., 1945 E. 9Tth St. Cleveland 6. Ohio HARBIN, Hugh P. 134 Jersey Ln., Clemson, S. C. harbison-walker REFRACTORIES CO. (C. A. Brashares) 1300 Farmers Bank Bldg. . Pittsburgh 22, Pa. HARCOURT. Edward L. (M) North American Mfg. Co. 3810 West Sc., Cincinnati 27, Ohio HARDER. Charles M. (DF) State University of New York College of Ceramics, Alfred. N. Y. HARDING, John Roy "Greystoke." Chesworth Close Horsham; Sussex, England (Sussex & Dorking United Brick Co., Ltd.) HARDINGE CO., INC. (Karlowe Hardinge) York, Pa. HARDINGE. Harlowe (M) Hardinge Co., Inc., York, Pa. HARDY, Ronald G. (SI) Onondaga Brick Corp., Warners, N. Y. HARES. George 3. (G) 15 Roosevelt St., Corning, N. Y. (Corning Glass Works) HARGREAVES, John 33 Ellers Ave. Bessacarr, Doncaster, England (United Steel Co.. Ltd.) HARGREAVES MILL LTD. (A. W. Cook) Botteslow Sc. Hanley, Stoke-on-Trent. England BARKER POTTERY CO. (Robert E. Boyce) East Liverpool, Ohio HARMAN, C. G. (WF) Horizons. Inc.. 2391 E. 79th St. Cleveland 4, Ohio HARMONY. M. E. (G) Silicones Div.. Union Carbide Corp. 644 Oliver 2'.dg.. Mellon Square Pittsburgh 22, Pa. HARNISH. John D.. Jr. (WI) Weatinghouse Electric Corp. * Derry, Pa. HARNISH. Mark E. (R) | 2111 Sierra Rd. Plymouth Meeting, Pa. (E. J. Lavino dc Co.) ftARPER. J. Fletcher (W) i Globe-Union Inc., 900 E. Keefe Ave Milwaukee 1, Wise. tlARPER, Roderick L. (M) Harper Electric Furnace Corp. 39 River St., Buffalo 2, N. Y. IARPER. Wallace T. (B) Box 526, Acworth. Ga. (Lockheed Aircraft Corp.) !ARR. W. J. (GI) 1711 Brainard Rd. Lyndhurst. Cleveland 24. Ohio (Harshaw Chemical Co.) HARRELL. George O. (S) i North Carolina State College Mineral Industries Dept. Raleigh. N. C. Barrington. Roy v. (c> One Oakwood Dr.. Corning, N. Y. (Corning' Glass Works) KARRIS CLAY CO. (Scroop W. Enloe. Jr.) Spruce Pine, N. C. KARRIS, Donald M. Fairport Rd.. East Rochester, N. Y. jroL. 36, No. 10 (1957) HAk.RIS. Henry M. (R) -1 1-t 4Jr.d S.. Seattle 18. Wash. ( U. S. Bureau oi Mines) HARRIS. James . (SI 1635 S. Sherman. Denver. Coio. (Robinson Br-.ck 4 Tile Co.) HARRIS. Jesse R. J01 E. Third Ave., Ritcviile, Wash. HARRIS. Joe I EJ) 1175 Fayetteville RJ., 5. E. Atlanta 16, Ca. (Georgia Institute of Technology) HARRIS. Ransom 5.. Sr. (GJI) 124 Brooks Ave., Raleigh. X. C. (U. S. Army) HARRISON. Don E. (3) 15998 Nelacrest Rd.. Apt. 9 Cleveland 12. Ohio (General Electric Co.) HARRISON, Harold C. (W) 4545 Norwin Rd.. Pittsburgh J6. Pa. (Weatinghouse Electric Corp.) HARRISON, Jack L. (S) Indiana Geological Survey Indiana University, Bloomington, Ind. HARRISON. William B. (31) 26J5 N. 68th St.. Wauwatosa 13. Wise. ,(Allis-Chaimers Mfg. Co.) HARRISON, W. N. (EF) National Bureau oi Standards Ind. Bldg., Enameled .Metals Sect. Conn. Ave. 4 Van Ness St.v 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. (CD 908 Lafayette Court. Marion. Ind. (Radio Corp. of America) HARTFORD. Thomas J. (W) 2733 Dorcsta Rd.. San Marino. Calif. (Gladding, Mc3ean 4 Co.) HARTLEY, Alva G. H. Downing 4 Co. Ltd. Brampton Hill Newcastle, Staffs. England HARTMAN. F. Henry (Gi Stouifviile. Ont.. Canada (Crystal Glass 4 Plastics Ltd.) HARTSHORN. T. D. (El) A. J. Lindemann 4 Hoverson Co. 601 W. Cleveland Ave. Milwaukee 15. Wise. HARTWIG. Frederick J.. Jr. (RI) Babcock 4 Wilcox Co., Box 83S 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-Waiker Refractories Co.) HARVEY. E. M. (R) North State Pyropnyllite Co.. Inc. Box 7247. Greensboro. N. C. HARVEY, Malcolm R. 80 E. Center St.. Kaysville, Utah HASKO, Stephen (WI) IS 10 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 4 Physical Lab. 4IS S. Fifth St.. Harrison, N. J. HASTINGS, Russell A. (II) Lindberg Industrial Corp. 2J2I W. Hubbard St.. Chicago 12, IIL HATCH. Robert A. (Bi 4 155 N. 3el!eview A1, c. St. Paul ). M:nn. (Minnesota Mining 4 M:g. Co. i HATHAWAV. A. J. tRi 3721 Pershing Ave. Niagara Fails. N. Y. (Titanium .Alloy Mfg, Div , National Lead Co.) HATHAWAY, Isaac S. (W) 1513 Tuttle Ave., Montgomery, Ala. (Alabama State College'' HATHAWAY. Mrs. U. G. (W) Alabama State College Montgomery, Ala. HAUBEIN. 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.) HAURA. Bruce 223 Tom Hur.ter Rd.. Fort Lee. N. J. HAUSER. Richard E. (I) 351 Moselle St.. Buffalo 11, N. Y. HAUSLER. Eiwood B. Box 737, 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) 346 N. Euclid Ave.. Oak Park, HI. (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 Weils. Texas (Texeramics Co.) HAWK. Elwin A. (M) Hawk Laboratories. Ir.c.. R.R. 1 East Rochester. Ohio HAWKINS, Robert J. (SI) 20 Sunnyside P!.. Hamburg. N. Y. (3unaio Brick Corp.) HAWKS. Ralph L. (WI) 525 W. Maxwell. Lakeland. Fla. (Florida Tile Industries. Inc.) HAWKS. William L. (R) 1914 N. E. 47th Ave., Portland 13. O't. (Collett 3ros.. Inc.) HAWS REFRACTORIES CO. (E. E. Slick. Jr.) 407 Mam St. 'ohnstown. Pa. HAY, John (B) Norton Co., Research Lab. Worcester 5. 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 4 Ninth Barberton, Ohio HEATLEY. Sidney M. (R) Babcock 4 Wilcox Co. 10S S. LaSalle St., Chicago 3. IIL HEAVILL. John C (E) 42 Walnut SL, Pittsburgh 5, Pa. (Vitro Manufacturing Co.) HECK. Frank G. (R) E. J. Lavino 4 Co.. 3 Penn Center Plaza Philadelphia 2, Pa. Roster 47 HEDUELL. James V. (RI) 53-B Decatur China Lake, Calif. ( LT. S. Nava! Orcinar.ee Test Sea.) HEODEN, Walter A. (Rj Batteiic Memorial Institute 505 King A.e.. Columbus 1, Ohio .HEDGES. Lee M. (R) R.R. 4, Cedar Grove Rd. Somerville. N. J. i Johns - ManviMe Corp.) HEDGES, Philip E. Box 122. Alfred. N. V. HEDGPETH. James A. (S) Borden Brick it Tile Co., Box 1771 Durham. N. C. HEDQUIST, Alfred J. (W) Apurrado Postal 525 Guadalajara. Jaiisco. Mexico (Loza Fina S. A.) HEEBXER. lohn C. (RI) 1431 1`orbes Si. North Tonawanda. N. V. (Carborundum Co.) HEFTI, Kranz Zurcfter Ziegeleien. Postfach 357 Zurich 1. Switzerland HEIDTMAN. Clarence F. (G) National Lime it Stone Co. First National 3ank Bldg. Findlay,i Ohio HEILICH. Raymond P. (S) 755 Stelzer Rd. Box 214. Columbus 19, Ohio (Claycraft Co.) HEILIGMAN, H. A. (RFI) E. J. Lavino it Co.. Box 29 Norristown, Pa. HEIMSOETH. Werner M. Farbenfabriken Bayer Aktiengesellschaft (22c) Leverkusen-Baverwerk, Germany HEINDL. Raymond A. (RF) 4917 43rd St.. N. \V. Washington 16, D. C. HEINE. H. \V. (S) Hudson Supply it Equipment Co. 1727 Pennsylvania Ave., N. W. Washington 6. D. C. HEISCHMAN'. Fred E. (Wl 106 S. Acams St., Fostoria. Ohio (Electric Auto-Lite Co.) HELLER. Enrique H Cerro de Pasco Corp. La Oroya. Peru HELLIESEN. Richard O. (El) Pemco Corp.. 5c0l Eastern Ave. Baltimore 24, Md. HELLMAN. N.. Ill f\V) B. G. Corp. 321 Broad Ave.. Ridgerield, N. T. HELM. David F. (B) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. HELM KAM PF. R. N. (R) Oswald Refractories Co. 1617 S. Brentwood Blvd. St. Louis 17, Mo. HELSER. Perry D. (WFI) 110 Maryland Ave.. N. E.. Apt. 211 Washington 2. D. C. (L\ S. Dept, of the Interior) HELZ, Annin W. (B) 20 Maryland Ave., Gaithersburg, Md. (U. S. Geological Survey) HEUBERG. Per Surte Glasswork. Surte. Sweden HEMPHILL. R. W.t Jr. (W) Colonial Insulator Co. 945 Grant St.. Akron 11. Ohio HEMSTEGER. Samuel E, (El) 4155 Audubon Rd.. Detroit 24. Mich. (Consulting Engineer) HENDERSON. Frank P. (M) 512 Mockingbird La., Tyler, Texas (Ferro Corp., Allied Engr. Div.) HENDERSON. Frederick C. (WFT) Royal China, Inc.. Sebring, Ohio HENDERSON. Janies L.. Jr. (M) Robinson Ventilating Co. Zelienople, Pa. Vol. 36, No. 10 (1957) HENDERSON. William '.V. iM> Kobinson Ventilating Ca.. Box 217 Zelienople, Pa. HENDREN, Roben R. (RI) 105 3anx Ave., Riverton, N- J. (Hocganaes Sponge Iron Corp.) IIENDRYX. Dwight B. (S) Dwight 3. Hendryx 3c Associates 6621 Darlington Rd.. Pittsburgh 17, Pa. HENKEL. Carl F.. Jr. (G) Corning Class Works. Corning, N. Y. HENRY, Edward C. (BFI) 730 Crawford Ave., Syracuse 10, N. Y. (General Electric Co.) HENRY, Frank R. (RF) Simonds Worden White Co. 1101 Negiev PL, Dayton 7, Ohio HENRY. Georges Union dcs Verreries Mecaniques Beiges, 29. Quai de Brabant Charleroi, Haiuaur. 3elgium HENRY. Kenneth M. (CF) Owens-Illinois Box 1035. Toledo 1. Ohio HEXSLER. J. R. (C) Chemical Research Lab. Bausch & Lomb Optical Co. Rochester 2. N. Yr HENSON. Charles W. (R) Norton Co.. Worcester 6. Mass. IIENWOOD, Reginald J. (R) 9444 Lynnhaven Rd. Cleveland 30. Ohio (Republic Steel Corp.) IIEPPLEWHITE, J. W. (WFI) 13557 Cedar Rd., Cleveland 13, Ohio (Ferro Corp.) HERBERT. John S. (S) \V. G. Rush 3c Co.. 174 Third Ave., N. Nashville 3, Tenn. HERBERT. John W. (R) 3523 Anderson Pky.. Toledo. Ohio (I.ibhev-Owens-Ford Glass Co.) HERBERT. Paul R. (W) Sandyville. Ohio (Stvion Corp.) HERBST. Richard J. 1619 Glenwood Ave.. Joliet. III. ITERCER. Howard C. (G) Pierce Glass Co.. Port Allegany. ?a HERKO. Eduard (GI) 392 Magee Ave.. Rochester 13, N. Y. (Bausch & Lomb Optical Co.) HERMANN. Gunter Rua Nacaia 51 (V. Mariana) Sao Pauio, Brazil (Wheaton do 3rasil S. A.) HERMANN. James L. (W) 3288 Earlmar Dr. Lo* Angeies 64. Calif. (Redondo Tile Co.) HEROLD. Paul G (BFH Radio Corp. of America Chemical k Physical Lab. Lancaster. Pa. HERRING. Lenn B. 255 "D" Sr.. Clemson. S. C. HERRON. Robert H. (R) 54.110 Tmmvood. South 3end 15. Ind. (Bendix Products Div.) HESS. Albert J. (B1 Milwhite Co.. Inc. Box 238. Bryan*- Ark. HESS. B. Parker (G) Westinghouse Electric Corp. 700 Braddock Ave., East Pittsburgh. Pa. HESS. F. B. (G) Brockway Glass Co.. Inc. Rrockway. Pa. HESS. Robert L. (R) 44 Hess Blvd.. Lancaster. Pa. (Armstrong Cork Co.) HESSINGER. 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. HEWITT, L. C. (RFI) Ironton Fire Brick Co.. Ironton, Ohio HEWLETT, James Thomas (E) ingrain-Kicharcson, Icc. hrankfert. ir.;: 11 1CK E Y. i'r.m k }. (i ! C ir:::r:g Glass W..;k> Box 5 44. Coming. N. Y IliCKS, James C. B13 27350 Eugerton Rd.. Los Alto*. Calif, i Kaiser Aluminum 3c Chemical Corp.) HICKS. John F. G. (G131 Thompson Dr. Painted Post. N. Y. (Corning Class Works) HIGGINS. Ray (Wl 191 Overlook Ave., Wadsworth. Ohio (Ohio Brass Co.) HIGGINS. Waldo W. (EFI) A. O. Smith Corp. Box 534, Milwaukee 1, Wise. HIGGS. Harold P. (B) Automatic Manufacturing Co. 65 Gouvcrneur St.. Newark 4, N. J. IUCHLEY. Robert W. (R) Riciiaru C. Remmey Son Co. 2332 W. Liberty Ave. Pittsburgh 16. Pa. HIGMAN, JOHN W.. CO. (Robert J. Stone) 24 State St. New York 4. N. Y. HILDEBRAND. David (Wl R.R. 3. Hixson. Tcnn. i American Lava Corp.) HILL. David C. S4 Henrv St.. Cambridge. Ma>*. HILL. Ercell C. (SF) 109 Morton Ave., Apt. 5 Ridlev Park, Pa. HILL, John R. (S) 306 Scenic Dr., Charleston. W. Va. t Charleston Clay Products Co.) HILL. Lawrence I. (G) 503 Carver Blvd.. Toledo 7. Ohio i Libbev-0wens-Ford Cia** Co.) HINCKLEY. Arthur T. ( R l Hooker Electrochemical Co. Burfalo Ave. .t 47th St. Niagara Fails. N. Y. HIND. Stanley "The Mount.'* Etruria Rd. Basfoni. Stoke-on-Trent. England (Consulting Engineer) HINDS. J. r. (G) Canadian General Electric Co. 221 Dmrerin St. Toronto J, One.. Canada HINES. Robert A. (B) 3729 Radio C:.. 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.f Maumee. Ohio (National Lime 5c Stone Co.) HISCOCK. Harley J. (R) Fuller Merriam Co.. Box 69 West Haven, Conn. HITCHINS. R. A. <R> National Refractories Div. Mexico Refractories Co. 226 S. 16tM St.. Philadelphia 2. Pa. HITZEMAN, Roger L. (Wl) Globe-Union Inc.. 900 E. Keefe Ave. Milwaukee 1. Wise. HOAGLAND. Peter J. 3 West St.. Nunda, N. Y. HOBSON. Joe P. (S) Acme Brick Co.. Box 425 Fort Worth 2, Texas HOCH. Michael (B) University of Cincinnati Dept. Chem. k Met. Engr. Cincinnati 21, Ohio HOCKADAY. R. 3. (S) General Shale Products Corp. Kingsport. Tenn. HODGDON. Frank B. (B) Box 4132, N. Chattanooga Sia. Chattanooga 5, Tenn. (Tennessee Products 5c Chemical Corp.) Roster 49 HODGES. Leslie R.. Jr. Box 1-09, Atlanta, Ga. KODSON, George N. The Hall. Wymcswold Nr. Loughborough. England (Hathernware, Ltd.) HODSON. Jean T. 4295 Brooklvn, Seattle 5, Wash. HOELSCHER. Max W. (E) 5010 Mayfield Rd.. Lyndhurst 04, Ohio (Enamel Products Corp.) HOENIG. Clarence L. t RJ) 4325 Lawn Ave.. Western Springs, 111. (Argonne National Lab.) HOEY, Paul E. (S) Texas Vitrified Pipe Co. Box 117, Mineral Wells, Texas HOFFMAN, Richard C. 14784 Auburndale, Livonia, Mich. HOFFMAN. Sidney C. (G) 1646 Lindy Lane, Lexington. Ky (Sylvania Electric Products, Inc.) HOFFMAN. Willard H. J. (W) 8 Dungarrie Rd.. Baltimore 23. Md. (Cinchneid Sand 4 Feldspar Corp.) HOFFNER. Jere R. (G) T. C. Wheaton Co.. Millville. N. J. HOFSTETTER. G. W. (E) Ferro Corp., 336-338 N.,Central Ave. Chicago 44, 111. HOGAN. Thomas W. (W) Flintridge China Co. 350-380 S. Raymond Ave. Pasadena 1, Caiif. HOGARTH. William. Jr. Box 3829, Georgia Tech., Atlanta, Ga. HOGENDOBLER. H. R. (G) Gustin-Bacon Manufacturing Co. 3031 Fiberglas Rd., Kansas City, Kans. KOGENSON. William (E) Chicago Vitreous Corp. 1425 S. 55th Court. Cicero 50. III. HOHMANN, Frederick R. (G) 1012 Parkview Ave. New Kensington, Pi. (Pittsburgh Plate Glass Co.) HOHN. Carl M. (W) 508 Eastwav Dr.. Lakeiand. Fla. (Florida Tite Ir.dustrtes, Inc.) HOJALATA y LAMINA. S. A. (Geronimo Ramirez E.) Apartado Postal 996 Monterrey, X. L-. Mexico HOLADY, Harold W. Box 416, c.phrata. Wash. HOLDEN. Abe N. (B) General Electric Co. Vallecitos Atomic Lib. Box 346. Pleasanton. Caiif. HOLDEN, Robert 3. (B) Sylvania-Corning Nuciear Corp. Bayside. N. Y. HOLDENER. Irwin K. (R) 53891 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) 329S Lansmere Rd. Shaker Heights 22. Ohio (Ferro Corp.) HOLMES. Lyle A. (M) 82 Pilgrim Rd.. Rosslyn Farms Carnegie. Pa. (Great Lakes Foundry Sand Co.) HOLMES. Roland G. (S) W. S. Dickey Clay Mfg. Co., Bax 402 Pittsburg, Kans. HOLMQUIST. Stig B. (R) United States Steel Corp. Research Center, Monroeville. Pa. 50 Roster HOLMSTRO.M. Joseph H. (RI) 11211 Washburn Ave., S. Bloomington 30. Minn. (General Refractories Co.) HOLSCHER. H. H. (GF) Owens-Illinois 3ox 1035, Toledo 1. Ohio HOLST. Tage Vinkelvej lo. Kongens Lyngby. Denmark (Porceiaensfabriken Danmark A'Si HOLT. J. 3irch 1535 Sigma 9 Sait Lake Citv, Utah HOLTERHOFF. A. Gray (M) National Saies Corp. 307 E. Fourth 5t.. Cincinnati 2. Ohio HOLTRY. Byron C. (S) Henderson Clay products Henderson. Texas HOLWAY. Paul A. Box 737, Alfred. N. Y. HOLZMAN, George R. (G) Mellon Institute. 4400 Fifth Ave Pittsburgh 13. Pa. HOMMEL, E. M. (EF) O. Hommel Co.. Box 475 Pittsburgh 30. Pa. HOMMEL. O.. CO. (E. M. Hommel) Box 475, Pittsburgh 30, Pa HO.MVELD. G. H. A. Calte Cantarrana. Quinta Tucuman Las Delicia.s, Maracay. Venezuela (Fabrica Nacional de Pnrcelanal HONSBERG. Wcmrr (Wl Fabrica de Loza El Anfnra. >. A. Apartado 508. Mexico D. F.. Mexico HOOD. Clyde (G) Leeds 4 Northrup Co. 1922 E. 107th St. Cleveland 6. Ohio HOOD, Harrison P. (GF) 260 Delevan Ave.. Coming. N. Y. (Coming Glass Works) HOOD. L. Scott (MJI) Orton Ceramic Foundation '.445 Summit St.. Columbus. Ohio HOOD. Walter H. CM) International Minerals 4 Chemical Corp. (Canada) Ltd. 77 Metcalfe St.. Ottawa. Ont.. Canada HOOGENDOORN. Helen M. (EJT) 2135 Cummington Rd.. Apt. 3 Cleveland 6. Ohio ( Ferro Corp.) HOOKER. James K. 66 Libertv St.. 3oiivar. N. Y. HOOP. M. C. v. d. N. V. Royal Delft Ware Manufactory. "De Poreeleyne Pies'' v/h Joost Thooft 4 Labouchere 196 Rotterdamscheweg, Delft. Holland HOOPER. Bradford (R) Babcock 4 Wilcox Co. Augusta. Ga. HOOTON. 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 4 Mfg. Co. 1 W. Central Ave.. East Newark, N. J. HORAK. William (RFI) 223 Raymond Rd. West Hartford 7, Conn. (Hartford Empire Div.. Em ha rt Mfg. Co.) HORMBERG. R. E. (W) Misceramic Tile Box 1070, Geveland. Miss. HORNER. M. Harlan 4757 17th N. E. St.. Seattle 5, Wash. HORNING. Roy A. (GFI) Armstrong Cork Co.. Lancaster, Pa. HORNUNG. Martin R. (WI) 140 E. Sheridan Ave.. New Castle. Pa (Shenango China. Ine.) HORTON, Paul B ( WI i Insulator Dept.. General Electric Co. Box 17. 3a!t:more J. Md. HORTON. Robert A. (R) 452 Fort Wa-king:..':: A. r New York 53. N. Y. lAustenal. Inc. IHifiBEIN. Roger L. < K) 502 15th St.. N. \V.. Canton (Ohio (Republic S(eel Corp.'* HCSSENLO??. Arthur M. (Wi) 921 Mapic-.vood Dr.. Kokomo. Ind. (Delco Radio Div. General Motors Corp.'* HOSTETTER. J. C. (GFIi 1561 Dale Ave., Winter Park. Fla. (Consultant) HOUCHINS. Henry R. (W! Carborundum Co.. Niagara Fails. N. Y HOL'DEK. Albin (W) Box 395. Santa Anna. Texas (Santa Anna Tile Co. Inc.) HOUDESHELL. Robert J. (M> 223 W. South A St.. Gas City, Ind. (Marion Machine Foundry. Inc.) HOUGHTON. Amory (G) The Knoll. Corning. N. Y. (Coming Glass Works) HQ27J.AHAN. R. C. (S) Builders Brick Co. 3800 Ninth Ave.. 5.. Seattle 8. Wash. HOUSMAN. George S. (R) Box 17. Norristown. Pi. HOUSTON. Harry H. (B> Borg-Warner Corp. Algonquin 4 Wolf Rd. Des Plaines. 111. HOUSTON. M. Dean 1745 Skyline Dr.. Apt. 56 Pittsburgh 27. Pa. HOL'ZE. Around L.. Jr. (G) Houze Glass Corp.. Point Marion. Pa. HOWARD. EU\ in ( B) Mal-EI Ceramics 113 Oxford Rd.. Oxford. Conn. HOWARD, Harold 3. :S> 823 S. Ellis St.. Salisbury, N. C. (Taylor Clav Products Cc.) HO WAT, Walter L. CDF) Howat Kiir.s. 35 Hopping Ave. Staten Island 7, N. Y. HOWATSON. John (G) University of Wyoming Chemistry Dept.. Laramie. Wyo. HOWATT. Glenn (W) 11 Cliftwood Place. Meruchen. N. J. (Gulton Industries. Ir.c.) HOWE. Elroy E. (EFI) Chicago Vicrcous Corp. 1425 S. 55th Court. Cicero 50, 111. HOWER. Lawrence D,, Jr. (RI) Raybestos Div.. 75 E. Main St. Stratford. Conn. HOWER, R. S. (BI) Allen-Bradley Co. 136 W. Greenfield Ave. Milwaukee 4, Wise. HOWIE. Thomas W. Campbell 4 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, 3.C.C. (Kiu Foong Enamel Factory (HJL) Ltd.) HUBBELL. Dean S. (E) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. HUBBLE. David H. 206 Elm St.. Edgewood Pittsburgh 13, Pa. HUBER. George S. (E) 314 Ovetbrook Rd., Baltimore 12, Md. (Pemco Corp.) HUBER. J. M. CORP. (D. Parker MeAdoo) 100 Park Ave., New York. N. Y. Ceramic Bulletin HUBER. WARCO CO. AMERICAN CLAY MACHINERY DIV. ( R. A. 'Jarverick) 202 N. {.ircenwood St.. Marion. Ohio HUDSON, Charles J. (3.) 74 Newton St., '.Vest Bov|$:on, Mass. HUDSON SUPPLY Sc EQUIPMENT CO. (H. \V. Heine.) 1727 Pennsylvania Ave., N. W. Washinjicn 6. D. C. HUETT1C, Fred R. (WI) 296 3rook Ave., North PlainneUI. X. J. (Ceneral Ceramics Corp.) HUFFCUT, Harold \V. (G) Westinghouse Electric Corp. Electronic Tube Div., Box 234 Elmira, N. Y. HUGHES. Donald L.. Jr. Box 347. Alfred. X. Y. HUGHES. George B. <E) 236 Indiana Ave., Dayton 10, Ohio (Frigidaire Div., General Motors Corp.) HUGHES. Walter M. (WI) 534 Putnam Ave., Zanesville, Ohio (Chicago Standard Transformer Corp.) HUGHEY, Vaughn V. (R) Basic, Inc.. Maple Grove, Ohio HUI, Wiiliam L. C. (B) Radio Corp. of America, Tube Div. Marion, Ind. HULL, J. Brannon (W) Hull Pottery Co.. 327 Amerine St. Crooksville, Ohio HULL POTTERY CO. (J. Brannon Hull) 327 Amerine St., Crooksville, Ohio HULSE, Charles O. 463 61st St., Apt. A Oakland 9. Calif. HUMENIK. Michael, Jr. (B) 28477 Parkwood Dr., Inkster, Mich. (Ford Motor Co.) HUMMEL, Floyd A. (B) College z: Mineral Ir.austries Pamsylvania State University University Park, Pa. HUMMEL. Richard (G) 615 Olympia Rd. Pittsburgh 11, Pa. (Harshaw Chemical Co.) HUMMEL. Roy (W) 4318 Grantley Rd.. Toledo 13, Ohio (Champion Spark Plug Co.) HUMPHREY. Richard A. (W) Mycaiex Corp. of America Box 311. Clifton. X. J. fUND. George J. (W) 227 Poplar Ave. X. W., Canton, Ohio (Sparta Ceramics Co.) fUND, Ralph (R) Speer Carbon Co., Theresia St. St. Marys. Pa. -tUND, William O. (R) Box 172, Ranson. W. Va. (Standard Lime Sc Cement Co.) IUNGERFORD. R. M. (X) Clayburn-Harbison Ltd. 850 W. Hastings St. Vancouver 9. B. C. Canada IUNSBERGER, Jesse F. (R) A. P. de Sanno & Son, Inc. Phoenixviile. Pa. tUNT, Charles W. (W) 154 Vincent St.. Chagrin Falls, Ohio (Besrwail-Certain-Tced Sales Corp.) IUNT. Herbert J. (G) Kimble Glass Co., Vineland, N. J. IUNT, John F. (MI) Carpco Manufacturing, Inc. Box 3272, Jacksonville 6, Fla. XTNTER, Charles E. (M) Box 430. Erwin, Tenn. (Consolidated Feldspar Dept^ International Minerals & Chemical Corp.) UPPERT, Paul A. (El) 414 Randolph Rd., Plainheld, N. J. (Guiton Industries, Inc.) ol. 36. No. 10 (19.57) HURD, Burgess M. i.W) j Windy Crest Rd., Beaver Falls, ?a. (Ceramic Color Sc Chetr, Mfg. Co.) HURLEY. Robert E. (3) *69 Carr.den Ave. Moorestown, Burlington County, N. J. (RCA Victor! HURLEY. T. F. (B) Sprague Electric Co. North A.dams. Mass. HURST. Erwin J. (W) General Ceramics Corp. Plant a. Research Dept. Keasbey, N. J. HURST. James J., Jr. 349 Hopkins St.. S. W'., Atlanta. Ga. HURST. Thomas L. (R) .Monsanto Chemical Co., Research Dept. Lindbergh <3c Olive St. Rds. St. Louis 24, Mo. HUTCHINS. John R,, III Massachusetts Institute of Technology Graduate House. Rm. 619A Cambridge 39. Mass. HUTCHISON. Clark (EFI) 709 E. Armstrong St.. Frankfort. Ind. fIngram Richardson. Inc.) HUTCHISON. R. C. (RI) 2!33 Newton Ave., Bethlehem. Pa. ( Bethlehem Steel Co.) HUTT. Glenn A. (EF) 19629 Scottsdale Blvd. Shaker Heights 22, Ohio (Ferro Corp.) HUTT. Cordon M. (M) Canadian Pacihc Railway703 Windsor Station Montreal 3. Que., Canada HUYCX. L. G. (E) Huvck Construction Co. 1861 DeCook Ave., park Ridge. 111. HYATT. Edmond P. f\V) 3733 S. 3100 East St. Sal: Lake City 9, Utah (E'.ectro-Ceramics, Inc.) HYDE. Collin (RI) SSI Oxford St., Worthington, Ohio (3at:e!ie .Memorial Institute) HYNES. Frank J. (WI) Oxbow Rd.. Wayland. Mass. (Rartheon Mfg. Co.) HYSLOP. Joseph F. "Dromore." Major's Loan Falkirk. Scotland (J. G. Stein Sc Co., Ltd.) I IANDER. J. Richard (M) Ceramic Sews, 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). Vilvorrie. 3elgium IHRIG. Allen C. (G) 78 Boardman Ave. Cumberland Hills R. R.. Manviile, R. I. (Corning Glass Worksl ILES. Ramon R. (G) 2223 St. James Ct.. Owensboro. Ky. (General Electric Co.) ILIFF. Fred K. (W) Harshaw Chemical Co. Jackson Sc Swanson Sts. Philadelphia 48. Pa. ILLING, Arno M. (W) 5412 Lacoaia. Cincinnati J7, Ohio (Cambridge Tile Mfg. Co.) ILLINOIS CLAY PRODUCTS CO. (Howard F. West) 68 N. Chicago St. Joliet. III. ILLYN. Alexis V. 1080 State Fair Blvd. Syracuse 9. N. Y. IM, buk Cr.ucrg Korean Ceramic Society No. buh r: rt-Dong, Chor.gro-Ku Scoui. Korea IM HOFF. Edward J. (M) United States Ctass Co. Classport. Pa. IMMEDIATO. Robert R. (WI! Sprague Electric Co.. Nashua. N. H. INDIAN CERAMIC SOCIETY (H. N. Roy.i Dept, of Ceramics 3enares Hindu Univ.. 3caarc.. Ir.r.ia INDIANA GEOLOGICAL SURVEY (Jack L. Harrison) Indiana Universitv. Bloomington. Ir.c. INDUSTRIAL CERAMIC PRODUCTS, INC. (C. R. Cberst) 965 W. Fifth Ave.. Columbus 3, Ohio INDUSTRIA VENEZOLANA de VIDRIOS PLANOS C. A. (J. A. Azpurua C.) Ed. Humboldt Ap. 6, Sur Plaza Altamira Caracas. Venezuela INGERSOLL. Harry t El 8340 Beacon Ave.. Seattle 3. Wash. ( Pemco Corp.) INGERSOLL-HUMPHYRES DIV. BORG-WARNER CORP. (G. W. Kelch) 201 E. Fifth St.. Mansneld, Ohio INGHAM. David (W) 443 North Ave., Kittannir.g, 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 II. Mich. INSTITUT de CERAMIQUE FRANCAISZ 6 Grande-Rue Sevres i S. Sc O.). France Insulator--See General Electric Co. INTERNATIONAL CLAY MACHINERY CO. (R. H. MeElroy) 1145 Bolancer Ave.. Davton I. Ohio INTERNATIONAL COMMISSION ON GLASS (3. ?. Ducdicg) Research Laboratories Ceneral Electric Co.. Ltd. Wembley, Middlesex. England IRONTON FIRE BRICK CO. (J. H. Rickey, Jr.) 3ox 536 Ironton. Ohio IROQUOIS CHINA CO. (Robert E. Anderson) 2320 Milton Ave., Syracuse 9, N. Y. IRVINE, George C. (WI) Canadian Carborundum Co., Ltd. Niagara Falls. Ont.. Canada IRWIN, 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. (Hammiil & Gillespie, Inc.) ISAGAWA, Jun Nippon Tola Kaisha. Ltd. SM. Noritakeshinmachi, Niihilcu Nagoya, Japan ISELIN, Charles W. (GJ) Thatcher Glass Manufacturing Co. Elmira. N. Y. ISENHOUR. C. W,, Jr. (S) Isenhour Brick Sc Tile Co, 3ox 1249 Salisbury, N. C. ISENHOUR. James V. (S) Sanford Brick 3c Tile Co, Colon. N. C. Roster 55 I SEN HOUR. John H (SF`, 215 Confederate Avc., Saliiburv, N. C. (Iscuhour Brick i Tiic Co.) ITO. Shozo Nippon Caishi Kaisha. Ltd. 1. 2-Chome, Horita-dori, Mizuho-ku Nagoya'. Japan ITSCHNER. Robert T anner.rauchstrasse 106 Zurich 33. Swirzertanc (Tonwerke Thayngcn ACi 1VE5, John B. ( RI) 13 :itan<ii>h Si.. Frostburg, Md. ( Big Savage Refractories Div. Mexico Refractories Co.) IVEY. J. Ray (Si Acme Brick Co. R.R. 1, Millsap, Texas J JAB3USCH, Arthur J. (Si Pomona Terra-Cotta Co. Greensboro. N. C. JACKMAN. A. J. (R) Vesuvius Crucibie Co.. Box 3275 Swissvale. Pittsburgh 18. Pa. JACKSON. A. Curtis (SIT) Robinson Brick & Ti'.e Co. 500 S. Santa Fe Dr.. Denver, Colo. JACKSON. Arthur \V. (R) H a rbison-Walker Refractories Co. Box 68. Athens. Texas JACKSON. James `Avonhnugh*. Stonehoitse Lanarkshire. Scotland tjackson. Elphick 3c Co. Ltd.) JACKSON. James M. (G) Ball Brothers Research Corp. Box 191. Boulder. Colo. JACKSON. Mary A. (E) 11006 Montrose Ave. Garrett Park. Md. JACKSON. Robert E. R. R. I. Lancaster. S. C. JACKSON VITRIFIED CHINA CO. (Philip R. Distillator) 2 West St. Pelham Manor 65, N. Y. JACKSON. Wharton (M) Wharton Jackson Co. a75 Huntington Dr. San Marino 9. Calif. JACKSON. William M.. II (W) 13 Maura Dr., Woburn. Mass. (Godfrey L. Cabot. Inc.) JACOB, 3emard T. (RI) National Crucible Co. Mermaid Lane Sc Queert St. Philadelphia IS. Pa. JACOBI. James H. (E) Avco Manufacturing Corp. Crosiey-Bendix Home Appliances Div. Dept. 474, Nashville I, Tenn. JACOBS. Charles W. F. (W) 63 Hawthorne. Buffalo 23, N. Y. (Titanium Alloy Mfg. Div.. National Lead Co.) JACOBS. H. Box 117, Vereeniginc Transvaal. South Africa (Vereeniging Brick 3c Tile Co. Ltd.) JACOBS. Louis J. (R) Ramtite Co., 2563 W. ISth St. Chicago 8. III. JACOBS, Richard A. (G) Brockway Glass Co.. Inc. Brockway: Pa. JACOBY. William R. 12 Dyer Dr., Jonesville. N. Y. JAFFE. Bernard (WI) 4238 Hinsdale Rd. Sooth Euclid 21. Ohio (Gcvite Research Center) JAMESON. Robert J. (C) Libhey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio JAMISON, C. Donald, Jr. (R) Koppers Co.. Inc., Eng. 3c Const. Div Koppers Bldg., Pittsburgh 19, Pa. Vol. 36, No. 10 (1957) JANES. Cluv.eu S., Jr. 1025 Vermont Ave.. Pittsburgh 54, Pa. JANKE. Charies E. S) JJ6J Winthrnp Dr.. Parma 2?. Ohio (Cleveland 3uiiiers Supply Co.) JANKOWSKI. Charles R. 16 Hakes Ave.. Horn-1!. N. > JAXSMA. Frank I M F; B. F. Drakenfeld i Co., Inc Washington. Pa. JANSSEN. Wiiliam F. i'.() 15 Oak R;cge Rd.. 3aking Ridge. N. J. (Bell Telephone Lnl*s.) JARVIS. Theodore (B Ford Instrument Co. 31-10 Thomson Ave. Long Island City I. N. Y. JASPER. Stanley J. t\VJ) 2411 Beil Sc.. Zanesville. Ohio (Mosaic Tile Co.) JEFFERY. Benjamin A. f\V) Box J2, Tumacacori. Ariz. (Champion Spark Plug Co.. Ceramic Div.) JEFFREY, G. H. (W) Roder Ceramic Studio, 1351 R.ivv St. Philadelphia 7, Pa. JEXKS. C. E. (M) W. S. Tyler Co. 3615 Superior Ave.. N. E. Cleveland !4, Ohio JENNINGS. Edward r. (R) 260 E. Walnut. WestncM. N. J. (Carborundum Co.) JENNY. A. R. (M) Combustion Engineering. Inc. Raymond Div.. 1315 N. Branch St. Chicago 22. 111. JENSEN. Edwin K. (E) 2915 Willoughby Rd. Baltimore 14, Md. (Briggs Manufacturing Co.) JEPPSON, George N. (RF) Norton Co.. One New Bond St. Worcester S. Mass. JEPPSON. John (R) 40 Westwood Dr.. Worcester. Mass. (Norton Co.) JERO. Parker (E) 932 Birchwood Dr.. Washington, Til. (Caterpillar Tractor Co.) JIMMERSON. James E. (S) Henderson Clay Products. Box 870 Henderson. Texas JOHNS-MANVTLLE SALES CORP. (J. C. Crawford. Jr.) 22 E. 40rh Sr. New York 16. X. Y. JOHNS, William V. (W) Shenango uaina Inc., New Castle. Ta. JOHNSON. A. L. (WF) Universal-Rttndle Corp. W. Keith McAfee Lib.. Box 1263 Mahoningtown. Pa. JOHNSON. Alexander II. H. L. Brisbane 3: Wunderlich Ltd. Lord St., East Perth. West Australia JOHNSON. Alton E. (WI) 4903 N. 53rd St.. Milwaukee. Wise. (Centralab Div.. Globe-Union Inc.) JOHNSON. A. M. (R) Ross-Tacony Crucible Ov Robbins 3t Milnor Sts. Philadelphia 35, Pa. JOHNSON. Ben 5206 Valiev Oak Dr.. Austin 3. Texas JOHNSON. Bruce M. 353 Highland Dr.. Seattle 9, Wash. JOHNSON. Clarence L. (W) Globe-Union Inc. 900 E. Keefe Ave.. Milwaukee. Wise. JOHNSON. David M. fBJ) 4U0 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 3t Tile Co. Box 338. Clarksville, Ark. JOHNSON. Elwir. L. jiJ'J i. Good Air Ave.. Apt. 215 l/rbana. 111. JOHNSON. Fred H.. Jr (SSurr.mitvillc. Ohio, i Summitvilie Face Brick Co ) JOHNSON. George E.. Jr. (RI North American Refractories Co. Curwer.sville. Pa. JOHNSON. Gordon H. (E) 24 1S3 Gessr.er Rd. North Olmstead. Ohio (Ferro Corp.) JOHNSON. Harold C. (G) Corning Glass Works Corning. 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 St 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. III. (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. Bloomneid. Conn. (Hartford-E.mpire Co.) JONAS, Edward C. (G) University of Texas. Dept, oi Geology Austin. Texas JONES. Cecil M.. II (R) Box 65, Greendaie Sta. Worcester, Mass. (Norton Co.) JONES. Francis L. Box 538. Georgia Tech., Atlanta. Ga. JONES. Frank L. (R) Koppers Co.. Inc.. Box 123, 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. (Jones-Mundle & Co.) JONES. John T. lltO 13th St.. Golden, Colo. JONES. Maynard J. (E) Pfaudler Co.. 1000 West Ave. Rochester fl, N. Y. JONES METAL PRODUCTS CO. (Edwin F. Mulligan) West Lafaverte, 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. Roster 57 fOXES. Richard E. (R) Pittsburgh Plate Glass Co. Research Laboratory, Creighton, Pa. TONES. Robert O. fR) Standard Slag Co. Box 3. Gacba. Nev. 'ONES. Roger D. (R) 23 Cushing PI., Burtalo 20. X. V. (Electro Refractories Sc Abrasives Corp.) OXrCER. G. H. Philips Research Labs.. Kastanjelaan Eindhoven, Netherlands TONTZ. Melvin L. (M) Box 32136, Los Angeles 32, Calif. (Melvin L. Jontx Co.) TORDAN. John N. (G) Consumers Glass Co. Ltd. Box 456. Station B. Montreal, Que.t Canada IORDAN, John W. (M) Baroid Div., National Lead Co. Box 1675, Houston 1, Texas IORDAN. R. E.. Jr. (W) Mosaic Tile Co., Zanesville, Ohio ORGENSON, Paul J. 1153 Sherman Ave. Salt Lake Citv, Utah TOVA BRICX WORKS (J. L. Jova) Roseton, N. Y. TOVA. J. L. (S) Jova Brick Works, Roseton, N. Y. OYNER. Bobby L. (W) Erie Technical Ceramics Div. Erie Resistor Corp. Box 677, State College. Pa. UDD. Donald M. (E) 19707 Wickneid Ave. Cleveland 22. Ohio (Ferro Corp.) UDD. Roger D. (S) Endicott Clay Products Co. Box 17, Fairburv. Nebr. 'UDKINS. Robert W. (W) Wilbur 3. Driver Ca. 1875 McCarter Hwy., Newark 4, N. J. 'UELSS, David (M) Venus Pen & Pencil Corp. 500 Willow Ave.. Hoboken, X. J. K \ACICZ. Joseph M.. Jr. 384 Red Oaks Dr., Elberon. X. J. CADEY. Frederic L.. ;r. (3) Four Bridges Rd.. Chester. X. J. TJohns-Manville Corp.) SAKLSON, W. S. (G) General Electric Co.. Lamp Dept. Pitney Glass Works, Nela Park 12 Cleveland. Ohio CAHN, Max (G) 4932 Oleander Dr., Wilmington, N. C. CAISER. Leonard F. (G) 332 E. Wayne St.. Maumee. Ohio (Libbey-Owens-Ford Glass Co.) <ALLUP. Charles, Jr.. (WI) Helipot Corp., Box 458 Xewport Beach, Caiir. CALMAN, Frank R. (El) 2014 Baxterly Rd.. Lakewood 7, Ohio (Pemco Corp.) <ALMBACH. William J. (G) Owens-Illinois Techincal Center 1700 N. Westwood Ave. Toledo 7,, Ohio :<ALOUSEK. George L. (G) 2633 Merrimac Blvd., Toledo 6, Ohio (Owens-Illinois) <AMICH. Barnet Z. (B) 11 Garwood St.. South River, N. J. (Army Ordnance Corps) CAMLER. Anthony R. (GJI) 3801 Harrison Ave., Apt. 7 El Paso, Texas (Pittsburgh Plate Glass Co.) <ANAZAWA. Edward (BJI) 10056 Mann Dr.. Monta Vista. Calif. (Lockheed Aircraft Corp.) /OL. 36, No. 10 (1957) KANE. Johr. L. !W) i4 57 Wickiow Ave. Cincinnati 36. Ohio (Cincinnati Milling Products Div., Cincinnati Milling Machine Co.! KANG, Yon? G. Hankuk Glass Industry Co. Ltd. Box 1082. 5 Namchang-Dor.g, Choong-Ku. Seoul. Korea KANTOR. Neil I. (WI) 193 Mason Dr., Metuchen, N. J. (Crucible Steel Co. oi America) KAPADIA, Homi (E) 302 9. N. Fourth St.. Niles, Mich. (JCawneer 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 (Ingersoil-Humphryes Div., Borg-Warner Corp.) KARNER. Ernest F. 306 S. Filth St.. Champaign. III. KASPER. Robert J. (R) Ohio Crankshaft Co. 3800 Harvard Ave.. Cleveland 5. Ohio KAS3EE3. John 5. (B) American Testing Lab.. Inc. Box 1421, Lancaster, Pa. KAST, Edward T. Box 847. Alfred. N'. Y. KASTEN'. Eiiiott A. 2041 Pacific St.. Brooklyn 33. N. Y. KASTEN. Vernon L. fWI) Three Oaks, Box 34. Jackson. Mo. fCeramo Co. Inc.) KASTENBEIN. Ernest L. (W) 100 E. Van Ness Ave.. Rutherford. N. J (Tile Council :f America) KATONA. Gabriel P. (GJ) 65'/j Sterling St.. Corning, X. Y. (Corning Glass Works) KATZ. Joseph M. (WI) Lockheed Aircraft Corp. Missiie Systems Div.. 65-70 Sunnyvale. Calif. KATZ. Sigmund (E) 24 Cooiidge Ave.. West Orange. X. J. (Permader.r Labs.) KAUFFMAN. John R. (MFD 13235 3raun Rd.. Golden, Colo. (Speedster, Inc.) KAUFFMANN. Otto T. fW) Frontenac Floor & Wall Tile Ltd. Kingston. Ont.. Canada KAUTZ. Karl (EFI) 24 Leon Rd.. Pittsburgh 20. Pa. fVitro Mfg. Co.) KAVADAS. Paul ?. 4116 12th Ave.. N. E.. Apt. 203 Seattle 5, Wash. KAY. William T. (R) E. J. 3artells Co. 1212 Sixth Ave., S.. Seattle 4, Wash. KAYSER. Julius A. (R) Gladding. McBean 4 Co. 2901 Los Feiiz Btvd. Los Angeles 39, Calif. KEANEY. J. C. (G) 1201 Banksville Rd.. Pittsburgh 16, Pa. (National Lime 4 Stone Co.) KEANEY, Joseph C.. Jr. (G) Feldspar Corp.. 1201 Banksville Rd. Pittsburgh 16, Pa. KEANEY, Robert C. (G) Sl Lawrence Fluorspar, lac. 1201 Banksville Rd., Pittsburgh 16, Pa. KEARNEY. John P. (G) . 2722 Densmore Dr., Toledo 6, Ohio (Kimble Glass Co.) KEBLER, Leonard (E) Ward Leonard Electric Co. Mt. Vernon, N. Y. KEEFE. Daniel j.. Jr. (WJ) 5 Circle Rd.. Scarsdale, X. Y*. I U. S. Army) KEEFE. Ruber: M. ( R) 12 Beth Lane. Malvern. ?a. til. K. Porter C u.) KEEFER, George E. [G) Owens-Illinois Technical Center 1700 X. Westwood Ave. Toledo 1, Ohio KEHL. Nelson H. (RI) E. J. Lavir.o 4 Co. 3ox 29, Norristown, Pa. KEIM, Laurence A. (G) 144 Cochran Rd.. Pittsburgh 23. 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 S:., Whittier. Calif. (W. ?. Keith Co.) KELCH. G. W. (W) Ingersoil-Humphryes Div. Borg-Warner Corp., 201 E. Fifth St. Mansfieid. Ohio KELLER. Francis Pfungcn, Switzerland (Keller 4 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.. Y'ork Rd. Guelph. Ont., Canada KELLY. George D. (E) 1100 Dublin Rd., Columbus 3. Ohio (Batteiie Memorial Institute) KELLY. Hat J. (R) 6025 52r.d X. E., Seattle 5, Wash. (U. S. 3ureau or Mines) KELLY. John V. (R) Kaiser Steel Corp. 3ox 217, Fontana. Calif. KELLY, Joseph F. (R) 301 Eradcock Ave.. Lansdowne. Pa. (Naval Bciier 4 Turbine Lab.) KELLY, William J. (WI) 912 29th St.. Hondo. Texas tU'mverial-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 4 Haas Co., Bristol. Pa. KEMP, John A.. Jr. (W) Church St.. R. R. 1. Brooklyn. Conn. (American-Standard) KEMPF. William C. (RI) 23 Komer PL, Meruchen. N. J. (Carborundum Co.) KEXAGY. Lioyd X. (RJ) 770 Fetters Mill Rd. Huntingdon Valley, Pa. (Generai 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. (C) Lancaster Glass Corp. 220-226 W. Main St., Lancaster. Ohio Roster 59 KEXXiiDY. Rich.-.TM W. i.W) 373 Winchester Avc., L-irujhorn*. i'... (Star Porcelain Co.) KENT, Joseph P. (WI) 247 Siarr 3:.. Brooklyn 27, N. Y. (Leviton Mfj. Co.. Ir.c.J KENT, N. Johnson (RI) Johns-Manville Sales Corp. 22 E. aoth S:.. Ne-.v York 15. N. Y. KENT. William B. MIi 1605 Fairview Place. Alliance. Ohi.t KentocUe.Tennessee Clay Co.) KENTUCKY'CLAY MINING CO. (W. J. Watkins) Mayrield, Ky. KENTUCKY-TENNESSEE CLAY CO.. INC. (.Chester Gulick. Maytieid, Ky. KENWORTHY, Orville O. (B) 1486 Arthur Ave., Lakewood 7, Ohio (Ferro Corp.) KENYON, Clark (W) Frenchtown Porcelain Co. Frenehtoivn, N. J. KEPKA, Georse M. (MI) Braun Corp.. IJ6J S. Bonnie Beach PI. Los An^eies 54, Calif. KEPLINGER. Robert 3. (RFI) Carroll Clay Co. Box 56. Carrollton. Ohio KERINS. M. ?.. Jr. (E) Stauffer Chemical Co. 380 Madison Ave., New York, N. Y. KERLA, Hans (R) 52S Beaumont Ave., Baltimore 12. Md. (Kerloid Corp.) KERPER. Matthew J. (31) 1 National Bureau of Standards Div. 9.2. Washington 25. D. C. KERR. Charles H. (GF) 2861 Chatsworth Blvd. San Diego 6. Calif. KF.RR. John M. iBJ) 117 Amherst Lane. Oak Ridge. Tenn. (Union Carbide Nuclear Co.) KERR. W. Rsvmond (RFI) Armstrong Cork Co. Box 441. Beaver Falls, Pa. KERRIDGE. Frank E. Johnson Matthey St Co. Ltd. Research Laos.. Exhibition Ground* Wembiey. Middlesex. England KERSriNER. William G. (Wl> 117 S. 14th St.. Olean. N. Y (Olean Tile Co.) K ESS EL. David J. oOl \V. High St.. Urbana. 111. XESTER. Ralph G. (RI) 1394 June Dr.. Maumee, Ohio (Kimble Glass Div., Owens-Illinois) KEYS. Robert A.. Jr. j08 Whitehall Rd.. Anderson. S. C. KIBLER. H. W. (W) Southern Potteries. Inc. Box 279, Erwin. Tenn. KIEHL. Harry R. (G) 223 Chemung St.. Corning, N. Y. (Coming 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, N. J. KIM. Kee Hvong Pennsylvania State University Box 22. College of Mineral Industries University Park. Pa. KIM. You S. North Carolina State College Dept, of Mineral Industries Raleigh. N. C KIMBLE GLASS CO. (H. R. Black) 1700 N. Westwood Ave.. Toledo, Ohio Vol. 36, NTo. 10 (1957) KING, Burnham 'A., Jr. ish)rl) 2234 Lane RJ., Columbus 21. Oii:o ( 3attel!e Memorial Institute) KING. Charics 3. (G) 1S9 Cedar 5t., Corning, N. V (Corning Glass Works) KING, Gerard J. 3} 1209 N\ Quake: Lane. Apr. 23j Alexandria. Va. t E.R.D.L., Fort Belvcir1 KING. Harry M. (M) 942 W. State. Sycamore. II!. (Anaconda Wire ck Cable Co. KING. R. M. {XFl) Lord HaJ). 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, III. KING. Waiter F. (M) 365 Arborlea Ave., Morrisville, Pa. (Shenandoah Silica Co.. Inc.) KING. Wayne W. (R) 803 Kingston Rd.. Baltimore 12. Md. (W. S. Tyler Co.) KINGERY. W. D. (B) Ceramics Div.. Mass. Inst, of Tech Cambridge. Mass. KINSMAN. Bradley Q. (MI) 7 Wicks Blvd.. Corning. N. Y. (Corning Glass Works) KIRCHER. Paul J. (G) Maryland Glass Corp. 2147 Wicomico St.. Baltimore 30. Md. KIRCHER. Wolfgang Didier-Werke. 16 Lessingstr. Wiesbaden, West Germanv KIRCHNER. Henry P,, Jr. (B) Cornell Aeronautical Lab. 4455 Gene.ee St.. Buffalo, N. Y. KIRKENDALE. C. A. (XI) State University of New York College of Ceramics, at Alfred L'niv. Alfred. N. Y. KIRKPATRICK. Frank (WFI) 2920 Manhattan 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 Saies Co. 77 W. Washington St.. Chicago. III. KLAUS. Irving iW'i 137 Winthrop Rd. Washington Park. Nixon. N. J. (Permanent Products. Inc.) KLAUS. Sol C.. Jr. (W) 50 S. Munn Ave., Apt. 304 East Orange. N. J. (General Instrument Corp.) KLEEMAN. Lee A. (R) 5700 Center Ave.. Apt. ?06 Pittsburgh 6. Pa. (Harbison*Walker Refractories Co.) KLEIN. Jonathan D. Massachusetts Institute of Technnlngv Rm. 4-051. Cambridge 39, Mass. KLEINHANS. C. J. (E) Porcelain Metals Corp. 1400 S. 13th St. Louisville 10. Kw KLEINPAUL. Mrs. Elfride Kleinpaul Caolini Argille ed Affini Via Luigi Razza 2. Milano, Itaiv KLEKOTKA. Joseph F. (G) 3601 Reed St.. Philadelphia 46. Pa. (Philadelphia Naval Base) KLEVENS. H. B. (G) Mellon Institute University of Pittsburgh Pittsburgh 13. Pa. KLEYMEYER. Clifford A. (S) Standard Brick St Tile Corp. 123 N. W. Fourth St. Evansville 3, Ind. XL1CKER. Everett E. R) Michigan Chemical Cur:. Saint Lmuis. Mich. KLIMAN. Morton I. i. B j 6 Sutton St.. Mattapan -6. Mass. (Arthur D. Little. Inc.) KLINDER. Thcnas W. 23 Princeton Rd.. Parliu. N. J. KLINE, Hugh L. (R) Corhart Refractories Co . Inc. I 500 W. Lee St., Louisville i0. Kv KLINEFELTER. T. A. (RFI; 21 la -F- S:.. N. W. Washington 7. D. C. ( L'. 5. 3urcau of Mines) KLINGS3ERG. Cyrus 508 Linden Rd., State College, Pa. KLIPPER. Joseph (M) Clipper Diamond Tool Co.. Inc. 345 Hudson St.. New York 14, N. Y. KLOCKE. Edward J. (M) H. C. Spinks Clay Co., Inc. 1000 First National Bank Bldg. Cincinnati 2, Ohio KLOCKNER. Herman Richard (E) Universal-Rundie Corp. W. Keith McAfee Lab.. Box 1263. Mafceningtown. Pa. KNAUP* 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., New Castle. IV. (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. (WI) 201 Edgewood Ave.. New Castle I (UniversaI*Rundle Corp.) KNESEL. Les (W) Cala Tile 4911 E. Slauson Ave.. Maywood. Cali:. KNIGHT. E. H. (S) Maurice A. Knight. " Knight-Ware" Box 150. Crooksville. < ii* KNIGHT. M. A.. Jr. (S'^ Maurice A. Knight, "Knight-Ware * Box 111. Akron 9. Jhic KNIGHT. MAURICE A.. `'KNIGHT-WARE" (M. A. Knight, Jr.) Box 111, Akron 9. Ohio KNIGHT. Meilen 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.) KNISELY, Robert C. (G) 2907 Letchworth Pky.. Toledo 6. Ohio (Kimble Glass Co.) KNIZEK. Jan Otto (R) Apartado 2739, Mexico. D. F. Mexico (Compania Mexicans fie Tubos de Albanai. S. A.) KNOBLAUCH, Walter C. (RI) Box 271. R.R. 3, Tiffin, Ohio (Basic. Inc.) KNOWLES, EDWIN M.. CHINA CO. (W. D. Packman) Newell. W. Va. KNOWLES. Philip S. (S) 210 Taylor Rd.. Elgin. Texas < Elgin Butler Brick Co.) KNOWLTON. Donald E. (W) 510 S. Osage Ave.. Inglewood. Calif. (General Tile Co.) KNOWLTON. Samuel H. (W) 1615 Birmingham Blvd. Birmingham. Mich. (Aluminum Co. of America) Roster 61 KNOX. J-i:ieS J. l<i; 6 Mcir./cr Si., Avcncl. N. J. ! Knox i.aboraiorv, Inc.) KNUDS EX, Fr-.irich ?. (31) 4912 Crsscrn: St., Washington 16, D. C. National Bureau of Standards) KNUDSEN. Rcif 3orgestad, ?. A.. Norway (3orgestad Fabriickcr) KNUTSEN, Eivind (S) Western Refractories Co. 3ox 169. lone. Gaiif. KOCH. Daniel O. (M) E. I. du Pont de Nemours J: Co., Inc. Electrochemical! Dept. 71 Buckingham Ave. Perth Amboy, N. J. KOCH. Frank A. (M) National Sales Carp. 207 E. Fourth St., Cincinnati 2, Ohio KOCH. Renato Marconi Italians S. p. A. Stabilimento Tubi Elettronici Via Pile 60, L'Aquila, Italy KOCH. Richard L. (B) Walter Kidde & Co. 72S 3roadway, Newark, N. J. KOCH. William J. (WI) A. C. F. Electronics 1336 N. Henry St.. Alexandria, Va. KOCHANEK. Miehel (R) 4141 153rd St.. S. E.. Bellevue. Wash. (Gladding. McBcan & Co.) KOEHLER, W. A. (RI) Mineral Industries Bldg. West Virginia University Morgantown, W. Va. KOENIG. Charles Jacob (WFI) Engr. Expt. Sta., Ohio State University Columbus 10, Ohio KOENIG. E. W. (M) Consolidated Feldspar Dept. International Minerals Si Chemical Corp. 20 N. Wacker Dr.. Chicago 6, 111. KOENIG. John H. (WFI) Rutgers, The State University School of Ceramics New Brunswick. X. J. KOENIG. L. C. (X) Lindberg Engineering Co. 2450 W. Hubbard St.. Chicago 12. III. KOHL. Hans Lecrbachstr. 117 Frankfurt A. M,, Germany (Degttssa) KOHL. Walter H. (R) 12593 Valley View Dr. uus Altos. Calif, t Stanford University) KOHLER. Anthony M. (R) 400 Atlantic Ave.. Springlake, N. J. (Consultant) KOHLER CO. (G. P. Gavin) Kohler. Wise. KOHLER. Maurice A. (R) 415 Monmouth Ave. Spring Lake, N. J. (Babcock 4 Wilcox Co.) KOHN. Joseph (W) Universal Dental Co. 43th 4 Brown Sts.. Philadelphia 39. Pa. KOHNE. Frank H. (W) Ceramic Color Sc Chemical Mfg. Co. New Brighton, Pa. KOLLIE. Thomas G. 653 Willard Ave., S. W,, Atlanta, Ga. KOLSTAD. John H. (M) 3604 Laguna Dr.. Decatur, Ga. fInter-Kiin-Salgo Engineering Co.) KONOPICKY, Kamillo Forschungsinstitut der Fenerieat-1 ndustrie Helmholtrstr. 27. Bonn. Germany KONOWITCH. Gilbert D. 2010 N. 74th Ave. Elmwood Park 35. III. KONRAD. Howard E. (R) Claire Dr.. R. R. 5. Somerville. N. J. (Johns-Manville Corp.) Vol. 30. Mo. 10 (1957) KOOIJ. K. Chamotte L'nie X.V. 7. Tieisrweg Ceitiermaiser.. Holland KOOS, E. X. (WI) Sterling China Co. East Liverpool. Ohio KOPP GLASS. INC. (C. E. Leherkniijh:) Box 3255 Pittsburgh 13, ?a. KOPPERS CO-. INC. (Frank L. Jones) Box 123. Verona. ?a. KORA, Vosio 2 Chome. Katsuyama-Cho Yawata, Fukuoka. Japan ( Kurosaki Fire Brick Mfg. Co. Ltd.) KOROLKOFF, Nicholas O. (W) Rome Air Development Center. USAF RCSGP?--Grimss AFB. Rome. N. Y. KOSCHNY, Arthur American Ceramic Society, Inc. 4055 X. High St., Columbus 14. Ohio KOSKUBA. Walter J. (BI) 424 Hillcrest Dr.. Wyoming 15. Ohio (General Electric Co.) KOVALICH. Joseph J. (W) 139 Viila PL, Rahway, X. T. (Radio Corp. of America) KOWAL. Leo B. (G) Canadian Pittsburgh Industries, L:d. 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. 13th St.. Chicago. III. KRAFT. Ralph G. (3) 102 W. Caateau Place Milwaukee 17, Wise. (AIlen-Bradiey Co.) KRAFTILE CO. (C. W. Kraft) NUes. Calif. KRANER, Hcbart M. (BFI) Bethlehem Steel Co. 3ethiehem. Pa. KREGER, John M. (R) Vaientiae Fire Brick Co. Div. A. ?. Green Fire Brick Co. Wocdbridge, X. J. KREHBIEL. Frederick H. (G) Box 25. Pataskali. Ohio (Owens-Corning Fiberglas Corp.) KREKBIEL. H. Orton (W) Pyrocoaes Inc.. Pataskaia. Ohio KREIDL. E. L. (G) A. D. Little. Inc. 30 Memorial Dr., Cambridge, Mass. KREIDL. Norben J. (GF) 40 Milford Rd.. Rochester 10. X. Y. (Bausch & Lom'o Optical Co.) KREUER, Albert L. (M) Oretraction, Inc., 7425 Thomas St. Pittsburgh 3. Pa. KRIEGEL. W. Wurth (XFI) 149 Dallam Rd., Newark, Del. (North Carolina State College) KRIGER. Frederick S. (C) 148 E. Second St.. Coming, N. Y. (Corning Glass Works) KRILL, Karl E. (B) Ohio State University Columbus 10. Ohio KROECK* William H. (G) Corning Glass Works Box 544, Coming, N. Y. KROGSTIE. Lars Bernhard Fredrikstad. Norway (Norsk Teknisk Porselenfabrikk) KRONBERG. Marritt L. (B) General Electric Co., Research Lab. Schenectadv, N. Y. KRONMAN, Samuel J. (WI) Carteret China Co. High St.. Carteret, N. J. NRULL. Alan R. (B) Technological Institute Library Northwestern University Evanston. III. KRUMWIEDE. John F. 404 Fox River St.. ?!ainrield. 111. KRUSOX. Joseph H. iRi Box 353. Frostburg, Md. (3ig Savage Refractories Div Mexico Refractories Co.) KRYSTYNIAK. Ca^rr.r W. ; R) 343 Kowell St.. Schenectady 5, N. Y. (General Electric Co.) KRYWULT, Edward 2. (W) 171 St. Joseph Ave. Long Beach 3, Calif. (Huntington Tile, Ir.c.) KUECHLER. Adolph (WI) 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 3. Ohio KUMINS, Charles A. (B) Interchemical Corp. 432 W. 45th St., New York 36, N. Y. KUNDLER, Hanns H. (M) Amhold Ceramics, Inc. One E. 57th St.. New York 22, N. Y. KUNZMAX, Edward E. (Ml) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio KURKJIAN, Charles R. Department of Glass Technology Sheffield University Sheffield. England KURTZ. Peter. Jr. 827 Second St.. Apt. B. Santa Monica. Calif. KUSKNER, 3ur:on A. Box 51S8. Georgia Tech., Atlanta. Ga. XUYPEE. Geoffrey S. (I) Griffin Wheel Co. 44$ N. Sacramento 3!vd., Chicago. 111. KYANITS MINING CORP. (Gene Dixon) Cullen, Va. KYI. Maung Yu Union oi 3urma Applied Research Inst. Junction of Xaba Ave.-Kanbe Rd. Kanbe. Rangoon, Burma KYOKWAI. Yogyo Ceramic Association. Japan No. 7. Shiba Nishikuoosakura Gawa-Cho. Mina:o-Ku. Tckvo. Japan KYONKA. Joseph C. (WI) 303 12th Ave. N\. Hopkins, Minn. (Ceramic Arts Studio) L LABANSAT. M. Jacques Societe Professionneile Des Produits Fmncais De Terre Cuite 23. rue de Cronstadt. Paris XV. France LABO RATO RIO QUIMICO NACIONAL (Jorge Ancizar-Sordo) Ministerio de Minas y Petroleos Apartado 2577, Bogota. Colombia LACHMAX. Irwin M. (WI) 18 Pine Dr.. Roosevelt, N. J. (Thermo Materials. Inc.) LACLEDE-CHRISTY WORKS REFRACTORIES DrV. 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 302 Sacramento 4, Calif. LADOO, Raymond B. (M) 42 Huntington Rd.. Newton 58, Mass. (Consulting Engineer) Roster 63 LarORGE. Louis H., Jr. (,W) 76- Marion Ave., Palo Alto, Laiii. (Consulting Engineer) LA.IDLZR, Douglas S. 34. V-.carage Ln. Kings Langley. Herts. England (Associated Lead Manufacturers. L:i.) LAIRD. O.aries I SI) 3ox -62. Holly Springs. Miss. (Holly Springs Brick & Tile Co.. Inc.! Laird, z-juard w. (s> I JO l Monroe. Baytown, Texas i Cedar Bayou Brick Sc Tiie Co.) LAIRD, Robert K. (E; 4507 Blue 3ird Ave.. Louisville 13. Ky. (American Radiator St Standard Sanitary Cor?.. Plumbing Div.) LAKTA5ICH. Peter M. Box 347. Alfred. N. Y. UMAIRE. Robert V. (Rl) Sawmill Rd.. Warren Tp. Plainneld. N. J. ( International Nickel Co., Inc.) I.AMAR. George B. (R) Interchemical Corp., Albion Kaolin Div. Hepnaihah. Ga. LAMAR. Wavland W. (RJ) Hephaibah. Ga. (rtiterchemical Corp.) I.AM3. Hai (M) Braun Corp,. 1363 S. Bonnie Beach Pi. Ln* Angeles 54. Calif. LAM BE. C. M. IMFI) 2319 Thyer St., Evanston, III. United States Gypsum Co.) LAMBERT. Joseph M. (G) Meilon Institute. 4400 Fifth Ave. Pittsburgh 13. Pa. LAMBERTSON. Wingate A. (BI) Carborundum Co., Research Lab. Niagara Falls. N. Y. LAM3ER7US. Harold (B) American Bearing Corp. 429 5. Harding St. Indianapolis 7, Ind. LAM 31E. J. M. (R) Findlay Gay Products Co. \\\ihirernn, Pa. LANDBaCK. Charies R.. Jr. (Ml Carborundum Co.. Keasbey, >L J. LANDRON. Rafael. Jr. (R> Corning Glass Works. Corning. N*. Y. LA.YE. George J. iM) Edgar plastic Kaolin Co. Ede.-.r, "I.,. LANE. Richard O. (WI) Mackiin Co.. 2917 Wildwood Ave. Jackson. Mich. LANG. Richard L. i'G) Ohio Fuel Gas Co. 17 N. Fourth Sl. Zanesville. Ohio LANG, Samuel G. (E) Harrwood Glass St Metals Co. Box .365. Martinsrurg, W. Va. LAXC. S. M. (W) Nuclear Materials St 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. LANOROD., Kaximir (W) 462 Locust Terr.. West Hempstead. N. Y. (Sylvania-Coming Nuclear Corp.) LANGSTON. Robert B. Univeniry of California Hearst Mining Bldg., Rm. 164 Berkeley 4. Calif. LANIER. William S. (R) Babcock & Wilcox Co. Old Savannah Rd.. Augusta, Ga. LANNES. Eugene M. (RI) 1695 N. Union St., Fostoria, Ohio (Hoeganaes Sponge Iron) Vol. 36. No. 10 (1957) LAPP. Grover W. (MF> Lapp Engineering Co. 68 W. Main St.. Le Rov, N. Y. LAPP INSULATOR CO., INC. (K. E. Stettir.ius) Le Rov, N. Y. LARISCH. Herbert W. iEi 19 Rutgers S:.. E. Hi'l i-Nta:e'> Smithtown. N. Y. Fairchild Engine D:\. LARKIN. Paul G. (D) 250 N. Harrison St.. C~:::|'iici!. Ca::f. (Consultant) L^ROCCA. Frank J. (R) Colorado Fuel & Iron Corp. 3ox 316, Pueblo. Colo. LARSEN. Inge Marie A/S Bing & Grondahl Vesterbrogade. 149 Copenhagen. Denmark L.-YRSON. Edward A. (5) Larson Clay Pipe Co. 9980 Van Dv<e Ave.. Detroit 34, Mich. LARSON. Paul F. (W) 3866 Norman Ave., N. \V. Canton 9. Ohio (Sparta Ceramic Co.) LARSON. Thomas L. (RJ) 971 Pleasant. 3oulder. Colo. (U. S. Navy) LAS EMAN, 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. J. LASSITER. Perry B. (RJ) 3011 Wrighcsboro Rd.. Augusta. Ga. (Babcock St Wilcox Co.) LATCHFORD GLASS CO. i 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.. Ea*t Norriton Tj>. Norristown. ?a. (E. T. Lavino St Co.) LATIMER. Horace L. (Wll 248 Questend Ave. Mount Lebanon. Pittsburgh 24. Pa. (O. Homme! Co.) LATTMER. Trent W. Ohio State University, Baker Hall Columbus 10. Ohio LATTTN. Tudon M. (R) N644 S. Edbrooke Ave.. Dolton, III. (International Harvester Co.) LAUCHNER. Julian H. (E) University of Illinois Deor. of Ceramic Engineering Urhana. III. LAUGHLIN. HOMER. CHINA CO. (T. M. Wells) Newell. W. Va. LAURIE. DOMINIC (RI) Titanium Alloy Mfg. Div.. National Lead Co. Niagara Falls. N. Y. LAUZAU. Wilbur R. (R) National Carbon Co.. Fostoria. Ohio LAWLESS. Emmett A.. Jr. (S) Alton Brick Co.. Box 394, Alton. III. 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. (WI) 153 Momingside Rd.f 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 N. Elm St.. Erwin, Tenn. (Lawson Feldspar & Minerals) LAM TON. Wilbur iG) Lwiitiucntai Can Co.. Inc. Haaci-Atlas Glass Div. 12b Market St.. Zanesville, Ohio l.AYDLN. George X., Jr. Pennsylvania State U r. i v e r s it y 3u.\ 23. Mineral Industrie; L*ni\c*r>icv Park. Pa. LAYNE. Fri A. W j Louthan Mfg. Co.. Box 731 East Liverpool. Ohio LAYSOX. W. G.. Jr. (W* 513 Sterling St., Chattanooga 5, Tenn. American Lava Corp.) LAYTON, Donald R. (GI) Brockway Glass Co., Brockway, Pa. LAZARKIS. Peter J. (W) 37 Fifth Ave., Watertown, Mass. (Raytheon Manufacturing Co.) LEAD INDUSTRIES ASSOCIATION (Robert L. Ziegfeld) 60 E. 42r.d St. New York 17. N. Y. LEAKE. Fred. Jr. (M) Evans Lead Corp.. Box 1467 Charleston 25, W. Va. LEANDER. Karl Johan AB Hoganasmctoder Hoganas. Sweden LEAVER, Stanley (R) 6917 Buffalo Ave.. Apt. 2 Niagara rails. N. V. (Carborundum Co.) LE 3ELL. Rolf Casimir Pargas Kalkbergs Akriebolag A30 Kakelfabrik Slottsgatan 52, ABO, Finland LE3ERKNIGHT. C. E. (GF) Kopp Glass. Inc. Box 8255. Pittsburgh IS. Pa. LeBLAXC. John R. Box 307, Alfred. N. Y. LS3RUN. Paul Ideal-Standard. S. A. Vilvorde. Belgium LEDBETTER. George R. R. R. 2. Box 203. Rolla. Mo. LEDDY, Robert M. (SI) 3ox 128. Hammonton, N. J. (Alliance Gay Product Co.) LEDLOW, Forrest L- (V/l Aatec Ceramics. Inc.. 3ox 337 San Antonio. Texas LEE CLAY PRODUCTS CO.. TNC. (Martin S. Bowne) Gearneld, Ky. LEE, Don W. 20 V/estgate. Cambridge 39. Mass. LEE. Harley C. (RF) Basic. Ir.c.. 345 Hanna Bldg. Cleveland 15, Ohio LEE. James A. (S) Southern Brick St 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. St 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. Lynnrield 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) Coming Glass Works, Corning, N. Y. LEIBSON, J. S. (WI) Insulator Dept., General Electric Co. S. Charles & Cromwell Sts. Baltimore 3, Md. LEIPOLD, Martin H.. Jr. 95 E. 12th Ave., Columbus 10, Ohio Roster 65 LEIStaR, Cra:g r. 334-v 30;h X. W,, Seattle 7. Wash. LE1SEY*. William B. t'O) 615 Elm Avc., Muhlenberg Parle Reading, Pa. i Western Electric Co.) LEITTEN, Carl F. ;R) 50 Hawkir.s Avc., Hamburg. N. Y. (Electro Refractories i Abrasives Corp.) LELAXD, John A.. (E) 13001 Weatherbv Rd. Los Alamitos, Calif. I Douglas A.ircrait Co.) LEM.MER.MAN, Paul C. (R) E. I. du Pont de Nemours & Co., Inc. Grasselli Chemicals Dept. 1331 National City Bank Bldg. Cleveland 14, Ohio LeMUNYON, James S. (E) Tappan Stove Co., 250 Wayne St. Mansfield. Ohio LENCHNER, Theodore (DF) 5158 Beeler St.. Pittsburgh 17. Pa. (Vitro Manufacturing Co.) LENNON. A. G. (W) Canadian Potteries Ltd. 360 Blvd. du Sentinaire . St. Johns, Que., Canada LENNON. John W. (WI) Battelle Memorial Institute 505 King Ave.. Columbus, Ohio LENTZ. Clarence J. (R) Quebec Iron dt Titanium Corp. Box 40, Sorel, Que., Canada LEONARD. Jean (II) 96-24 Corona Ave., Corona 68, N. Y. (Jean Leonard Ceramics) LEOPOLD, Jean H. Leopold & Cie. Pfaffenhorfen. (Bas-Rin), France LEO-WOLF, A. L. (M) Carborundum Co.. Globar Div. Niagara Fails. N. Y. LE?IE._Myron P. 13 . ravis Dr., Chestnut Hill 57, Mass. LEPORE. Donald A. 136 Bridge St.. Roselle Park. N. J. LEPP. Jack M. (S) 1357 Nicholas P!.. Ashland, Ky. (Carlyle Tile Co.) LEHMAN. Leon (3) Syivania Electric Products. Inc. 100 Sylvan Rd.. Woburn. Mass. LESAR. Albert R. (RI) 5C9 Wcodiawn. Mexico, Mo. (A. ?. Green rtre Brick Co.) LESENSKY, Leonard (3) Raytheon Manufacturing Co. Foundry Ave.. Waltham 54, Mass. LESLIE. Ernest R. (R) Norton Co.. Worcester 6, Mass. LESSO. Harold F. (R) 631 Becchmont Dr. Dearborn Hills, Mich. (Great Lakes Sted Corp.) LESTER. Ronald H. (WJI) 3811 Garrison 3Ivd,, Baltimore 15, Md. (General Electric Co.) LESTER. W. Ronald (GF) Hartford-Empire Co. Div. Emhart Mfg. Co. Hartford 2, Conn. LESZL, Matthias "Smalteria e MetaJlurgica Veneta" Bassano del Grappa, Italy LETORT, Marc Yves Centre National d'Etudes et Reeherches Ceramiques 3 Avenue Paul Douraer Paris 16, France LETTER. Eugene C. (BJ) Bausch Sc Lomb Optical Co. Chemical Res. Lab. Rochester 2, N. Y. LEVENGOOD, William C. (G) Ball Brothers Co.. Inc.. Muncie. Ind. LEVETT. Peter D. (W) Arnold Engineering Co., Marengo. III. Vol. 36, No. 10 (1957) LEVI, Ormonde S. (Gi Verd-A-Ray Corp. 615 Front 5t., Toledo 5, Ohio LEVIN. Ernest M. (B) Natrona! 3urcau of Standards Div. A5. Washington 25. D. C. LEVIN. I. i.M) L 3c L Manufacturing Co. 136 Eighth St. Upland. Chester. Pa. LEVINE. Irving L. t.M) 100 Elm Tree Lane. Syracuse 9. 7,'. Y*. (General Electric Co.) LEVY. Dorothy (D) 1212 Lincoln Ave., Highland Park, III. LEVY. Raymond H. (R) 5501 Lynview Ave., Baltimore 15. Md. (Martin Co.) LEWIS, Albert D. (G) Kimble Glass Co., Vineland. N. J. LEWIS. George T. R. R. 1, Rushvilie, N. Y. LEWIS. Gordon (3J) Carborundum Co. Research & Development Div. Niagara Falls. N. Y. LEWIS, Gordon E. (SI) Glen-Gery Shale Brick Corp. Box 86, Shillington, Pa. LEWIS, J. H. (G) Blue Ridge Glass Corp. Kingsport, Tenn. LEWIS. J. M. (W) Abingdon Potteries. Inc. 801 N. Main St., Abingdon, III. LEWIS. John W.. Jr. (R) Dixie Fire Brick Co., Kimberly. Ala. LEWIS. Wiliam C. (G) Big Flats, N. Y. (Coming Glass Works) LEWIS, William N. (G) I-T-E Circuit Breaker Co. 601 E. Erie Ave., Philadelphia 34, Pa. LI3BEY-OWENS-FORD GLASS CO. (George 3. Watkins) 1701 E. Broadway Toledo 5, Ohio LIBERATORS. Laurence C. (G) Taylor Instrument Co. 95 Ames S'... Rochester 1. N. Y. LIBERTY GLASS CO. (Frank ?. Collins) Collins Bldg., Sapulpa. Okla. LIED, Robert C. (B) Argonne National Lab. Box 299. Lament. III. LIEDER, Phillip K. (R) 2600 Dogwood Lane, Norristown, Pa. (E. J. Lavino Sc Co.) LIEDERBACH. William H. (WI) 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.. Coming, N. Y. (Coming Glass Works) LIM. Richard H. Y. Box 1039. Alfred. N. Y. LIM. Yock Lio 3ox 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.. Washington. Pa. LINDENTHAL. James R. Globe-Union Inc., 900 E. Keefe Ave. Milwaukee 1, Wise. LINDENTHAL- John W. (G) Ohio State University Engineering Experiment Sta. Columbus 10, Ohio LINDQUIST. C. Alan. Jr. (BI) Box 613. Conneaut. Ohio (Astatic Corp.) LINDROTH. Stig A. Sve.nska Ackumulator AB. ,'ur.gner Oskarshann, Sweden LINDSAY. Carey I. <3r, Niles Fire Brick Div. Mexico Refractories Co. I> 5 E. Park Ave.. Niles. Ohio LINDSAY. J. Cordon (B) Aluminium Labs. Ltd. Arvica. Que.. Canada LINDSEY, 3er. S. (W.i Mii.vhue Co.. Inc. Box 1503S. Houston 30. Texas 1.1NKHORN. William H. (.W) Ventura Dr.. Dar.ieison, Cor..-.. (American Radiator & Standard Sanitarv Corp.) LINNELL. Robert II. (3) Titanium Zirconium Co. Flemington, N. J. LINSE1S, Max Selb/Bay Gerhard-Hauptmannweg 9. Germany LINTZ. E. H. (WFI) 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 Y'ork 17, N. V. (Consultant) LISKE, Jack 2103tA Carrol Dr.. Raieigh, N. C. LITEN, Alexander F. (G) 178 Norfolk Ave., Swampscott. Mass. (Syivania Electric Products, Inc.) LITHIUM CORP. OF AMERICA. INC. (Walter M. Fenton) 2560 Rand Tower Minneapolis 2, Minn. LITTLE. John M. (S) 120 S. 23th Ave., Hattiesburg, Miss. (Hattiesburg Brick Co.) LITTLETON, Joseph C. (G) 231 Delevan Ave.. Coming, X. Y. (Coming Glass Works) LITTLETON. J. T. (Honorary. GF) Coming Glass Works, Coming. N. Y. LIVINGSTON. Charles Q. (R) Armstrong Cork Co., Lancaster, Pa. LTVOVICH. Andrew F. (R) 337 N. Virginia Ave., Hohart. Ind. (Universal Atlas Cement Co.) L & L MANUFACTURING CO. (I. Levin) 136 Eighth St. Upland. Chester. Pa. LLOY'D, Katherine (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland, CaJit. 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. i'G) 2627 Gunckei 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 J. (G) United Can Sc 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. Hoil) Box 698 Logan, Ohio LOH, Eugene (B) 315 W. Sacramento St. Altadena, Calif. (Consolidated Electrodynamic Corp.) LONDEREE, Joseph W.. Jr. (B) 3918 Warner Ave., Louisville, Ky. (Corhart Refractories Co.) Roster 67 LONG. Bernard Glnces \c BoUsSOIS 22. 3ot:;evard Maiesiicrbes Paris l. Trance LONG, John V. i.G) Solar Aircraft Co. 2200 Pacific Highway San Diego 12. Calif. LONG, Luther L. (G) Owcr.s-Corr.ing Fibergias Corp. Case Ave., Newark, Ohio LONG, Rocer:. Sr. i) American Porcelain Enamel Co. 12S5 E; Keating Ave. Muskegon 26, Mich. LONG, Robert R. (W) National Tile & Mfg. Co. 1200 E. 26th St., Anderson, Ind. LONG, Russell E. (RI) American Encaustic Tiling Co. 1000 Cannon Ave., Lansdaie. Pa. LONG. Wayne M. <W) Syracuse China Corp. 2*>00 C>;urt St.. Svracuse, N. Y. LONGENECKER. Robert .1. (MI) 46 James Rd., Broomall, Pa. (Foote Mineral Co.) LONGFRI7Z. Robert K. iRI) Clearfield Clav Products Co. Box 74*. Clearfield. Pa. LONGING, Ted E. (M) American Clay Forming Co. E. Duncan St.. Tvler. Texas LONGWELL, Burton (E) Republic Steel Cnrp. 1420 Republic Bldg.. Cleveland I, Ohio LOOMIS. David G. (M) Loomi* Engineering & Mfg. Co. R. R. 40. Caldwell. N. J. I.OREY. Frederick D. (GI) R. R. L Hickling Heights Corning. N. Y. (Corning Glass Works) LOREY. G. Edwin (B) Dept, at* Ceramic Engineering Scnoo. of Mines .Metallurgy Rolla. Mo. LOSCO. Alfred G. (B) 27 Paterson Ave., Paterson. N. J. (Kearfot: Co., Inc.) LOUDEN. R. H. (WI) McGean Chemical Co. Midland 3Mg., 101 Prospect Ave. N. \V. Cleveland IS. Ohio LOUGHRIDGE, Frederick A. (G) 19 Kosciusko St.. Peabody, Mass. fSvIvania Electric Products. Tnc.) LOUTHAN MANUFACTURING CO. (Fred A. Laynet Box 731 East Liverpool. Ohio LOVE. L. G. (G) National Lime Se Stone Co. First National Bldg.. Findlay, Ohio LOVELAND. Edward W. (M) 504 79th! St.. North Bergen, N. J. (Preferred Plastics, rnc.) LOVELL, George H. 3. Silwood Ceramics. Box 152 Bergvlei, Johannesburg, South Africa LOVENBACH. J. Glaceries de Saint Roch 5. A. SO. rue du Luxembourg Brussels. Belgium LOVETTE. Paul V.. Jr. (R) R.R. 1. Painted Post. N. Y. (Corning Glass Works) LOWE. Earl C. (SI) Box 46 Logan. Ohio (Straitsville Brick Co.) LOWE. Edwin C. (R) 405 Sarah St.. Chippawa, One.. Canada (Norton Co.) LOWE. George K. (RI) Charles Taylor Sons Co. Heights-Rockefeller Bldg., Rm. 210 Mayfield`at :Lee, Cleveland 18, Ohio LOWE. William S. (R) A. P. Green Fire Brick Co. 1018 E. Breckenridge St.. Mexico, Mo. Vou 3fi, No. 10 (1957) LOWER. Clarence 0. i i New Bethlehem Tiie Co. all Lafayette St.. New Serhiehein. l*.i LOWER. David H. Box JOS, Alfred. N. V. LOWER, Lloyd C. (S) 227 Washington 5:. New Bethlehem, Pa. (New Bethlehem Tile Co.) LOWER. Lloyd. Jr. i SJ) New Bethlehem Tile Co. New Bethlehem. Pa. LGWRANCE. Robert T. (W Jackson Tile Manufacturing Co. Box 2006, Jackson. Miss. LOZANO. Jaime (G) Vidriera Monterrey. S. A. Colombia No. 266 Monterrcv. N. L.. Mexico LU3ALIN. Irwin (R) British Industries Corp. 50 Shore Rd.. Port Washington. N. Y. LUCAS. Howard R. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7. Ohio LUCAS. Joseph M. (W) 1431 Broad Blvd. Cuyahoga Fails. Ohio (V. S. Stoneware Co.) LUCEK. John R. (M) 51 Bushey Rd.. Pittsfield. Mass. (General Electric Co.) LUC I ER. Arthur E. 704 Runnvmede Rd.. Raleigh. N. C. LUDOWICT. Johann W. Carl Ludowici K.a.A. Co. Jockgrim Rheinnfalz. West-Cermanv LUDWIG. David W. (GI) Pittsburgh Plate Glass Co. One Gateway Center Pittsburgh 22. Pa. LUDWIG. Urban W. (G) 232 Peach Orchard. Dayton 9. Ohi* (Univis Lens) LUZDZR5. Roland (M) 3241 Bradford Rd. Cleveland Heights 18. Ohio (Ferro Corp.) LUKRS. Miller E. (G) Lihbey-Owens-Fnrd Glass Co. 1701 E. Broadwav. Toledo. Ohio LUXS. Daniel W. f\VI) Star Porcelain Co. Muirhead Ave.. Trenton 9. N. T. LULL. Stanley E. (RI) 33-3 Park Ave.. Worcester 5. Mass. (Bay State Abrasive Products Co.) LL'NAK. Thomas E. (WI) Globe-Union Inc.. Centralab Div. O0 F.. 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. Ohii> (Central Commercial Co.) LUND. Me'vin S. (M) 426 E. State St.. Alliance. Ohio (General Color & Chemical Co.. Inc.) LUND. Randolph A. (RJ> 1717 W. 105th St.. Chicago 43. III. (United States Steel Corp.) LUNDE. Marvin 245 E. Third St.. Watsonville. Caiif. LUSHER. Gerald H. (R) Norton Co.. 5905 Pacific Blvd. Huntington Park. Calif. LUX. John H. (R) Have* Industries. Inc. 900 Greenbank Rd. Wilmington 3. 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. >. I !, D. t W s (. ;ii\ of 1111:uji> Dept, of Ceramic Engineering 204 Ceramics 3lug . Urbana. LI. LYNCH. James F. (K 1 Pat telle Memorial ' n>tj:utt 505 King Ave.. Columbus I. Ohio I. Y C11. Jh:i F. < W ) Washington 31v:.. c ink I'ark. 111. i Limil.'crg Engineering C".i LYNSAYAGE. Waiter F ;G \ J'. 0 Arnold Ave.. Port Allegany. Pa. .Pittsburgh Corning Corp ) LYON. John 3. (S) Acme Brick Co.. Denton. Texas LYON. Kenneth C. (GF) 357 E. Washington St.. Dunkirk, (nd. (Ball Brothers Co.. Inc.) LYONS. Clifford T. (W> 9825 Bowman Blvd., Daila- 20. Texas (Trinitv Ceramic Supplv Co > LYONS. S. C. (M) Georgia Kaolin Co. Drv Branch. Ga. LYTLE. Jack A. (Bl) 50S E. Green Tree Rd. Mil waukee 17, Wise. (Allen-Bradley Co.) LYTLE. W. O. (G) Pittsburgh Plate Gln*s Cn Research Lah., Creighton. Pa. LYTTLE. Frobisher T. (W) 1031 Findley Ave., Zanesville. Ohio (Mosaic Tile Co.) Me McADOO. D. Parker (M) .1. M. Huber Corp. 100 Park Ave.. New York. X. Y. MCALLISTER. Christopher (GI) Box 231. Clarksburg, \V. Va. (Pittsburgh Plate Glass Co.) McALPINE. Kenneth 3. (G) General Electric Co.. Large Lnnm i)cpr. Incandescent Lamp Advance E::gr. ---36 Nela Park. Cleveland 12. Ohio McASKILL. James I. (W) 311 King St. W. Kingston. Ont., Canada t Fronter.ac Floor 3c Wail Tiie Co. Ltd.) McAULEY. James W. (G) 2334 Sherwood Rd.. Tniedn. O'n'n (Libbev-0wens-Ford Glass Co.) McBRAYER. Robert D. Box 4276. State College >*a. Raieigh. N. C. McBREEN. Kenneth L. (W) Bux i8nn. Richmond. Calif, i American--Stand.ird) McBURNEY. John W. (Sr) 1543 N. Falkland Ln. Silver Spring, Md. (Consultant) McBURNEY. William C. (D) R. R. 5. Easthrook Rd.. New Castle. Pa. (Shenango China. Inc.) McC.MX. Kenneth B. (R) Wilbur B. Driver Co. 1375 McCarter Hwy.. Newark 4, N. J. McCAMMON. Tames W. (M) Dent, of Mines. Parliament Bldgs. Victoria. B. C.. Canada McCANN. D. M. (WT) Akmn Porcelain Co.. Akron 14. Ohio McCANN. Sidney W. (El) Pfatidler Co. 1000 West Ave.. Rochester 3. N. Y. McCARTT. Kenneth C. (W) 1408 Delaware Ave., New Castle. Pa. I Universal-Rundle Corp.) McCI.AlN. Louis R. (S) Box 72. Palmer. Texas (Barron Brick Co.) MeCLAVE. James W. (SI) Box 508, Toronto. Ohio (Peerless Clay Corp.) McClelland, Roland h. cwn Globe-Union Inc., Centralab Div. 900 E. Keefe Ave., Milwaukee, Wise. Roster 69 McCLURZ. L:. Citfton M. ; KJ) Bo.\ Bryan A:r Force B:i-c 3 ran. Texas McCOLLOM. Perry C. (RD American Refractories 4 Crucible Corp., North Haven. Conn. McCONAUGHA. Wayne H. (Si Xatco Corn . Bi'X 1656 Zas: Canion JO. Ohio McConnell, g. ? twi Mosaic Tile Co.. Zanesville. Ohio McCO R M ACK. James S. iRJ.' Corning Class Works Refractories Div. Coming, N. V. McCOR.MACK, Kenneth J. (G> 71/ Colima Dr., Toledo 9. Ohii(Owens-Illinois Technical Center) McCORMICK. John M. (G) 1327 Richards Rd., Toledo 7, Ohio (N'aniioa Corp.) McCORMICK, Stewart \V. (RI) Corhart Refractories Co. 1600 '.V. Lee 5t.. Louisville, Ky. McCOY, Nelson (W) Neison McCoy Pottery Co. Roseville. Ohio McCOY, NELSON, POTTERY CO. fNelson McCoy) Roseville, Ohio McCREERY. George L. (W) 393 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) McCREIGHT. Louis R. (R) General Electric Co. 3198 Chestnut St., Philadelphia, Pa. McCL'LLOL'GH. James D. (R) Babcock 4 Wilcox Co. 161 E. -12nd St.. New York 17, N. Y. McCUNE. Samuel E. (R) United States Steel Corp. Gars* Works Res. Lao. 99R Gary, Ind. McDANEL. Donald W. (W) McDanel Refractory Porcelain Co. 510 Ninth Ave.. Ecaver Palls, Pa. McDANEL. Melvin W. (W) R.R. 2, Eastvale Rd. 3eaver Fails. Pa. (McDanel Refractory Porcelain Co ) McDANEL. Sumner W. (31) R. R. 2. Beaver Falls. Pa. (McDanel Refractory Porcelain Co) McDaniel, l. l. (r> Phelps Dodge Carp. Morenei Branch. Morenci. Aria. McDERMCTT, .'antes J.. Jr. (C) 136 William St.. New York 58. N. Y. (Consultant) McDonald, c. h. is) West Bros. Brick Co. 6600 Sheriff Rd.. X. E. Washington 27. D. C. = McDonald, e. f. cei) Ingrara-Richarcson Mfg. Co. j 3eaver Falls. Pa. I McDONALD, Howard A. (R) | 12202 E. 19th Ave.. Spokane 63. Wash. I (Kaiser Aluminum & Chemical Corp.) McDOUGAL, Taine G. (WFI) 1117 South Dr.. Flint 3. Mich, and Ha'penny House Somerset Bridge, Bermuda McDOWALL, Ian C. New Zealand Pottery 4 Ceramic Research Assn., Inc. Private Bag, Lower Hutt. New Zealand McDowell, j. Spotts (RF) Webster Hall Hotel 4415 Fifth Ave.. Pittsburgh 13. Pa. (Harbison-Walker Refractories Co.) MeDOWELL. Samuel J. (BFI) S2 Elm Ave.. Metuchen, N. J. (American Lava Corp.) MeELROY. R. H. (MI) International Clay Machinery Co. 114S Bolander Ave.. Dayton 1, Ohio HcEVOY. Robert J. (RI) 2234 Berdan. Toledo 13. Ohio (Owens-Coming Fiberglas Corp.) ol. 36. No. 10 (1957) McGEAN, Ralph L. (Ei Midland BUg.. 101 Prospect A.vc.. NAV. Cleveland 15, Ohio (McGean Chemical Cp.) MeOEZ. Thomas D. (R) Iowa State College Ceramic Engineering Dept.. .Ames Iowa McGinnis, r. a. iwi Amertcan Lava Ccrp. Cherokee Blvd. It Mfgts. Rd. Chattanooga 5, Term. McGOH.AN. G. William (Zi Armco Steel Corp., Middletown, Ohio McGOLPIN. Wiiliam C. (S) Rm. 403. 5 7 Bloor St.. W. Toronto 5, Ont., Canada (N'atco Clay Products. Ltd.) McGRAW. Deiford A. (G) 4117 Graeeway, Toiedo 5, Ohio (Owens-Illinois) McGREGOR, Frederick B. (M) Great Lakes Foundry Sand Co. 720 United Artists Bldg. Detroit 26. Mich. McGREGOR. Jimmie R. 1604 N. W. Third Ave. Mineral Wells. Texas' McHOSE. Donald G. (M) Such Cay Co., Box 47 Perth Amboy, N. J. McHOSE, M. it.. Jr. (M) Such Gay Co., Box 47 Perth Amboy. N. J. MclLWAIN, Eugene M. (R) 3513 Huron Dr., Louisville, Ky. (Coming Glass Works) McINTOSH. C. M. (W) Radio Materials Corp. 1708 W. Belmont Ave.. Caicago 13. 111. McINTOSH, Harold W. (G) American Window Glass Co. Farmers Bank Bldg., 20th Floor Pittsburgh 22, Pa. MclXTYRE. G. H. (EFI) National Spcetrograchic Laos.. Inc. 6300 Euclid Ave.. Cleveland 3, Ohio McKAIG. W. Wallace (R) Cumberland Sceel Co. 3ox 28. Cumberland, Md. McKANE. John W. (R) 257 Chesterneid Ave. Glen Ellyn. III. (Foremost Foundry Supply Co.) McKEAND. Irvin J. (WI) Minneapolis-Honevwetl Regulator CoResearch Center 500 Washington Ave. S. Hopkins. Minn. McKEE. William D.. Jr. (B) 1017 Ridge Rd.. Lewiston. N. Y. (Carborundum Co.) McKEEN. Richard D. (WI) Sweet Hill Rd.. Plaistow. N. H. (Western Electric Co.) MeKEOWN. J. Duncan (R) Box 137 Burnet Woods Station Cincinnati 20, Ohio (Carborundum Co.) McKEOWK. Thomas H. (M) 234 Middlesex Ave.. Metuchen. N. J. (E I. du Pont de Nemours 4 Co.) McKINLEY. Robert F. Box 295. Alfred, N. Y. McKINNEY. 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 MeKULLA, George W.. Jr. 4711 17th N. E.. Seattle 5. Wash. McLACHLAN, Eugene K. (R) 462 Southmont Blvd., Johnston. Pa. (Bethlehem Steel Co.) McLAIN WORKS. REFR. DIV. H. K. PORTER CO.. INC. (Lawson E. Mason) Wellsville, Ohio McLAREN. Henry D. (E) Ferro Enamels (Canada) Ltd. Box 57, Oakville, Or.t , Canada McLAREN. John (M) Bex 75. East Liverpool. Ohio (3eil Research Labs.: McLAREN. Maicoirt: G. Rj Paper Makers Importing Co. 44 S. Second St.. Easton. Pa. McLaughlin. John l. cei 564 S. Craig ?!.. Lombard, ill. (Allied porcenell Ir.e.) McLaughlin. Joseph k. cwi.i Red Wing Potteries. Ir.c. Red Wing, Minn. McLaughlin, wiiiiam k. (R) Alsey Brick 4 Tile Co., Alsev, III. McLEAN, William E. (3) Electra Manufacturing Co. 800 N. 21st. Independence. Kans. McMAHON, John F. (XF1) Alfred. N. Y. (State University of New York College of Ceramics, at Alfred Univ.) McMAHON. John F.. Jr. (G) 645 S. Cannon Ave., Lansdale, Pa. (Lansdale Tube Co.) McMASTER. Harold A. (G) Permaglass, Inc., Box 195. Sta. A. Toledo 5. Ohio McMULLEN. 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. (RJ!) 72 Mapie Ave.. Wellsville. N. Y. (State University of New York. College of Ceramics) McNamara, e. ?. (wfd 73 Ritchie Ave.. Cincinnati 15. Ohio (Cambridge Tile Mfg. Cp.) McNamara. Edward P.. Jr. (RJ) Box 07, Alfred. N. Y. (Corning Glass Works'! Mc.NAMARA. Richard 3. (R) 11 Janet St.. Buffalo 15. N. Y. (Electro Refractories 4 Abrasives Carp.) McNAUGHTO.Y. Ronald R. (R) Central Technical Library Consolidated Mining 4 Smelting Co. of Canada. Ltd.. Trail. 3 C.. Canada McQUARRIE. Maicoim C. (2> 124 E. Lytle Ave.. State College. Pa. fpennsvlvania State Ur.iversitv) McRITCHIE. Frank H. (R^ Mellon Institute. 4400 Fifth Ave. Pittsburgh. Pa. McRORY, Glenn L. (M) New Jersey Zinc Co. 1007 National City Bank Bldg. Geveland 14, Ohio McTAGGART. G. Don (R) Coming Glass Works, Coming. N. Y. McVAY, T. N. (BFI) 10 Oakwood Court. Tuscaloosa. Ala. (U. S. Bureau of Mines ) McWALTER. H. G. (R) Laclede-Christv Works. Refr. Div. H. K. Porter Co.. Inc. 2000 Hampton Ave., St. Louis 10. Mo.. McWilliams. Robert j. (En Pfaudler Co. (Elyria Div.) Taylor St., Elyria, Ohio M MacALPINE. William M. (G) 357 E. Main St.. Somerville. N. J. (Johns-Manville Research Laboratory)- MacAVOY, Thomas C. (G) 234 Chemung St.. Corning, N. Y. (Corning Glass Works) MACCALOUS. Joseph W. 4855 University Ct. Niagara Fails, N. Y. Roster 71 MacDONALD. James . (R) Mcreciy Brick Div. Genera) Refrac:ories Co., Larrooe. Pa. MacDQNALD. R. W. (Wl) Florida ::lc Industries. Inc. Box 451. Lakeland. Fla. MACZR. W E. (M) Carborundum Co.. Globar Div. Niagara Falls. N. V. MacGI3BON, Richard John G. Stein St Co., Ltd. Manuel Works Nr. Linlithgow, Scotland MACH LAN. G. R. (G) Owens-Coming Fiberglas Corp. Newark. Ohio MacINTYRE. Donald J. (W) R.R., Piffard, N. Y. (Lapp Insulator Co., Inc.) MACKASZK. Edward (EF) 1722 19th Sc.. N\ W., Apr. 702 Washington 9. D.'C. (Porceinin Enamel Institute) MACKENZIE, James United Steel Companies Ltd. Research & Development Dept. Swinden House, Moorgate Rotherham. Enaland MACXLIN CO. (Richard O. Lane) 2917 Wildwood Ave.. Jackson, Mich. MacLEOD. John Lrnited Fireclay Products. Ltd. 140 W. George St. Glasgow, C. 2.. Scotland MacNElL. S. Ambrose Deznerara 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 i'R) 3815 Highland Ed. East St. Louis. 111. (Alcoa', Research I.nh* ) MADDEN., Robert C. (3) 315 Pirn St. Saalt Ste. Marie. Ont., Canada (Algoma Steel Corp.. Lrd.) MADDOCK. A. M. <W) R. R.. Washington Crossing, X. J. (American---Standard) MADSEN, Leu* Egii Box 4208. Sandakervn 109/III Oslo. Norway (A/S Den Xorske Slioeskivetabr.) MAGAZINE. Arnold L. (G) CBS-Hytron Corp. 100 Endicort St.. Danvers. Mass. MACID. H. S. (WI) 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 Gay Mines Corp. 101 Oakland St., Trenton 6, N. J. UAHIER, Lois W. (D) 4535 Harding Blvd. Baton Rouge 7. La. (Southwestern Louisiana Institute) MAHONEY, David L. (RJ) .32! Bamcoat St.. Worcester, Mass. (Norton Co.) MAHONEY. Frank B. (E) Richmond Radiator Co. Box 111, Memchea, N. J. VOL. 36, No. 10 (1957) MAI SAC. ,c*.rgc W . S> 1 Kcfract'irie:* C<j.. !iic. Box JJJ. Sar. Parcel. Calif. MAiTRA. Branch K. L'itv cr?*ity of L'tah. 220 Mires 3U!g. Sal: Lake City. Utah MAJZSXE, Joseph (G> T. C. Wheaton Co. Millville, X. J. MALM. Arthur T (Rl 233 Beverly Ru., Worcester 5, Mass. (Norton Co.) MALOOTIAN. Markay H. (B) 405 Mohegan Ave.. New London. Ccnn. (U.S.N. Underwater Sound Lab.) MALVERN BRICK & TILE CO. (George B. Eyerly) Box 415. Malvern, Ark. MALYSIAK, Chester (G) 1027 Hickory, Perrysburg, Ohio (Owens-Illinois) MANDEL, Charles J. (WI) Willette Corp. or New Jersey Codwise Ave. St Reed St. New Brunswick. N. J. MAXDLE, Richard M. (G) Davison Chemical Co. Box 488. Pompton Plains, N. J. MANN, George H. (G) Lake Salubria. Bath, X. Y. (Coming Glass Works) MANNING. Franklin K. (W) American Radiator Standard Sanitary Corp.. 6920 Franklin Ave. New Orleans 22, La. MANNING. R. Douglas (D) Harker Pottery Co. East Liverpool, Ohio MANOUSEK, Miioslav Delnicka 27 Praha VII, Czechoslovakia MANRING, William H. IG) Calumite Co.. Box 151 Hamilton. Ohio MANSFIELD SANITARY. INC. (Perrv E. Dracer; PrrrvFville. Ohio MANZ, Oscar E. (B) Box 516, University Station Grand Forks. N. D. (University of North Dakota) MARCH, Joseph W.. (S) Nova Scotia Technical College Halifax. N. S.. Canada MARCUS. Leon (El) 5A Onondaga Pky. Apts. Liverpool Rd.. Liverpool. X Y. (General Electric Co.) MARCYN. Chester A. (E) 2202 S. Kensington Ave. Westchester, 111. (Chicago Vitreous Corp.) MARGOLIS. David (R) 39 Glenwood Ave.. New Rochelle. X. Y. (Fish-Scburman Coro.) MARGRAVE. John L. (B) University of Wisconsin Dept, of Chemistry, Madison 6, Wise. MARK. Stanley D.t Jr. (R) 1592 Love Rd., Grand Island, N. Y. (Carborundum Co.) MARLOW. James A. <\V) Crane Ltd.. Box 70 Montreal. Que.. Canada MAROXEY. Dorothy M. Box 457. Alfred. X. Y. MARQUIS. John E. (W) Pemco Corp.. Res. St Dev. Lab. 560! Eastern Ave., Baltimore 24. Md. MARSHALL. Darwin (B) Electro Metallurgical Co. Metals Research Labs. Box 580. Niagara Falls. N. Y. MARSHALL, Leslie H. (R) L. H. Marshall Co. Box 4857. Sta. 3. Columbus 2. Ohio MARTIN. Albert E. (M) Almar Specialty Machines Ltd. Maole, Ont.. Canada MARTIN. Oyde (W) Clay-Burn Tile Co. Box 618. Palestine, Texas MARTIN, Francis W. iG) 101 Hornby Dr. Painted Pas:, N. Y (Corning Glass Works) MARTIN, James K. (M) 1063 Helen Ave., Lancaster, Pa. ( Poscv Iron Works, Ir.c.) MARTIN. John R., Jr. (W) Monongaheia Power Co. 920 Charles St.. Wellsburg, W Va. MARTIN. Lang C., Sr. >5) Martin Brick Co. Box Coleman. Texas MA.RTIX, Leonard A. (W) Martin Ceramic Supply Co. 8901 Rainier Ave., Seattle 3. Wash. MARTIN, Ralph K. (\VI) Vernon Kilns 2J10 E. 52nd S:., Los Angeles 53. Calif. MARTIN, Wesley G. (EF) 6054 N. Kent Ave. Milwaukee 17, Wise. (A. O. Smith Corp.) MARTINO. Paul D. (SJ) Cannelton Sewer Pipe Co. Canneiton, Ind. MARTINSEN, Rodney . (Ml Timken Roller Bearing Co. 1835 Dueber Ave., S. W. Canton 6. Ohio MARTZ. Joseph A. (R) 535 Riverside Ave., Wellsville. Ohio i McLain Works. Refr. Div. H. K. Porter Co.. Inc.) MARVEL, Irvin L. (R) Johns-Manville Corp. 742 Miners Bank Bldg. Wilkes-Barre, Pa. MARVIN, Charles G. Box 787, Alfred, X. Y. MARWAHA, Kidar N. Burn St Co., Ltd. Refractory St Ceramic Works Box 13, Jabalpur 1, India MARX. Le Roy J. (S) Denver Terra Cotta Co. 135 Tejon St.. Denver 23, Colo. MARYLAND GLASS CORP. (L. C. Roche) 2147 Wicomico St. Baltimore 30. Md. MASKILL. William Webb Corbett. Ltd. Coalboumhii! Glass Works Stourbridge. Worcester, England MASON. Cecil R.. Jr. S7S Courtenay Dr., N. Z. Atlanta 6. Ga. MASON CITY BRICK & TILE CO. (C. F. Garland) Mason City. Iowa MASON. Frank (W) Thomas Works Delta-Star Electric Div. H. K. Porter Co.. Lisbon. Ohio MASON. Lawson E. (R) McLain Works. Retr. Div. H. K. Porter Co., Inc. Wellsville. Ohio MASSENGALE. Gordon B. (RI) 553 Audubon Ave., Pittsburgh 34. Pa. (Harbison-Walker Refractories Co.) MASSON, R. Porzellanfabrik Langenthal A. G. Langenthal. Switzerland MATCHULAT. John G. (R) Buffalo Rd., R.R. 2 East Aurora, N. Y. (Electro Refractories St Abrasives Corp.) MATEJCZYK, John F. (E) 7506 Trevanion Ave.. Pittsburgh 18, Pa. (O. Hommel Co.) MATERIALI REFRATTARI SOC D.AZIONI (J. Charles Mathon) Via Elia Lombardini 13 Milano 744. Italy MATHENY, Richard E. (S) R.R. 7, Box 307, Birmingham, Ala. (Natco Corp.) MATHER, Mrs. Katharine (B) Waterways Experiment Sta. Drawer 2131, Jackson, Miss. Roster 73 M A T H I Ai. Simao Rja Fernandes Borgc> 544 (Vila Pautiscaj. Sao Paulo. Brazil (Uruversidade Je 5ao Pauio> MATHIASE.V, 0. E. (S) Federal Seaboard Terra Co::a Cory. Box 301. Perth Amboy, N. J. MATHIESON. George W. (G) 2253 Cast:ewoo<i Dr., Toledo 13, Ohio (Kimble Glass Co.) MATHIESON, Rcbl'in M- (R) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. MATH I EL*. Louis A. Parra Mantois, 11 Chemin de Ronde Le Vesinct (S&O) France MATHON. J. Charles Material! Refrattari Soc. p.Azioni Via Elia Lombardini 13 Milano "44, Italy MATSON. Frederick R. (GI) 72J Jackson S:.. State College, Pa. (Pennsylvania State University) MATTESON. Gilbert D- (W) Engineering Library Scintilla Div., Bendix Aviation Corp. Sidney. N. Y. MATTIMOE. Paul T. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5. Ohio MATTISON, William F.. Jr. (GI) R.R. 3, Lawson Dr., Madison. Conn. (L:bbey*Owens-Ford Glass Co.) MAU. K. T. (S) Gaspro. Box 2454, Honolulu. Hawaii MAUPIN. Addison (RI) 721 Yale Ave., Terrace Park, Ohio (Charles Taylor Sons Co.) MAUPIN. Floyd M. (R) 327 Jefferson Rd., Mexico. Mo. (A. P. Green Fire Brick Co.) MAURER. James A. (E) 5519 N. Lake Dr., Milwaukee 11, Wise. :MAURER. Robert D. (G> Coming Glass Works. Corning, N. Y. [MAUSER. H. W. I Spoorsingei 63. Delft. Holland ! (Royal Delttware Manufactory) MAVOR, Wilfrid (E) Ferro Enameis (Canada) Ltd. Oakville, On:.. Canada MAXSON. Elwyn L. (M) 3ox 53. Lawndale, Calif. MAY. L. F. (S) Standard Ultramarine Sc Color Co. Huntington IS. W. Va. MAYER. Walter S. (W) Mayer China Co. 3ox 561, 3eaver Fails. Pa. MAYFIELD. ManviUe J. (WI) 1827 AubumdaJe Ave. Chattanooga 5. Tenn. (American Lava Corp-) MAYNARD, Frederick H. (G) Coming Glass Works 1 Jackson 3r.. Wellsboro, Pa. HAYS. George A. (S) Box 63, Niles. Calif. (California Pottery Co.) fEDERT. Warren C. (GI) 5320 Melvin Dr., Toledo 14, Ohio (Owens-Illinois) IEEKA. Edward (SI) 13141/J E. Harvard Sc. Glendale 5, Calif. (Gladding, McBean & Co.) IEGLES, John E.. Jr. (G) 7 Washington St., Box 148 Cokeburg, Pa. (Coming Glass Works) IEID. William J. (R) R. R. 1, Bartlett. III. (Lindberg Engineering Co.) CEILING. Gerald S. 1128 Lorraine Dr. Salt Lake City, Utah [EINDL. Joseph J. 601 W. University, Urbana, III. pOL. 36. No. 10 (1957) MEIN KEN. Robert H. ^ B j 29 Myrtle Ave. North Plainricid. N. J. < Bc:l Telephone Libs.) ME.'RESONNE, Arthur C (G) 7G0 Village Dr.. Columbus is, Ohio (Kimble Class Co.) MELOY, C. L. (RI) Res. Dept., Em. A4Q6 3eth!ehem Steel Co.. Bethlehem. Pa. MENG, Edwin R. (R) National Carbon Co. Box 6037, Cleveland 1. Ohio MENGSHOL, Qarence O. (E) American Radiator 4 Standard Sanitary Corp. 1039 Essex St., Richmond. Calif. MENS'IE. Alan J. 641) Fulton, Palo Alto. Calif. MENTZER. Merle J. 106 E. Springrield Ave. Champaign, III. MERBLER. Wallace (G) 56 W. Corydon St.. Bradford, Pa. t Corning Glass Works) MERCER. James W. 3246 Lambeth Circle. Doraviile. Ga. MERCK. Walter J. (RI) 25 Addison Dr., Short Kills. N. J. t Minnesota Mining St Mfg. Cu.) MEREDITH. Edward J. (RI) Box 1533, Birmingham 1, Ala. (Universal Atlas Cement Co.) MEREDITH. Neil F. (RI) Box 23IG. R.R. 2, Tiffin, Ohio (Basic, Inc.) MERIWETHER, B. Corbin (W) Deena Products Co., Arlington, Ky. MERLINI, Ing. Francesco Colonnata, Florence, Italy MERRIAM. Jack G. (WI) 727 N. Wildwood, Mundelein, III. (Titanium Allay Mfg. Div., National Lead Co.) MEERIMAN, Seth 0. (G) 2722 Lincolnshire Blvd. Toledo 6, Ohio (Owens-Illinois. Kimble Div.) MERRITT. Clarence W. (WFI) Box 464, Alfred. N. Y. (State University of New York College of Ceramics, at Alfred Univ.) MERRITT. Lester M. (XI) 654 Wilson Ave.. Coiumbus 5, Ohio (Industrial Ccm.T.ission of Ohio) MERRY. E. 3.. Jr. (SI) Merry 3ros. Brick 4 Tile Co. 41$ Masonic Bldg., Augusta. Ga. MERWIN, Byron W. (W) Parkway Rd., R. R. 2 East Liverpool. Ohio (Hail China Co.I MERE. Kenneth M. R. R. 1. Niagara Pky. Xiagara-on-the-Lake. Ont.. Canada MESSIER, Donald R. Box 757, Alfred, N. Y. MESSIMER, Laverrte A. (GI) Holophane Co.. Newark, Ohio METAL 4 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 ?. Wright Air Development Center High Temperature Materials Sect. Wright-Patterson AFB, Ohio MEXICO REFRACTORIES CO. (C. A. Smith) 3cr.er Refractories Bldg. Mexico, Mo. MEYER, George W. (G) Glenshaw Glass Co.. Inc. Glenshaw. pa. MEYER. G. Reiter: iGi 313 Daniel- S:.. Toledo '. Ohio < Libbev-1 .tv. cits-Ford Glass Cc. MEYER. L. S. iSi Hydrauiic-Press Brick Co. 795 Olive S:.. St. Louis 1. Mo. MEYER. William W. (Wi 69 11 General Dv:i Dr. Falls Church. Va. tU. S. Tariff Commission* MEYERHOFER. E. A. Meverhofer 4 Co.. Forchstrasse 2 Zurich 32, Switzerland MEYER-SCHOLER. Hans Carl Spittelerstrasse 1 LiestaJ, Switzerland (Tonwerk Lause.n AG) MEYSEL, John J. Refracton Ltd. Zurich 2 Cenferstras5e. Zurich, Switzerland MICHAEL. Frank L. (El) 31 iLrNarbourr.e Blvd., St. Matthews Louisville 7, Ky. (General Electric Co.) MICHAEL. Haroid J. (E) 4446 St. Margarets Lar.e Columbus I J. Ohio (North American Aviation. Inc.) MICHALSKI. Casmir (E) 3362 W. 31st St.. Cleveland 9, Ohio MICHEL. Howard (E) Porcelain Enamel. Inc. 30 S. Dover, Denver 15. Coio. MICHEL. S. Etablissemer.ts G. Devtneau 26. rue Lafayette. Paris 9*. France MICHELOTTI, Joseph E. (El) Alcoa Club, New Kensington. Pa. 'Aluminum Co. of America) MICHENER. Jo.-.n William (G) Research Laboratory Owens-Coming Fibergia- Corp. Newark. Ohio MICXWITZ. Alexander von (3) 701 Main St.. Latrobe. ?z. (Stupakou Div.. Carborundum Ca.) MIDDLESWARTH. Earl T. >G) 7 Moody S:.. Amesbury. Mass. (CBS-Hvtron) MIDDLETON, George J. (M) L. H. Butcher Co. 3623 E. Olympic Blvd. Los Angeles 23. Calif. MIDGETTE. Willard 3. (M) Eagle-Picber Co.. Chemical Div. 1501 Oliver 31dg.. Pittsburgh 22, Pa. MIKE. Thomas M. (GJ) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7. Ohio MIKLOUCICH. Frank (S) Huntsville Brick 4 Tile Co., Inc. Box 53. Huntsviile. Ala. MILANI. Helio 4216 Jennings Rd.. Cleveland 9, Ohio MILDWOFF. Ben (G) Bent Glass Works, Inc. 3S-25 126th St. Richmond Hill 13, N. Y. MILLAR, N. S. C. Frit Factory Radiation Group Sales Ltd., Grappenbal 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. Roster 75 MlLLLIl. F.umuml H. 1MI1 .Ur.vf Brick Co., MilLasc Tr^;^ MILLER, E. R. (W) VV'aihtngton Porcelain Co. Willow St.. Washington, N. j. MILLER. Fred W. (R) Frar.klin Manor, 11+ Franklin St. 3l<ig. 3. Apt. B-2, Morristown. N. .1. (Carborundum Co.) MILLER. Grant E. (El) Ferro Corp., +150 E. 36th St. Cleveland 5, Ohio MILLER. Harold (E) 5756 N. Talinan Ave., Chicago +5. III. (Ohmite Mfg. Co.) .MILLER, Harold D. (M) 139 Circle Dr., Plandome Manor Long [aland, N. Y. (3. F. Drakenteld & Co., Inc.) MILLER, Henry E. (R) Chicago Wheel & Mfg. Cu. 1101 W. Monroe St., Chicago +'>. HI. MILLER, Howard L. (GW Libbey-Owens-Ford Glass Cu. Box +-'73. Charleston, W. Va. MILLER, James L. (R) 131 peach St., Parle Forest. 111. (Norton Co.) MILLER. John B. (MI) Third Si.. Lewiston, N Y. (Titanium Alloy Mfg. Div.. National Lead Co.) MILLER. John W. (W) New Castle Refractories Co. New Castle, Pa. MILLER. Lt. Marlin, Jr. t KJ) 02233709. Hdq. NACOM-- Finance i Acct. APO 757. New York, Y. MILLER. Maurice. Jr. i.Mi +8-1 E. Beechwold Ave. Columbus 1+, Ohio MILLER. Ralph E. (Gl 565 Glen Ave., Elmira. N. Y. : Corning Glass YVorksy MILLER. Robert A. (GF) I2II Carlisle St.. Tarenturn. Pa (Pittsburgh Plate Glass Co.) MILLER. Russel A. CRD 251 E. Rockland St. Philadelphia 20. Pa. (Luketi' Steel Co.) MILLER. R. W. (Gl Columbia-Southern Chemical Corp. Cne Gateway Center. Pittsburgh 22. pa. MILLER. Vincent P. (M) Miller Pottery Engineering Co. 2300 Palmer St. Swissvale, Pittsburgh 13, Pa. .IILLER. W. D. (G) Owens-Illinois. Box 1019 Oakland +, Calif. M ILuMAN. Nathan -M; j. M. Kubcr C'-ro., Hnl'cr MILLS, G. Alexander t B i KouJry Procc.w Corp . 3os Marcus Hook. Pa. MILLS. R. Herald ill '.ctieral F.Jccr.-ic Co. Yar.cci:<,t. Atomic Lab. 3'i.t yan iVca>anton. Calii- MILTON BRICK CO.. LTD. . D. T. Green) Box 55 + Miiron. Onr.. Canada MILTON. H. C. i M ) American Cyanantid Co. .!*> Rockefeller Plaza. New hork, X. \ MINARD. Richard A. (3) Brookheid Engineering Labs., i.nc. 2+0 Cushing St.. Stoughton, Mass. MINER. Reginald R. (R) Wondbridge Ave.. Mctttcheit, N. J. 1 Carborundum Co.) MINK, John D. (G) R. R. 2. Dunkirk. Ind. f Armstrong Cork Co ) MINNICK, L John (R) 306 Boyer Rd., Cheitenham, Pa. (G. A W. H. Corson) MINSHALL, John B. (R) Kaiser Aluminum A Chemical Saics, Inc. 3 Gateway Center. Pittsburgh 22. Pa MINTON, G. Z. (GO Pittsburgh Plate Glass Co. Research Lab.. Creighton. Pa. MISCERAMIC TILE IR. E. Hormberg) Box 1070. Cleveland. Miss. MISSBACH. George E. (M) Morehouse Cowles, Inc. 707 Henrv Gradv Bldg.. Atlanta. Ga. MISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) 38 Angelica St.. St. Louts 7. Mo. MITCHELL, Lane (BFI) School of Ceramic Engineering Georgia Instirute of Technology Atlanta. Ga. MITCHELL. Russell G. (W) R. R. 1. Dutch Ridge Rd. Beaver, pa. (McDanel Ret'raetorv Porcelain Co.) MITOFF. Stephan ?. (B) General Electric Co.. Res. Lab. Metallurgy i Ceramics Dept. Box 1088. Schenectady, N. Y. MITRA. H. K. (I) 12 A Road East Jamshedpur E.Ri. India ITata Iron A Steel Co.. Ltd.) MIXER. William G.. Jr. (W) 315 W. Lima St.. Findlay, Ohio (Radio Corp. of America) MOCHEL. Mrs. Ellen Lunn (G) Coming Glass Works. Coming, N. Y. M* JhWNTY. I,..*; c :i i i: ;i .\ath If i* Kakmr.ti Rd.. L.. Tatansgar. C ( Hindu.*:.-,:: iteel L:d . MOHL. He::nu:h ( \V> Fabrics de Loza "Ln Favorite'* $.A- Tairra Son: JOS. Dcspacho J12 Mexico l. D. F. <>hlha. n'c.v. l-\ isr Miller !*Ii i ri: j j i:t c* i: t Id. B*'.\ !5'*n. >.ili>lnirv. t/ .Mufi:^. i i i: 11 e r t - c,\) }il Eric 5:.. \\'+>>d wile. Ohi'j i Allied Chemical 3c Dve Corp.) MOHR. Wiiiinm C. (MI) ' Shcuatigo China, Inc. Shenangu Reir. Div.. New ,`l- MOHUN. William A. (R) General Abrasive Co., Inc. 2000 College Ave.. Niagara Fails. N. MOL. Evert A. t E) Rea Mngne: Wire Co., Ir.c. E. Pontiac 5c.. Fort Wavne, Iml. MOLLER. J. A ail ?or?grjnds Porseiaensfabrik .Porsgrunn. Xorwav MOXACX. A. J. CO) 2S7 Mort'mer Ave., Rutherford. N. J* (Newark College of Engineering.) MONAGLZ. Wiiliam T. (R> Lloyd Ave.. Stanhope, X. J. (Reaction Motors, Inc.) MONETA. Fausto Via Mambretti 9, Milano, Italy (Ditta Giuseppe Monera) MO.VG. Lewis E. (R) 3506 Loughborough PL Chevy Chase 15, Md. (Mationa! Bureau of Standards) MONINGER. Richard E. fW) Harding Ave.. East Liverpool. Ohin (\VeIl5viIIe China Co.) MONKS. Douglas E. 133 Hillside Terrace. Irvingron. N. J. MONKS. /. K. .3, 4*14 Harborfl Dr. Toledo 1.1. Ohio (Owens-Illinois) MONROE. G. DeVun - XJi 2912 A'diambr.-i Circle Coral Gabies. Fin. i Forri Mornr C>.) MONROE. Limes E.. Jr. M ) 42S4 Doney St.. Odum bus id. Ohi* (Titanium Ailny Mf?. Div. National I.e.vl C> ) MONTAGNO. Antonio M. ' E' <59 Glenmont Ave.. Columbus 14. Oh`n I'lnlArri Engineering Co.) MONTEITH Philip (V (E) 4204 Dolphin Rd.. Louisville 15. K>'- (Chicago Virret>tjs Corp.) MOXTEMAYOR. Ponciano S. (G) A partado Pnral 1051 {ILLER. William A. (R) MOCHEL. John M. (B) Monterrey. X. L.. Mexico Carborundum Co.. Falconer. N. Y, 97 Hillcresr Dr.. Painted Post, N. Y. (Vidriera Monterrey. S. A.) , IILLER. William A. (Coming Glass Works) MONTGOMERY. Earle T. f\VFT) 306 E. Madison St., Gihsonbttrg, Ohio MOCXRIN. Isadore IB) 12 W. Jcrfrev PI., Columbus 14. Ohio ITLLTCAN. Kenneth L. iRl Pennsalt Chemicals Corp. (Consulting Engineer) Aluminum Co. of America Research A Development Div. MONTGOMERY. EMin C. (Cl) 230 Tark Ave.. New York 17, N. Y. Box +388. Chestnut Hill P. O. Libbey-Owens-Ford Glass Co. ilLLIGAN. Chester E. (R) Philadelphia IS. Pa. Jewella Rd.. Shreveport. La. Electro Refractories A Abrasives Cnry MOEBUS, C. R. CM) MONTGOMERY. Thomas B. (G) +814 Loma Vista Ave. United Clay Mines Corp. Pittsburgh Plate Glass Co. Los Angeles, Calif. 101 Oakland St.. Trenton. N. J. 632 Ft. Duoueane Blvd. ILLIGA-V, Lowell H. (B) Norton Company. One New Bond St. Worcester 6, Mass. ILLIKEN, Edward C. (SI) 444 W, North Ave. East Palestine. Ohio (Natco Corp.) MOFFAT. John. Jr. (R) 12255 Miranda St. North Hollywood. Calif. (Gladding, McBean A Co.) MOFFAT. John W.. Jr. (R) Babcock A Wilcox Co. 2730 Koppers Bldg.. Pittsburgh 19. Pa. Pittsburgh 22. Pn. .\rONTGO+NfERY. Wayne C (W) Aluminum Co. of America 1501 Alcoa Bldg.. Pittsburgh 19. Pa. MOODY. H. Leslie (D) Hyaiyn Porcelain, Inc., Bo.t 460 Hickory. N. C. ILLIKEN. Frank H. (S) Bowerston Shale Co.. Bowerston. Ohio ILLIKEN. William M. Cleveland Museum of Art 11150 East Btvd.. Cleveland <">. Ohio ILLIKEN. William U. (SJ1 Box 23. Bowerston, Ohio (lT. S. Army) MOFFETT. Robert A. <RI) North American Refractories Co. 1012 National City E. 6tb Bldg. Cleveland 14. Ohio MOFFITT. Roy B. 206 Chamberlain St.. Raleigh. .V. C. MOGEY. Leona (G) Raytheon Manufacturing Co. 55 Chapel St.. Newton. Mass. >(OODY, Willis E. fBI) School of Ceramic Engineering Georgia Institute of Technology Atlanta, Ga. MOONEY. Edward L. (W) Genera/ Laboratory Assoc., Inc. Norwich, N. Y. MOORE, Carleton B. 391 S. Wilson Ave., Pasadena, Calif. n.. :?S. Xo. 10 (19/57) Roster 77 MOOSE. Charles H i E i P. R. Mallory 4 Co. 3029 E. Washington St. Indianapolis 6. Ind. MOORE. Dwight C. iErl) Mineral Products Division National Bureau of Standards Washington 2a. D. C. MOORE. K. Dept, of Glass Technology University of Sheffield Elmneia, 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. III. (Case Mfg. Corp.) MOORE. Matthew S. Pre-Fob. 241, Cletr.son College Clemson, S. C. MOORE 4 MUNGER (Murray Rushmore. Jr.) 33 Rector St. New York 5. N. Y. MOORE. Richard S. (RD Harbison-Walker Refractories Co. 1800 Farmers Bank 31dg. Pittsburgh 22. Pa. MOORE. Robert E. 812 Orchard St.. Rolia. Mo. MOORE. Robert F. (R) 3345 Forbes St.. Pittsburgh 13. Pa. (Jones 4 Laughlin Steel Co.) MOORE. Robert G. 3ox 3794. Georgia Tech. 5ra. Atlanta. Ga. MORAN, J. J. (G) Landis Ave. 4 Spring Rd. Vineland, N. J. (Kimble Glass Co.) MORELL. N. L. (R) ,313 Union Bank Bldg., Bethlehem, Pa. (N. L. More:I Co.) MORENA. Alfred (WI) 6 Colby Ct.. Ne-.v Haven. Conn. (Electro-Ceramics. Inc.) MORESCO. Albert J. 336 Travis --6. Pittsburgh .In. Pa. MORGAN. John C.. Jr. IG) Lihbey-O'vens-Ford Glass Co. 17)1 E. 3roadav. Toledo a, Ohio MORGAN. John M. (W) 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. fWI) Pass 4 Seymour, Inc.. Syracuse, N. Y. MORGAN. Stuart F. (WI) Harbor Rd.. Mattapoisett Neck Mattapoisett, Mass. (J. I. Paulding, Inc.) MORGAN. Willard L. (G) 1203 Moundview Ave.. Newark. Ohio . (Owens-Coming Fiberglas Corp.) MORGAN. W. R. (GFI) Sterling Grinding Wheel Co. Box 801, Tiffin, Ohio MORK. Gordon E. R. R.. McCallsburg, Iowa MORNIN. Bob L. (WI) 3885 Pierce. Wheatridge, Colo. (Coots Porcelain Co.) MORREN. Georges 42 Bd Guillaume Van Haelen Forest, Brussels, Belgium (Diamant Boart) MORRIS, Ernest D. 15 Irby Rd., Heswall, Cheshire, England (Morgan Refractories Ltd.) Vol. 3fi. No. 10 (1957) MORRIS. Frank i\V, 356 Grec:ip`ir.t Ave. Brooklyn 32, N. Y. t Leviton Mtg. Co . lr.c.i MORRIS. George J iRj American Steel 4 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. Norwoik, Calif. (Durochrome Decaicotr.ania Co., Ir.c.) 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) 584 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. (WF) Smooth-Cn Mfg. Co. 572 Communipaw Ave. Jersey City 4, N. J. MORTON POTTERY CO. (H. W. Rapp, Jr.), 315 W. Jefferson St. Morton, III. MORTON. William A. (G) 46 Standish Blvd.. Mt. Lebanon Pittsburgh 23. Pa. (Loitus Engineering Corp.) MOSAIC TILE CO. (G. F. McConnell). Zanesville, Ohio MOSER. Berthold B. Industria Ceramics. Ltda. Apartaco A.ereo 4829, Bogota. Colombia MOSER. John 3. 806 Seward St.. Apt. II Evanston. III. MOSER. John L. (SI) 1210 Aeon Dr.. Dayton 9, Ohio (W. H. Kiefaber Co.) MOSS. LeRoy L. (El) 3553 Ingleside Rd. Shaker Heights 22. Ohio (Ferro Corp.) M073CH. 7. R. (G) Foster-Forbes Gloss 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 Harriett Dr. San Antonio 12, Texas (A. K. Moulton Associates) MOUNT CLEMENS POTTERY CO. (Charles E. Doll) Mount Clemens. Mich. MOURAUD. Paul H. (W) 14 Ingleside Rd. Upper Montclair. N. J(Technical Ceramics 4 Lava Corp.) MOWREY, Fred W. (GI) 108 Rodgers Dr.. New Kensington, Pa. (American Window Gloss Co.) MOYER. Henry F. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio MUAN, Amulf (B) Pennsylvania State University 23 Mineral Sciences Bldg. University Park, Pa. MUCCIGROSSO. Angelo 4206 Consaul Rd., Schenectady. N. Y. MUELLER, Edward E. (BI) School of Mineral Engineering University of Washington Seattle 5, Wash. MUELLER. Fefd A. (R) 1360 Rudd. Car.or. City, t-oio. ''Freeman Fire 3 rick Co.) MUELLER, lames 1. '.3 71) Ceramic Engineering Division University of Washington Seattle 5. W'ash. MUELLER. Jcnr. P. i.Mi Mountain View Rd.. Trer.ton 5. N. (Mueller Machine Co.) MULL, Lee R. (G) Owens-Cornir.g Fiberglas Corp. Barrington, N. J. ML'LLAN, 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 ?or:el!an-Mar.ufa!<tur 3erlir. Hartmannstrasse 1-3 (13a) Sclb/Obcrfr. U. S. Zor.e, Gerrr.ar.v MULLER. Max (RI) Basic, Inc., 845 Hanr.a Bldg. Cleveland IS. Ohio MULLER. Robert Emaiilerie de St. Maurice 29, Rue du Val d'Osne St. Maurice (Seine), France MULLIGAN, Edwin F. (E) Jones Metal Products Co. West Laiavette. Ohio MULLITE WORKS. REFR. DIV. H. K. PORTER CO., INC. (Edward L. Bohn) 10 Canal St.. Shelton. Conn. MULROY. James ?. (El) 965 Lafayette Ave.. Buffalo 9, N. Y. (Boys Vocational High School) MULRYAN. Henry (W) Sierra Talc 4 Cay Co. Box 290. South Pasadena. Calif. MULTER. Robert K. (W) Architectural Tiling Co. Cass 4 Jackson Sts.. Keyport. N. J. MULVANE. O. E. (E) 4133 N. 21st St., Milwaukee 9, Wise. (A. O. Smith Corp.) MUNDY. O. S. (WI) 425 Park Ave., Wheaton. 111. (Western Electric Co.) MURDOCH. K. A. Davev 4 Moore Ltd.. Lockfieid Ave. Brimsdown. Enfield Middlesex. Engianri MURCATROYD. John B. Rock-ware Glass. Ltd.. Rockware .Ave. Greenford. Middlesex. England MURPHY, Edward J. (W) Charles B. Chrystal Co.. Inc. 55 Park PL. New York 7. N. Y. MURPHY, Horry T. (R) Gimax Fire Brick Co.. Gimax. Pa. MURPHY. Leone P. 1005 S. Lincoln Ave.. Urbana, III. 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 4 Research Corp. 405 Montgomery St. San Francisco 4. Calif. MURRAY. Haydn H. (B) Georgia Kaolin Co. 433 N. Broad St.. Elizabeth 3, N. J. MURRAY, John F. (B) 413 Ottawa St.. Forest Heights, Washington 21, D. C. (Naval Research Laboratory) Roster 79 MURRAV. Louis J. Vaal ('arteries, Ltd.. Box -19 Meverten. Transvaal. South Africa MURRAY. Maurice A. (WI) Redding place, Towaco, N. J. f B. C. Cor? ) MURRAY, Maurice J. (B) Universal Oil Products Co. jO Algonquin Rd., Des Plaines. 111. MURRAY. Robert S. (G) 3. F. Draxenteid & Co.. Inc. Washington. Pa. MURRAY. Thomas F. 2U3 Ravenel Rd., Clemson. >. C MUSS ELM AN. H. G. (G) 1413 Old Frederick Rd. Baltimore 39, Md. (Carr-Lowrey Glass Co.) MUTTITT, F. C. (R) Algoma Steel Corp. Sauit Ste. Marie. One.. Canada MYCALEX CORP. OF AMERICA (Richard A. Humphrey) Box 311. Clifton. N'. J. MYERS. C. H. <R) Utah Fire Qay Co. 3ox 127. Salt Lake City. Utah MYERS. Charles V. fW) Eljer Co.. Three Gateway Com it Pittsburgh 22, Pa. MYERS. Thomas J. (G) 1224 20th Ave.. Altoona. I'a. (Svivania Electric Prontici.*. lm*.i MYERS. Wilbur C. (B) National Cash Register Co. 1401 E. El Segunrio 3ivd. Hawthorne, Calif. MYERSON. Martin (W) Myersoo Tooth Corp. 90 Hamilton St.. Cambridge. Mas*. MYERSON. Richard L. (W) Myersnn Tooth Corp. ) Hamilton 5t.. Cambridge. Mass MYCDAL. Rol: L. (W) 1460 Painter Circle. Apt. J St. Laurent. Que.. Canada i l*:lkington*s Tiies (Canada) Ltd.) MYIXT. Maung S. Xyaikmaraw, AmherM District Burma .IYINT. Simon M. K. fS) University o: Pennsylvania 3-00 Spruce St.. Philadelphia 4, Pv N CADT.ES. Marinn R. (340$ Quart* St.. Los Alamos. \\ M. (Los Alamos Scientific lath.) CAGAN. Harold R. (WJI) 32 Garemont Ave.. Santa Clara. Calif. (Lockheed Aircraft Corp.) CAKAMURA. H. Henry (R) Armour Research Foundation of Illinois Institute of Technology 3427 S. Federal St.. Chicago 16. 111. .'AKAMURA. Yoshikazu Shokn Glass Co.. Ltd.. 1330. Yamaraki Kamakura City Kanagawa Pref.. Japan lAXCE. Taylor E. (W) Gen. Del.. Wallburg. N. C. (Western Electric Co.) lAPIER. John B. (S) 1120 Bass Rd., Macon. Ga. (Cherokee Brick & Tile Co.) fAPOLITANO. Albert (G) National Bureau of Standards Dept, of Commerce Conn. Ave. St Van Xess St. Washington 25, D. C. ARASIMHAN. Malur D. Rm. 4.051, Ceramics Div. . Massachusetts Institute of Tech. Cambridge 39. Mass. ASH. Harold S. (DF) University of Cincinnati Ceramics Dept.. Cincinnati 21. Ohio OL. nr>. No.- io (10.17) NASH. Herbert l\V) Southern California Gas Co. Box 3249. Terminal Annex Los Angeles 54. Calif. NATCO CORP. (R. A. Shipley. 327 Filth Ave.. Pittsburgh 22. Pa NATIONAL ENGINEERING CO. SIMPSON MIX-MULLER DIV. James >:ev. ar:) 54U W. Washing;.n Blvd. Chicago v ill. NATIONAL INDUSTRIAL SAND ASSN. (V. P. Ahearn: Munsey Bldg.. Washington 4, D. C. NATIONAL LEAD CO. (Roy Dahlstrom) 111 Broadway. New York 6. N. Y. NATIONAL LIME AND STONE CO. (L. G. Love) First National Bldg. Findlay. Ohio NATIONAL REFRACTORIES DIV. MEXICO REFRACTORIES CO. (R. A. Hirchins). 326 S. 16:h St. Philadelphia 2. Pa. NATIONAL RESEARCH CORP. (Philip J. Cough) 70 Memorial Dr. Cambridge 42, Mass. XAUDOT, Jacques Cerabati, 10 Rue Pasteur Pont Sainte Maxence (Oise). France X AVIAS. Louis (BFI) General Electric Co.. Research Lab. Box 1088. Schenectady. X. Y. XAVRATIEL. Hans Rosenstrasse 9. Lnuf/Pegnirz Bavaria. Germany (Sembach 2c Co.) NEAL, James E. (R) 164 Sandford Ave. North Plainfield, N. J. (Johns-Manville, Inc.) XEALON, Terence P. Edward Curran Engineering. Ltd. CarnirT. Wales XF.DRE3ERG. Roy F.. G. (WI) 215 Searle 5t.. Zanrsviile. Ohio < Mosaic Tile Co.) NEEL. Lee. Ill Box 2546. Georgia Tech., Atlanta. Ga. NEELY, Homer E.. Jr. (G) 404 E. llth Ave.. Tarenrum. Pa. (Pittsburgh Plate Glass Co.) NEFF. Edward D. (R) Eox 203, Ternoleion. ?a. (Karhison-Walker Refractories Co.) NEFF, John M. (S) Armour Research Foundation 10 W. 35th St., Chicago 15. III. NEFF. Russell C. (R) Olive Hill. Kv. (General Refractories Co.) NEIMAN, Robert (R) Whip-Mix Corp.. Inc. 411 W. Avery Ave.. Louisville 3. Xy. XELLEY. John W. i G) 206 Theadore Rd.. Nashville. Tenn. 1 Ford Motor Co.) NELSON. Forrest W (ED A. O. Smith Com.. 3533 N. 27th Sr. Milwaukee 1. Wise. NEF.SOX. James A. (S) University of Illinois 204 Ceramics Bldg.. Urhaita. III. NELSON. James W. (XJ) 3534 5. Third E. Sait Lake City. Utah NELSON. Karl . 03 E. Michigan Ave., Urhaua. PL NELSON, Richard P. 8520--32nd Ave.. N\ W. Seattle 7, Wash. NELSON. Robert E. (G) 20 Spring Sf.. Seneca Falls. N. Y. (SyIvania Electric Products. Inc.) NELSON. Robert T. (R) Columhia-Geneva Steel Co. Box 510. Provo. LTtah NELSON. Willixi:: I. iG) IIS Mary St.. 3inghamton. N. Y. (Solvay Process Div., Allied Cherv.cai Dve Carp.) \ E R EX ST; ) N M-irc i'W) 3b`9 PriiuTtitit l.'r . Pittsburgh . 5. Pa I 'A'cNtiturhu^c Electric Corn' NE7TER. William. S. (G* Keystone Abrasive Wheel Co. Gregg i Hauiniund Aves.. Carnegie. Pa. XETZSCK. Erich Maschinenrabrik Cebrueder NctzK'h Werkstrasse 19 Seib (Bayern), Germany NEW. Ryland 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 2t Fraley Sts. Philadelphia 37. Pa. NEWBOLD GENERAL REFRACTORIES. LTD.. Cavey St Mayfield, X. S. W.. Australia NEWBOLD. R<maui B. 577 E. 5400 S.. Murray, Utah NEW CASTLE REFRACTORIES CO. (R. W. Rowland) New Castle, ?a. NEWCOMB. Rexford. Jr. (RI) 915 Dodge. Lake Geneva, Wise. (RX Chemical Co.) NEW JERSEY PORCELAIN CO. (J. M. Gilnllan) Box 903 Trenton 5. N. J. NEWKIRK. Terry F. (B) General Electric Co. Power Tube Dept. Schenectady. N. Y. NEWTON. Avery C. fR) 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 1001. Shreveport. La. NIELSEN. H. Bach (M) Nichols Engineering 4 Research Corp. 70 Pine St.. New York 5. N. Y. NIELSEN. Thomas H. 406 W. Oregon. Urbana. 111. NIEMAN. A. H. <G) Ohio Lime Crv. Woodviile. Ohio NIKLEWSKT. B. K. Main Enamei Mfg. Co.. Ltd. Gothic Works. Angel Rd. Edmonton. London. N. 13. England NILES FIRE BRICK DIV. MEXICO REFRACTORIES CO. (Carey E. Lindsay) 165 E. Park Ave.. Niles. Ohio NIPPON TOKI KAISHA. LTD. (Tun Tsagawa) -1. Nnrirakeshinmachi. Nishiku. Nagoya. Japan NISULA. Chester A. (R) 716 Main St., Riverton. N. J. (Simonds Abrasive Co.) XIXEN. David (G) CBS-Hytron. Kent 4 Warren Sts. Newburvporr. Mass. XIYOOI. D. P. c/o Mr. S. P. Xiyngi. 4 Alinore Rd. Calcutta 27. West Bengal. India (M/S Bengal Enamel Works, Ltd.) XOBF.S. Frederick L. Carborundum Co.. Ltd.. Trafford Park Manchester 17. England Roster SI N03LE5. Eugene L. iEI> 3714 Torrir.gion Ave., Cleveland 34, Ohio (Ferro Corp.i NG3LES. Mrivm A. iRl Louisiana Pulytechnic Institute Dept. Petroleum En?r., Boston, La. NOCK. Charles J. iRl Nocic 4 Son Co.. 916 Engineers 3!dg. Clevcia.nil 14, Ohio NO DA, Tokiti Dept, ot" Applied Chemistry' Facility ot Engineering Nagoya University Chikusa-ku, Nagoya, Japan NOE. James T. (S) 411 Madison Ave., Brookvillc, Pa. (Hanley Co.) NOHLE, Richard C. (SI) Claycraf: Co. Box 366. Columbus 16, Ohio NOLAN, William F. 9 Somerset Lane, Holden. Mass. N0RAN7E. Nicholas J. (W) Box 30. Star Route. Latrobe, pa. (Stupakotf Div.. Carborundum Co.) NORDBERG. Martin E. (GF) 134 E. Fourth St., Corning, N. Y. (Corning Glass Works) NORDGREN, Harry Aktiebolaget Gustavsbergs rabriker Gustavsberg, Stockholm. Sweden NORDMEYER. Rudy L. (S) Valley 3rick 4 Tile Co.. Box 333 Mission, Texas XORDOL'IST, Clarence E. (I) Two E. Dayton Dr.. Fairborn. Ohio NORDQUIST. Lawrence E. (B) Corneil-Dubilier Electric Corp. 1605 Rodney French 3!vd. New Bedford. Mass. NORDYKE. J. S. (MF' Hammond Lead Products. Inc. 40 E. Main St.. Carnegie. Pa. NORMAN. Tom C. (W) j Atn-Tex Ceramics. Inc. ; Box 192. Athens. Texas NORMANDEAU. Pierre (D1 | 3660 Hutchison St. j Montreal IS. Que.. Canada I NORRIS. Alan W. | 167 Station Rd., Wylde Green | Sutton Coldfield. Warwick, England i (Douiton Research Ltd.) NORRIS. Charles R. (W) 4024 Diehl .'.ve.. Cincinnati 16, Ohio (Charbeaux Potterv) NORRIS-THERMADOR CORP. (Edgar H. Freeman), 20113 E. Valley Walnut. Calif. NORTH AMERICAN REFRACTORIES CO. (Robert A. Mottett) 1012 National City E. Sixth Bldg. Cleveland 14. Ohio NORTHWESTERN GLASS CO. (Edward S. Campbell) 5801 E. Marginal Way, Seattle 4, Wash. NORTON. 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. NORTON, Frederick H. (BFI) Dept, of Metallurgy Div. of Ceramics Mass. Institute of Technology Cambridge 39, Mass. NORTON. George R. (EJ) Pfaudler Co.. Res. Lab. 1000 West Ave.. Rochester, N. Y. NORWALK. Marshall H. (GJ) 76 Catlin Dr., R. R. 2 Beaver Dams, N. Y. (Corning Glass Works) NORWOOD. J. Nelson (Life, X) Alfred University. Alfred, N. Y. NOVY. Anton R. (B) 8140 Merrill Ave., Niles 31. III. (Great Lakes Carbon Corp.) Vol. 36, No. 10 (1957) NOWAK. John M. (3) Bell Aircraft Corp., Box 1 Burfaio i, N. Y. NOWELL. Dorroh L.. Jr. (S) 202 Broad St.. Augusta, Ga. (Merrv Bros. 3rick & Tile Co.) NCSSBACM, Thrcdore 170 Ellis Ave., Irvington, N. J. NYQLTS7. Roy A. (G) 3650 Beechway Blvd.. Toledo 14, Ohio (Libtey-Ower.s-rord Class Co.) O OAKEY. Paul D,, Jr. 705 N. Main St., Blacksburg, Va. OAKLEY, Harry D. 217 Robinson North Tonawanda. N. Y. OAKLEY, W. W. (GF) Box 33, Corning, N. Y. (Coming Glass Works) OARE. Henry A. (W) 2655 Sharondaie Dr.. N. E. Atlanta. Ga. (Georgia Sanitarv Pottery, Inc.) OBANNON, L. S. (E) 2239 Farleigb Rd- Columbus 21, Ohio (Battelle Memorial Institute) OBERSCHMIDT. Leo E.. Jr. (I) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh, Pa. OBERST, Clair R. (MF) Industrial Ceramic Products. Inc. 965 W. Fifth Ave.. Columbus 8, Ohio OBERST. Robert B. (WJI) 323 Weymouth Lane Columbus 4. Ohio (Industrial Ceramic Products, O'BRIEN. Neil H. (SI B. F. Drakenfeld 4 Co. Box 519, Washington. Pa. Inc.) O'BRIEN. William ?. (E) Hope Rd.. Shrewsbury. N. J. (American Potash 4 Chemical Co.) O'CONNELL, Thomas B. (G) Lihbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Onio O'CONNOR. Frank 25 Boulder Lane. Levittown. Pa. O'CONNOR. Jerry 3. (Ml 1205 Edgewood Ave- Apt. 3-3 Trenton 8, N. J. (O. Hommel Co.) O'DELL. Ha.-ald L. I'.V) Hamilton Porcelains Ltd. 33 Elgin St- Brantford. Ont- Canada ODOM. Paul R. (M) 2566 Nancelon Circle. Macon. Ga. (J. M. Huber Corp.) OESCH. Robert B. (S) 202 Baker St. Box 846, Henderson, Texas (Henderson Clay Products) OESTERLE. Henry (E) Roesch Enamel 4 Mfg. Co. W. Main 4 N. 24th Sts. Belleville, 111. OESTERLE. Robert A. (E) 11 Glen Grove. Belleville. Ill (Roesch Enamel 4 Mfg. Co.) OGDEN. D. P. (S) Ogden Engineering Co. Box 218, Ottawa. 111. OGDEN. Ellsworth P. (RF) Box 348. Granby, Colo. (Harrop Ceramic Service Co.) OGDEN. William D- Jr. (RI) Mackeyville, Pa. (North American Refractories Co.) O'HAGAN, Hugh F. (M) 214 Eagle Point Blvd- Erie. Pa. (Minneapolis-Honeywell Regulator Co.) OHIO BRASS CO. (J. J. Taylor) Barberton, Ohio OHIO CLAY CO. (Norman E. Denison) Box 1776, Cleveland 5, Ohio OHIO LIME CO. (A. H. Nictr.an) Woouviile, Ohio OHLIGER, Lewis ?. (G) 299 Ridgeview Dr. East Rochester. N. Y. (Bausch 4 Loir.b Opt ical Co.) OHNSORG. Reger W. Box 1049, Alfred. N. Y. OIINYSTY. Basil . R.I., G'JI Cherokee R.'l . N. E. Albuquerque. N. M. t Sandia Carp. I OLCOTT. Joseph a. (O) Curning Class Works. Corning. N. Y. OLD HICKORY CLAY CO. (Lee F. Powell) Box 271, Paducah, Ky. O'LEARY. W. J. (R) 24 Seminole Ave- Claymont, Dei. (E. I. du Por.t de Nemours 4 Co.) OLENCHUK. Daniel L. (R) 1300 Laird Ave- Aliquippa. Pa. (Jones 4 Laughiin Steei Corp.) OLIVER, D. A. 3. 5. A. Group Research Centre Mackadown Lane. Kitts Green Birmingham 33. England OLIVER. John C. (E) Porcelain Er.amel Institute 1145 19th St.. N. W. Washington 6. D. C. OLIVER. John H. (G) Westinghouse Electric Corp. Electronic Tube Div. Horseheads. N. Y. OLIVERIO, William (G) Roiland Glass Co- Box 232 Clarksburg. W. Va. OLSEN. Eric ! Di R. R. 63. Dundee. III. (Haeger Potteries. Inc.) OLSEN. John M. (G) E. I. du Pont de Nemours 4 Co.. Ir.c. Electrochemicals Dept. Wiimington 93. Dei. OLSEN. Rangwald S. (El) 1137 Grant St- Evanston. III. (Armour Research Foundation) OLSON, Hjaimar Aktiebolaget Gustavsbergs Faoriker Gustavsberg. Sweden OLSON. Ole A. i R) 5 Wrenwood Ct. Webster Groves 19. Mo. (Laclede-Ckri'ty Works. Rerr. Div. H. K. Porter Co.. Inc.) O'NEILL. John K. WJ) 146 Lenox Rd- Brooklyn. N. \. (Sperry Gyroscope Co.) ONODAGA POTTERY CO. (R. H. Pass) 1853 W. Fayette St.. Syracuse I. N. Y. ORAVEC. Joseph A. (S) 3731 N. Newlar.d Ave.. Chicago 34, III. ORBACH. Harry K. (B) Fluor Corp. Ltd. 12000 E. Washington Blvd. Whittier. Calif. ORDWAY, Fred (B) Portland Cement A.ssoctatton reilowship National Bureau of Standards Washington 25. D. C. OREFRACTION. INC. (Albert L. Kreuer) 7425 Thomas St. Pittsburgh 8. Pa. ORMSBY, Walter C. (W) National Bureau of Standards Washington 25. D. C. ORR. David B. (EJ) R.R. 2, Oneonta. N. Y. ORTEPIO, Salvatore (W) General Ceramics Corp- Crows Mill Rd. Keasbey, N. J. ORTH. Howard S. (W) Industrial Ceramic products, Inc, 955 W. Fifth Ave- Columbus 8, Ohio ORTH. Howard S- Jr. (W) 236 Fairway Dr., Columbus, Ohio (Industrial Ceramic Products, Inc.) Roster S3 ORTMAX. Cur:;* D. i'.V) A C Sparse Plug Div. General Motors Corp. IJ00 X. Dor: Hwy . Flint J, Mich. URTMAX. rred B. t RFIj 15o0 Stone Canyon Rd. Los Armeies 2*. Cali:. iCJaddir.g. Mc3ean & Co.) ORTON. EDWARD. JR., CERAMIC FOUNDATION (J. L. Carruthers) 1445 Summit St. Box No. Sta. A, Columbus I, Ohio ORTON. Mrs. Edward. Jr. 39 \V. Torrence Rd., Columbus. Ohio ORTON. Harold S. (G) West Penn Power Co. Cabin Hill. Greensburg, Pa. ORZANO. Michael J. (SI) Claycraft Co. Box 366, Columbus 16, Obio OSBORN. Elburt F. (B) College of Mineral Industries Pennsylvania State University University Park, Pa. OSBORN. Walton O. (R) North American Refractories Co. Water St., Lock Haven, Pa. OSBORNE. David G. Leaington Glass Works Ltd. Leraington Neweastle-on-Tjme 5. England OSTRANDER* Eugene C. (G) Kopp Glass. Ir.e. Box 8253. Swissvale. Pittsburgh 18, Pa. OSTRANDER. Van R. (B) Endevco Corp. 27 E. California St., Pasadena, Calif. OTLEY* J. D. (S) John B. Kelly Inc. of Penn. 1720 Cherry St.. Philadelphia 3, Pa. OTRHALEK. Joseph V'. (B) Wyandotte Chemicals Corp. Wvandotte. Mich. OTTAWA SILICA CO. (Georg? A. Thornton) Box -*37 Ottawa. III. OTTO. George H. (S) 53 W. Jackson BWd.. Chicago 4, III. i' Consultant> OTTO, William H. (G) Owens-Coming Fiberglas Carp. Newark, Ohio CT70S0N. Axe: (GI) *300 Highland Ave.. Shacystde, Ohio 'Imoeria! Glass Corp.) OWEN, Frederick E. (R) Electrical Refractories Co. East Palestine, Obio OWEN. J. D. R. Fowler. Ltd., ritzroy St. Marrickville. Sydner. N.S.W., Australia OWENS-CORNING FIBERGLAS CORP. (A. C. Siefert) Newark. Ohio OWENS-ILLINOIS (W. D. Miller) Box 1019. Oakland 4, Calif. OWENS-ILLINOIS (E. W. Summers) Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio OWENS, James S. (W) Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave.. Detroit II, Mich. OXLEY. Charles A. (W) 1508 Park St.. Robinson. 111. (Case Mfg. Corp.) P ?ACHL, Margaret (D) University of North Dakota Ceramics Dept., Grand Forks. N. D PACIFIC CLAY PRODUCTS (John D. Fredericks) Box 2178, Terminal Annex Los Angeles 54, Calif. 'ACKMAN. Willard D. (WT) Edwin M. Knowles China Co. Newell. W. Va. UADFIELD. Ralph C. (R) 2990 Avon Rd.. Bethlehem. Pa. (Bethlehem Steel Co.) IQL. 36, NO. 10 (1057) 1W i; K. Juhn A. lj) \\ il!si/n :*r.wluct> Div. Kay-O-Vac C<>.. Reading, l'a. PAFFORD. Ray W. (Sri) Acme Brick Co. 3ox -40i. For: Worth I. Texas IWLADINO, Albert E.. Jr. tBJ.i Raytheon Mfg. Co.. Res. Div Waltharr. 54, Mass. PALMER. Deios M. \C) 4401 Jackman Ru., Toledo 12. Ohio (Delos M. Palmer 3t Associates) PALMER. Rufus N. (M) 476 Broadmoor Ave., Pittsburgh 34, pa (Consultant) PALMER. Willard E. (SI) 763 N. Cross St. Newcoinerstown. Ohio (Clay City Pipe Co.) PALMERI. Victor R. ( E) Box 33. Kenmore Sta. Boston 15. Mass. ( Fenwal. Inc.) PALMOUR. Hayne. Ill ( B1 3046 Lewis Farm Rd.. Raleigh. N. C. (American Lava Corp.) PANGELS. Alfred A. Villeroy & 3och G.m.b.H. Keramische Werke Luebeck-Daenischburg, Gerntanv PANGELS. Heinz J. (W) Mosaic Tile Co. Pershing Rd.. Zanesville, Ohio PAPER MAKERS IMPORTING CO., INC. (Charles Brian) 44 S. Second St., Easton, Pa. PAPIER. Harry (S) Xatco Corp., Box 267, Cordova, Ala. PAPPIS. James 433 Brookline Ave., Boston 15. Mas. PAQUIN, Pol Societe Francaise de Ceramique Service tie Documentation 23. rue de Cronstadt. Paris XV. France PARCEL, Martin W. (W) Robertson Mfg. Co. Box 348. Trenton 5. N. J. PARIKH. Niranjan M. c/o Mr. M. G. Parikh "Palmera"--3A Altamount Rd. Bombav 26. India PARKER. Glidden M.. Jr. (O) Glidden Potter*. Inc.. Alfred. N. v PARKER. Harm* (Bn 308 Marvin Rd.. Silver Sprine. Md. (National 3ureau of Standards j PARKER. Henm* F. (G) Pittsburgh Plate Glass Co. Creighton. Pa. PARKER. James W.. Jr. (SI 7217 Shakespeare Rd.. Columbia. 5. C. (Guignard Brick Works) PARKER. Leon (G) H. I. Thompson Fiber Glass Co 1733 Cordova St.. Los Angeles 7. Calif. PARKER. Raymond W. (S) Alliance Clay Product Co. Box 746. Alliance. Ohio PARKINSON. Robert E. <'E> Kawneer Co. 1105 N. Front Sr.. Niles. Mich. PARKISON. Robert G. 1613 12th St.. Charleston. 111. PARMAN. Donald W. 1419 "HM St., Renton. Wash. PARMER. Jess H.. Jr. (GI Owens-Illinois. Technical Center 1700 N. Westwood Ave. Toledo 7. Ohio PARXHAM. H. General Refractories Ltd. Central Research Labs. Sandy Lane Worksop. Notts. England PARRY. William D. (D) Philadelphia Museum School of Art Broad & Pine Sts.. Philadelphia. Pa. PARSON. James A. i',V[) 6217 Broadway, Indianapolis 20. Ind. ( Vitroscal Corp.) parsons, Douglas e. i s> Building Technology Division National Bureau of Standards Washington 25. D. C PARSONS, j. R. (R) Chicago Fire Brick Co 7531 S. Ashland Ave.. Chicago 20. ill PASCHAL. Forrest A. '.S.i Box 2S'.J, Siier City. N. C. t Manufacturers' Agent i PASK. Joseph A. tXFI) Division of Mineral Technology University or* California Berkeley 4, Calif. PASS. J- S. (W) Pass & Seymour. Inc., Soivay Sta. 50 Bovd Ave.. Svracuse 9 N Y PASS. R. H. (W) Onondaga Pottery Co. 1853 W. Fayette St.. Svracuse 1. N. Y. PASS & SEYMOUR. INC. < J. S. Pass) Soivay Station. 50 Boyd Ave. Syracuse 9, N. Y. PATEK. Sherwood E. (S) Midland Brick 5: Tile Co. Chiilicothe. Mo. PATEL, Chandrakant t. Box 236. Alfred, X* Y. PATERSON. G. W. (R) Refractories Engr. & Supplies, Ltd. 99 Clinton St.. Hamilton, Ont., Canada PATRICK. Lt.jg. Howard W. (XJ) VF-Ill, FPO. San Franci-co. Calif. PATRICK. Joseph H. (S) 507 E. Creswell. ilreenw.ii.il. S. C. Southern Brick Co.) PATRICK, Robert F. (El) Pemco Corp. 2554 Greenmount A\e. Baltimore 13. Md. PAULSON. Fred H. iR) 23 Greencalc Ave . \Y.f. .`-tv: (Norton Co.) PAVL1CA. Stanley R. Ma>> Box 746, Alfred. N. Y. PAVLISH. Arnold E. (GF> 2904 Clarkson Rd. Ceveiand Heights 13. Ohio (Cleveland Stiooly Co.) PA.WLOWSKI. Eduard J. (R) 11 Morris St.. Amsterdam, N. Y. (Mica Insulator Co.) PEARCE. Charles S. (F) American Ceramic Society 4C55 N. High S:.. Columbus *.4, Ohio PEARCH. Howard C. (WI) 627 Elson St.. East Liverpool. Ohio < Louthan Manufacturing Co.) PEARCH. William M. (WI) Akron Porcelain Co.. Akron 14. Ohio PEARSON. Edward P. (X) Basic. Inc., 345 Hanna Bldg. Cleveland 15. Ohio PEARSON, E J. & J, LTD. (Charles A. G. Thomas) Firebrick Works Stourbridge. Worcs. England PEASE. Philip J. (G) 1405 Washington Ave. Parkersburg, W. Va. (Demuth Glass Works. Inc.) PECHMAN, Alexander (WI) 1157 E. Pasadena. Pomona, Calif. (Pomona Tile Mfg. Co.) PECK, J. Clair (SI) 2433 Brookside Ln.. York. Pa. (Glen-Gery Shale Brick Corp.) PECKHAM. George W. (G) Chattanooga Glass Co. Corsicana. Texas PECKHAM. Robert H. (G) 4301 Sixth Ave.. S., Seattle 8, Wash. (Penherthy Electromelt Co.) PEDERSEN. John R. tGJ) 1302 Parkside Bird.. Toledo. Ohio t Owens-Illinois) Roster So PEDRICK. W. W. (Gj Armstrong Cork Co.. Miilville, N. J. PEDU. Richard K. !Rt> 2200 Prr.-pect Ave. Cleveland 15. Ohio (Basic. Ire.i PEEL. G. N. Associated Lead Crescent House Manufacturers Ltd. Newcastle-i>n-Tvne I. England PEER. Sidney A. (W) Crane-Paciric Co. 530 W. Citrus St.. Colton. Calif. PE1LER. Kari E. ..GF) Box 22 S. Mystic. Conn. I Em hart Mfg. Co.) PELL. Roberr E. 909\V. Nevada St.. Urbana, III. PELLEGRINI. Edmund T. iG) Kopp Glass. Inc.. Palmer Sr. Suissvale. Pittsburgh Id. Pa. PELZ. Robert W. :EI) 2706 Grovewood, Parma 9, Ohio (Ferro Corp.) PEMCO CORP. (Richard H. Turk) 5601 Eastern Ave.. Baltimore 24, Md. PENBERTKY. Larry (G) Penberthy Electromelt Co. 2517 47th S. V/.. Seattle 16, Wash. PENNSYLVANIA PULVERIZING (William J. Woods. Jr.) Two Gateway Center Pittsburgh 22, Pa. CO. PENTECOST, Joseph L. (W) 506 Woodland Dr., Fairfax. Va. (Meipar. Inc.) PERENY, Andrew (MF) Pereny Equipment Co. S93 Chambers Rd. Box 153. Station A, Columbus, Ohio PERKINS. Harrell L. (M) Central o( Georgia Railway Co. 1212 Rhoaes-Haverty Bldg. Atlanta 3. Ga. PERKINS. Walter W. (WI) 871 Jacoby Rd.. Copley. Ohio (United States Stoneware Co.) PERRY. Commodore A. (3) 130 Weils Ave., Greenwood, S. C. (Southern 3rick Co. I PERRY. Paul E. . B) Ailegner.y Ludlum Steel Corp. Brackenridge. Pa. PERRY. Robert 7. AVI, 3ox 293. Victor. N. Y. (Victor; Insulators Div., I-T-E Circuit Breaker Co.) PERRY. 2/ Lt. Robert W. fGJ) 14th U. S. ASA rid. Sta. APO 929. San Francisco. Calif. PERRY. T. Ray fW) 10629 Ambursen St. Houston 17. Texas (General Electric Co.) PERSICO. John V. 3400 Cashmere n., Seattle 5. Wa>h. 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. (EFI) Hunter-Thomas Associates 2130 Keith Bldg.. Cleveland 15. Ohio PETERSON. Albert F. Rutgers. The State University School of Ceramics New Brunswick. N. J. PETERSON. Donald H. (R) 3029 Oakcrest Ave.. Baltimore 14, Md. (Martin Co.) PETERSON. Jack D. (G) 3029 123rd St.. Toledo II. Ohio (Owens-Illinois) I'E: F.KSON. Jack L. iRI) ->JO Milan Ave. South )>a>ade:'.a. u'uiit. t M f gr. Equipmeu t i PETERSON. John A.. Jr. (W) Metal 3t Thermit Corp.. Carteret. N. 1. PETERSON. O. M. f.M) Lithium Corp. ot Amertca Hanna Bldg.. Cleveland. Ohio PETERSON. W. H . lr. (R> Valentine Fire Brick Co. Div. A. P. Green Fire Brick Co. Woodbridge, N. J. PETRIE. Lloyd R. (W) 305 Western. Abingdon, III. (Abingdon Potteries, Inc.) PETT. Tyler G. (G) Kopp Glass, Inc. Swissvale. Pittsburgh 18. Pa. PETTY. Frank fW) 2771 W. 230th St. Fairview Park 25, Ohio (Cleveland Ceramic Corp.) PETTY. Howard E. (S) 3131 Ryons. Lincoln 2. Near. (Yankee Hill Brick Mfg. Co.) PETTYJOHN. Robert R. (3) 3777(J L'dall. San Diego 7, Calif, t Convair) PFAUDLER CO. (Sidney W. McCann) 1000 West Ave., Rochester 3. N. Y. PFEIFF. C. H. (R) Curran-Pfeifl Corp. Box 527. Metuchen, N. J. PFEIFFENBERGER. Lucis E. University of Illinois 204 Ceramics Bldg.. Urbana. III. PFEIFFER. Wilbur H. (EFI) Frigicaire Div.. Generai Motors Corp. Engineering Lab.. Plant 2 Dayton 1, Ohio PFINGSTEN. H. W. fS) 1410 Colonial Blvij.. Carton, Chio I Metropolitan Brick. Inc.) PFINGSTEN. William. Jr. S) Metropolitan 3rick. Inc. Box 27. East Palestine. Ohio PFLEGER. George E. ( M ) Harshaw Chemical Co. 3237 S. Garheid, Los Angeies 22. Calif. PHADKE. V. S. Central Potteries. Ltd. Itwari, Nagpur 2. India PHELPS DODGE CORP. MORENCI BRANCH (L. L. McDaniel) Morenci. Aria. 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 Qay Mines Corp.) PHELPS. Smart M. (RF) Mellon Institute. Pittsburgh 13. Pa. PHILIPS ELECTRONICS. INC. INSTRUMENTS DIV. fC. J. Woods) 750 S. Fulton Ave. Mount Vernon, N. Y. PHILLIPS. Adrian W.. Jr. fR) 316 Fairmont Ave.. New Castle. Ta. (Shenango China. Inc. Shenango Refractories Div.) PHILLIPS. Charles J. (GI) Rutgers. The State University School of Ceramics New Brunswick. N. J. PHILLIPS. Donald G. (B) 2804 Lynne Ave.. Hatborn. Pa. (Precision Grinding Wheel Co.) PHILLIPS. Edwin L. (MI) Carolina Pyrophyllite Co. Box 2414. Greensboro. N. C. PHILLIPS. Gordon D. (W) Olean Tile Co. 103 S. Clark St., Olean. N. Y. Vol. 30, No. 10 (1037) PHILLIPS. James G. (R[) Dept, ot Mines & Technical Surveys Mines 3rar.ch. Industrial M ir.erais' Div Lydia St.. Ottawa, Oat.. Canada PHILLIPS. Richard A. (WV. 1836 Willow Ave. N i a gar a "ails. N. Y. (Sprague Electric Go ' PHILLIPS. W. E.-tc (C) Dupiate Canada Ltd.. Bax 3.57 Terminal .A. Toronto. Or.t.. Canada PHOENIX. Richard C. i iVii R. R. 1. Wynnewoo.i Bound Brook. N. J. t Moore 3t Munger) PICKARD. M. H. (M) United Slates 3orax & Chemical Cjr(i. 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 '.9. Pa. PIEPER, Arthur O. (M) 105 Trevor Court Rd. Rochester 10. N. Y. (Heany Industrial Ceramic Corp.) PIERCE GLASS CO. <J. G. 3ozzo) Railroad Ave.. Port Allegany, ?a. PIERCE, J. Allen (R) 798 Chalmers P1-, Pittsburgh 16. Pa. (Harbison-Walker Refractories Co.) P1ERPONT, Harlan T.. Jr. (3) Norton Co., 1 New Bond St. Worcester 6, Mass. PIERSON. James F. (MI) Pemco Corp.. Sales Dept. 5601 Eastern Ave.. Baltimore 24. Md. PIGOTT, Phillip G. (R) Box 345, NorTis. Tenn. (United States Bureau of Mines) PILKINGTON. Lawrence H. A. Messrs. Pilkington Bros., Ltd. Glass Works. St. Helens, England PINCL'3. Alexis G. (3) General Electric Co.. Res. Lab. 3ox 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) Coming Glass Works. Coming. N. Y. PITHER. Leslie F. (G) Owens-Illinois Technical Center 1700 N. Westwood Ave. Toledo 7, Ohio PITTENGER. John T. (W) Box 207, Neweil. 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 Whitthome 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 Roster S7 PLACE, Tom M. iBI) Heiipot Corp. 3ox ->53. Newport 3each. Calif. PLACE. Thomas Nl., Jr. (3) Heiipot Corp. Box 458. Newport Beach. Calif. PLaOoc. Vernon L. iC) Westinghouse Electric Corp. Bloomneid. N. J. PLANJE. Christian W. t R FI) Glaadih?, McBean & Co. 3901 Los Feiiz Blvd. Los Angeles 59. Calif. PLANJE. Theodore J. M. I 3) 4 Summit Ave., Roll*. Slo. (Missouri School of Mines) PLANKENHORN. William J. (EFI) Chicago Vitreous Corp. 1427 S. 55th Ct. Cicero 50, III. PLATT. Allan S. (S) Structural Clay Products Institute 1947 Grand Central Terminal Bldg. New York 17. N. Y. PLATT. James (S) Structural Clay Products Institute 2556 CIcarvicw Ave., N. W. Canton. Ohio PLEASANTS. Luther E.. Jr. (G) 6002 Brookfield Rd., Richmond Va. (Allied Chemical 8c Dve Corp.) PLESSINCER, Clyde B. (S) Lindale. Texas (Reliance Clay Products Co.) PLOETZ. Edwin C. H. (El) 8151 Hillcrest Dr. Wauwatosa 13, Wise. (A. O. Smith Corp.) PLOETZ. George L. (R> 261 Swaggertown Rd., Scotia 2, N. Y. (General Electric Co.) PLUMBO. Victor A. (G) General Glass International, Inc. 5 S- Virginia Ave. Atlantic Citv. N. T. PLUMMER. Harry C.` iSF) Structural. Clav Products Institute 1520 18th St.. N. W. Washington 5, D. C. PLUMMER. Norman (S) State Geological Survey of Kansas Lawrence. Kans. PLUMMER. William A. 'C) Corning Glass Works. Corning. N. Y. PLUNKETT. Jerry D. 73 Westgate. Cainoncge 39, Mass. PLUSCH. John A. (W) 63 Sorjce St.. Westfield. Mass. (Corrland Grinding Wheels Corp.) POF7EN3ERG. Scott (M) 11616 Chenault St. Los Angeles 40, Calif. (Aluminum Silicates Co.) POISSON. Louis Faiencerie de 3adonviller Badonriiler, Meurrhe er Moselle, France POLAND. Milton E. (WJH 203 W. LaSalle, Royal Oak. Mich. (Champion Spark Plug Co.) POLAR. Alfredo (W) National Tile Sc Mfg. Co. Anderson. Ind. POLE. Gordon R. (BFT) 2592 S. Snore Blvd. White Bear Lake 10. Minn. (Minnesota Mining Sc Mfg. Co.) POLES. Alfred P. (W) 325 Arborlea Ave.. MorrisviUe, Pa. (Gifton Ceramic Mfg. Co.) POLHEMUS. D. W. (R) Carborundum Co. Perth Amboy. N. J. POLK. Arthur E. (W) R. R. 1, Dowagiae. Mich. (Produce.Terminal Corp.) POLSON. John B. (RJ) 724 Riverview Dr. North Augusta. S. C. (Babcock Sc Wilcox Co.) Vol. 36, No. 10 (1957) POMEROY, William T. (W'l Sterling China Co. Ease Liverpool. Ohio POMPEI. Luigi SANAC Soc. per Aa. Rcfra::ari Argille e Caoiini Via Martin Piaggio 13-7, Genova, Italy POND, Marvin H. t\V) 221 Ridge Ave., Gettysburg, Pa. i Climate Control Co.) POOLE, James P. (G) 3 rock way Glass Co.. Inc.. Plant 2 3rockwar, Pa. PORCELAIN METALS CORP. (C. J. Kieinhans) 1400 S. 12th St. Louisville 10. Ky. PORST, Edward G. (El) 1413 Stonewood Rd., Baltimore 12, Md. (Pemco Corp.) PORTER, Frank R. (EFI) 318 E. Clark St.. Crown Point, Ind. (Inland Steel Co.) PORTER. J. L. (B) Kaiser Aluminum 2k Chemical Corp. 1924 3roadway. Oakland 12, Calif. PORTER. Wallace S. (W) Universal-Rundle Corp., Box 138 Hondo, Texas PORTS. David W. 2647 W. 68th St.. Chicago 29. 111. POSEY IRON WORKS. INC. (Frank A. Fix) Brick Machinery 3c 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 3. N'. J. POSTE. Emerson ?. (EFI) 616 Baldwin St.. Chattanooga 3, Tenn. (University c: Chattanooga) POSTLEWAITE, Donald E. (WI) Universal-Rundle Corp., Box 300 Redlands. Calif. POTTER, Alan National Bureau of Standards Conn. Ave. 3c Van Ness Sr.. N. W. Washington 25, D. C. POTTER. Charles (G) Amersil Co. 635 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 rOTTIER. Henri Cie. Generale d'Electro-Ceramique 12 Rue de la Baume, Paris S', France POTTINGER. R. (M) Vitachrome. Inc.. *21 E. Sixth St. Los Angeies 14, Calif. POTTS. Amos P. (SF) 359 E. Main St.. Logan. Ohio (Logan Clay Products Co.) POULOS, Niek E. (B) 1764 Flagler Ave. N. E., Atlanta. Ga. (Georgia Institute of Technology) POULTON. Robert F. (W) 2763 N. CongTess Rd., Camden 4, N. J. (Universal-Rundle Corp.) POUNDSTONE. William W. (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22. Pa. POWELL, H. Eugene (G) 1061 Michigan Ave., Maumee, Ohio (Kimble Glass Co.) POWELL. Joe A. 2288 N. High St.. Columbus I, Ohio POWELL. John A. (W) 429 S. West End Ave.. Lancaster. Pa. (Radio Corp. of America) POWELL. Lee F. 'Ml Old Hickory Clay Co. 3ox 2.*;. Paducah, Kv POWELL. O. E. (S) Indiana Dram Tile Co.. Inc., Box 66 Brooklyn. Ir.d. POWELL. Richard H. (!() 12*5 >. Main Sr., jam.csrcwn, N. Y. POWERS. Don W 1201 Highland Ave., Abiier.s. Texas POWERS. Ed a in G. (S) Cia. Mexicans de Tubos de Albar.ai, S. A. Avcr.ida Marina Nacionai No. 2C0 Mexico 17. D. r. POWERS. George H. (R) Norton Co., Refractories Div. Worcester 6. Mass. POYNOR, T. Wythe (S) Acme Brick Co., Box 1273 Oklahoma City, Okla. POZEFSKY, Leo (R) 1940 Hopewell Rd.. Bethlehem, Pa. (3ethlehem Steel Co.) POZZANGHERA. Sam A. (G> Bausch it Lamb Optical Co. 635 St. Paul St.. Rochester 2. N. Y. PRACSaNKHADEE. Mar.oon Dept, of Science, Ministry of Industry Bangkok, Thailaod PRALOW, Walter E. L. Zahnflbrik Wienand Sohne Sc Co., Krs. Offerbach/Main Sprertdlirgen. Germany PRATT, Donald S. (E) 3422 Eighth Ave., Beaver Falls, Pa. (Ingram-Richarcson Mfg. Co.) PRECISION GRINDING WHEEL CO., INC. (Alexander M. Blakely) 3301 Torresdaie Ave. . Philadelphia 36, Pa. PRESCOTT. Frank R. (G) 1311 Kimbail Ave.. Arnold, Pa. (Pittsburgh Plate Glass Ca ) PRESTON, Frank W. (G) Preston Labs., Box 149, Butler. Pa. PREWITT. J. K. (S) Elgin Standard 3rick Mfg. Co. Elgin. Texas PRICE. Glen M. (R) General Reiractories Go., 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 iSc Co., Inc.) PRIDDY. K. O. (S) Barium Seduction Corp. South Charleston 3. W. Va. PRIESTLEY, J. Edward Huntly Brick it Fireclay Co., Ltd. Box 14, Huntly. New Zealand PRIMM. Herbert E. (R) 423 Parker Ave. San Francisco IS, Caiif. (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 it Jacob Sts.. Wheeling, W. Va. PRIOR. Gordon M. (M) 200 W. Third St.. Plainfield. N. J. (Specialized Ceramics Corp.) PRIOR. Harold D. (RI) Chas. Taylor Sons Co. Box 53, Annex Sta. Cincinnati 14, Ohio PROCTOR. W. J., Jr. (B) Southern Clays. Inc., Gordon, Ga. PROKOPEC. Robert (G) 309 N. Tillotson Ave., Muneie. Ind. (Ball Bros. Co.. Inc.) Roster S9 RO K.O PQW ICZ. Thcmas 1. (BJ) jj J>H:i>.:: it.. .\iarr.>. M;ia>. i Sprague Electric C.) ROMAT DIVISION, POOR Sc CO. (W. F. S;ark) *51 S. Market S:. Waukegan. III. RVOR, J -a a r d K. { K; Pryor-Uiggey Cj. Box 759. Whi:::er. Cali:. L'CKETT. John P., Jr. iO; Leeds Sc N'ortbrup Co. 4901 Stentcn Ave.. Philadelphia 44, Pa. UERTO 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 ULLIAM. George R. (B) Douglas Aircraft Co.. Inc. C-250 Ativ. Des. Sect. Lakewood Blvii.. Long Beach I. Calif. ULS. George (R) Acme Brick Co. Box 425. Fort Worth, Texas ULS, Josef, "Austria" United Enamei Works Wilhelminenstr. 80 Vienna 107. Austria UMPHREY. William I. Murex Weiding Processes Ltd. Hertford Rd. Waltham Cross, Herts, England UN'TNEY. L. E. (RI) 908 E. Jackson, Mexico. Mo. (Mexico Refractories Co.) UPULIDY. Alexander (R) 3100 S. Michigan Ave. Chicago In. III. (Armour; Research Foundation) URCELL. Burnette (S) 334 Judfon Ave.. Evanston. III. * Northsestem Terra-Corta Corp.) URINGTON BRICK CO. (R. L. Worcester) Box 11C. Galesburg. III. URNELL. Hugh J. (R) 761 Loretta St., Pittsburgh 17, Pa. (United States Steel Corp.) YRO REFRACTORIES CO. (A. C. Sanger) Box -*SN. Oak Hiil. Ohio o UIGLEY CO.. INC (R. J. Detnaison) 415 Madiso;: Ave., Mew York 17. X. Y. UIRK, John F. (W) Battelle Memorial Institute 505 King Ave., Columbus, Ohio 'UIRK. Virgil P. (B) .1754 Skyiine Dr.. Pittsburgh 27. Pa. ' (Westingnouse Electric Corp). R ABCHUK. Alexander (R) Kerr Manufacturing Co. 1111 E. Milwaukee. Detroit. Mich. A3IN. William J. (W) 19A-1 Redfieid Village, Metuchen. N. J. (Ferricore. Inc.) ADCZEWSXI. Otto-Emst Instituc fur Gesteinshuttenkunde Mauerstrasse 5, Aachen, Germany ADIO MATERIALS CORP. (R. D. 3ourgerie) 3325 N. Caiifomia Ave., Chicago 18, III. AGATZ. Eugene C. (M) Allen-Bradley Co. 136 W. Greenneld Ave. Milwaukee Wise. AGCON. Frank C. (G) Owens-Illinois General Engineering Dept. 3600 Alameda Ave., Oakland, Calif. OI.. 3f>. No. 10 (1057) KAHE. V:liom 800 N\ Mam S:., Washington. 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) 6H Rainbow Terr. Orchard Park. N\ Y. (Burtaio Brick Corp.) RAIT. J. R. Research Controller Hadtields Ltd. East Hecla Works, Shemeld 9, England RALSTON*. O. C. (MF) 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 (Ei Hojalata y I_amtnn. S. A. Apartadu Postal Monterrey. N. L., Mexico RAMM, Eric H. L. Brisbane & Wunderlich Ltd. Lord St., Ea*t Perth, West Australia RAMSDEN. C. E. C. E. Ramsden & Co. Ltd. Foley Colour & Chemical Works Fenton. Stoke-on-Trent, England RAMSEUR. Arthur. Jr. Box 1480. Georgia Tech. Sta. Atlanta. Ga. RAMSEY. Thomas II.. Jr. (BT) 1615 Homewood IN.. Dallas. Texas (Aluminum Co. of America) RAMTITE CO. fLouis J. Jacobs) 2563 W. 18th St.. Chicago 8. III. RANDALL. Theodore A. (D) State University of New York Coilege of Ceramics. Alfred. >;. 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. (3) E. I. du Pont de Nemours & Co.. Inc. Experimental Station Wiimington, Del. RAPP. Carl H. (WI) Globe-Union, Inc.. 900 E. Keefe Ave. Milwaukee 1. Wise. RAPP. H. W.. Jr. (W) Morton Pottery Co. 315 \V. Jefferson St.. Morton. III. RASMUSSEN. R. K. (G) Mississippi Glass Co.. Fullerton. Calif. RASMUSSEN. Wayland G. (S) Mason City Brick St Tile Co. 2Q0 Brick 6c Tile Bldg. Mason City, Iowa RASSNER. Donald D. (SI) 1014 Longbrook Dr.. Jasper. Ain. (Natco Corp.) RATCLIFFE. Harry J- (M) S3I President Ave.. Trenton. N. J. (Unique Kilns of Trenton, Inc.) RATCLIFFE. Temple W. (R) 244 Buffalo St,, Beaver, Pa. (Babcock St Wilcox Co.) RATHMANN. Clyde L- (G) Coming Glass Works, Coming, X- 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. Bex Georgia Tech. Sta. Atlanta, Ga. RAY. E. Harold (MI B. F. Draker.tcUi & Co ,, Ir.c Box 519. Washir.gtcn. ?a. RAY. John G (G) Syivacia Electric Products. Inc. Cottage Place. Mineola. L. I.. N. Y RAYTHEON MANUFACTURING CO. i Leonard Lcscr.sky.t roundrv Ave.. Waltham *4. Mas?. RAZEY, Robert M. (R> 486 Ashland Ave.. Detroit IS. Mich. (Great Lakes Sreel Corp.) REA. Robert F. (\VI) Diamor.ite Products Div. L'niced States Ceramic Tile Co. Shreve. Ohio REAGAN, Corr.eiius J. (Si 532 Woodmont St. East McKeesport, Pa. (Van Orrner 3rick Co.) REAGAN. Michael M. (E) Stamped St Enamelled Ware Ltd. Gueiph Ave.. Hespeler, Ont.. Canada REARDON. Daniei E. 3ox 4925. 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 Le.Movne Ave., Svracuse. N. Y. REDWINE. Richard H. 115 Wnodhurn Rd., Raleigh. X. C. RED WING POTTERIES. INC. (Thomas M. Arnold) Red Wing, Minn. REED. A. J. (S) 521 Woodbine 5t.. Willard. Ohio (National Clav Pipe Mfgrs.. Inc.) REED. Carl E. .O i 410 E. Main 2:.. Lancaster, Ohio (Sharp-Schurtz Co.) REED. George C.. Ill ( 3J' $46.44 N. 23th St.. South Bern 15. Ind. (3enriix Aviation Corp.) REED. Madison W., Jr. 7532 Rising Sun Ave.. Philadelphia. P.i. REED. Paui H. (R) 310*/* Fairmont Ave., New Castle, Pa. (New Castle Refractories Co.) REEVES, Harold. Sr. (W) Fitzpatrick Industries. Inc. Box 50. 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) Syivania Electric Products. Inc. E. Third St., Williamsport, Pa. REGOUT. Joseph F. E. N. V. de Sphinx, Maastricht. Holland REGOUT, L. F. H. N. V. Porseiein en Tegelfabriek Mosa Meerssenerweg 358. Maastricht. Holland REHM. Walter E. 6 Beachview, R. R. 3, Springneid. III. REID, Frank P. American Ceramic Society 4055 N. High St., Columbus 14, Ohio REID. P. S. Borax Consolidated Ltd. Borax House. Carlisle PL London S. W. 1. England REIMER. John J. (WT) Keystone Ridgeway Corp. Gettysburg. Pa. REIN. Peter (W) 1746 VV. Sycamore, Kokomo. Ind. (Kokomo Sanitary Pottery Corp.) Roster 91 H E1 N K c. . Arthur G. ( R) Johr.s-Mar.ville Sales Corp. 15JO Guiidhall BldS. Cleveland 15, Ohio REINKER. Gerald E. (G1 General Electric Co., Lamp Div. 1155 E. 15Crati St.. Cleveland 12, Ohio REISCHEL. F rank (W) 2/55 May:lower, Arcadia, Calif. (Dilectrar. ir.c.) REISINC. Joseph A. (Ml St. Josech Lead Co.. Zinc Smelting Div. Monaca, Pa. REISS. Max S. [El 59 Highland Terr. Canandaigua. N. Y. (Lisk-Savorv Corp.) REMDE. Harry F,, Jr. General Ceramics Corp. Kcasbey. X. J. REMINGTON. Victor H. (GFI) B. F. Drakenfeld 2t Co., Inc. Box 519. Washington. Pa. REMMEY. C. Bicltley (RF) Riciiard C. Remmey Son Co. Hedley St. 4 Delaware River Philadelphia 57, Pa. REMMEY. George B.. Jr. 17 Mars St.. Mexico, Mo. REMMEY-, John G. (R) Richard C. Remmey Son Co. Hedley St. Si Delaware River Philadelphia 57. Pa. REMMEY. RICHARD C.. SON CO. (G. 3ickley Remmey) Hedley St. 2c Delaware River Philadelphia 57, Pa. REMPES. Paul E.. Jr. (BO I74X Cre>thill. Roval Oak, Mich. RENFREW, J. Harvey (S) 51 Linden Park St., Rcxbury 20, Mass. (Herman G. Protze) RENOUF. Leonard J. (R) 542 Church St., Youngstown. N. Y. Titanium Alloy Mfj. Div., National Lead Co.) :RENSKERS, Richard H. (\VI) American-Standard Box 755. Kokomo. Ind. REPU3LIC STEEL CORP. ( Burton Longwell) 1420 Republic Bldg. Cleveland 1, Ohio RESCHETZ. Raymond R. 1515!) W. park, Champaign. Ml. RESER. Margie K. 977 Carlisle Ave.,-Columbus 11, Ohio (American Ceramic Society) REIGNING. Charles R. (R) 545 Boulevard. Westfield. N. J. (National Refractories Div. Mexico Refractories Co.) REUXING. George W.. Jr. (RI) 874 Newport Dr.. Pittsburgh 54, Pa. (National Refractories Div. Mexico Refractories Co.) | REUSCHE. Frank L. (W) 60 Congressional Pky. Livingston. N. J. (L. Reusche 2c Co.) REUTER, Raymond (R) National Aluminate Corp. 6216 W. 66 PL. Chicago 58. 111. REYNOLDS. Harry M. (G) Renite Co.. Box 565, 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) RHODES. Donald E. (B) Mallinckrodt Chemical Works 5600 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 23Jb Gienburn RJ., Augusta. Ga. (Babcock & Wiicox Co.) RHODES, Fraser 3. (WFI: .7154 Maple Ave.. Madeira. Ohio (3riggs Manufacturing Co.! RHODES, Ralph E.. jr. (Mi United Clay Mines Corp. 101 Oakiar.d St.. Trer.ton 6. N. J. RHODES. Raiph R. (RFI) 1729 Powell St.. Norristown, Pa. (E. J. Lavino 2i Co.) RHODES, William H. 154 East St.. Oneonta. N. Y. RICCI. Edward Michaei (RJI) 817 Main Sc.. Dickson City, Pa. (Harbison-Walker Refractories Co.) RICE. Hal H. (WI) 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 Cerr.uschi 1. Milano, Itaiy (Societa Ceramica Richard-Ginori) RICHARDS. Robert W. (S) Richards Brick Co. 2J4 Springer. Edwardsviile. 111. RICHMAN. Peter D. Box 746. Alfred. N. Y. RICHMOND. Joseph C. (EFI) '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) 520 W. Park Ave., Columbiana. Ohio (Kaiser Aluminum 4 Chemical Corp.) RICKER. Richard Yv. iEI) Aluminum Co. of America Alcoa Research Labs., Box 772 New Kensington. Pa. RICKEY. Charles J. (MJ) B. F. Drakenfeld Sc Co.. Inc. Washington. Pa. RICKEY. J. H.. Jr. (R) Ircnton Fire Brick Cj. Box 556. Ironton. Ohio RIDDLE. Frank H. IHrr.orr.r/. WFI) 14 Upland Rd.. Colorado Springs, Colo. (Champion Spark Plug Co.. Ceramic Div.) RIDGEWAY. Thomas J.. Jr. ?R) 294 Romayne Ave.. Joliet. III. (General Refractories Co.) RIEDER, Zoltan (B) American Electro Metai Div. Firth Sterling. Inc. 520 Yonkers Ave.. Yonkers. N. Y. RIEGERT. Richard P. (BI) 507 Orange Ave. Newport Beach. Calif. (Helipot Corp.) RIEPER. Gerald (W) 5555 Flint Ct. Indian Heights. Kokomo. Ind. (American Radiator 4 Standard Sanitary Corp ) RIGBY, James E. (G) Blue Ridge Glass Corp. Kingsport. Term. 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.. Kittanning, Ta. (Pittsburgh Plate Glass Co.) RILEY. Roger R. (R) 1774 Danesta Dr.. Concord. Calif. (Gladding, McBean & Co.) R IN DONE. Guy E. iGi Uepartiuvn: i'era:nic Ti/vhi'.uii.'gy Pennsylvania date L'r.iversity University Park. ?a. RINEHART. Daic W. iGl 1450 L'r.ion Ave.. Brackenri'igv. Fa (Pittsburgh Plate Glass Gi.i RINGEN. Robert E. '.Ml Paul O. Abbe. Inc.. 400 Tenter Ave. Little Falls. N. J. RISEDEN. O. D :Wi 5955 Nurick Dr.. Chai'.imi.tig::. :enr.. (American Lava Corp.; RISPLER. Z. W. Palestine Glass Works "Phoenicia" Ltd.. Box Haifa. Israel 163 RITLAND. Harold N. (G) 2555 156th Ave.. S. E.. Bellevue. Wash. (Boeing Airplane Co.) RITT. ?. E. (W) 910 Hillcrest Dr., Vienna. Va. (Melpar. Inc.) RITTER. Joseph S. (G'i Adamston Flat Glass Div. Rollana Glass Co., Box 6.11 Clarksburg, W. Va. RITTLER. Hermann L. (GI) I Meaaowbrook Apts.. Corning. N. Y. (Corning Glass Works) RITZ. Joseph W. (G i Sylvania Electric Products. Inc. 85-50 Kew Gardens Rd. Kew Gardens. L. I.. N. Y. ROACH. Carlton (G) Adamston' Flat Glass Div. Roiland Glass Co. Box 651. Clarksburg. W. Va. ROACH. K. C. (R) American Radiator 2c Standard Sanitary Corp. 40 W. 40th 5t. New York 13. N. Y. ROACH. Wilfred H. (G) 112 Renwick I.anr. ITnrseheads. N. Y. i Wesrtnghouse Electric Corp.; ROBB. Richard 3. (R) 209 Vine St.. Pittsburgh 18. Pa. (United States Steel Corp.) ROBBINS. Carl R. (B) National 3ureau of Standards Div. 9.5. Washington 53, D. C. ROBBINS. David (W) 1929 Summeriand St. San Pedro. Calif. (Northroo Aircraft. Inc.) ROBBINS. Martin D. (GJ) 86-15 Elmhurst Ave. Elmhurst. Queens. N. Y. (C'lemicci Enoineerinp) ROBERTS. John Taggart (EFI) 419 Park Blvd.. Glen Ellyn. III. (Crane Co.) ROBERTS. John W. (S) 5204 Hawthorne Ave.. Richmond 22, Va. (Southern Lightweight Aggregate Corp.) ROBERTS. Mervin Francis (E) II Plymouth PL. Gedney Sta. White Plains. N. Y. (de Lackner Helicopters. Inc.) ROBERTSON. James A. (R) Food Machinery 8t Chemical Corp. Box 8. Princeton. N. J. ROBERTSON. John M. (E) 5008 Rosedale Blvd.. Louisville 5. Ky. (American Radiator & Standard Sanitary Corp.) ROBERTSON. Leon F. (G) Brackway Glass Co.. Tne.. Brockway, Pa. ROBERTSON. Randal K. (S) 906 University Tower Bldg. Montreal. Que., Canaria (Laprairie Brick 2t Tile. Inc.) ROBERTSON. R. Kenneth (S) 133 Thornton Ave. ML Royal. Que.. Canada (Laorairie Brirk 2r Tile, Inc.) ROBESON PROCESS CO. ('Asgeir Riis) Box 960. Erie. Pa. Roster 93 iO 3 1 LL A R D, Harvey J. (R) E.xolon Co.. 1`jU'} LI. N'.as^ra El. T'jii.v.iainl.i. X. Y .tOBINETTE. Ortr.. Jr. New 3rick Apia.. Apt. _'j Ciemaon. E. C. ROBINSON CLAY PRODUCT CO. (\V. E. Robinson) 3ox 1070 65 W. Stale Si., Akron 9, Ohio lOBINSON. Donaiii R. t\V) Tile Connell oi America Rurgers. The Slate UnNcr.irv School of Ceramics New Brunswick, X. J. ROBINSON, F. George (.S) 500 S. Santa Fe Dr., Denver, Coio. (Robinson Brick & Tile Co.) IOB1NSON. Gilbert C. (XF'i Sox 91, Clemson, S. C. (Clemson College) ROBINSON. Louis G. (E) Louis G. Robinson Labs. Sox 761, Cincinnati 1. Ohio lOBINSON. Neal iS) Robinson Ventilating Co. Zelienopie. Pa. ROBINSON. Percy Burr-Ill Diamond Gay Co. Ltd. Hanshill. Stoke-on-Trent. England ROBINSON. Phillip 23 Pymble Ave. Pymble, N.S.W., Australia (Gallard & Robinson Pty. Ltd.) lOBINSON. Richard E. (RI) Johns-Manville, Zelienople. Pa. ROBINSON, Richard R. (SI) 2232 Parkway Blvd., Alliance, Ohio (Alliance Clay Product Co.) ROBINSON VENTILATING (J. L. Henderson, Jr.) Zelienopie, Pa. :OBINSON. i\V. E. <S> CO. Robinson Gay Product CoBox 1070. 45 W. State St. Akron 9, Ohio OBINSON. William L. (RJ) 112 W. Sixth St., r niton. Mo. 1 Karbison-Walker Refractories Co.) OBSON. H._L. (G) 2 Water St.. Lewiston. N. Y. (Olin Mathieson Chemical Corp 1 OBSON. James T. IMF!) Allied Engineering Division Ferro Cnrp., at;0 E. 54th St. Cieveianu 5. Ohio OBSON. William G. (B) Atomics International 21600 Vanowen, Canoga Park, Calif. OCKE, L. C. (GF) Maryland Glass Corp. 2H7 Wicomico S:.. Baltimore 30, Md. OCHESTER. Thomas W.. Jr. (G) 210 Delevan Ave.. Corning, N. Y. . (Coming Glass Works) OCHFORD. David S. Box 787. Alfred. N. Y. OCHOW. W. F. (RF) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. OCKFORD BRICK & TILE CO. (G. H. Galvin. Jr.) Rockford. Iowa OCKWELL. Dale L. (RJ) 5 East "D" St.. Belleville. III. (Walsh Refractories Corp.) ODEFER. Howard H: (GJ Rodefer-Gleason Glass Co. Box 550, Bellaire, Ohio ODGER. John K. L. G. Sparking Plugs Ltd. Putney Vale London S. W. IS. England ODMAX. Garence .1. (E) 1315 S. Union Ave.. Alliance. Ohio (Alliance Ware. Inc.) ODRIGUEZ. Alfonso F. (G) Vidriera Monterrey, S. A. Apartado 162, Monterrey. N. L.. Mexico ol. 30. No. 10 (I0o7) RODRIGUE?.. A. R. (. Ql> 29 ?:r: St.. r ranklinville. N. V. (Ki-Q Div., Acrovox Corp.; ROE. La.vrcs'.cs A. (G'r 712 Mi-rct: Ri.. Lake Blnff. I!l. * Imematiunai Minerals Chemical Corp.) ROE. ShcM.Ki 7.. jr. (Gj) Thatcher Class Mfg. Co. Elmira. X. V. ROFr. Robert W. (Mj Bell Operations 4J3 Birch Pt.. Westhe-d. N. J. ROFr. W. Wallace (M) 14 Glenside Dr., West Orange. J. (Whittaker. Clark it Daniels, Inc.) ROGaTZ, Alvin (B) Maida Development Co. 214 Academy St., Hampton. Va. ROGERS. Edwin J. (WI) Scintilla Div. Bendix Aviation Corp., Sidney, N. Y ROGERS, Gregory L. (R) 9500 S. Norwalk Blvd. Los Nietos, Calif. (Pacific Clay Products) ROGERS. John W. ( R` Laclcde-Christy 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. ROLKE. Herbert J. (I) Sociedade de Engenharia Industrial Rua Marconi. 23,3* andar Sao Paulo, Brazil ROMANO. Pasquaie J. fWD 1212 Cavalier Ln.. West Chester, Pa. (Foote Mineral Co.) ROMINE. Donald J. 606 S. Monroe St.. West Frankfort. III. ROOD. Joseph L. (G) 56 Farnsworth RH. Rochester 23. N. Y. (Bausch St Lomh Optical Co.) ROONEY. Thomas E.. HI (Rl Empire Fire 3rick Co. 219 Murrr.v. Forr Wayne, Iml. ROOT. H. Dean (WI) Westinghouse Electric Ceramics Section 7325 Penn Ave.. Pittsburgh .3. Pa. ROOT. Lawrence L. (M) Stanford Pottery Inc. 40 S. 1 Sth St.. Sebring. Ohio ROQUES. Rodney A. (W> 413 Boyd St.. Golden. Colo. (Coors Porcelain Co.) ROSE. Ralph ( R11 H. **'. Porter &.. Inc.. Refr. Div. 2500 First National Bank Bide. Pittsburgh 22. Pa. ROSENTHAL. E. K. (W) 234 Napoleon St. Playa Del Key. Calif. (Metlox Mfg. Co.) ROSENTHAL. Ernst 246 Park West, Marble Arch London W. 2. England (Rosenthal China Ltd.) ROSENTHAL. Jerome J. (RJ) 2U1-C 34ih St.. Los Alamus, N. M. (Los Alamos Scientific Lab.) ROSENWINKEL. George O. (R) North American Refractories 59 E. Van 3uren. Chicago 111. ROSENZWEIG. Herman (G) Texglass. Inc.. Decatur. Texas ROSICLARE LEAD & FLUORSPAR MINING CO. (J. Blecheisen) Rosiclare. III. ROSLUND. J. A. (R) Globe Brick Co.. Box 765 East Liverpool. Ohio ROSS. Donald W. (RFl/ 5929A Oakhurs: Pi., St. Loui* 12. Mu. (Consultant; ROSS, H'^anJ. II . L: J4'r.) ArchwouJ Ave. C*cv elanu 9, Ohio Ferro Corp.; ROSS. Stuart T. B) '.*01 3rookla-An Rd. Birmingham. Mich, i Chr> sier Corp. ROSS i N(J. Barry R Bon l.iVn. Alfred. N Y. ROSS-TACONY CRUCI3LE CO. (A. M. Johnson) Robbins it Milaor Sts. Philadelphia 55. ?a. 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. N. Y. ROUDA3USH. Henry L. (R) General Refractories Co. 3201 Fruitland Ave. Los Angeles 53. Calif. ROUDABUSH. Ned W. (R> 311 Car.alewood Rd.. Broomall. Pa. (General Refractories Lv.i ROUP. RoIIand (WFI; Centralab Div.. Globe-Union Inc. 900 E. Keefe Ave.. Milwaukee 1, Wi-c. ROWE. Arnold E. (E) 1210 Cilworth Rd., Charlotte, N. C( Douglas Aircraft Co.) ROWLAND. Donald A. (B> 3 Maple St., Bath, N. Y. (Westinghouse Electric Corp.) ROWLAND, Richards A. ( B) 3737 Bellaire Blvd.. Houston 25. Texa* (Shell Development Co.) ROWLAND. R. W. (3F) New Castle Refractories Co. New Castle. Pa. ROWLANDS. Robert R. (WI) Universal-Rundle Corp. Box 300. Redlands. Calif. ROY, H. N. lodian Ceramic Society Dept, of Ceramics Benares Hindu Univ. Benares. India ROY. James W. (B) West St.. Lenox. Mass (General Electric Go.) 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 Sc THE FAIENCE MANUFACTORY ALUMINIA (Chr. Christensen) Smailegade 4S Copenhagen F.. Denmark ROYAL. Herbert F. (WF) 345 Pilgrim Rd.. Birmingham. Mich. (Champion Spark Plug Co.) ROYER. Rene Ingenieur-Conseil (E.C.P.) 60. Rue D'Issy, Vanves (Seine) France RUARK, A. E. (G) Atomic Energy Commission Research Div.. Washington 25. D. C. RUDD, Richard D. (M) Carborundum Co. 33J5 W. 47th St.. Chicago J2. 111. RUE. Charles V. (BI) 143 Lindsay Ave., Tiffin, Ohio (Sterling Grinding Wheel Co.) RUECHEL. Waiter C. (RF) Hoppers Co.. Inc., Hoppers Bldg. Pittsburgh, Pa. RUFFNER. Larry J. (W) Jeffers Electronics Div. Speer Carbon Co. Hoover Ave.. Du Bois. Pa. Roster O.i RUGC. Oruiund I. lG1J6I5 Meyers RJ . Detroit 27, Mich (Ford Motor Co ) RL'GH, Kenneth A. (R) Gartield Refractories Co. Bolivar, Pa. RUH. Edwin (R) 739 Fruithurst Dr. Pittsburgh 24. Pa. (Karbison-Walker Refractories Co.) RUH. Robert (R) 152 Diana Ln.. N.. Fairborn, Ohio (Wright Air Development Center) RUIZ, Jorge Martin (R) Ameren: Ingenieros. S-A., Ixtaccihuatl 5 (Insurgentes & Affuascalienres) Mexico 11, D. F. RUIZ, Robert A. (R) 114 W. Home St., Vandalia, Mo. (Walsh Refractories Corp.) RULON". Richard M. (G) Sylvania Electric Products, Inc. 60 Eoston St., Salem, Mass. RUSHMORE. Murray, Jr. (M) Moore 3c Monger 22 Rector St., New York 6, N. Y. RUSO. Feiipe B. Gal Lano 109, Kabana, Cuba (General Glass Equipment Co.) RUSOFF, Samuel (R) Basic, Inc. Maple Grove, Fostoria, Ohio RUSSELL. Howard F. (El) 3118 Woodworth PI. Pottowatomie Hills, Hazelcrest. (Ir.gersoll Products Div., Borg-'.Varner Corp.) III. RUSSELL. Leslie A. (G) Continental Can Co., Inc. Haael-Atlas Glass Div. 319 S. Main St.. Washington, Pa. RUSSELL. Lewis E. 20 Kirk Close, Oxford, England (U. X. Atomic Energy Authority) RUSSELL. Norman Keith (RI) 24 Lorgcorse Ln., Paoli. Pa. (Richard C. Scanty Son Co.) RUSSELL. Ralston, Jr. (XFI) Dept, of Ceramic Engineering 126 Lord Hall. Ohio State University Columbus 10, Ohio RUSSELL. Robert G. (G) R. R. 2. Granville. Ohio (Owens-Coming Fiberglas Corp.) RUSTLESS IRON CO.. LTD. (H. Whitaker) Lawkhoime Ln. Keighiey, Yorks. England RUTHERFORD. Thomas C. (S) West Virginia Pulp Sc Paper Co. Charleston. S. C. RUTLEDGE. Campbell. Jr. (G) Coming Glass Works. Coming. N. Y. RUZICKA. Roy H. (EJ) 15013 Reddington Ave. Maple Heights. Ohio (Ferro Corp.) RYAN, Joseph D. (G) 3013 Middlesex Dr., Toledo 6, Ohio (Libbey-Owens-Ford Glass Co.) RYAN, Larry D. Box E. Gig Harbor, Wash. RYDER. Robert J. 221 E. McCormick Ave., Apt. 2 State College, Pa. RYLAND, H. W. (W) Coors Porcelain Co. 600 Ninth St., Golden. Colo. RYNDERS. Gerald F. (BI) National Bureau of Standards Die. 9.1. Washington 25, D. C. RYSHKEWITCH. Eugene (R) 322 Van Emburgh Ave. Ridgewood. N. J. (National Beryllia Corp.) Vol. 36, No. 10 (1957) S SA3URI. Osamu Murats Mfg. Co . Ltd. Technical Lab. Kaiden. Nagaoka, Otoki:r.igu:i Kyoto, Japan SADA, Patricio (E) Troqueles 4 Esmaltes S. A. Apartaco Postal 371 Monterey. N. L.. Mexico SADLER, Arthur G. (R) Mines Sc Technical Surveys Mines Branch, 40 Lydia St. Ottawa, Ont., Canada SADLER. Walter L. 219 E. James St.. Falconer, N. Y. SAEXG-XUTO. Padcrmrata Box 2111, Georgia Tech. S ta. Atlanta, Ga. SAGINOR. S. V. (B) Gladding, McBean 4 Co. 2901 Los Felix Blvd. Los Angeles 39, Calif. SAI3EL, 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 3c 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 fW) 17709 Ibbetsor., E ellftr wer. Suit. (Dougias Aircraft, Inc.) SAMMARONE, Americo, Jr. Sammarone S. A. Indastria Ceramics Rua Jose Bonifacio 210 Sao Paulo. Brazil SAMMONS. Frederick C. (R) General Refractories Co. 3247 Fruitland Ave. Los Angeles 58. Calif. SAMPSON. H. B. rS) Athens Brick Co. Box 751, Tyler. Texas SAMPSON. J. Leonard (Cl 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 Sc Co. Inc. Box 519. Washington. Pa. SAMUEL. Donald G. (R) E. J. Lavino Sc Co. Box 29. Norristown. Pa. SANDERS. Clyde A. (R) American Colloid Co. Merchandise Mart. Suite 313 Chicago 54. III. SANDERS. Herbert H. (D) 17926 Daves Ave.. Los Gatos. Calif. (San Jose Stare College) SANDERS. Loren D. (BJI) ' 1233 Delaware Ave., S. W. Canton, Ohio (Ohio Brass Co.) SANDERSON. K. W. John G. Stein 3t Company, Ltd. Bonnybridge, Scotland SANDFORD, Per Johan Folke Chalmers Tekniska Hogskola Gibraltargatan 5J. Goteborg. Sweden SANDMEYER. Karl H. (RI) 85 Pleasantview Dr.. Jamestown, N. Y. (Carborundum Co.) SANDS, George imperial Soteiting Corp. Avonrr.outh, Bristol. England SANFORD BRICK Sc TILE CO (James V. Isenhour). Color., N. C. SANFORD. Eibert A. . E) 375 Oakridge Dr., Rochester 17. N. Y (Pfaudler Co.) SA.NFORD. Robert E. Box 236, Daiton. N. Y. SANGER. A. C. (R) 1'yro Reiractories Co. Box 433. Oak Hill. Ohio SAN MIGUEL BREWERY, INC. (A. Villa-Abrille) 1112 Aviles Manila, Philippines SANNER. R. Dean R. R. 1, Argenta. III. SANT, John W. (W) Universal-Bundle Corp. Mt. Vernon 5t Orchard St. Camden. N. J. SANTOMIERI. S. Lewis (WI) Box 8, Botkins, Ohio (Botkins Engineering) SARAKAUSKAS. Raymond (B) National Carbon Co., Research Labs. 3ox 6116, Cleveland 1. Ohio SARCENT. Edward C. (R) Zirconium Corp. ol America Solon, Ohio SARRAF, Edward M. (R) 20001 Laure: 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) l.I-Chome Yokokawa-Bashi Sumida-ku. Tokyo, Japan SASTRY. 3. S. R. Pennsylvania State University College of Mineral Industries University park. ?a. SAUEREISEN. C. Fred (W) Sauereisen Cements Co. Sharpsburg Sta.. Pittsburgh 13. Pa. SAUNDERS. Alfred C. (RI) Eckhardt Rd.. Hamburg. N. Y. (Electro Refractories 4 Abrasives Corp ) SAUNDERS. Hollis S. (E) O. Hommel Co.. Box 475 Pittsburgh 30. ?a. SAUNDERS. R. H. fS) Charleston Clay Products Co. Box 349. Charleston 22. W. Va. SAUNDERS. Richard A. (S) 2626 Larwood Dr., Charleston. W. Va. (Charleston Gay Products Co.) SAUNDERS. Stephen C. Box 787. Alfred. N. Y. SAUSVILLE. Joseph W. (R) Curtiss-Wright Corp., Quehanna. pa. SAVELL. Fred H. (W) Western Talc Co. 1901 E. Slauson Ave. Los Angeles 53. Calif. SAVIOLI. Francesco SANAC. Via Marin Piaggio 13 Genova. Italy SAWAI. Tkutaro 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., Worcester 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.) Roster 97 iCHAA. r ertli:i.ml A.. J r -'A > 34Paumjnakc Avc., 3abylon. N*. \ . (Svlvania Electric Products lac.) SCHAAL, Frank \V\. Jr. (\V) 3. r. Draker.teid 3: Co.. Inc.. Box 5 19 Washington, Pa. SCH A3ACKER, H. Eric (E) Erie Ceramic Arts Co. 3123 W. 22nd St.. Erie. Pa. SCHABO. Roy G. (Gi Gcnerai Electric Co.. 17325 St. Clair Ace Cleveland 10, Ohio Mf-.;. Ue;>r. SCHAEFER. Carl F. (\V) 327 Sheffield Ave.t Flint, Mich. (A. C. Spark Plu* Div. General Motors Corp.) SCHAEFER. Earl F. (G) 3129 Radford Dr., Toledo 14. Ohio (Owens-Illinois) SCHAEFER. Earl F.. II i02 E. Chalmers, Champaign, 111. SCHAEFLE, Max Thaynjen/SH, Switzerland (Tonwerke Thayngen A. G.) SCHAFER. C. B. (G) Libbey-Owens-Ford Glass Co. 1701 iE. Broadway, Toledo 3. Ohio SCHANER. Burton E. (B) Wcstinghouse Electric Corp. Box 1468, Pittsburgh 30. Pa. SCHATZHIN, Harvey (W) Architectural Tiling Co. Inc. Cass/Jackson Sts., Keyport, N. J. SCHAUSS. Edward P. (G) 3846 Corina Way, Palo Alto. Calii. (Kaiser Aircraft Si Electronics Corp.) SCHELL. Donald C. (E) 6422 W. 23th St., Berwyn. 111. (Armour Research Foundation) SCHIEFr ERLE, James A. (E) 4501 Station Rd.. Louisville 5. Ky. (Generai Electric Co l SCHIENE. Juer.ttn J. (R) 7614 Kingston Ave., Chicago 49, 111. I United States Steel Corp.) SCHIFFERLI. Leo M.. Jr. (R) 3001 Westmoor Dr.. Kokomo. Ind. (Haynes Stellite Co.) SCHLEGEL. Roland F. Rua I.ngiaterra 233. Sao Paulo. Braid SCHLEHR. W. Raymond (GI) Ford Motor Co.. Glass Plant Dearborn, Mich. SCHLOEMER. Hermann Mineraiog. Institution of Ur.iv. Tuebingen. Bismarkstr. 50 Tuebingen. Germany SCHLOTZHAUER. Leon R. (R) R.R. 2. Painted Post. N. Y. (Corning Glass Works) SCHMID, Arthur W. (G) Arthur W. Schmid Co. 1414 Investment Bldg., 239 Fourth Ave. Pittsburgh 22, Pa. SCHMIDT. Beuther L. (R) Anchor Hocking Glass Corp. Lancaster. Ohio SCHMIDT. William G. t S) Box 187. Burnt Hills, N. Y. (General Electric Co.) SCHMUNK. Louis (W) 70 Dunedin Dr. Toronto 18. Ont.. Canada (American Standard Products Ltd.) SCHNEIDER. Claude W. (S) Schneider Brick St Tile Co.. Inc. 2399 Front St., Slidell, La. SCHNEIDER. LaVoy H. (E) S Maple Ct.. Hamilton. Ohio (Ferro Corp.) SCHNEIDER. Matthew P.. Jr. (S) 2648 .Louisa St.. Slidell. La. (St. Joe Brick Works, Inc.) SCHNEIDER. Richard R. 179 Dunhams Cor. Rd. Milltown, N. J. Vol. 3fi, No. 10 (19o7) .ML I I) X . f.imuci jjj.s Lancer Dr. Jr. < rv I ) Wen Hyattsville. Mu. (National Bureau of Standards* 5CHOELLKOPF. Robert S. (\V) Carborundum Co. of Puer:o Rica Box in:. Mayaguez. Puerto Rico SCnO E NIN G E R, Irvin W. (WI 5250 N. Sboreiand Ave. Milwaukee 17. Wise. J Cmtmlab Div.. Globe-Union Ir.c ) -"tCHOsN LaUB, Robert A. iB) Harrop Ceramic Service Co. Box 5333, Shepard Sta. Columbus 19. Ohio SCHOEPPEL. Norman (RI) 10 Elm Tree Dr., Mexico, Mo. (A. ?. Green Fire Brick Co.) SCHOFIELD. H. Zane (RFI) Hoppers Co., Inc., Research Dept. Hoppers Bids'.. Pittsburgh 19. Pa. 5CHOLES, Addison B. (G) Interlectric Corp., Warren, Pa. 5CHOLES. S. R. (GF) Box 752. Alfred. N. Y. (State University of New York College of Ceramics) SCHOLS. Leon V. F. M. St. Lambertuslaan -(a Maastricht, Holland C Regout* Matt hey) SCHOONOVER, I. C. (B) National 3ureau of Standards Washington 25, D. C. SCHOTSMAN. J. Kruisstraat 31, Dieren. Netherlands (N. V. Enamel Works "de Yssel") SCHOTTLAND, A. H. (G) Standard Bent Glass Co.. Butler, ?a. SCHOTTS. Walter H. (MFI) 23 E. Southington Ave. Worthington, Ohio (Harroo Ceramic Service Co.) SCHRADER. David M. (R) 7*2 Retch Ave., Massillon. Ohio (Kaiser Aluminum 3: Chemical Corp.) SCHRAMM. Edward (Wr) Onondaga Pottery- Co. 13:8 W. Favette St.. Svracuse N. Y. SCHRECXENCOST. Don (OF) 2617 St. Clair Ave. East Liverpool, Ohio (Homer Laugnlin China Co.) SCHRECKENGOST. Viktor (D) 2255 Stillman Rd. Cleveland Heights 18, Ohio (Salem China Co.) SCHREI3ER, Edward Box 948, Alfred. N. Y. SCHREIBER. Karl L. (W) "El Anfora" S. A. Espaida Penitencieria. Mexico. D. F. SCHRICKEL. Herman H.. Jr. (G) 178 E. Pulteney St.. Coming, N. Y. (Coming Glass Works) SCHROEDER. Fred W. (RFI) North American Refractories Co. Research Center. Cunvensville. ?a. SCHROEDER. Herbert S. (R) 6 Conover Ln., Red Bank. N. J. (Carborundum Co.) SCHUCX. John F.. Jr. (WI) R.R. I, Apple Creek, Ohio (Alite Div., U. S. Stoneware Co.) SCHUENZEL. Ernest C. (W) Cavo Dr.. Poughkeepsie. N. Y. i (International Business Machines Corp.) SCHULHOF. Andres Lozadur. Grandes Fabricas Argentinas de Ceramiea, S. A. Boulogne. F.C.N.G.B. Buenos Aires, Argentina SCHULTZ. Donald G. (S) 3119 Woodworth. Haxelcrest, 111. (Chicago Brick Co.) SCHULTZ. Jack M. (W) Aluminum Co. of America 610 New Center, Detroit 2. Mich. cCHU LTZ. J.ur.ca B. ;Sj 1321 E. Robir.son St. North Tonawar.da, N. V. (National Cvpsum Ca.) SCHULTZ. John. Jr. I E- General Electric Cu. Metallurgy .i Cerr.rv.C' Lah Appliance Park. Bldg. 5. Rr: Loui>\ iile. Ky. SCHUMACHER.* William .M I J J Chandler Lane Kuttman Estates 2. Roel'.e. U'.. (National Cylinder Gas Co.' SCHURECHT. H. G. (WF!) Champion Spark Plug Co. 3525 Butler Ave., Detroit 11, Mich. SCHURTZ, D. D. (GF) Sharp-Scburtx Co. 301-J03 Lincoln Ave. Lancaster, Ohio SCHWAB, Leon B. (R) 214 E. Home St., Vandaiia, Mo. (Harbison-Walker Refractories Co.) SCHWARTZ, Bernard (.BI) 35 Dogwood Dr. Downingtown, Pa. (International Resistance Co.) SCHWARTZ. Jerome W. (W) Sascha Brastorf Products, Ir.c. 11521 W. Olympic Blvd. Los Angeles 64, Calif. SCHWARTZ, M, A. (BI) WCRRL. Aeronautical Research Lab. WA.D.C. Wright-Patterson AFB, Ohio SCHWARTZWALDER, Karl (WFI) A C Spark Plug Div. General Motors Corp. Flint 2, Mich. SCHWEICKHARDT, William K. (R) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. SCHWEITZER. Howard V. (M) Schweitzer Equipment Co. 3764 Ridge Rd., Cleveland 9, Ohio SCHWENKLSR, Edward P. 979 Grove St., Elmira, N. Y. SCHWIETE, Hans-Emst Insticut fur Gesteinshuttenkur.de Mauerstrasse 5. Aachen. Germanv SCOTT. J. W. (W) 7650--Western Electric Co.. Tnc. Hawthorne Station. Chicago 23. Hi. SCOTT, Murray R. (GFI) Sausch L* Lerr.b Optical Co. 535 St. Paul St., Rochester 2, N. Y. SCOTT. Robert M. (RI) 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 3roening 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.. rlourtown. Pa. (Philco Corp.) SEANOR, 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 Roster 99 SE.ASn. Juhn 3. Box J 16-1. i.'icii'oon CoBcy.- iia. Ciemsun. 6. 'J. SEATON. Mix V. (.Brj Food Michir.ery 4 Chemical Corp. 161 E. iHr.d 5:.. New York 17. N. Y. SE3RING, George F. (V.*) Piper Makers !mpor::ng Co.. Ir.c. -4 S.i Second St., Elston, Pi. SECKMAN. Harry D (V/l) 220 W. Third. Pc:j. lad. TSquare D Co.) SECOR, Robert 3. (B) Filtrol Corp. J250 E. Washington 31vd. Vernon 2J, Calif. SECORD, Robert N. (W) Godfrey L. Cabot. Inc. Research 4 Development Dept. 23 Memorial Dr., Cambridge 42, Mass. SECR1ST. Duane R. 2486 Weston Ave., Niagara Falls. N. Y. SEDEN'KA. Anthony (E) 1086 Magnolia Dr., Washington. Pa. (B. F. Drakenfeld 4 Co., Inc.) SEELEY. Clarence E. (G) Glass Products Co. Box 926, Santa Barbara, Calif. SEELEY. E. L. (W) 800 Lotus Ave., Chester, W. Va. (Harker Pottery Co.) SEEMANN. Wilhelm Pipersgatan 2, Stockholm, Sweden SEETS, Dewaine 1110 W. Springfield. Urbana. 111. SEGELER. C. G. (M) American Gas Assn., 420 Lexington Ave. New York 17. N. Y. SEIDEL. Joseph (W) 211 Davey St.. Bloomfield. N. J. (Westinghouse Electric Corp.) SEIPEL. Robert 3. (G) Blue Ridge Glass Corp. Kingsport. Tenn. SEITZ, Wolfram (G) Glass Containers Inc. 2601 Santa Fe Ave. Los Angeles 58, Calif. SELLERS, George A. (R) 31S E. 'Crescent Ave., Elmhurst. III. (Plibrico Co.) SELLERS. John T. (RI) 52 3roadway, Jackson. Ohio (Durex, Refractories Co.) SELSING, 'Jorgen (3) 1216 Noble St., Barberton. Ohio (Ohio Brass Co.) SEMMELMAN, John O. (WI) Dentists' Supply Co. of New York 500 W. College Ave., York. Pa. SEMPLE. John Metal Porcelains Ltd., Cornwall Rd. Smethwick 40. Staffs, England SEMPLE. William A. (R) Aluminum Co. of Canada, Ltd. Gen. Tech. Dept.. 1700 Sun Life 3tdg. Montreal, Que., Canada SENK. Johann Vienna XVII Dombacherstr. 29, Austria (Radio Fabrik IngeienPorzellaa Fabrik) SENTERS. Walter (S) Washington Brick & Lime Co.. Box 2198 Spokane. Wash. SENTRY SANITARY CORP. (Marvin E. Abrams) Box 427 Mannington, W. Va. SEPHTON. ,H. J. (G) Dominion Glass Co. Ltd. Chappie St.. Hamilton. Ont.. Canada SERVICE PORCELAIN ENAMEL. INC (Paul S., Cecil) Brill .4 Christie Sts. Newark 5, N. J. SERVIS. Donald H. (W) Robertson Mfg. Co., Box 848 Trenton 5. N. J. Vol. 36, No. 10 (1957) hETCHEL. Havdcn Merritt (G) 105 Tenth S:., Streator, 111. (Owens-Illinois) SEVERIN'. Harold 1I0-D West Blvd.. Pittsburg', Caii:. SEVERSIKE. Carroll L. (W) 25 Race St., rrcnchtcwrt. N. J. Frer.chtown Porcelain Co.) SEWELL. Dave W. iSi Pomona Terra Cotta Co. Pomona. X. C. SEYBERT. Earl K. (R) Davison Chemical Co. Div. W. R. Grace & Co. 101 N. Charles St.. Baltimore 3. Md. SEYMOUR. Samuel L. (G) 25 Crystal Dr.. Oakmont, Pa. (Pittsburgh Plate Glass Co.) SHAFFER. E. F. (G) Ohio Power Co. 65 E. Main, Newark. Ohio SHAFFER. Paul C. (G) 85 Chapel St., Seneca Falla, N. Y. (Sylvania Electric Products. Inc.) SHAH. Chunilal P. Bombay Potteries Sc Tiles Ltd. Pipe Rd.. Kurla, Bombay 37, India SHALEK. Peter D. (W) 525 Lake St., Oak Park. III. SHAND. Erroi 3. (G) 155 Reynolds Ave., Coming, N. Y. (Corning Glass Works) SHAND. Rcdjer L. (E) 230 Woodaie Rd. Oakville. Ont., Canada (Ferro Enamels (Canada) Ltd.) SHaNDS. Everett H. (E) 1930 Harlem Blvd., Rockford. 111. (O. Hommei Co.) SHANER. Frank C.. Jr. (R) Richard C. Remmev Son Co. 1012 35th St.. N. W.. Canton 9. Ohio SHANER. Herbert J. (R) Ramtite Co.. 2563 W. 18th St. Chicago 3. 111. SHANKLE, Richard G. Box 283. Alfred, N. Y. SHANKS, Douglas Shanks 3c Co. Ltd., Victorian Pottery 3arrhead. Near Glasgow, Scotland SHANNON. Harry F. (E) United States Steel Corp. Applied Res. Lab., Monroeville, ?a. SHAPIRO, Howard (BI) 222 E. 56th St.. New York 22. X'. Y. ;$vlvania Corning Nuctcar Corp.) SHAPLAND. James T. (R) 2513 Collins Rd.. Pittsburgh 3*. Pa. (United States Steel Corp.) SHARDLOW, L. Russel (BI) Radio Corp. of America Somerviile. Xr. J. SHARP. Donald E. (GF) Libbey-0wens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SHARP. E. W. (RI) Pedro. Ohio (Lawrence Refractories Gay Co.) SHAVER. Richard C. (B) 2 Hamilton St.. Auburn, X. Y. (Cowles Chemical Co.) SHAVER. W. \V. (GF) 130 E. Fourth St.. Coming. N. Y. (Coming Glass Works) SHAW, Anthony E. (S) Xatco Corp., 327 Fifth Ave. Pittsburgh 22, Pa. SHAW. Charles T.. Jr. Box 1316, Georgia Tech. Sta. Atlanta. Ga. SHAW. Clarence F. (WI) R. R. 1, Trevor, Wise. (Pickard. Inc.) SHAW. L. I. (XI) 1616 Ocean Ave.. Apt. 16 Santa Monica. Calif. (Consultant) SHAW, Vfyril C. (MFI) 563 Gates St.. Philadelphia 23. Pa. (Asbestos Textile Institute) SHAW. Orveiia Bnx r>2T. Alfred. \\ V. SHAW, Roocr: K. 1101 Campus Pky . $caule 5. Wash SHAW, Ronald H. L. E. Shaw L:d.. Box 596 Halifax. Nova Scotia. Canada SHAW. Ronald R. 137 Ingiis St. Halifax. Nova Scotia. Canada SHAYNA, Michael iSj 506 S. Railway Swif; Current. Sask., Canada (Western Clay Products Ltd.) SHEARER. Walter L. (R) Bartley Crucible Sc Refractories, inc. 15 Muirhead Ave., 3ox 353 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 33, Saxonburg, Pa. (Du-Co Ceramics Co.) SHEETS. Herbert D. (RI) Battelle Memorial Institute 05 King Ave., Columbus 1, Ohio SHEHEEN, Alexander (X) Standard Oil Co. (Indiana; Engineering Res. Dept. 2400 New York Ave., Whiting. Ind. SHELDON. John L. (G) 179 Dodge Ave., Corning, N. Y. (Coming Glass Works) SHELDON. R. S. (E) 223 5 Wilson Ct.. St. Joseph, Mich. (Whirlpool Corp.) SHELL. Haskiel R. (B) U. S. Bureau of Mines Electrotechnical Experiment S:a. Norris. Term. SHELLEY. C. 3. (RI) General Refractories Co. 1520 Locust St.. Philadelphia 2, Pa. SHELTON. Phiio S.. Jr. (G) 130 Burr St.. Fairnelii, Conn. (Zell Products Corp.) SHENANDOAH SILICA CO.. INC. (Herreid u. Throop) 190 W. State St.. Trer.ron 3, N J. SHENANGO CHINA. INC (Geo. 3. Zahniser) New Castle. Pa. SHEPHERD. John F. (El) Shepherd Chemical Co. 2803 Highland Ave. Norwood, Cincinnati 12. Ohio SHERRILL. Ernest (M) Westwood Ceramic Supply Co. 610 Venice Blvd.. Venice. Calif. SHERRILL. Robert R. (El) 425 Canyon Dr.. Glendale 6. Caiit. (Bulwark Corp.) SHERWOOD. Robert F. fWFI) c/o Mr. W. Harold Reid. Alfred. X. Y. (Smith. Hinchman Sc Grylls Associates. Inc.) SHEVLIN, Thomas S. (RFf) Engineering Experiment Station Ohio State University Columbus 10, Ohio SHIFF, Tom (R) Villa Ridge Addition. R. R. 2 Godfrey, 111. (Laclede Christy Works. Retr. Div. H. K. Porter Co.) SHIMADA, Hachiro Shimada Glass Laboratory No. 2867. 1-Chome, Sanno Ota-Icu, Tokyo, Japan SHIMADA. Kuro Toyo Glass Co.. Ltd. No. 47 Shimo-3-Chome Fulcushimaku, Osaka, Japan SHIMER. J. 3. (GI) Knox Glass Co. Knox, Pa. Roster 101 SHIMMEN. Nornan C. l\V) 2243 Ventura Dr.. R. R. * Wailed Lake. Mich. (Champion Spark Plug Co.) SHIPS. Paui J. i R ) Moraine Prcd. Div . Ocnerai Mcrors Corp. 1420 Wisconsin Blvd.. Dayton 1, Ohio SHIPLEY1; Linden E. (W) 92 Cresiview Rd.. Columbus 2. Ohio i'Or:or. Ceramic Foundation) SHIPLEY. R; A. (S> Natco Corp., 327 Filth Ave. Pittsburgh 22. Pa. SHIPPY, Cordon D. (E) 2720 W. Chambers, Milwaukee. Wise. (A. O. Smith Corp.) SHIVELY, Robert R.. Jr. (C) 2416 (luif Bldg.. Houston 2. Texa> (Olin Mathiex>n Chemical Cir]>.) SHOEMAKER. Donald W. tR) Corharr Refractories Co.. Inc. lhOO W. I.ee St.. Louisville 10. K>\ SHOEMAKER, George W. (S) Arketex Ceramic Corp., 6 N. Walnut St. Brazil. Ind. SHQFFNER. James E.. Jr. (G) 11S Cherokee Rd.. N'ashviile 5. Tcr.n. I Ford Motor Co.) SHOFFTALL. N. F. (B) General Electric Co. Specialty Electronic Component-; Dept. ISM 1-eMoyne Ave.. Svracu.se 3, N. Y. SHOXE3ARGER. F. J. (G) General Electric Co. Glass Technology Lab. 1133 E. 152nd St.. Cleveland. Ohio SHONKWILER. Francis P. (RI) 251* Milford Dr.. Bethel Park, Pa. ( Harhjs*n-Waiker Refractories Co.) SHOOK. Thurston W. (M) 2569 McVey Blvd.. W. Worthington, Ohio (Harrop Ceramic Service Ca.) SHOOK. William B. (I) 4.14 Chatham Rd.. Columbus 14. Ohio SHOOT. Lyle E. (W) IF-* 2 Park Forest Ave. Stare College. Pa. ( Erie Technical Ceramics. Div. Erie Registor Cortt > S H O F K E R. Sterling D. : RI > 404 E. Summit. Mexico. Mo. (Mexico Refractories Co.) SHORTER, a. J. Bonnybricge Silica Fireclay Co. Ltd. Bcnnvbridge. Stirling, Scotland SHORTER, W. H. (G) Emhart Manufacturing Co. 333 Homestead Ave., Hartford 2, Conn. 5HREMP, Raymond M. (R) 227 S. Clay St.. Zeiienople, Pa. (Lava Crucible-Refractories Co.) 5HUKI.E. Archie A. (W) GI459 Schafer Dr.. Flint. Mich. (A C Spark Plug Div. General Motor* Corp.) iHULZE. Charles E. iBD R. R. 2. Box 125. Ashland. Ky. (Big Run Coal & Clay Co.) iHUMAN, Albert (G) Polarizing Instrument Co. Irvington-on-Hudson, New York. N. Y. ICKER. Richard (WJ) 1302 Taft Ave.. Lawton, Okla. (Crucible Steel Co. of America) IIDWELL. John L. (M) Box 67. East Palestine. Ohio (H. C. Spinks Clay Co.. Tnc.) IE3ER. Karl E. (G) Haven Hills. R. R. 1, Albion. Mich. (Corning Glass Works) IEBERT, Robert (S) Dennings Point Brick Works, Inc. Box 150, Beacon. N. Y. IEFERT, A. C. (GF) Owens-Coming Fiberglas Corp. Newark, Ohio OL. 36, No. 10 (19.57) SI EljR 1ST Paul i: i \V 1 1 : R1.y:r..it Rd. East Syravuxr. X Y. iGcnerat Electric C**.t <1 F.GWALD. C. R. ilVli 4420 San Caries Ave.. Tampa. ::!a. ( Elgce Pottery Co.i SIEKMANN. John F. tR) Aluminum Co of America 520 X. Michigan .'we., Chicago II, 111 SIEVERT. Guiiio E. iR) 333 Oregon Ave.. San Mateo. Calif. (Gladding, MeBcan 4 Co.) SIGWART, Harry J. tG) 732 Beechurst Ave. Morgantown, W. Va. (Seneca Glass Co.) SIKES, James \V. (\V) Florida Tile Industries, Inc., Box 451 608 Prospect St., Lakeiand, Fla. SILK. Karl Messrs. Jury Kolloware Ltd. Brierley Hill, Stans. England SILVERMAN. Alexander (GFI) University of Pittsburgh 2525 Cathedral of Learning Pittsburgh 13. Pa. SILVERMAN. William B. (GFI) Owens-iilinois, 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 SlMCOCK. J. H. 6 Lovatt Ave.. MiIehou.se Newcastle. Stafford. England SI/ 'ISON. A. L. (GI) Owens-Coming Fiberglas Corp. Toledo. Ohio SIMMEN. Fred G- <W) 964 Terrace Blvd., Trertton 3, N. J. (Fairfacts Co.) SiMMINGiKCLD. Bo Glasinsticutet i Vaxjo, Smedjegatan 3 Vaxjo, Sweden SIMMONS. E. E.. Jr. (M) 455 S. Oakland Ave., Pasadena 5, Calif. (Consultant; SIMMONS. George A.. Jr. (C) Pittsburgh Plate Glass Co. Res. Laos., Creighton. Pa. SIMMONS, Milton L. (Z) Ferro Corp.. International Div. 4150 E. 55th St., Geveiand 5. Ohio SIMON. A. G. f\V) 8530 Wentworth St.. Suniand. Calif. (Gladding, McBean & Co.) SIMONDS WORDEN WHITE CO. ( F. R. Henry) 1101 N'egley PL Dayton 7. Ohio SIMONS. T. Mitchell. Jr. <WI) 9186 E. Jayiee Dr. Temple City, Calif. (B. F. Wagner 4 Co.) SIMONSEN. Eduardo C. Companhia Paulista de Mineracao Caixa Postal 3003, Sao Paulo. Brazil SIMONSEN. Victor G. Ceramica Sao Caetano S. A. Caixa Postal 273. Sao Paulo, Srazd SIMONSON. Robert 3. < B) Harvey Aluminum Co. 190th 8c Western. Torrance, Calif. SIMPSON. Alexander J. (W) Westinghou.se Electric Corp. Ceramics Section 7325 Penn Ave.. Pittsburgh 8, Pa. SIMPSON. Frederick H. (EJ) 1521 W. 51st., Seattle 7, Wash. (Boeing Airplane Co.) SIMPSON. Haroid E. (GFI) State University of New York College of Ceramics, Alfred, N. Y. SIMPSON. John A. (S) F. B. McFarren Ltd. Streetsvtlle, Ont., Canada SIM PSON. John D.. Jr. S > Starcsviile Bf.ek Co. Box Ji Statesville. N. C SINCERE. John <'*.. Jr. < E : M* N Pine M:. Fr.-pcc: III. (industrial I'tihitcatii'Mv !i:c SINCLAIR. Robert R. (RI; 510 S. 0age Ave.. Ingie-.veed. Calif. {.Missouri Refractories Co > SINGER. Felix ( F) Keramob Hcu>e. -4. C-st!emiir.e Ave. South Croydon, Surrey, England {Consnitar.t) SI Ni.l.ifTON, Eric Oughtihriiige Silica I'iiein'.ck C. Stcetley. Unr>.i|i, England SIROVY. George (E) Century Virrcotia Enamel Co. 6641 S. Narragansett Ave. Chicago 3S. III. SISKA. Albert H. (El) 322 E!Ii> St.. Ashland. Ohio (Ferro Corp.) SISSONS. Gordon H. (S) 320 First Sc. Medicine Hat. Alta.. Canada (Medicine Hat Brick St Tile Co.. Ltd.) SITTI(Jjzlar*hall (Cl American Lithium Institute. Ir.c. 32 Xa>au St.. Princeton. X. J. SIXT. Lawrence F. (W) Box 443. Fast Liverpool. Ohio (New Ci.stle Refractories Co.) SJOGREN. John K. (R) Prospect Sc.. Princeton, Mass. (Norton Co.) SKELLY. John C. ( W) Trenton Potteries Co. 31 I X. Clinton Ave.. Trenton. N. J. SXEOCH. Thomas A. 603 Second St.. Golden. Colo. SXEOCH. Walter K. (M) Southern California Minerals 320 S. Mission R L Los Angeles 33. Calif. Co. SKINNER. Kenneth G. (WIi 4223 First Sc.. S. E-, Apt. 203 Chesapeake Gardens Washington 20. D. C. (Navai Research Laboratory) SKINNER. Ro?er D. : G * iO Lisle Lane. Winchester. Ky. (Dominion Minerals Div. River* :n Lime 4 Store Co.) SKOGEN. Haven S. (G) 2524 N. Dora. Franklin Park. III. (E. 1. du Pont de Nemours Co.) 5KURCEX5KI. Anton (G) H. I. Thompson Fiber Glass Co. 1733 Cordova St.. Los Angeles 7. Calif. SKWARLO. Edward (G) 706 S. loka. Mount Prospect. 111. (Vacuum Ceramics. Inc.) SLAUGHTER. James A. (G) Pittsburgh Plate Giass Co., 3ox 15 Crystal City. Mo. SLAUGHTER. John I. (B) Corning Glass Works Res. Sc Development Div. Coming, N. Y. SLAYTER, Games (GF) Owens-Coming Fiberglas Corp. Case Ave., Newark, Ohio SLICK, . 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. Laasdale, Pa. SMALL, Carlton F.. Jr. (R) 9 Hawthorne Rd., Cinnamon Hill Bridgeport, Pa. (E. J. Lavino & Co.) Roster- 103 SMALLLY. liounrd r. ( Ei i L'ctiujo 'Torp.. Research Div. 255-1 Grccprrrcunt Avc. Baltimore IS. Mil. SMELT. T. A. M. Bibiiothcekccnrrale N. V. Philips' Gioeilampeniabrickcn Eindhoven. Holland SMILEY. William D. (B) Stanford Research Institute Menlo Park. Calif. SMITH. Adrian F. (Gi 50 E. Third St.. Corning. N. Y. (Corning Gloss Works > ;.M ITH. Alden J. (Vv . R. R. 1. Carey, Ohio ( Porcelain Products Inc.) IMITH. A. O.. CORP. (W. A. Deringeri 3533 N. 27th St.. Milwaukee 1. Wise. Ill ITH. Arnold N. Pilkinyton's Tiles Ltd. Oilton Junction. Manchester. England IMITH. C. A. (RFI) Mexico Refractories Co. Better Refractories Bldg., Mexico, Mo. MITH. Dudley C. (G, Oakdale Dr.. Millville. N. j. (Kimble Glass Div., Owens-Illinois, MITH. Ear! 'R. ( R) Marquarbt Aircraft Co. 16555 Saticoy St., Van Nuys, Calif. MITH. Gail (G) Coming Cilass Works Eugene C. Sullivan Labs. Corning. N. Y. MITH. G. Sherwood Department of Ceramic Technology Pennsylvania State University University park. Pa. MITH. Harlan D. (R) Wellsville Fire Brick Co. Wellsville. Mo. .1 ITH. Harry W. <\V) 5608 Gleason Dr.. Chattanooga. Tenn. t D. M. iieuard Mig. Co.) .1 ITH. Hillard A. (\VI) 23 Buchanan Rd.. Mctuchen. N. J. (Rheem Manufacturing Co.) I ITH. Howard J. (W) 51 Godwin ,Ave.. East Paterson. N. J. (Titanium Alloy Mfg. Div. National Lead Co.) 1 ITH. H. Russell (M) Box 757, East Liverpool, Ohio fCroxail Chemica: & Supply Co.) IITH. James United Fireclay Products, Ltd. |u0 W. George St. Glasgow C. 2., Scotland IITH. James N.. Jr. (D) "Arborlaen ", R. R. I, New Bem. N. C. (Arborlaen Gardenware) IITH, J. Ernest (X) 233 .Riveria Ave...Sarasota. Fla. CCeram-I-Cast Corp.) ITH. John Jacob (GI 14Q4 Pacific Ave.. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) ITH. J. Ryan (W) Fairfacts Co.. Fairfacts St. Trenton 8. N. J. ITH. J. Talbot (M) 217 Elm Ave.. Morrisville. Pa. (United Clay Mines Corp.) ITH. Karl W. (R) Charles Taylor Sons Co. Box 58 Annex Sta. Cincinnati 14, Ohio ITH, Kenneth E. (DFI) American Art Clay Co. 4717 W. 16th St. Indianapolis 44. Ind. TH. Kenneth M. <R) United. States Dept, of Interior Bureau of Mines. College Park. Md. TH. Leland (SI) Box 294. Darlington, Beaver Co.. Pa. (Central Commercial Co.) .. 36. No. 10 (1957) SMITH. L*iran F. *\V) O. Hummel Co. E- Wth Sr.. L.i$ Angeles, Cain SMITH. Peter \V. i W) 73n Flnrales Dr.. ?aio Alto. Calif. 'Thermo Materials. Inc.) SMITH. Richard D. (I) Ferro Corp . Far East Div. 130 Nathan Rd.. 30: Princess 3l*lg, Kowloon, Hong Kong SMITH, Richard M. (Ri 215 Seneca St.. Corr.ing. N. V. (Coming GIam Works) SMITH. R. K. I RF) 149 Reynolds Ave.. Corning, N. V. (Corning Glass Works) SMITH. Ronald J. Box 347. Alfred, N. Y. SMITH. Rowland D. (Gi 12 Woodlawn Ave., Coming, N. Y. (Coming Glass Works) SMITH. R. Thomas 1108 Main St.. Holla. Mo. SMITH. Sidney L. 16 Mun.on St.. Le Roy, N. Y. SMITH A STONE, LTD. (T. Wold) Georgetown. On?.. Canada SMITH. William E. (C) 5030 Janet. SyWania. Ohio (Owens-Illinois) 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 de Chile S. A. Santiago. Chile SMOAK. J. Fletcher, Jr. Box 2541, College Sta., Clemson. S. C. SMOCK. Alden W. <G) 413 Green Acres Dr.. Huntsville. Ala. lArmy Ballistic Missile Agency) SMOKE. Edward J. <W) 11 Ediewood Rd.. Mernrhen. N. J. (Rutgers. The State University School of Ceramics) SMOOT. Jack M. (DI) Chamblee. Ga. (Dogwood Ceramics) SMOTHERS. W. J. (B) Ohio Brass Co.. Barberrca, Ohio 5MYLY. James P. (31) Box 4123, Chattanooga. Tenn. (American Lava Corp.) SMYTH. Harold T. (G) Rutgers. The State University School of Ceramics New Brunswick. N. J. SNELL. Richard G. (G) .1717 Calumet Ave., Toledo 7. Ohio (Libbey-Owens-Ford Glass Co.) SNIDER. Carl A.. Jr. (G) 4820 Girard Rd.. Pittsburgh 27, Pa. (Kaiser Aluminum & Chemical Sales. Inc.) SNIDER. Stuart M. (S) 325 Club Dr.. Salisbury, N. C. (Taylor Clay Products Co.) SNOW. L. James (S) Mifflinvdle. Pa. (Alliance Clay Product Co.) SNOW. Roland B. (RF) United States Steel Corp. Applied Res. Lab., Monroeville, Pa. SNYDER. Ernest B. (RI) Wheeling Steel Corp. Steubenville South Plant Steubenville. Ohio SOBON. Leon E. General Abrasive Co. 2000 College Ave., Niagara Falls. N. Y. SOCIETA ITALIANA REFRATTARI MARGHERA A2IONARIA (Domenico Giacomeili) Via Industrie 52. Casella Postale 303 Marghera. Venice, Italy SOCIETE FRANCAJSE DE CERAMIQUE f Pol I'jipu: i Service de Documentation 33 me -le \ rr.r.stad: Paris XV. France SOCIETE PROF ESS ION NELL E DES PRODUITS FRANCAIS DE TERRE CUITE <'M. Jacques Lauansa:) 23, rue de Cronstad: Paris XV. France SOCIETY OF GLASS TECHNOLOGY (R. W. Douglas; "Thornton" Hailam Gate Rd.. Snemeld 10. England SOCONY MOBIL OIL CO. (W. B. Stevens) 150 E. 42r.d 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 2?0I W. Bancroft. Toledo. Ohio SOLOMON, Earl (RI) 1657 Boston Ridge Rd. Orchard Fork. N. Y. (Electro Refractories & Abrasives Corp.) SOLVAY PROCESS DIV.. ALLIED CHEMICAL A DYE CORP. Librarian, Box 271, Syracuse 1, N. Y. SOMANY, O. M. Hindusthan National Glass Mfg. Co., Ltd. 2. Wellesley PI.. Calcutta I, India SOMIYA. Shigeyuki (B) Pennsylvania State University Dept, of Geochemistry Universitv Park. Pa. SOMMER. Alfred (W) 45 Tohn St.. Highland Park. N. (Ferroxcuoe Corp. of America) SOMMERS. Robert H. (\V) Hevi-Duty Electric Co. 2040 W. Wisconsin Ave. Milwaukee I. Wise. SOMMERVILLE. J. L. (CD 3J8 Wood St.. Clarion, pa. (Owens-Illinois SONDLEi. Merrill C. (W) 33 Fifth Ave.. Sistersville. W. Va. (Padcn City Pottery Co./ SONTZ. Arthur (RI) 3054 S. Crandon Ave., Chicago 17. 111. (United States Steel Corp.) SOSMAN. Robert 3. (Honorary*. 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. Kihler) Box 279 Erwin, Tenn. SOWERS. Robert M. (G) 3 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.) SPANOUD1S. Louis (G) Kimble Glass Co. 1700 N. Westwood Ave.. Toledo. Ohio SPARKS. Edgar W. (W) 406 Unaka Way, Erwin, Tenn. Roster 105 SPARROW. Paul F. (R) 244/ Oiil Washington Rii. Bridgeville. ?a. (Norton .Co.) 5PE1L, Sidney (Cl) Johr.s-Mar.vtlle Research Center Manville, N. J. 5PENCE. C. F. (') 1005 Hartford St., Worthington, Ohio Chicago Vitreous Corp.) 'PENCK. Ifar.il.l l. ( \V) 4J* W. M.i> St. .S.in:n Barbara. Calif. SPENCER. Charles D. (Gr) 2113 Taylor Rd., Cleveland 12, Ohio (Lam? Dept.. General Electric Co.) SPENCER-STRONG, G. H. (EFl) 109 Witherspoon Rd., Baltimore 12, Md. (Pemco Corp.) SPENGLZR. H. H. (G) General Electric Co. Lamp Div., Glass Technology Lab. 1133 E. 152r*.d St., Cleveland 10, Ohio IPKRRIXC. Richard F. 111 -.\ X.-Ninth Sc.. Festus. Mu. SPINKS. H. C,, CLAY CO.. INC. (R. B. Carothers; Box 329 Paris, Tenn. SPINNER. Sam (G) National Bureau of Standards Washington, D. C. ;PIRES. Stephen T. (RI) North American Refractories Co. Mt. Union, Pa. PIRKO. Edward J. Box 827. Alfred. N. Y. PLANN, Mary Theresa (G) Corning Glass Works, Corning, N. Y. POERRY. Henry J. Schmidheiny St Co., Ltd. Heerbruggi (St.G.) Switzerland PORE. William D. ( W) Miilway Lane. East Liverpool. Ohio i Humer Laughlin China Co.) PRIGGS. Richard M. 408 W. Nevada St.. Urbana, III. 'PROAT. Ira E. (WFI) R. T. Vanderbilt Co., 230 Park Ave. New York 17, N. Y. PROUL. James D.. Jr. Delevan. N. Y. PURCK. Richard F. (W) Manford La., Wilton. Conn. (Machlett Laboratories) PYUT. Albert 3. (Q) Raytheon Manufacturing Co. 55 Chaoel Newton. Mass. QUARE D C,0. (Ralph E. Hanna) Molded Insulation Div., Peru, Ind. QUIER, Arthur A. (S) 1616 Walnut St., Philadelphia 3, Pa. (Distributor) DUIER. Charles A. (C.) Owens-Illinois 1700 X. West wood `Ave. Tuledo 7. Ohio It'OCfA. Valerio ImliiMrias Wilde S.R.I.. San Martin 683 Buenos Aires. Argentina TAATLICHE PORZELLANMANUFAKTUR BERLIN (Gerhard Muller) Hartmannstrasse 1-3 (I3a) Selb/Oberfr. U. S. Zone, Germany WATS. Henry-; N. fE) Anaico Services Co. 6306 N. Cicero Ave., Chicago 30. III. WDDEX. Thomas B. (\VJ) Metal St Thermit Corp. Carteret. N. J. TADLER. Leo E. (G) 1057 Plymouth St-, Windsor, Conn. (Hartford-Empire Co.. Div. Emhart Mfg. Co.) JAFFICXER, Charles F. (G) 506 Grandview Ave., Vineland, N. J. (Kimble Glass Co.) >L. :{(>, No. 10 (10:17) STAFFORD. Ray (M> Souther" Calif. Minerals Ca J20 3. Mission Rd. Los Angeles J J. Caiit. STAFFORD. W. L. (Rrl) Johns-Manville Research Center Box 1:9. Manviiie, N J. STAHMANN, John A. t 3) 4275 \ erdugo Rd. Los Angeles 65. Calif. (Gladding. McBean & Co.) 5TALEGO. Cnarles J. (G) 227 N. Fifth St-. Newark, Ohio (Owens-Corning Fiherglas Corp.) STALTKR. Thomas L. t F.l) 2'.M2 Northern I'ky.. Baltimore 14. Mil. I'emcn ) STAMPS. Murray R. (W) Canadian Porcelain Co. Ltd. Box 423. Hamilton. Ont.. Canada STANDARD BRICK & TILE CORP. (Clifford A. Klcymeyer) 123 N. W. Fourth 5t. Evansville 8. Ind. STANDARD ULTRAMARINE St COLOR CO. (L. F. May) Huntington 13, W. Va. STANGL, J. M. (W) Stang) Pntrerv. Trenton 4, N. J. STANGL POTTERY (J. M. Srangh Trenton 4. N. J. STANISLAW. T. Stanley (W) Box 354. Centerport, L. I.. N. Y. (Svlvnnta Elrctric Products. Inc. I 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 33, Mich. STANXARD. Wilford T. (D) J. A. Debouch Co., 608 Harrison St. Oak Park. III. STANSFIELD. James R. D. (?) Strearor 3rick Co. Div. Hydraulic-Press Brick Co. Streator. 111. STANTON. Francis. rr. Box 827. Alfred. N\ Y. 3TANWORTH. John Edwin 74 Ashlawn Rd. Rugby. Warwick. England (British Thomson-Houston Co.. Ltd.) STAPLETON. Rober:_E. (W) 22 Chestnut St., rranklinville, N. Y. (Hi-O Div., Aernvnx Corp.) STAPP. John A.. Tr. (G) Union Carbide Corp.. Silicones Div. Box 44. Tonawanda. N. Y. STAR PORCELAIN CO. (Daniel W. LukiO Muirhead Ave.. Trenton 9. N. J. STARK CERAMICS. INC. (J. H. Stewart) Box 230 Canton 1. Ohio STARK. G. E. Carlos fW) Gladding. McBean St Co. 2901 Los Feliz Blvd. Los Angeles 39. Calif. STARK. \V. F. (E) Promat Division. Poor 3c Co. 351 S. Market Sc.. Waukegan, 111. STARKEY. Daryle D. (M) R. R. L Willard, Ohio (Starker Machinery. Tnc.) STARKEY. Edward A. (M) 1068 WoodhiU Rd.. Mansfield, Ohio (Starker Machinerv. Tuc.) STARKEY. Elmer A. (R) 22397 Fairlawn Circle. Apt. IQ Fairview Park 26. Ohio (North American Refractories Co.) STATHIS. Andrew W. (RI) 5917 Cary. Cincinnati 24. Ohio (Charles Tavlor Sons Co.) STAUDT. August (W) 264 Water St., Perth Amboy, N. J. STAUFFER CHEMICAL CO (M. ?. Kcrir.s, Jr.) 230 Madison Ave.. New York. N. Y. " * '!- i' T* ;-I K. 3. 1 \Vi \ Water St , rrii\e. V:i. t C -u:tnr-*::.11 Ceramic Cum i S7-'-v:4i ii. \x;s. ,\. * m 3.1 June l)r.. 1:r - In: r gl; 36. l*;i _ `Crucible >:ee: C-'. i ::i er: c.: S: Earns. W:i:iam E. ; A. O. ir/.-.'.h Corp. 35j X. 27:h Sc.. Milwaukee. Wise. *TI-CX. A!irt-.i 3. . H) 35 l.uicidn St.. Melm-e 76. M.':>* _ (Metallurgical A.-'i'Cinte-N. |nc. SlECK, C. O. (G) F. J. Kress Box Co.. One 23th St. Pittsburgh 22, Pa. sTEELE. A. Preston, Jr. (Si J. C. Steele St Sons. Inc. Box 951. Statesville. N. C. iTEELE. C. N. (S) J- C. Steele & Sons. Inc. -~-x 951, Statesville, N. C.. SL^.c.LEr F. Montgomery (S> J- C. Steele St Sons. Inc. _Bx `>51. State.-viile. N. C. ST^^LE, G. Allen (R) 10! MacGregor Dr.. Trof.vood. Ohio (Simonas Worden White Co.) STEELE, Harry L. Shoner & Son Ltd., Copeland St. ^^Stoke-on-Trent, England S * c.r.LE. Howard E. (G) Westinghouse Electric Corp. Houit Rd., Fairmont. W. Va. STEELE. Hoyt P. (E) Ben jamin Electric Mfg. Co. Des Plaines, 111. STEELE, J. C.. Jr. (Sr) J- C. Steeie i Sons, Inc. Statesville, N. C. STEELE. J. C.. 4 SONS. INC. ____ (J. C. Steeie. Jr.i Statesvd'.e. N C. ili"LE. Richard E. (M) Ram, Inc., 1064 W. Fifth Ave. _ Columbus 3. Ohio SiEELE, William Perrin (S) Pitte Hall Brick 4 Pipe Co. Winston-Salem. N. C. STEFL. Donald T. (RI rreeport Brick Co. Box 402, Freeport, Pa. STEIL. Roy C. (G) 1450 Garfield St.. Denver 5. Coio. _ (Woodbury Chemical Co.) S.EIMKE. Frank C. <RI) Walsh Refractories Corp. 101 M. Fetrv St.. St. Louis. M.. STEIN*. Colin H. John G. Stein 4 Co. Ltd. ^Bonnybridqe. Scotland STilN. Ronald C. Messrs. John G. Stein 4 Co., Ltd. _^Bonnybrid?e. Scotland SL-UN, Sidney J. (B) International Resistance Co. _ J0l N. Broad St., Philadelphia 3, Pa. SiEINBOCX. E. A. (R) Wbip-Mix Corp., 411 W. Avery St. Louisville 3. Ky. STEINER. Harry C. (G) General Electric Co. Power Tube Dept. Schenectady 5, N. Y. STEINHOFF. Fred L. (Sri) Brick or Clay Record--Ceramic Industry i S. Wabash, Chicago 3, 111. STEINROEDER. Fritz Diflier-Werke A. G.. Lessingstr. Ifi Wiesbaden, Germany STELLE. John A. (S) Arketex Ceramic Corp.. Braail, Ind. STENQVIST. Donald R. (B) 11 OS Gillmore. Apr. 6 Richland. Wash. (General Electric Co.) STEPHEN'S. Richard A. (R) General Refractories Co. 1520 Locust St., Philadelphia 2. Pa. Roster 10' STK i'H 30 . '.Viiliam B. i8> ljcr.cn: Electric Co. Bid*. ACT. Cincinnati 15, Ohio STERLING CHINA CO. (Wiiiiam T. Pomeroy; East Liverpool. Ohio STERLING GRINDING WHEEL CO. (W. R. Morjan; Box SOI, Tiffin, Ohio STERLING. Harry S. (G? Corn:.".? Glass Works Harrocsbur?. Ky jTESRV. J. Patrick < RJ) ai'.O .Vooebaa Ave.. Seattle 5, Wash ( Seeing .Airplane Co.) J7ERRY. '.V. Michaei (E) 5124 Fiith N. E.. Seattle 5, Wash. (Boeing Airplane Co.) iTETSON. Harold W. (B) R. R. 2. Painted Post, N. Y. (Coming Glass Works) STETSON. William C. (WI) Box 44, Saxonburj, Pa. (Saxonburg Ceramics) iTETTINIL'S. X. E. (W) Lapp Insulator Co.. Inc.. Le Roy, N. Y. TETTNER. Donald H. (GI) 976 Center Ave.. Lancaster, Pa. (Radio Corp. of America) TEUBENVILLE POTTERY CO. (W. Mould) 3ox 1020 Steubenville. Ohio TEUERNAGLE. /. H. (G) Brockway Glass Co., Inc. Wood St.. 3rockway. Pa. TEVENS. E. G. (X) 1750 Sycamore. Apt. C El Segundo, Calif. (North American Aviation, Inc.) TEVENS. Prank J. (Wl) 414 Prospect St., Nutley 10. N. J. (Isolantite Mfg. Corp.) TEVENS. Joe (R) Murray Refractories Co., Box 238 Murray. Utah TEVHNS. L. M. (R) 2907 Alabama St.. La Crescenu, Calif. (Gladding, Mc3ean & Co.) TEVENS. Robert P. (RI) Chicago Eire 3rick Co. 1625 W. loath ?!.. Chicago 43, III. TEVENS, W. 3. (W) Socony Mobil Gil Co. 150 E. 42r.d St.. New York 17. N. v. TEVENSON. James K., Jr. (RI) R. R. 2. Mundelein, ill. (Norton Co.) TEVENSON. Samuel (W) 1967 Grafton Rd.. Elyria, Ohio (Harshaw Chemical Co.) 'EVENTON. Kenneth John Steventon & Sons Ltd. Gedford Works Middlewick. Cheshire. England EWART. Isaac (G) 21 Porter Rd.. West Orange, N. J. (Consultant) EWART. James I'M) National Engineering Co. Simpson Mix-Muiler Div. 549 W. Washington 31vd. Chicago 6. 111. EWART. J. H. (SI Stark Ceramics. Inc.. Box 230 Canton 1. Ohio EWART. John A. (GI) 419 Loetisr Ave.. Washington. Pa. (B. F. Dnlcmfeld i Co.. Inc.) EWART. Malmlm (Ml Cntnitiemal Minerals Co. 310 Irwin St.. San Francisco 7. Calif. SWART. Wilfred H. (R) 15 E. Elizabeth Sc.. Schererville, (nd. (Sunbeam Corp.) EF. W. C. C.V) 158 S. Wilson Btvd. Mt. Getnens. Mich. (Mt. Cemens Pottery Co.) LL. Henry ?.. Jr. (R) 31 Stnnr'rign Ril.. Worcester 6, Mass. (Norton Co.) .. 36, No. 10 (1967) STILLWATER CLAY PRODUCTS CO. (J. P. Dully) Lock Drawer 32 L*brichsvii!e, Ohio STILSON. Charles E. tB) Box U. Cedar Lake. Mich. (Generoi Electric Cjj STOCK. Donald F. (R) 28? Maxweit Dr., Pittsburgh 36. Pa. (Harbison-Waiker Refractories Co.) STOCXDALE. George ?. (G) 49 Coming 3tvd., Corning, N. Y. (Coming Glass Works) STOCXSLAGER, Theodore F. (W) Carborundum Co. 24800 Lakeland Blvd. Cleveland 32, Ohio STODDARD. Stephen D. (RI) 1526-B 4Jrd St.. Los Alamos. N. M. (Los Alamos Scientific Lab.) STOEN, Roger C. (SI) Cannelton Sewer Pipe Co. Cannelton, Ind. STOHL. Alfred A. (W) 374 North St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) STOHL. L. A. (W) Wisconsin Porcelain Co. 120 Lincoln St.. Sun Prairie, Wise. STOIA. John Z. (WJI) 314 W. Witherbee. Flint, Mich. (A C Spark Plug Div. General Motors Corp.) STOLLER, Arthur I. (WJ) Radio Corp. of America Princeton. X. J. STOLTE. Norman H. (El) 3974 Orchard Rd. Cleveland Heights 21, Ohio (Harshaw Chemical Co.) STONE, Alan (R) 77 Houghton Circle. Corning, N. Y. (Corning Glass Works) STONE, Benjamin (W) California Crafts 42340 N. Gratiot, Mt. Gemer.s, Mien. STONE, Conrad A. (G) 93 S. Remington Rd. Bexley, Columbus 9, Ohio (Federal Glass Co.) STONE, C. P. Ferramic Industries, Ltd. 25 Hydeway. Welwyn Garden City Herts, England STONE. F. R. (R) Canada Firebrick Co., Ltd. 4741 St. Ambroise St. Montreal. Que.. Canada STONE. Robert J. (M) John W. Higman Co. 24 State St.. New York 4, N. Y. STONE. Robert L. (BFT) Dept, of Ceramic Engineering Universitv of Texas, Austin 12, Texas STONE, S. A. (M) Deisfer Concentrator Co. 901 Glasgow Ave., Fort Wayne, Ind, STONG. Guy E. (G) 926 W. Water St.. Elmira, N. Y. (Corning Glass Works) STOOKEY. Stanley D. (GF) 145 Pritchard Ave.. Coming, N. Y. (Corning Glass Works) STOOPS. Robert F. (BI) Metallurgical Products Dept, General Electric Co.. Box 237 Roosevelt Park P. O. Detroit 32. Mich. STOBF.R-FOM\ John P. (RJI) I Renlamond Ave., Apt. E. Toronto 13. 0t.. Canada (Refractories Engineering St Snolies. Ltd.) STOTT. A. F.. Kdwarrf Johns St Co.. Ltd. Armitage Sanitary Pottery Nr. Rugelev. Stafford. England STOTT. rosenh A. (R) North American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14. Ohio S7GY7. J: hr. R. ( W) 70r E Franklin. Macomb. 111. ' Edison Porcciain Div. McGraw Edison Co.j 5 T C U 7. J o a e p h V. y E j \ )1 S. :Mur;h Ave. Highland Park. N. J. Meta; i: Thermit Carp.) STOL'T. Lester L. (.S) Ohio State University Research Foundation Columbus 10, Ohio STOVER. Edward R. (B) General Electric Co. Research Lab. 24" MB Box 1083, Schenectady 3, N. Y. ST. PIERRE. Philippe D. S. (B) General Electric Co., Research Lab. Metallurgy St Ceramics Div. Box 1088. Schenectady, N. Y. STRADLEY, J. Grant (I) 19:0 Korbel Ave., Lot 93 Columbus 11. Ohio STRADLEY, Norman (El) Minnesota Mining St 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 S50, 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. Stansneld) Streator, III. STRIMPLE. J. H. (B) National Lead Co.. Titanium Div. Box 58. South Amboy, N. J. STRING FELLOW. Al'en E. (W) 544 Woodland Ave., Haddonfieid. N. J. (I-T-E Circuit Breaker Co.) STROBACH. Carl G. (E) Rheem Mfg. Co. 7600 S. Kedzie Ave., Chicago. III. STROD. Arvid J. (MI) Industrial Metals Improvement Co. The Park Bldg.. Pittsburgh 22. ?a. S7ROH. Donald G. (WJ) 303 N. Whitney St.. Carroll. Iowa i'L'niversa;-Rundie Corp.) STRONG, Kenneth B. (W) 4624 Belmont Park Terrace Nashville 12. Tenn. (Titanium Alloy Mfg. Div., National Lead Co.) STROTT. Arioif J. (R) 597 Crooks Ave., Clifton. N. J. (National 3eryllia 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. S7ROUPE. Howard E.. Jr. (WI) 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. HI. 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 St Development) Roster 109 STUNTZ. Robert P. (R) 3abcock k Wilcox Co. 10S S. LaSalle. Chicago 3. III. STUPAKOFF DIV. CARBORUNDUM CO. (Ruber: A Barrj. LatruNe. Pa. STURM. Wiiliam F. Box n.ll'. Alfred. Y. S7YER. Charles A. (R) 11 Roxbury Rd.. Forest Hills Pittsburgh 21. Pa. (Vesuvius Crucible Co.) 4UBBARAO. Fiowarnpit C. 'MJM-A Stcvcndaic Dr. Pittsburgh 21. Pa. SUBRAHMANYAM, Sanga V. (G) I-H Arlene Village, Millville. N. J. (T. C. Wheaton Glass Co.) 5UBRAMANIAN, D. R. Burn & Co. Ltd. Refractory Sc Ceramic Group 12 Mission Row, Calcutta 1. India SUCH CLAY CO. (M. M. McHose. Jr.) Box *?, Perth Amboy, N. J. SULENS. Henry A. (M) Ceramic Supply Co.. Div. Ferro Corp. Box 1SI, Crooksville, Ohio SULLIVAN, Eugene C. <GF) Corning Class Works, Coming, N. Y. SULLIVAN. James D. (E) 4272 N. 24th PL. Milwaukee Wi>e. (A. O- Smith Corp.) iULLIVAN. John D. (BFI) Battelle Memorial Institute 505 King Ave.. Columbus I* Ohio SULLIVAN. Joseph C. (G) 28 Fulton St.. Corning. N. Y. (Corning Glass Works) IULLIVAN. Paul A. (GI) 624 Adeline Dr.. Webster, N. Y. (Bausch k Lomb Optical Co.) UMMERS. E. W. (G) Owens-Illinois. Technical Center 1700 N. Westwood Ave. Toledo 7. Oh;o UMRELL. Ferrall N. (E) 707 Henry 5c.. Uniondale. L. I., N. Y. (Hardwick. Hindle. Inc.) ;UN. K. H. (Gr) 2131 Lindsay Rd.. Pittsburgh 35, Pa. (Westinghocse Electric Corp.) UPAR Ceramic Institute Bnndunc. L'i\a. Iiuinnoin UR ENAMEL & STAMPING WORKS. LTD. (M. M. Sur) 24 Middle Rd.. Entally Calcutta 14, India UR. M. M. Sur Enamel 5c Stamping Works. Ltd. 24 Middle Rd.. Entally Calcutta 14. India URFACE COMBUSTION CORP. (Harvey C. Weller) .2375 Dorr St. Toledo I. Ohio URFLEET. Harold Kaylene Laboratories. Waterloo Rd. London. N. W. 2. England (Kaylene (Chemicals) Ltd.) UTHERLAND. Clark (S) Robinson Clay Product Co. 65 W. Stare St.. .Akron 9. Ohio UTHERLAND. Frank R. (RI) 511 Rainbow Dr.. Kokomo. Ind. (Haynes Stellite Co.) UTPHEN. F. G. (X) 2605 Central Ave.. Middletown, Ohio UTTON. Paul M. (G) Coming Glass Works. Coming, N. Y. UTTON. Willard H. (B) General Electric Co.. Rm. 3872. MOSD 3198 Chestnut St.. Philadelphia 4, Pa. UTTON. W. J. (RI) 24 High St., Alfred. N. Y. (State University of New York, College of Ceramics) /EC. J. J. (WFT) Ceramic Industry 5 S. Wabash Ave.. Chicago 3, III. OL. 3(5, No. 10 (1937) SVIKIS. Vniiierr.ars L). ( S i Dep:. ji Mines & Tech. Surveys Industrial Minerals Div.Ceramic Sect. 40 Lviiia S:.. Ottawa. Out,. Canada SWAIN. Arthur B c'.i Owens-1 llinois 1700 X. Westwood Ave. Toledo Ohio SWAIN, Richard 5. m'i.i) 509 Kibier Ave.. Newark. Ohio (()w en>-C'rn mg Fiberglas Corp.) SWALM. Phaon H. (W) Box 178. Kingston. Ont.. Canada (Frontenac Floor k Wall Tile Co.. Ltd.) SWANSON, Carl H. 770 Techwcod Dr.. N. W.. Atlanta. Ca SWANSON. Leroy M. (RJ) 15 Carolina St.. Jamestown. N. Y. \ Norton Co.> SWANSON. Warner D. (S) Metropolitan Brick, Inc. Bessemer. Pa. SWEARINGEN. Jack C. (G) United Can Sc Glass Co. Box 90. Hayward. Calif. SWEITZER. Mark (W) 747 N- Mentor. Pasadena. Calif. (S. Paul Ward, Inc.) SWENTZF.L. John P. ( RI) 130 Beacon Hill Dr.. Metuchen. X. J. (Carborundum C> ) SWEO, Benjamin J. (EFI) Ferro Corp. 4150 E. 56th St., Cleveland 5. Ohio SWICA, Joseph J. Box 165. Alfred. X. Y. SWICKER. Victor C. (GF) 907 Floral Dr., Whittier. Calif. (Consultant) SWIFT. Howard R. (Gr) Lihhey-Owens-Ford Glass Co. 1701 E. Breadway. Toledo 5. Ohio SWIGART. Joseph J. (M) 3014 Middletown Rd.. Pittsburgh 4. Pa. (Vitro Rare Metals Co.) SWINDELL-DRSSSLER CORP. (Phiiio Dressier) Box 1388 Pittsburgh 50. Pa. SWIXEHART. David C 80ft E. i5nd. Ant. D. Seattle 5. Wash. SWINNERTON. 3ertram B. (W) 157 K airOder. Park. Tiffin. Ohio (American Radiator & Standard Sanitary Mfg. Co.) SWINNERTON. George R. <M) Box 944. Alliance. Ohio (Moore & Munger) SYLVANIA ELECTRIC PRODUCTS. INC. (3. S. Ellefson) 1740 Broadway. New York 19. N. Y. SYLVESTER. George R. (MI) Sylvester Sc Co. 17706 Mile* Ave.. Cleveland 2ft. 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. Ll-Chome Yokokawa-Bashi Sumida-ku. Tokyo. Tapan TAELER. David H. (EJ) 890 Elton Ave.. Bronx 51. N. Y. (Seaporcel Metals. Inc.) TAILBY, RoUnd V. (WI) Stylon Corp - Milford, Mass. TAJKOWSKI. Edward G. (G) General Electric Co. Silicone Products Dept. Waterford, N. Y. TAKA H Aa H I. K akuichiro (Fi Nipp.jn Glass Co. Ltd. No. 20. 1-ehome Sh:ba Shir.bashi Mir.ato-ku. Tokvo. lapan TALWALKAR, T. \V. 3 Bagmati Rd., Jamshedpur, India (Tata Iron k Steel Co., Ltd.) TAN BERG. Ragr.ar Drarr.mens Giassverk D rarr.m e n. X o r.v a v Tanner. . a m c -* t .. j r 2"55 Winchester Ct.. Raleigh, N. C. TAO, Yung (G) 501 S. Garfield St., Burlington. Iowa (Syivauia Electric Products, Inc.) TARNACXi. Walter J. iWD 84I7-C Loch Raven Blvd. Towson 4, Md. (Fries Instrument Div. Bendix Aviation Corp.) TARNOPOL. M ilt.m S. (Hi 943 Ninth Ave.. Brackenriage, Pa. (Pittsburgh Plate Glass Co.) TASH. Daniel B. ( M) 51< W. Brightwond St. M*iuerry Park. Calif. (Southern California Minerals Co.) TASHIRO. Megumi Institute for Chemical Research Kyoto University Yoshidahon machi, Sakyoku Kyoto. Japan TATE. Frank E. (WI) 310 Tenth St., Lincoln, III. (Stetson China Co.) TATF. M. William A. (R) 7 Willow Ln.. Carle Place, N. Y. (U. S. Navy) TATNALL. R. Francis Box 327. Alfred. N. Y. 7AURF.R. Charles B. (Hi 2l Signal Rd.. Signal Mountain. Tenn (American Lava Con*.) TAUBER ;.d::i \. R' .*>I'M) Mnytlmvcr Rd. Plymouth Meeting. i*a. ( E. I. Lavinn .A ('o j T \ UBLIF3. Marvin E. ' R ) Kaiser Aluminum k Chemical Sale*. Inc. J1 *>57 Seabury Ave. E.lirview Park 2S. Onto TAYLER. John B. t W) Louisville Pottery Co.. :nc. 223 E. Bloom. Louisville 3. Ky. TAYLOR. Alan \V. t B) Pennsylvania State University Dept, of Ceramic Technology University Park. Pa. TAYLOR. Charles D. (S) 21 Cumber Ave.. Salisbury. N. C. (Tavinr Clav Products. Inc.) TAYLOR. Charles H. (R) ft E. Sutton Ave.. Monrestown. 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 Sc Wilcox Co.) TAYLOR. Ernest C. 900 Main St.. Brockwav. Pa. TAYLOR. Fran (G) Gay Fad Studios. Lancaster. Ohio TAYLOR. Hiram D. (B) Diamonite Products Manufacturing Co. Shreve. Ohio TAYLOR. Howard U. (WI) Centralab Div.. Globe-Union Inc. 00 E. Keefe Ave.. Milwaukee 1, Wise. TAYLOR. J. J. (W) Ohio Brass Co., Barberton. Ohio TAYLOR. Kenneth M. (R) 1045 River Rd.. Lewiston. N. Y. (Carborundum Co.) TAYLOR. Louis J. (W) Laboratory Equipment Corp. Box 151. St. Joseph, Mich. Roster 111 TAYLOR. 'Nelson \V. . B Minnesota M'.nir.g i; Mfg Co. Fluorochem:cais Div ,JoO BuSh Ave., ijt. Paul 6. Minri. IWYLOR. Richard A. iSi Clay Products Assn, ot the Southwest 1U' I'er.rv-Brooks 3M-.J . V.Kiin. Texas TAYLOR. Robert 3. (S Structural Clay Products Research Foundation. Geneva, Ml. TAYLOR. Robert M . Jr. < R 1210 N' Jefferson. Mexico. Mo. (A. l\ Green Fire 3rick Co.) TAYLOR. SMITH Sc TAYLOR CO. ( E. P. Wright l Chester. W. Va. TAYLOR. Thomas J. tR) S16 Sterner Mill Rd., Trevose, Pa. (R. C. Remmey Son Co.) TAYLOR. Walter E.. Jr. (W) Thomas Works Delta Star Electric Div. H. K. Porter Co.. Lisbon. Ohio TAYLOR. William C. (Gr) Coming,; Glass Works, Corning. N. Y. TEAGUE, A. D. (R) Babcock1 St Wilcox Co., Box 923 Augusta!1 Ga. TEAGUE BRICK St TILE CO. (L. R. Boyd, Jr.) Box 329. Teague, Texas TEAGUE. Jo M.. Jr. (GI) Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 7, Ohio TEAGUE. William T. 209 McCord Sc., Marietta. Ga. TEETER. John N. (E) 677 Wilmot Rd., Deerfield. III. (Thomas C. Thompson Co.) `FETOR. Paul (BF) 72 E. Main St.. Somerville, X. J. (Central Commercial Co.) 'EFFT, Glenn C. (S) Claycratt Co.. Shawnee. Ohio `EFFT, Phillip W. (SFI> Claycratt Cc.. Bex 556 Columbus 16, Ohio `EFFT. Willard H. (S) Claycratt Co.. Upper Sandusky, Ohio EGELLABO RATO RIET (Brick Laboratory), (Christer E.nberg) Drottr.iag Kristinas vag 45 Stockholm O. Sweden EICKMANX, Henry F. (G) Henry F. Teicbmann, Inc. 3ox 1705! Pittsourgh 30. Pa. EICHMANN. Xewton X. (G) 316 Hardy Dr.. Bridgeville. Pa. {Henry p. Teichmann. Inc.) EMMERY. 1/Lt. Victor J. (BJ) U. S. Army Signal Eng. Labs. Chemical Physics Branch Ferroelectrics Unit Ft. Monmouth. M. J. ERMAM. Mark J. (R) Babcock St Wiicox Co. 135 Cedar St.. Mew York 6. M. Y. ERRY. Griffin E. (E) 602 E. Willow, Wheaton. III. (Hotpoint Co.) ERRY. Jack H. (E) 4321 Fairfield Ave., Fort Wayne, Ind. (General Electric Co.) EXAS BRICK CO. (W. T. Gill. Jr.) Box 510. Brownwood. Texas EXAS VITRIFIED PIPE CO. (Paul E. Hoey) Box 117 Mineral Wells, Texas HATCHER GLASS MFG. CO- INC. (Roy S. Arrandale) 1901 Grand Central Ave., Elmira, M. Y. HEOBALD, Erwin F. (S) 1516--18th St., M. W.. Canton 3, Ohio (Metropolitan Brick, Ine.) HEWS, Kart B. (M) 83-09 Talbot St. Xew Gardens, L, I., M. Y. (Titanium Alloy Mfg. Div.. National Lead Co.) ol. 36, No. 10 (1957) 7 M 1 E L K E. Norman R. B ) Xat-.or.al Cartam Co.. Research Lobs. Box 6116. Cleveland l. Ohio THIEMANN. John W. iW!i .Mile Div.. L. S. Stoneware Co. Box H'*. Orrviile. Ohio TH1EMECKE. Harry W. iWF!) Homer Laughlin China Co. Newell, W. Va. Till ESS. L. E. i WF' Insulator Dept.. Gcnetai Electric C>>. B<x 57. 3aitimore 5. Ml. THOMAS. Charles A. G. E. J. St J. Pearson. Ltd.. Firebrick Works, Stourbridge. England THOMAS. Charles W. (Honorary) Clifton House. Old Swinford Stourbridge. England (E. J. St J. Pearson, LtdFirebrick Works) THOMAS. David W. (WI) Tyccr Pottery. Inc. Armstrong St.. Roseville, Ohio THOMAS. Everett A. (R) 2703 Shaffer Ave.. Cincinnati II, Ohio (Chas. Tavlor Sons Co.) THOMAS. George L. (G) Holophane Co.. Inc., Newark. Ohio THOMAS. H. H. (M) 35 Highboy Court, Red Bank. M. J. (Pemco Corp.) THOMAS. Richard V. (PA 25 Catharine St.. Worcester. Mass. (Morton Co.) THOMAS. Robert B. (GJ) National Bureau of Standards Washington 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. PORTER CO. rFrank Mason) Lisbon. Ohio THOMASON. James F. (WJI) R. R. 4. Spartanburg. S. C. (Kohler Co.) TKOMPSEN. Robert S. (R) 2418 Ruby Dr.. .Augusta, Ga. (Babcock St Wilcox Co.) THOMPSON. A. Paul (RF) Research Laboratories Ea*ie-?icher Co.. Joplin. Me. THOMPSON. Charles W. (R) 216 Dell St.. Johnstown, Pa. (Bethlehem Steel Co.) THOMPSON, Clyde L. (RFI) 4922 Mew Plymouth Rd. Pittsburgh 27, Pa. (Harfcison-Walker Refractories Co.) THOMPSON. 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.. Wilmington 6. Del. (E. I. du Pont de Nemours Sc Co.) THOMPSON. Frederick S. (RF) Corhart Refractories Co. 940 Commonwealth Bldg. Louisville 2. Ky. THOMPSON, G. L. Borax St Chemicals. Ltd. J5 Piccatlillv. 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. (Ei Box 232. Williams Bay, Wise. (Thomas C. Thompson Co.) THOMPSON. L:. William M.. Jr. <BL WADC. Area 3. Bex 8303 W right-Patterson AF3, Dayton. Ohio THOMSON. Homer G. (R) 12101 W. Howard S: Milwaukee 14. Wise. (Allen 3rac!ey Co.) THOMSON. James K. (W) 2 McMasrer ?!., 3ath. N. Y. (Westinghouse Electric Corp.) THOR, Murr.er E. (RI) 313 Parkhurst Blvd.. Buffalo 23. N. Y. (Nonon Co.) THORNE. James E. (\VJ) Case Manufacturing Corp. Robinson. III. THORNGATE. Bruce W. (W) 1841 Oakland Blvd. Fort Worth. Texas ( Roval Tile Mfg. Co.) THORNTON. George A. (M) Ottawa Silica Co.. Box 437 Ottawa, III. THORNTON. H. Richard (EJ) National Bureau of Standards Washington 25. D. C. THORNTON, Paul E. (WI) 1708 La Taza Dr., La Canada, Calif. (Ferro Corp.) THRASHER. William R. (D) 270 Merriman Rd.. Akron 3, Ohio (Model Ceramics. Inc.) THROPP. Herrcld D. (M) Shenandoah Silica Co., Inc. 190 W. State St., Trenton 3, 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. Centra! Research. Ceramics Section Hml>nn Rd. St Me Knight Ave. St. Paul 6. Minn. THUT, Walter W. A. G. Hunaiker St Cie. Lagerstrasse I Zurich. Switzerland i HWIN. Maung On Box 216. Alfred. N. Y. TIBBALS. Harvey L. {MI) 542 Santa Barbara Rd. Berkeley 7. Calif. {Minneapolis-Honeywell Regulator Co.) TTCE. Henry B.. Jr. (W) 537 S. Ninth Ave.. La Grange. III. (Zenith Radio Corp.) TICKLE. William H. F. "Brown Stacks." Caidy Nr. West Kirby. Cheshire. England (Manchester College of Technology) TIDD. Elbert D. (W) Bell Telephone Labs. Inc., Rm. 38-266 Whippany. N. J. TIEDE. Ralph L* (G) Owens-Coming Fiberglas Corp. Case Ave.. Newark, Ohio TIERNON, Carlos H. (M) Deister Concentrator Co. 901-935 Glasgow Ave. Fort Wayne, Ind. TIFTTCXJIAN. John D. (W) Winbum Tile Mfg. Co. 1709 E. Ninth St., Little Rock, Ark. TIGHE, Nancy J. (E) 1650 Harvard St.. N. W., Apt. 116 Washington 9. D. C. (National Bureau of Standards) TTLLOTSON, Gifford (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.) Roster 113 TNKLEPAUCH. J. R. (R!) State University of New York Coilege of Ceramics at Alfred Univ. Alfred. N. Y. ITANIUM ALLOY MFC. DIV. NATIONAL LEAD CO. (W. J. 3a!dwin) 3ox C. Bridge Station Niagara Fails. N. Y. OBERG, John (E) Shepherd Chemical Co. 2303 Highland Ave. Cincinnati 12. Ohio OBEY. Her.ry M. (S) Dow Chemical Co.. Midland. Mich. OCHER. Edwin (MJ) '.>60 N.hle Rd.. Apt 12 Cleveland 21. Ohio (General Electric C<.) ODD. Henry (W) Dee Lane. Queenston. Ont., Canada (Canadian Ohio Brass Co.) QEPFER. George (W) Canadian Potteries Ltd. 360 Blvd. Seminaire St. Johns. Que., Canada OLER. Herbert R. (E) R. R. 2, 3ox 54a, West Chicago. III. (Indiana Steel Prod. Co.) OI.LIVER. 3ii 1 y R. 1627 Virginia. Illini-Village Urbana. HI. OLLY. Donald B. (E) 122 Hudson Ln., .-ern Creek. Ky. (General Electric Co.) OIL Elgin M. (G) 4208 Marlaine Dr., Toledo 6, Ohio (Kimble Glass Co.) OMASEK. A. J. i Ri Walsh Refractories Corp. 101 Ferry St.. St. Louis 7, Mo. DMKINS. David E. (M) R. R. S. Eastbrook Rd., New Castle, Pa. (Sbenango China. Inc.) OOL. Arthur Q. (GF) 7225 Carroll Ave. Takoma Park 12. Md. {National Bureau of Standards) 3GLEY. F. V. (GF) 511 W. Oregon. Urbana. III. (University of Illinois) DPPING. Joon (R) United States Steel Corp. 325 William Penn PI. Pittsburgh 30. Pa. \??!NG. Stanley M. -W4 Cleveland Ave.. Horne!!. N. Y. jrgal. k. g. "Happy Home." Mannarpuram Timchirapalli. S. India (Jamal Mohamed College) )RNO. Ralph F. (E) 410 Front St.. Berea, Ohio (McGean Chemical Co.) )ROK. Julius J. (G) . 3344 Gailatin -Rd., Toledo 6. Ohio (Owens-Illinois) JRRANCE. Fred E.. Jr. ( B) Pomona Tiie Mfg. Co. 3ox 633. Arkansas City. Kaos. JRREYSON. William F.. Jr. (R) Aluminum Co. or America 1800 Rhodes-Haverty Bldg. Atlanta 3. Ga. >STEVIN. Edgar R.. Jr. (\VI) 62 E. Market St.. Bethlehem. Pa. (Western Electric Co.) >UI.OUSF.. Julian H. (GFt) Owens-Illinois Box I0JS. Toledo 1. Ohio tWNSEXD. Franklin M. (RJ) Aluminum Co. of America Box 407. East St. Louis. 111. WNSEND. William O. (Gl>. 2763 Nottingham Rd. Columbus 21. Ohio (Batteile Memorial Institute) ABERT. Loren A. (WI) General Electric Co. 1811 LeMoyne Ave., Syracuse, N. Y. l. 36. No. 10 (19.57) trldi'.:;\ :r:<. \viiii:.in t ri Refract - tv Special t ie- (' 2J(li) Wa-hingttin \r. Philadelphia 46. Pa. TRErFNER. Waiter S. i, R) 440 \V. Maple Rd. Linthicum Heights, M<J. (Generai Refractories Co * TREISCHEL. C. C. R. T. Vanderbilt Co . 250 Park Ave. New Yrk 17. N. Y. TREITLER. Theodore L. (GU Corning Glass Works, Corning. N. Y. TRENTON POTTERIES CO. Plants 1 3, 309 N. Clinton Ave. 3ox 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 (John Knowles & Co., Ltd.) TRIBE, Harold G. Electricity Meter Sc Allied Ind-. Ltd. Box 4. Waterloo, Sydney, Australia TRIEBER. J. Marshall ( R) 1024 I.yii.la Ln.. Arlington. Texas iTemco Aircraft. Inc.) TRINIDAD CLAY PRODUCTS. LTD. (Haroid A. EckrP 44. South Quay Port nf Spain. Trinidad. B. W. T. TRINITY CERAMIC SUPPLY. INC. ( E. O Davidson ) 100 Howell Sr.. Dallas. Texas TRIXKLEIN. Rnbert L. (W) 800 College. Cleveland. Miss. (Misceramic Tile Co.) TRIPP. Harlan P. (El) 3605 Winchester Rd., Louisviile 7, Ky. (General Electric Co.) TROMPETER. Bernard J. (M) Champion Spark Plug Co. 3525 3utler Ave.. Detroit 11. Mich. TRC3T. Frank W. (R) Chas. Taylor Sons Co. 5 Haddon Ave., Haddonneid. N. J. TROSTEL. L. J. (RFI) General Refractories Co.. Box 1673 Baltimore 3. Md. TROSTEL. Louis J.. Jr. (RI) .Norton Co.. I New Bond Ft. Worcester 6. Mass. TROY. H. Neal (RI) Owens-iUinois Technical Center 1700 N. Westwood Ave.. Toledo 7, Ohio TROY. Walter J. (E) 338 Chili Ave.. Rochester. N. Y. (Pfaudler Co.) TRUESDALE. Richard S. (I) Box 275. Alfred. N. Y. TRUMBULL. Tames L. 606 W. 83rd. Seattle 7. Wash. TRUMPLER. Alfred L. (W) Harper Electric Furnace Corp. 39 River St.. Buffalo 2. N. Y. TSE. Shoii-cheng (WI) Box 208. FranklinviPe. \*. Y. ( Hi-Q Div.. Aernvox Corp.) TSUK A DA. Kenichi 69 Shimgane Sarumachi. Fhiba Minato-Ku. Tokvo. Japan TUCKER. Donald J. (MI) 2114 Winthrop Rd. Huntingdon Valley. Pa. TUCKER. Edward F. (R) Stehbins Engineering & Mfg. Co. 363 Eastern Blvd., Watertown. N. Y. TUCKER. Harvey C. (WI) Ferro Corp.. 4150 E. 56th St. Geveland 5. Ohio TUCKER. Roland E. (WI) Trenroo 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. (MI) R. R. I. Dresden Hwy.f Paris, Tenn. (H. C. Spinks Gay Co.. Inc.) TURUN. Ra\:iu-uii L. <M) : >: Ma:upde:i I'ark. Turin. Ohio Sterling Grinding Wheel l.'o.i 7URCOTTK. Richard . R ; A. ?.l l.i.ckctt A 1ii. !808 C ! Life 3l.lv:. 1:mu>p*u 2. Texa* TURLSSiNI. Mi. Corning Glass Works. Corning. N. Y. TURK. Haroiii Falihrook Plar; Box 374. \Ifr*ril. N. Y TURK. Richard H. (EFl) Pemco Ccrp.. 5601 Eastern Ave. Baltimore 24. Md. TURLEY. Char!e> I.. ( B) B. F. Drakenfeld Sc Co.. Ir.c. Box 519. Washington. Pa. TURNBAUGH. Jerry E. 5310 33rd Ave. S.. Seattle 3. Wash. TURNBULL. Edward D. (W> Eustun Lead Co. 5<i0 Penn Ave.. Scranton 3. Pa. TURNBULL. John C. (G) Radio Corp. of America RCA-Victor Div., Lancaster. Pa. TURNER. A. A. (R) 153 Lake Ave.. Metuchen. N. J. (Carborundum Co.) TURNER. Donald Lodge Plugs Ltd.. St. Peter's Rd. Rugby. Warwick. England TURNER. John H. 7J E. 15th Ave.. Columbus 1. Ohio TURNER. Mort D. (B) Calle 12 de Octubre AM Hato Rey, Puerto Rico < Puerto Rico Minendngv & Geology Section) TURNER. ?. P.. Jr. (RI) 46 Imbler Dr., Cincinnati 13. Ohio (General Electric Co.) TURNER- Reginald E. :W) M'inarch 71^ Manufacturing. Inc. 602 S. Oakes St.. San Angelo. Texas TURNER, w. E. S. (Honorary) 30 Whitworth Rd., Ranmoor Sheffield 10. England TUTTLE. George N. (EF) Benjamin Electric Mfg. Co. Seegers Rd. 3c N. W. Highway Des Plaines. III. TUTTLE. Milton A. (R) Eox 981. Alfred. N. V. (State University of New York, College of Ceramics) TWELLS. Robert (WFI) Electric Auto-Lite Co.. Spark Plug Div.. Box 231 Fostoria, Ohio TWELLS. Robert G. (GO 2824 EdgeclirT Rd. New Kensington. Pa. (Pittsburgh Plate (ilas> Co.) TWYFORDS. LTD. Clirfe Vale Potteries Stoke-on-Trent. England TYGART VALLEY GLASS CO. (E. A. Hir.kins) 3ox 503 Washington. Pa. TYLER. W. S.. CO. (C. E. Jenks) 3615 Superior Ave.. N. E. Geveland 14. Ohio TYRRELL. Miles E. (R) Box 412. Norris, Tenn. (U. S. Bureau of Mines) TYSINGER. Ted W. (S) Box 265. Pleasant Garden. X. C. (Boren Clay Products) u UELTZ. H. F. G. (B) 3RQ Walnut St.. Shrewsbury. Ma>s. ( Norton Co.) UHRMANN, Carl J. (GF) Overlook Ct., Bellaire, Ohio (Arthur W. Schmid Co., Inc.) Roster 115 CLEMAN, Turreil (G) 109 Virginia Ave., Aspinwail, Pa. (Pittsburgh Plate Glass Co.) ULRICH, Robert J. () American Radiator St Standard Sanitary Corp. 1541 S. Seventh St.. Louisville 3, Ky. UNION FRANCAISE DES PRODUITS REFRACTAIRES (Louise Halm) 15, Rue de Milan, Paris 9e. France UNITED CLAY MINES CORP. (K. E. Ward) 101 Oakland St. Trenton 6. X. J. UNITED STATES BORAX k CHEMICAL CORP. (M. H. Pickard) Pacific Coasr Borax Co. Div. 50 Rockefeller PI., New York 20, N. Y. UNITED STATES GYPSUM CO. (Robert Hamilton) 300 W. Adams St. Chicago 6. III. UNITED STATES STEEL CORP. (W. S. Debenham) 525 William Penn PI. Pittsburgh JO, Pa. UNIVERSAL CLAY PRODUCTS CO. C. L. Evans) 1523 E. First St.. Sandusky, Ohio UNIVERSAL DENTAL CO. (Joseph Xohn) 48th St Brown Sts. Philadelphia 39. Pa. UNIVERSAL POTTERIES, INC (Harrv . Davis) Cambridge, Ohio UNIVERSAL-RUNDLE CORP. (A. L. Johnson) W. Keith McAfee Lab. Box 1258.. Maboninglown. Pa. UNIVERSAL-RUNDLE CORP. (H. P. Wangelin) 3305 W. Forest Horae Ave. Milwaukee 15. Wise. JNUM, Robert F. (WI) 811 Wilmington Ave., New Castle, Pa. (Universal-Bundle Corp.) /PTON. Lee O. (G> American Optical Co. 14. Mechanic St.. Southbridge. Mass. 7RSAN, Stephen F. (B) 268 Hanford Ave., Kenmore 23, N. Y. (Titanium Alloy Div., National Lead Co.) 7RXES. Sigmund (B) Pennsylvania State University Dept, of Ceramic Technology University Park. Pa. 'RODE. Raymond J. Box 326. Alfred. N. Y. fTAH FIRE CLAY CO. (C. H. Myers) Box 127, Salt Lake City 10. Utah V AIL. Milford R. (RJ) 4014 Spruce St.. Philadelphia 4, Pa. (Naval Boiler & Turbine Lab.) ALENCIA. Camilo (W) Plaza Rio de Janeiro No. 52-5 Col. Roma. Mexico. D. F. (FerTo Enamel de Mexico. S. A.) ALENTINE FIRE BRICX CO. DIV. A. P. GREEN FIRE BRICX CO. (W. H. Peterson. Jr.) Woodbridge, X. J. ALENTINE, Peter Cooney (M) Del Monte Properties Co. 620 Market St., San Francisco 4, Calif. ALYL Ilsaoe E. (R) 20 S. Broadway, Yonkers 1, N. Y. (A. R. D. Corp.) AN AKEN. Robert C. (W) Sperry Gyroscope Co. Div. Sperr*-Rand Corp., 1P39 Great Neck. N. Y. AN ALSTEN, Roy L. (RI) 9168 Sarasota. Detroit 39, Mich. (Ford Motor Co.) \NCE. Clarence E. 1213 Superior Ave.. Sheboygan, Wise. \N CLEAVE, A. A. (R) 3100 McGroarty St., Sunland. Calif. 3L. 36, No. 10 (19.57) VAN COTT. Harrison C. <. B) R.R. I, Horseheads. N. Y. (Corning Glass Works) VAN DER BECK, Roland ' B I'i itupakor: Div., Carborundum Co. Latrcbe. ?a. VANDER3ILT. R. T.. CO. (Ira E. 5 proa:) 250 Park Ave. New York 17, N. Y. VAXDERMADE. Richard J. (R) J89 Willow Dr.. Pittsburgh 15, 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. iM) Metal St Thermit Corp.. Rahwav, N. J. VAN HORN, Harry T. (M) 741 Floral Park Rd. Franklin Square. X. Y. (Socony Mobil Oil Co.. Inc.) VAN HOUTEX, Louis A. Fabricacion de Abrasivos S. A. Casilla de Correo 24 Campana, Argentina VAN1CK. James S. CM) International Nickel Co., Inc. 67 Wall St.. New York 5, N\ V. VAX NIEUWENBURG, C. J. Laboratoriura voor Analytiscae Scbeikunde (Microanalyse) de Vries van Heystplein 2 Delft, Netherlands VAN SCHOICX. Emily C. (XF) State University of New York College of Ceramics, at Alfred Lrniv. Alfred. N. Y. VAN SCHOIK. Dickson M. (RI) 5950 S. Lake Shore Dr.. R. R. 2 Box !09. Whitehall. Mich. (Misco Precision Casting Co.) VAN TASSEL. R. H. (E) 527 Green Tree Rd.. Kohler, Wise. (KohJer Co.) VAN VLACX. Lawrence H. (31) Dept, of Chest. St Metal. Engineering University of Michigan Ann Arbor. Mich. vax WAS3ENHOVE, Pierre N. V. "De Sphinx'* Maastricht. Holland VAN WIGGEREN. Charles G. (WI) Simonds Abrasive Co. Tacony St Fraley Sts. Philadelphia 37, Pa. VAN ZEE. Arthur 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.. Winthrop. Mass. (AVCO Research & Advanced Devel. Div.) VAUGHAN. W. Harry (XFI) Cherokee Brick St Tile Co., 3ox 58 Warerville Rd.. Macon, Ga. VEALE. Jack H. (R) 406 Reedwood Dr.. Joliet. III. (Illinois Gay Produets Co.) VEIGA, Roberto A. Ceramics Santa Helena Ltda. Rua 15 De Novembro 38 Paranagua. Parana. Brazil VENABLE. Charles R.. Jr. (RD 1660 S. Oak. Bartlesville. Okla. (Phillips Petmlnm Co.) VENABLE, Joe G. (G) Chattanooga Gass Co. Chattanooga 10. Tenn. VENABLE, Ray H. 742 Berclair Rd.. Memphis, Tenn. VERBA. Richard J. (M) Schweirzer Equipment Co. 3764 Ridge Rd., Cleveland 9, Ohio VERDL'C::. Antonio G. (E) State University New York College oi l.sramicj Alfred V VERZOCCMI. Enrico Via P. Coisa I, Milano. Italy i Rcira::ari Verzocchii VESUVIUS CRUCIBLE CO. I A. J. Jackman) Box 8275 Y Swissvale. Pittsburgh 18 pa V1CARY. J. W. Ervite Corp.. Box ;927 Presque Isle 5:a.. Erie. ?a VICTOR INSULATORS DIV. I-T-E CIRCUIT BREAKER CO. (H. Failmergen Maple Ave. Victor. N. Y. VIDAXOKF, Richard 3. (GJ) General Electric Co.. Quartz Hint Willoughby. Ohio VIDPLAN S. A. (Daniel Ferres) Real No. 441?, Montevideo. Uruguay VIDRIERA MONTERREY. S. A. (Alfonso F. Rodriguez) Aparrado 162, Monterrey N. L., Mexico VtGER, Burnett C. (G) 130 E. Third St.. Corning, N. Y. (Cowing Glass Works) VILENSKY. Michel 3. (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 ?. (R) Kaiser Aluminum & Chemical Sales, Inc. 3 Gateway Center. Pittsburgh 22, Pa. VINCENT. George L. (WI) 22026 S. Miilard Ave. Ricruon Park. III. (Ceramic Industry* VINES. Raymond F. (3) Dentists' Supply Co. of New' York 500 W. College Ave., York. Fa. VINTHER. E. Heikel Porcelain fa briken Nordert Valby Langgade 95 Copenhagen. Denmark VIOLA. Nazzareno. Jr. University Club. State College. Pa. VISCONTI di MODRONE. Raimondo Soc. Ceramica Richard Ginori 1 via 3igli. Milan. Itaiv VITACHROME. INC. (R. Pottinger) 421 E. Sixth St. Los Angeles 14. Calif. VITOLO. Sylvester A. (RI) Gen. Del., Long Valley, N. J. (Austenai. Inc.) VITREOUS STEEL PRODUCTS CO. (Edgar H. Weil) 2727 Woodhill Rd.. Cleveland 4. Ohio VITRO MANUFACTURING CO. (Joseph Boyce) 60 Greenway Dr. Pittsburgh 4, pa. VODICXA. Albert L. (E) Aetna Porcelain Enameling Co. 4701 Augusta Blvd., Chicago 51, III. VOGEL, Ralph B. (M) National Lime <St 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 Rrxford Rd., Bay Village. Ohio (Ferro Corp.) Roster 117 V l' K < ) V ! C i i. M i!a:i. Jr. ( M !) KiiJMbeth A*, c. 13. Ohio * f Ifre.'- 1-. liot. 1 nc.) w WAHN l K. Fred lo\ Alfred. X. V. WACHTMA.V John 3.. Jr. (B) N'af.or.ai Bureau of Standards, Div. 9.1 Conn. Ave. St Van Ness St., N. \V. Washington -5, D. C. WADK. Arthur "Hilltop". Parkside Avc. Cockermouth. Cumberland, England (Dorman, Smith Plugs Ltd.l WADK. Don E. (W) Misceramic Tile Hnx 1070. Cleveland. Mias. WAGGONER, Jack H. (GF) 240 Quentin Rd., N., Newark, Ohio l Filler Cilaas Div. Pittsburgh Plate Glass Co.) WAGNER; Bruce F. (W) , 186 N: Vernon Ave., Pasadena J, Calif. (3. F. Wagner & Co.) W.MiM-R; Charles D. (W) U,, F Wagner & Co. 1*6 X. 1 Vernon Av,, Pasadena .1. Calif. WAGNER. Harold C. (R) Shnrrham Drive. Boa 76G, R. R. 1 St. Joseph. Mich. (Zirconium Corp. of America) WAGNER. Rio B. (M) 1398 Bnce Rd.. Reynoldsburg, Ohio (Perma, Flex Mold Co.) WAGSTAFF. Frank E. 5021 ITth X. E.. Seattle S. Wash. WAHL. Albert j. I.M) A. J. Wahl, Inc., 8 Central Ave. Brocron. N. Y. WAHLGREN, Wald A. B. Gustavsbergs Fabriker Gusravsbery, Sweden WAINER, Eugene (W) . `Horizons, Inc.. 2905 E. 79th St. Cleveland 4. Ohio WAITE. Virgil H. (E) 43J Seech St.. Berea. Ohio fMcGean Chemical Co.) WAIVER. Gecer: J. iW) 909 S7tb'; St., North Bergen. X. J. (B. G. Corp.) WAKEFIELD. Richard E. B. *D Hethenngton. Inc.. 1200 Elmwood Ave. Sharon Hill. Pa. WAXELY. Wilbur T. (GJ) Sylvania Electric Products. Inc. 325 Lexington. Warren. Pa. WALDAL. James C. 2425 Second Ave., W. Seattle 99. Wash. WALDEN, Albert S. (R) National 'Carbon Co.. Cleveland, Ohio WALKER. Eugene E. (W) 220 W. Sheridan Ave.. New Castle. Pa. (Universal-Rundle Corp.) .VALKER. Henry E. (G) Harding Glass Co.. Sta. Q, Uux 38 Fort Smith, Ark. .VALKER. Herbert M. (W) Walker China Co., Solon Rd. Bedford, Ohio VALKER. John Morgan Crucible Co., Ltd. Battersea Church Rd. London, S. W. 11. Encland VALKER. Stuart D. (CD 112 E. Lake St.. SkaneateJe*. N. Y. ( Hevi*Dutv Electric Co.) VALKER, Warren W. (3) 29 Laurel ?!., Upper Montclair, N. J. (Graphite Metallizing Corp.) VALKUP, D. H. (W) Kilgore- Ceramics Corp., Box 1619 Kilgore. Texas /ALLA. Max R. (W) Box 1369, Little Rock, Ark. (Winbum Tile Mfg. Co.) "ol. .1(5. No; 10 (lO.-j?) U \ : lm r !:. t W i l.o X. ; ".h St., ijlean. N. V. Mli*L) D:v , Aero\ox Corp. WALLACE. Paul F. 1 B) Aluminum Co. of America Alcoa Research Labs.. Eo.x 772 New Kensington. Pa. WALSH. Donald E. iG' Consolidated Feldspar Dep:., International Minerals Si Chemical Corp. East Liverpool. Ohio WALSH REFRACTORIES CORP. (A. J. Toir.asek) 101 Ferry S:. St. Louis 7, Mo. WALTER. Jake J. 131 Stanton Ave., Ames, Iowa WALTERS. Emmet: L. \G) Libbev-Owens-Ford Glass Co. 1701 E. Broadway, Toiedo 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) Kennatr.etal, Inc. Lloyd Ave.. Latrobe. Pa. WAMPLER. Roy W. (G) Libbey-OwensFord Glass Co. Technical Bldg.. 1201 E. Broadway Toledo 5, Ohio WANG. Chan-huan (W) 2509 X. W. Lovejoy St. Portland 10. Ore. (Tektronix. Inc.) WANG. Franklin F. Y. (E) Glascote Products, Inc. 20900 St. Clair, Cleveland 17, Ohio WAXGELIN. H. P. (E) Universal-Rundle Corp. 3305 W. Forest Home Ave. Milwaukee 15. "Wise. WARD. George V. (R) McLain Works. Refractories Div. H. K. Porter Co.. Inc. Weilsville. Ohio WARD. George W. (G) 1049 W. 32nd Ave. Vancouver ?. 3. 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. Paui fit) 601 Mission St.. Box 345 South Pasadena, Calif. (S. Paul Ward, Inc.) WARD, Thomas J. Box 3, Ogdensburg, N. Y. WARDE. John M. (RF) Union Carbide Ore Cn. Carbide St Carbon Bldg. 30 E. 42nd St.. New York 17. N. Y. WARE. Robert K. 1407-B Brackenridge Apt. Lake Austin 31vd.. 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 Blurf, 111. (Sierra Talc St Clay Co.) WARRELL. 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. WAKSIi \ W. Umei B) l'c:Jii>> h (ir.ia Mate Ur.i\ers;ty (."liege <>i Mineral Ir.diotric* University Park. Pa. \V.\ RSI 1 A'.V, Stanley 1, 22S Foster St.. 3righ:o:i. Maas. WARYGA. Casimcr F. S6j Colwyn RJ.P Jerkxto^n. Pa. (Frank Samuel i Co., Ir.c.) WASHABAUGH. Grover C., Jr. (M) New Castle Refractories Co. New Castle. ?a. WASHINGTON BRICK & LIME CO. (Walter Scmers) 3ox 219S Spokane, Wash. WASHINGTON PORCELAIN CO. (E. R. Miller) Willow St. Washington, N. J. WATERS, Martin R. (WI) 22 Red Rose Way. Levittown. Pa. (Wenczel Tile Co.) WATKIN, Robert \V. (W) R. R. I. 3o.\ 173. Odessa, Fin. (Edwin M. Knowles China Co.) WATKINS. E. Charles <WJl) Chapel Rd.. R.R. 3, Zanesville, Ohio {Mosaic Tile Co.) WATKINS. George 3. (G) Libbey-Owens-rord Glass Co. 1701 E. Broadway, Toledo 5. Ohio WATKINS. Ray T. (S) U. S. Tarift Commission. Ceramic Du . Eighth St E Sts., N. W. Washington 25. D. C. WATKINS. Ens. Robert V. (GJ1) BOQ--NAS. Hutchinson. Kan*. 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 Wazt) Crooksville, Ohio WATTS, Arthur S. (Honorary, WrI) Lord Hall, Ohio State University Columbus 10. Ohio WATTS. Richard L. 172 16th Ave., Columbus, Ohio WAUFLE. Harold E. 16)6 Greenwood St.. Canisren. N. Y. WAUGH, J- Stanley Mass. Inst, of Tech., Bldg. 20 Rm. 20-C-001. Cambridge 39, Mass. WANLER. Roy M. (G) National Bureau of Standards Conn. Ave. St 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, X. Y. WEAVER, Harold L. (G) 303 Chestnut St., Port Allegany, Pa. (Pittsburgh Coming 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 Eleo Dr.. Maumee, Ohio (Harbison-Walker Refractories Co.) WEBER, Arthur W. (G) Coming Glass Works Coming, N. Y. Roster 119 WE3ER. Berthnid C. (3) 5333 Saranac Dr.. Dayton 9. 0b:o i Wright Air Development Center) WEBER. Charles H. (Si Port Costa Brick Works a01 Berry St.. San Francisco. Caiii. WEBER, Don A. (S) Detster Concentrator Co. 901 Glasgow Ave . For: Wavne, Ind. WE3ER. Netll tG'i Melicn- Institute 4400 Fiith Avc.. Pittsburgh 13. Pa. WEBSTER. Charles E. (RI) 311 E. 3eaver St.. Zelienoplc. Pa. (Lava-Crucible-Refractories Co.) WE3STER, David (S) Polychemicais Div. West Virginia Pulp 4 Paper Co. Box 332. Charleston. S. C. WEEDY. Robert C. (R) Harbison-Walker Refractories Co. Box 957. Windham, Ohio WEHTJE. Ernst I. 2.Hans M ichelsensgatan Malmo I, Sweden (Skanska Cementaktieboiaget) WEHTJE. Xarf Fredrik A/B Rorstrar.ds Porslinstabriker Lidkoping, Sweden WE1DEL. Robert A. (G) 497 Apple Orchard Lane Webster. N. Y. (Bausch & Lornb Optical Co.) WEIDEN3AUM, Sherman S. (G) 39 W. Second Sr., Corning. X. Y. (Coming Glass Works) WEIDLICH. Gilbert (M) 640 E. Jefferson, Kirkwood, Mo. (Western Machiner* & Engine Co.) WEIDMAN. V. Wesley (R) 201 Duncan Ave.. Wilmington 3. Del. (E. I. du Pont de Nemours 4 Co., Inc.) WEIGEL. Robert C. (R) 320 Woodlawn, Mexico. Mo. (Mexico Refractories Co.) WEIL. Edgar H. (2; Vitreous Steel Products Co. 2727 Woodhiil Rd., Cleveland 4. Ohio WEIL. Kurt E. Rua Batatais 472, Sao Paulo. Brazil (Quimica Industrial Barra do Pirai S/A) WEINSTEIN. Alex (G) Ednaiite Opr.cai Co.. Ir.c. 200 X. Water St.. Peekskill. N. Y. WEINTRiTT. Donaid J. (M) Baroid Div., National Lead Co. Box 1675. Houston 1. Texas WEIS. Joseph H. WI) 608 Demong Dr.. Syracuse 3. X. Y. (General Electric Co.) WEIS. Robert J. (W) 3902 Brownsville Rd. Pittsburgh 27. Pa. (Vitro Manufacturing Co.) WEIS. Valentine E. (B) Stetson China Co.. Lincoln, III. WEISE. Robert L. (G) 307 Ohio St.. Somerset. Ky. (General Electric Co.) WEISEXSEEL. Charles W. (WJ) Jackson Tile Mfg. Co. Box 2006, Jackson. Miss. WEISS. David University of California Dept, of Engineering, Engr. 3011 Los Angeles 24, Calif. WEISS. E. Joseph (BI) Dept, of Ceramic Engineering University of Texas. Austin. Texas WEISS. W. Russell (R) Wellsvtlle. Mo. (Wellsville Fire Brick Co.) WEISZ. Robert S. (B) International Telemeter Corp. . 2243 Pontius Ave. Los Angeles 64, Calif. WELCH. A. Philip (BI) 7018 Glade Ave.. Canoga Park, Calif. (Atomics International) 7ol. 36. No. 10 (1957) WELCH. Archibald (S) Cooksvilic Co.. Ltd. 1055 Verge 5:.. Toronto, Or.t., Canada WELCH. James S. American Ceramic Society 4055 N High S:.. Columbus 14. Ohio WELCH. John C.. Jr. i B* 110 Escalona Ct.. Santa Cruz. Calif. (A. ? DeSunr.o 4 Son) WELCH. Richard L. (Rl Dominion Firebrick 4 Clay Products ( 1954 ) Ltd. Ciayhar.k. Sask.. Canada 'WELLER. 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. Staif, 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 0. (3) University of Michigan Engineering Research Institute E. Engineering Bldg., Rm. 4201 Ann Arbor. Mich. WELLS. Robert M. (W) Homer Laughlin China Co. Newell. W. Va. WELSH. John J.. Jr. (G) Mississippi Glass Co. 38 Angelica St.. St. Louis 7, Mo. WELSHANS. L. T. (R) Diamond Alkali Co.. Cement-Coke Div. 300 Union Commerce Bldg. Cleveland 14. Ohio WELTE. Ralph J. (S) Summit Pressed Brick 4 Tile Co. Box 533. Pueblo. Coio. WELTERLEN. James D. (W) 4630 Zane St.. Los Angeles 32. Calif. (Gladding, Me Bean 4 Co.) WEXCZSL. C. (W) Wenezel Tiie Co.. Box 903 Trenton. N. J. WENCZEL TILE CO. (C. Wenezel) Box 908. Trenton. N. J. WENDT. Nelson E. (W) American Potash 4 Chemical Corp. 595 Foch Blvd.. Wiiliston Park, N. Y. WENGER, James A. L. Messrs. Wengers Ltd.. Etruria Stoke-on-Trent. Stafford. England '.VENNING, W. F. (E) Ceramic Color 4 Chemical Mfg. Co. Box 297, New Brighton. Pa. WENTZ. B. B. (S) Belden Brick Co. 700 W. Tuscarawas St.. Canton I, Ohio WERKEMA. Thomas E. (S) Dow Chemical Co., Midland. Mich. WERNER. Alan J. (G) 139 Watauga Ave., Coming, N. Y. (Coming Glass Works) WEST. Frank Haslemere Greenlane Buxton. Derby, England (Derbyshire Silica Fire Brick Co.) WEST, Howard F. (R) Illinois Clay Products Co. 68 N. Chicago St.. Joliet. III. WEST, 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. WESTERN BRICK CO. (I. R. Cline) Danville, 111. WESTERN CLAY MFG. C. (A. C. Bray. Jr.) Box !7*i. Helena. Mont. WESTERN ELECTRIC CO.. INC. ij. W. Scott-7550) Hawthorne Sta.. Chicago 33 II! WESTERN ELECTRIC CO.. INC. (W J. Scott) 3500 Broer.ing Hwy. Baltimore 34. Mii. WESTERN FELDSPAR MILLING CO. (A'. E. Magr.usor.) Box 5/1 Salica. Colo. WESTINGHOUSE ELECTRIC CORP. (John D Hamish. Jr.) Derry. Pa. WESTLAKE. C. Rogers (WI) 1961 Christmas Run Blvd. Wooster, Ohio ( Diamomte 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 Coro.. 3razil, Ir.d. 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. WHALLON. William P.. Jr. (M) 3551 County Line Rd.. Chalfont. Pa. (Glohar Div.. Carborundum Co.) WHEELER. D. D. (W) Titanium Alloy Mfg. Div. National Lead Co. Ill 3rcadway, New York 5. V. Y WHEELER. Marvin Q. (G) Coca-Cola Co.. Engineering Dept. Drawer 1734. Atlanta I. Ga. WHEELER. William H. (31) 1721-A Aberdeen Rd. Baltimore J. Md. t Martin Co.) WHEELING STEEL CORP. (Ernest 3. Snyder) Steubenville South Plant Steubenville. Ohio WHERRY. Allen P. (El) 9652 Oakdale Rd.. Parma 29, Ohio (Hunter-Thomas Assoc.) WHITACRE, D. D. (R) Whiracre-Greer Fireproofing Co. Waynesburg. Ohio WHITACRE-GREER FIREPROOFING CO. (D. D. Whitacre) Waynesburg, Ohio WHITACRE. Maxwell L. (M) Carborundum Co.. Buffalo Ave. Niagara Falls, N. Y. WHITAKER. Fred A. (WI) 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. WHITE. David E. 1009 W. California. Urbana. III. WHITE. Frank L. (G) 12147 Manor, Detroit 4, Mich. (Ford Motor Co.) WHITE. George D. (B) 223 E. Drive: Oak Ridge. Tenn. (Union Carbide Nuclear Co.) WHITE. Harold E. (RFI) R. R. 6. "Windy Knoll," Butler, Pa. (Lava Crucible-Refractories Co.) Roster 121 WHITE. J. F. (3) 2016 Arrowood Dr , Cuvrinr.nf. 31, Oiviu (General Electric Co.) WHITE. John M. '.O'* Sperry Electronic Tube Di\. '.laincM iile. Fla. WHITE. Jonathan 5. (W* 1302 Singer PI. Wiikirsburg, Pittsburgh 21. Pa. (Stupnkoff Div., Carborundum Co.) WHITE. O'Mara lG) 642 Fairmont Ave.. Westfield. N. J. (Carborundum Co.) WHITEHEAD. Lelan.l E. Jf62 Simpson St.. Norfolk 13, Va. WHITESELL. Lysle E. (R) Wcllsviile. Mo. (Wellsville Fire Brick Co.) WHITFIELD. Robert E. (R) Chas. Taylor Sons Co.. 3ox S3 Annex Station. Cincinnati 14, Ohio WHITFORD. Robert F. (R; North American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14. Ohio WHITFORD, Wilham G- (DF) Box 38. Olympia Fields. III. (L'niveritv of Chicago) WHITING. Harvey W. Box 202.1 Lacona, N. V. WHITLEY, jack O. (Wi 24'M Princeton Ave. San Angeic. Texas (Monarch Tile Mfg.. Inc.) WHITNEY. lEarl J. iGJ) 222 Walnut St.. Corning. N. Y. (Corning Giass Works') WHITNEY. Eugene H. (R) Gladding. McBeau S: Co.. Mica, Wash. WHITNEY. John B. (E) 317 N. Bonner Ave., St. Matthews, Ky. (General Electric Co.) WHITSON. Ralph E. (W) Aluminum Co. ot America Box 300, Bauxite. Ark. WHITSON. Richard E.. Jr. fR) 703 Second Ave.. Farmvdle. Va, ( Kyanire Mining Corp.) WHITTAKER. Clyde M. (W) Box 960,'New Castle, Pa. (Universal-Rur.dle Corp.) WHITTAKER. G. Ward (W) L'.ucn Meeting Rd., Jen. Del. Bluebeil, Montgomery County. Pa. ( Universai-Rur.die Corp.) WHITTEMORE. J. W. (SFI) Virginia Polytechnic Institute Blacksburg, Virginia WHITTEMORE. O. J. (S) Vincent Clay Products Co. 615-19 State Bank Bldg. Fort Dodge. Iowa WHITTEMORE. O. J.. Jr. (RI) Norton Co., Worcester 6, Mass. WHITTEMORE. Russell G.; (G) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. WIBERG. Orjan AB Svenslca Metailverken Va>teras. Sweden WICKE. Warner C. (W) General Electric Co.. One River Rd. Schenectady. N. Y. WICKS. John Slrnison (E) Fairground Rd.. R. R. 1 Fern Creek. Ky. (General Electric Co.) WIDGER. G. Thomas (W) 3811 \\ Walnut. Kansas City 16, Mo. iTierra Royal Potteries. Inc.) WIECAND. Frank R. <WJ) I16-A Haddon Hills Apts. Haddonrield. N. J. < Universal-Rundle Corp.) WIENS. 3radley E. (G) Owens-Illinois 1700 N. Westwood Ave. Toledo 7,,|Ohio Vol. :JG, No. 10 (10.17) WIKER. R::r.a:d M. (G) 2G6 Rar.d Ave.. Pa-.r.ieu Past, N. Y. (Corning Glass Works) WILAX5NY. Harolii tGi 6'.* Meaiov Brook. Corning. N. Y. *. Cuming Glass Works i WILCOX. Da-, id L. 3o.x i27. Alfred. N. V. WILCCX. Herman G. (R) 3C0 Rcss Ave., Pittsburgh 21. ?a. ( Harbiscn-Waiker Refractories Co.) WILCOX. James W. (S) Alliance Clay Product Co. Alliance. Ohio WILCOX. Paul D. 59 S. Grant St., Midvaie, Utah WILDER, David R. 1212 S. Third St.. Ames, Iowa WILKE, William P., Ill (M) Hammond Lead Products, Inc. 52J1 Hohman Ave., Box 912 Hammond, Ind. WILKERSOX. Robert L. (W) Crescent Concrete Products Corp. 2933 Daupnine St., New Orleans, La. WILKES. Gordon B. (RF) Box 131. East Orleans, Mass. WILKINS. E. D. Kaiser Bauxite Co. Sour Tree, Jamaica. 3. W. I. WILKINS. Ian Hugh (W) 325 Old Quarry Rd. Kingston, Or.?., Canada (Frontenac Floor & Wall Tile. Ltd.) WILKINS. William W. (M) Ferro Corp., 5309 5- District Blvd. Los Angeles. Calif. WILLEMS. H. W. V. (G) IS 13 Pacific Ave.. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) WILLENBROCK. Allen W. (W) Scangl Pottery Co. Box 2030, Trenton 7. N. J. WILLIAMS^ Alan B. (RI) ICS McCarthy Dr., Augusta. Ga. (Babcock & Wilcox Co.) WILLIAMS. Arthur E. (G) 1214 Eighth St.. Moundsville, W. V'a. (Fostoria Giass Co.) WILLIAMS. Charles N. 311 Fairlawn Dr., Urbana. III. WILLIAMS. Clyde (RF) Batteile Memorial Institute SOS King Ave., Columbus 1, Ohio WILLIAMS. George r. (G) Owens-Illinois, Technical Center 1700 N. Westwood Ave.. Toledo I. Ohio WILLIAMS. Gordon R. Fabrica Nacional de Porceiana S. A. Calle 1-a Maracav, Edo-Aragua. Venezuela WILLIAMS. Harry M. (WI) Insulator Dept.. General Electric Co. -Box 57. Baltimore 3. Md. WILLIAMS. John A. (W) Box 250. Trenton 2, N. J. (Mitcheil-Bisseil 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. (El) 3006 Adams Ave.. Evansville, Ind. (Whirlpool Corp.) WILLIAMS, Robert A.. Jr. (\V) American Encaustic Tiling Co.. Inc. 1000 N. Cannon Ave.. Lansdale. Pa. WILLIAMS. Robert B. (W) 1067 Dawn St. Signal Mountain, Tenn. (American Lava Corp.) WILLIAMS. Robert E. 1300 Crosby Rd., Carrollton. Texas WILLIAMS. Robert M. (RI) 5309 Royal Oak Ave.. 3alumcre, Md. < General Ref factories Co.) WILLIAMS. Waiter E. (WE) New Castle Refractories Co. New Castle. Pa. WILLIAMS. Willi, W R ; Aluminum Cu. of America Box 3"U. Bauxite. Ark. WILLIS. James 3. E: 20V Timmmirr. Rd.. . iinonimn. Mil. < Pemco C jrp. > WILLIS. James L. (R: Kaiser Aluminum 3: Chemical Saies. Ir.c. 3 Gateway Center, Pittsburgh 22. Pa. WILLMORE, Tracy A. (R) 1113 W. Illinois St., Urbana, III. (University of Illinois) WILLS. Robert E. (R) Box 220. Coal City, Illinois (Illinois Clay Products) WILSON. Sonum S., Jr. 2914 Niagara Ave. Niagara Fails. N. Y. WILSON. Calvin S. (G) Libbey Giass Div., Owens-Illinios Ash St. 4 Wheeling R.R. Toledo Ohio WILSON, Charles L. <S) 217 N. Meridian St., Brazil. Ind. (American Vitrified Products Co.) WILSON. Clifford F. ( R) Kerr Manufacturing Co. 6031 12th Sc.. Detroit. Mich. WILSON. George (R) 131 Edison Ave., New Castle, Pa. (New Castle Refractories Co.) WILSON. Glenn I. Box 519. Sapulpa. OkI.i. WILSON, Homer W. <S> Delaware Clay Co. Box 352. Delaware. Ohio WILSON. Hugh H.. Jr. CBI) Clemson College. Clin Hall Clemson. S. C. WILSON. Maurice S. (R) 14 Reynolds Dr.. Wallingford, C-.mn. (American Refractories 4 Crucible Corp.) WILSON. Robert Charles (WI) 791 Wedgewood Dr.. Apt. 3 Columbus 4. Ohio (Ohio State University Engineering Experiment Station i WILSON. Robert F. (G) Durakool, Inc. 1010 N Main St., Elkhart. Ind. WILSON. Roger E. fR) 101 Coilinwood Blvd., Fremont. Ohio (Basic. Inc.) WINBURN. H. L. (S) Box 1369. Little Rock. Ark. fWinbum Tile Mfg. Co.) WINCHELL. Richard (Rl 1314 Center St.. Pittsburgh 21. Pa. (Westinghou.se Electric Corp., Atomic Power Dept.) W1NEMILLER. William r. (R) 11 Ardmore Road. Worcester 9, Mass. . (Norton Co.) WTNGF.RTER. Donald 3. (R) 254 Oxford Ave.. Fair Haven. X. J. (Johns-Manville Corp.) WINSHIP. Lee C (G) Syivania Electric Products, Inc. Emporium. Pa. WINTER. Aniuta Institut d'oprique Theorique et Appliquee, 3, Bid Pasteur Paris 03*) France WINTER. Cary E. 324 Forest Rd.. Davenport. Towa WiRTH. David G.. Jr. 1108 Clara Ave., Joiiet. III. WISCONSIN PORCELAIN CO. (L. A. Stohl) 120 Lincoln St. Sun Prairie, Wise. WISE. Douglas 5 Irving St., Alden, N. Y. Roster 123 n I5E. L. G. (B) E. I. du Pont de Nemours ** Co., Inc. Chemical Dept., Experimental Sra. Wilmington, Del. ISEMAX, Claude r. (S) West Virginia Brick Co. 3ox 10/1, Charleston, W. Va. ISHOSKI. I. Stanley (R) Industrial Heating U00 L'nion Trust Bldg. Pittsburgh 19. Pa. ISS. J. E. (MFI) 13J9 Lincoln Rd.. Columbus 12, Ohio (Consultant) ITMER, Frank (G) 612 W. Main Sc., Woodville, Ohio (Ohio Lime Co.) ITSCHEY, Ray A. (R) A. P. Green Fire Brick Co. Mexico, Mo. ITTE. Kurt Tholauerstr. 30 Marktredwitz/Oberrranken. Germany ( Kera-Sud iSchwarzenbach) ITTER, Raymond B. Edificio Gaiipan, A-5-C, Av., Miranda El Rosal, Caracas, Venezuela (Fabrica de Productos Ceramicos) ITUCKI. Robert M. (G) Aeropnysics Development Corp. Box 689. Santa Barbara. Calif. ITZEMA.XX. A. W. (W) Eljer Co. Div. Murray Corp. of America Ford City. Pa. OHLFORT. Sam W. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway Ave. Toledo 5. Ohio OLD. T. (W) Smith & Stone. Ltd. Georgetown. Ont.. Canada OLFE.YSPERGER. R. E. (R) 231 Martin Ave.. Pittsburgh 16. Pa. (Tom 3rown Industrial Suooly Co.) DLKODOFF; Vladimir E. (B) Carborundum Co. Research & Deveiooment Div. Niagara Falls. N. Y. DMELDORPH. R. C. (G) 3 Abbott S:., R. R.. Manville. R. I. (Owens-Corning Fiberglas Corp.) DNC. Y Y. ,'V' c/o Mrs. D. D. Yang 5741 S. Kenwood Ave.. Chicago 37. 111. 9NGSOREDJO, Rasmadji Balai Penjeiidikan Keramik (Ceramic Institute) Djl. Raya Timur 322 Bandung, Indonesia DOD. Clifton E. (W) 512 E. Ellen. Fenton. Mich. (A C Spark Plug Div., General Motors Corp.) DOD, Kenneth T. (R) 102 Grace 3Ivd.. Painted Post. N. Y. (Coming Glass Works) DOD, Llewellyn, Jr. (S) Carrington Woods. R. R. 4, Box 209 Milledgeville, Ga. (Oconee Clay Products Co.) DOD. Russell K. (WI) 3900 E. California St. Pasadena 10. Calif. (Wallace China Co.. Ltd.) DODBRIDGE^ Thomas C. 38 Stirling Rd. Hayes. Middlesex. England (British Bath Co. Ltd.) DODRUFF. Calvert M. (W) .American Ncpheline Ltd. Xephton via Lakeneld. Ont.. Canada DODRUFF. Ernest W. (R) Refractory Products Co. 910 Custer Ave., Evanston. 111. DODS. C. J. (X) Philips Electronics. Inc. Instruments Div. 7S0 S. Fulton Ave. Mount Vernon, N. Y. l. 36, No. 10 (1957) SVOODS, Huber: (B) Portland Cement Assn. 33 W. Grand Ave.. Chicago 10. III. WOODS. William J. (M) Pennsylvania Glass Sand Corp. Box 627, Lewistown, Pa. WOODS. William J., Jr. i M) Pennsylvania Pulverizing Co. Two Gateway Center Pittsburgh 22, Pa. WOODVILLE LIME PRODUCTS CO. (J. Robert Coweil. Jr.) 2140 Jeiterson Ave.. Toledo 2, Ohio WOODWARD. Roger (W) 200 Alaimo Dr.. Rochester 10, X. Y. (Victor Insulators Div. I-T-E Circuit 3rcaker Co.) WOOLDRIDGE, Morris L. (R) Owens-Coming Fiberglas Corp. Research Center. Newark. Ohio WOOLEY, Seward E. (RI) 18 E. Brown St.. Somerville. X. J. (Johns-Manville Research Center) WOOTEN. Richard M. (G) J913 Whitland Ave., Nashville. Tenn. (Ford Motor Co.) WORCESTER. R. L. (S) Purington Brick Co. Box 110. Galesburg, III. WORCESTER ROYAL PORCELAIN CO., LTD. (Joseph F. Gimson) Royal Porcelain Works Worcester. England WORCESTER. W. G. (XFI) 720 Sask. Crescent E. Saskatoon, Sask., Canada WORK. Lincoln T. (M) 15 X. Crescent, Maplewood, X. J. (Consultant) WRIGHT. E. P. (WI) Taylor. Smith Sc Taylor Co. Chester. \V. Va. WRIGHT. J. E. Messrs. A. G. Hackney Sc Co.. Ltd. Fairrield Pottery, Hanley Stoke-on-Trent. England WRIGHT. John C. 110 Laughiin Ave. Welland, Ont.. Canada WRIGHT. J. W. (GO 2703 Densmore Dr.. Toledo 6, Ohio 'OwervMllincis) WRIGHT. Louis H. Box 2904, Clemson. S. C. WUELLNER. Joseph F. (E) 1602 Galion Ave., Cleveland 9, Ohio (Ferro Corp.) WURTSBAUGH. C. G. (W) Glostex Chemicals. Inc. 3056 3andini Blvd. Los Angeles 23. Calif. WUSKE. H. H. (S> 414 Case PI.. N. W.. Canton, Ohio . (Metropolitan Brick. Inc.) WYATT. Bradley W. (S) Pacific Clay Products 9500 S. Norwalk Blvd. Los Nietos, Calif. WYCKOFF. 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. (General Refractories Co.) WYSONG. Charles F. (B) 425 Gay St., Marietta. Ga. (Georgia Institute of Technology) WYSOR, D. C. (R) General Chemical Division Allied Chemical Dye Corp. 40 Rector St., New York 6. N. Y. Y YAMAGUCH1. Mitsuo i.W) 72 Oakwood Ave.. Arlington. X. J. (Noritake Trading Corp.) YAMAMOTO. Hideo -Gi 305 W. 39th St.. New York 24. N. Y. (Asahi Glass Co.. L:d.) YAMASAKI, Kazuo Chemical Institute. Science Faculty Nagoya University Chikusa. Nagova. Japan yamalchi. t. Tokyo Xogyo Daigaku (Tokyo Institute of Technology) Ookayama. Meguro-Ku, Tokyo, Japan YARTE, Andrew A. (.W) Productos Ceramicos, S. A. Apartado 486. Monterrey, X. L.f Mexico YARTE, Eugene A. (W) Industrias Procesa, Apartado 4g6 Monterrey. X. L. Mexico YATES, Donaid X., Jr. 8-A Daniel Dr.. Clemson, S. C. YAVORSKY. Paul J. (B) McDanel Refractory Porcelain Co. Beaver Fails. Pa. YAWITZ, Murray (G) Fish-Schurman Corp. 70 Portman Rd., New Rocaeite, N. Y. YEATER, Roy G. (G) Fostoria Glass Co., Moundsville, W. Va. YEXCXEX. Arthur J. R. E. L. Yencken -5c Co. Pty. Ltd. 58-72 Queen's Bridge St. South Melbourne. Vic., Australia YERRICK. William B. (R) Allegheny Ludlum Steel Corp. Brackenridge, Pa. YOCOM, Ray A. (GUnited Clay Mines Corp. 101 Oakland St.. Trenton, N. J. YOSHIKI, Bumpei 204 Tsurumi-cho. Tsurumi-ku Yokohama. Japan (Asahi Glass Co.) YOUMANS, Robert M. Box 4264. Georgia Tech., Atlanta. Ga. YOUNG, David A. (S) Cloud Ceramics. Concordia. Xaasaj YOUNG, George F. (G) Detruth Glass Works. Inc., 3ox 629 Parkerrburz. W. Va. YOUNG. Howard S. i B) R. R. 1. Chadds Ford. Pa. (E. I du Pont de Nemours u Co.. Inc.) YOUNG. James John G. Stein Sc Co. Ltd. Manuei Works. Linlithgow. Scotland YOUNG, James E. (S) Structural Clay Products Research Foundation, Geneva. 111. YOUNG. John C. (G) Portuguese Bend Club Portuguese Bend. Calif. (Hayward Scientific Glass Corp.) YOUNG, Lloyd G. (C) Coming 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 YOUNG. Vincent M. (G) American Optical Co. Southbridge. Mass. YOUNG, Willard G. (WI) Case Manufacturing Corp. 1000 W. Pine St.. Robinson, IU. YOUNG. W. O. (WI) 6 Livingston St.. Honeoye Fails. N. Y. (Victor Insulators Div., I-T-E Circuit Breaker Co.) YOUNGBLOOD. Charles J., Jr. (G) Mississippi Glass Co. 88 Angelica St.. St. Louis 7. Mo. YOUNT. Richard V. (G) C. Tennant Sons St Co. 100 Park Ave.. New York 17. N. Y. Roster 125 .UTZEY, Marvin 0. ( D) Fostoria Class Co.. L200 First St. Moumisviile, W. Va. 2 .MIN. William A. l\V.i u'J Glen wood Dr. Xct Shrewsbury, N\ J. (Atlantic Tile Msg. Co.) AHNISER. Geo. B. (W) Shenango China, Inc., New Castle. Pa. ANOWIAK, Peter P. tS) 515 S. E. 21st St. Mineral Wells, Texas (Texeraruics Inc.) Al*l*"E. Richard C. (W) 162 Penrield St., romotia, Calif. (Pomona Tile Mfg. Co.) ARBO, George (G) 88 Meirose1 St., Vineland, X. J. (Kimble Glass Co.) AVIS. Lewis (W) 11012 S. Chanera, Inglewood. Calif. (H. F. Coors Co.. Inc.) AWISTOWSKI. Arthur V. (\YT) 904 Ohio Ave., Trenton S. X. J. EHRLAUT. Herbert A. R. (R) Calcium Ainntinatc Cement Ci*rj. 104 E. 40th St.. New York !S. X. V. EILLER, Irwin F. (M) 150 Mason ^Dr. Manhasset. "Long Island. X. Y. (B. F. Orakenfeld 8: Co., Inc.) ELSEL. Eva S. (D) South Mountain Rd. Xew City. Rockland Co.. X. Y. {Industrial i Designer) ZELLER CORP. I R. E. Costello) Fort Wayne RJ., Dehance, Ohio ZFRFOSS. Samuei (BE) Mineral Products Div. National Bureau of Standards Washington 25, D. C. ZiCKEFOOSE. Ellis J. (R) Gridin Wheel Co. 445 X. Sacramento 3!vd. Chicago 12. 111. ZIEGFELD. Robert L. (M) Lead Industries Assn. 60 E. 42nd St., New York 17, X. Y. Z1EGLE, Glenn D. 409pj W. University, Champaign, 111. ZIMAR, Frank (G) Corning Glass Works Main Lab., Corning, X. Y. ZIMMER. David C. (WFI) 513 Harding Rd.. Zanesville, Ohio (Nelson McCoy Pottery Co.) ZIMMERMAN, Joe A. 1120 Downey St., Apt. 1, Radford, Va. ZIMMERMAN. Philip D. , 611 W. Fayette Ave., Effingham, 111. ZIMMERMAN, William F. 3836 McNicholas St. Cincinnati 36, Ohio (General Electric Co., Gas Turbine Div.) (B) ZINK. George H. (El) A. 0. Smith Corp. 3533 N. 27th, Milwaukee 16, Wise. ZINK, Harold F. (G) Owens-Illinois, 1700 X. Westwood Ave. Toledo 1, Ohio ZLOCX. Evan ?. (G) I-T-E Circuit Breaker Co. 501 E. Erie Ave., Philadelphia 2 4, Pa. ZLOTNICK. Herbert (BJ) ."902 Bay Pky.. Brooklyn, N. Y. Mneon Corp.) Zi.L'PNO. John E. IB) Walker St.. Philadelphia. Pa. i General Electric Co.) ZN RIMER, joe'. E. (31) i.l Donna Rd.. Framingham, Mass. 'Raytheon M:g. Co.) ZORZI. Eugene R. (M) C. Tennant, ions & Co.. 100 I'ark Ave. New York 17, N. Y. ZUDNAK. Stephen J. IW) Box 1599, Trenton. N. J. (General Porcelain Co.) ZUMWALT. Donald A. (\V) 10519 S. Kibbee, Whittier, Calif. (Collins Radio Co.) ZUN1CX. Michael J. (B) 2740 S. 111th St. West Allis 19. Wise. (General Electric Co.) ZVANUT. Albert J. (B) Lincoln Electric Co. 22301 St. Clair Ave., Box 2115 Cleveland, Ohio ZVANUT. Frank J. (MI) 14522 Bayes Ave., Lakewood, Ghio (Godfrey L. Calxn. Inc.) ZWERMANN, Carl H. (BF) 806 W. Main St.. Robinson, III. ZWETSCH, Artur Vlileroy & Both Mettlach/Saar. Germany Addenda -BEKS. Koiinlrl R, Iowa State College 2298 Frilev 1 Hail. Ames. Iowa -TEMOSE. Earl R. Box 263. Pleasant Gap, Pa. *THUR. Reuben B.. Jr. 1 Ofi8 x/% Park' Dr., Raleigh. X. C. VUER. Richard F. Box 6.15. \lfred. X. Y. (OWN. Fielding (X) Sprague Electric Co. North Adams. Mass. JRNS. Paul E:-(W) R. R. 5. Gracetand Rd. New Castle. 4Pa. (Vitro Manufacturing Co.) kPORALI. Ronald 912 W. College Ave. State College. Pa. SEK. I-awrence J. 7 Svcamore St.. Natrona. Pa. iLOTT. Charles R. 404 S. Baser. Urhana. 111. INK. William j. Missouri School of Mines Dormitory Rm. 314. Holla. Mo. 'EHN. August 'F. 2122 Lincoln Way, Ames. Iowa l. :}fi, NTo. 10 (1057) DRUMMOND. W. Wendell (G) 4*11 Winnenuah Rd. Madison 4. Wis. ( Bjorksten Research Lab.) DUNSMORE. Gordon X. 120 Ninth St.. Philiosburg. Ta. FENTON ART GLASS CO. (Frank M. Fenton) Williamstnwn. W. Va. I'OLWELI.. Marjorie Box 488. Alfred. N. Y. GERSCH. Herbert (S) 9800 Oakwood Dr., Twinsburg. Ohio (Horizons. Inc.) GRIFFIN. Margaret Box 488. Alfred. N. Y. KEBI.ER. Richard W. fB) Linde Co.. Speedu-ay Lah. Box 3227. Indianapolis 24. Ind. KEENEY. Bert O. (S) Kansas State Teachers College 1910 S. Locust. Pittsburg. Kans. KITCHEN. Alan J. 95 E. Main St.. Angelica. N. Y. KOWALCZYK. Robert A. 227 W. Beaver Ave Stale College. Pa. MILLER. Kenneth W. ( RJ) Brush Beryllium Co. 4.101 Perkins Ave.. Cleveland J. Ohio .VAGAN. Raymond M. Box 767. Alfred. N. Y. VESTER. Ralph Delta L'psiloo, State College. Pa. REES. Glenn H. 41 Hilltop Trailer Park State College. Pa. RESTREPO. Ramiro Box 1261. Alfred. V. Y. RII.EY. William C. (W) Bartelle Memorial Institute 505 King Ave.. Columbus 1. Ohio SALES. Arthur T. Box 2996. Georgia Tech. Sta. Atlanta. Ga. SCHULTZ. Donald J. 120 Heister St.. State College. Pa. SUNDY. George J. 95 N. Mill St.. West Nanticoke. Pa. TISDALE. Richard L. Box 1265. Alfred. N. Y. VAN HORN. John H. 1102 W. Illinois. Urbana. 111. VAN RAVESTEIN. John H. 236 "A" St.. CTemson. S. C. Roster 127