Document 0gBKjbMBD1XgVM1mQEg2pvxYk

FILE NAME: Kohler (KOH) DATE: 1955 DOC#: KOH012 DOCUMENT DESCRIPTION: Roster - American Ceramic Society The American C eram ic ''o ciety February 15,1993 ! hereby certify that the attached copies o f Am erican Ceram ic Society Bulletin, Volum e 3 4 ,1 9 5 5 , are true and accurate copies, which are maintained in the normal course o f business at the American Ceramic Society, 735 Ceramic Place, 'V'stcrville, Ohio 43081. r . f ristine Schnitzer : id net Manager Ceramic Information Center 735 Ceram ic Place Westerville, O hio 43081-8720 614 890 4700 TWX: 7101109409 Membership Roster The American Ceramic Society This Roster of members is published only for the use of members of The American Ceramic Society. Listings are in alphabetical , r. A separate R oster for the N ation al In stitu te of Ceramic Engineers, show ing grades of m em bership, is on pages R-101 to R-105 .is issue. N ew m em bers received to o la te to be included are listed in the Addenda on page R -99. These listings give th e member's preferred mailing address. W here this is not his business address his com pany connection is shown ;i,.rcntheses. D iv isio n s and other S o ciety affiliations are indicated in parentheses following each nam e, in accordance w ith th e code .11 below. T h e absence of a n y such designation indicates th a t the member is from outside th e U n ited S ta tes or a stu d en t m em ber, '! her of which h as D ivision affiliation. B--Basic Science Division D-- Design Division E--Enamel Division G-- G lass D ivision M -- M aterials and Equipment Division R -- Refractories Division S-- Structural Clay Products Division W-- W hite Wares Division X -- N o D ivision affiliation F-- Fellow of T he American Ceramic Society J-- Junior Member I-- National In stitu te of Ceramic Engineers A KEY, R. G. (G) General Refractories Co. 1520 Locust St.. Philadelphia 2, Pa. OTT, Gordon H. lock Enamel (P ty .) Ltd., Box 77 Industria, T V L Union of South Africa ., Tosio 1001, Kami-ikcgami-cho, Ota-ku Tokyo, Japan (Tokyo Shibaura Electric Co., Ltd.) IlNETHY, Lonnie L. (I) \ rgonne National Lab. 122-2 Metallurgy !lox 299, Lemont, 111. UGDON POTTERIES. INC. J. M. Lewis) 801 N . Main St. \bingdon, 111. AlMSON, Isaac Av. Copaeabana, 9S9-Apto. 902 Kio de Janeiro, Brazil Klabin Irmaos & Cia.) ILLE, A. Villa dan Miguel Brewery Glass Factory 132 Aviles, Manila, Philippines 1UNTIUS, Oliver E. (R) iattelle Memorial Institute SOS King Ave., Columbus 1, Ohio UFF, Charles E. (W ) 1139 Balias Rd., Kirkwood 22, Mo. (Certain-Teed Products Corp.) K BRICK CO. (W . A. Barber, Jr.) Box 425 Fort Worth, Texas SPARK PLUG DIV,, GENERAL MOTORS CORP. (Karl Schwartzwalder) Flint 2, Mich. AMS CLAY PRODUCTS CO. (Tames A. Cunningham) Box 226 Martinsville, Ind. IM S, Earl E. (W ) Mansfield Sanitary Pottery, Inc. Ferrysville, Ohio VMS. Edward M. (S ) Murray Tile Co., Inc. f loverport, Kv. MS, Milton (G ) i !9 W . Streicher St.. Toledo 8, Ohio I.ibbey-Owens-Ford Glass Co.) AMS. P. Bruce (G) oming Glass Works csearch and Development Gorning, N . Y. MS. S. L. (G) seph E. Seagram & Sons, Inc. venth St. Rd., Louisville 1, Ky, V.STON FL A T G LASS D IV ., OLLAND GLASS CO. >x 631, Clarksburg, W. Va. ! 34, No. 10 (1955) ADCOCK, Albert S. (W I) American Radiator & Standard Sanitary Corp., 6920 Franklin Ave. New Orleans 22, La. ADCOCK, Lawrence W., Jr. (W ) 1411 Cranover St., Lyndhurst, Ohio (Clevite Corp.) ADDERLEY, James R. 42 Church St., Brierlcy Hill S. Stafford. England ADEL CLAY PRODUCTS CO. (Merton T . Straight) 101 Ashworth Rd. Box 85, West Des Moines. Ia. ADERH OLD, George H. (W ) Saxonburg Ceramics, Box 100 Saxonburg, Pa. AFFLERBACH, Harry (E) R.R. 4, Frankfort, Ind. (Ingram-Richardson, Inc.) . AGARWAL, Gopal Mohan Box 1039, Alfred, N. Y. AGNEW , James D. (S) Broad River Brick Co.. Box 681 Gaffney, S . C. AGRON, Albert M. (E) Pfaudler Co., Taylor St.. Elyria, Ohio AGUILAR, L. M. (E) Ferro Enamel de Mexico, S. A. Calle Oriente 171, No. 450 Mexico 14, D. F,, Mexico AHEARN, V. P. (M) National Industrial Sand Assn. 1325 E St., N . W,, Washington 4. D. C. AKAM, J. W . (S) Natco Clay Products, Ltd Aldershot, Ont., Canada AKMORAN, Miss Huban 1, Cobankizi Sokak, Buyukdcre Istanbul, Turkey (Turkish Glass Works). AK RO N PORCELAIN CO. (F . W. Butler) Akron 14, Ohio ALBERS-SCHOENBERG, Ernst (W ) I3-B-3 Redfield Village, Metuchen, N . J. (General Ceramics Corp.) ALBERT, Joseph (W ) Albert Pottery, Chamblee, Ga. ALBERTALLI, Stephen L. (GJ) Coming Glass Works, Harrodsburg, Ky. ALBERY, D. F. (SFI) 1433 23rd St. N . W ., Canton 9, Ohio (Stark Ceramics, Inc.) ALBRECHT, Ernst Keramische Fachschule Hoehr-Grenzhausen/b Koblenz, Germany ALCOCK, Ronald H. "Ferrum" Espaa 402-600, Avellaneda Buenos Aires, Argentina ( Ferrum,_L. A. de Ceramics y Mctalurgia) ALD EN, Charles E. (G) 3427 Heather Downs Blvd. Toledo 14, Ohio (Kimble Glass Co.) ALE LU IA , Joao C. F. Av. Araujo E. Silva 59 Aveiro, Portugal (Fabricas Aleluia) A LE N IU S, Carl Axel A. Ahlstrdm Oy, Iittala Glasbruk Iittala, Finland ALEXANDER, A. E. (G) Tiffany & Co., 727 Fifth Ave. New York 22, N. Y. ALEX A N D E R , John B. XM) Southwestern Portland Cement Co. 1034 W ilshire Blvd. Los Angeles 17, Calif. ALEXANDER, John M. (M I) 2376 Hamilton Ave. North Bellmore, N . Y. (Swindell-Dressler Corp.) ALEXANDER, R. B. (W ) National Tile & M fg. Co. 1200 E. 26th St., Anderson, Ind. ALGEMENE VERENIGING VOOR De NEDERLANDSE AARDEWERK EN GLAS INDUSTRIE (H . G. P. Kolfschoten) Haagweg 139, Rijswijk, Netherlands ALLEN, Alfred W . (R) Ceramic Engineering Dept. University of Illinois, Urbana, III. ALLEN, Ben (G) Coming Glass Works, Coming, N , Y. A LL EN , Ralph (W ) 1234 Paddock H ills Ave. Cincinnati 29, Ohio (Briggs Mfg. Co.) ALLEN, Richard L. (R l) E. J. Lavino & Co., Box 365 Newark, Calif. ALLEN, Robert G. (R ) Robert G- Allen Co., Box 110 Mecbanicville, N. Y . ALLEN, Walter C. (R) U . S . Steel Corp. Research Lab. Lincoln Highway, Kearny, N. J. ALLEN, Wan-en W ,, Jr. (S ) Hydraulic-Press Brick Co. South Park, Ohio ALLIANCE W ARE, L T D . (R. E. Strain) Box 550, Vancouver, B. C,, Canada ALLIEGRO, Richard A. (RJ) 33-05 150th St., Flushing 54, N . Y. ALLISON, Adrian G. (R ) Battellc Memorial Institute 505 King Ave.. Columbus 1, Ohio ALLMAN, Orin H . (G) Kimble Glass Co. Owens-Illinois Technical Center 1700 N. Westwood Ave., Toledo 1, Ohio R oster 1 A L I, L.C&IK ti. (.SU 547 Simon St., Hayward, Calif. (Kraftile Co.) ALTMANN, Beiton G. (B ) 16700 Cypress Way. Los Gatos. Calif. (Kaiser Aluminum & Chemical Corp.) ALTON BRICK CO. (Eben Rodgers, Jr.) Box 394, Alton, 111, ALTSCHULER, Otto (W ) Hawthorne Ave-, R. R. 1, Langborne, Pa. (Wenczel Tile Co.) ALUMINUM CO. OF AMERICA (H . P. Bonebrake) 1501 Alcoa Bldg. Pittsburgh 19, Pa. AMBROSONE, Joseph P. (G) 215 Cedar St., Corning, N. Y. (Corning Glass Works) AMERICAN COLLOID CO. (Paul Bechtner) Merchandise Mart Plaza, Rm. 813 Chicago 54, 111. AMERICAN ENCAUSTIC TILING C O , INC. (Robert A. Williams, Jr.) 1000 N . Cannon A v e, Lansdale, Pa. AMERICAN GAS ASSOCIATION (C. G. Segeler) 420 Lexington Ave. . New York 17, N . Y. AMERICAN LAVA CORP. (R . A- McGinnis) Cherokee Blvd. & Mfgrs. Rd. Chattanooga 5, Tenn. AMERICAN N EPH ELIN E LTD. (H . R. Deeth) Lakefield, O n t, Canada AMERICAN OPTICAL CO. (A . H. Bennett) Research Center, Southbridge, Mass. AMERICAN PORCELAIN ENAMEL CO. (Robert Long) 1285 Keating Ave. Muskegon 36, Mich. AMERICAN POTASH & CHEMICAL CORP. (R. M. Curts) 99 Park A v e, New York, N . Y. \M ERICAN RADIATOR & STANDARD SANITARY CORP. (James S. Goodman) 834 E. Broadway Louisville 4, Ky. AMERICAN SMELTING & R E F IN IN G CO. (L. G. Matthews) 120 Broadway, New York 5, N. Y. AMERICAN W INDOW GLASS CO. (A. S. Crandon) 9 West Park Way Pittsburgh 12, Pa. AMES. R. N. (R I) 10718 S. Morgan S t , Chicago 43, 111. (U . S. Steel Corp.) AMES, Robert G. (W ) 69 Jefferson A v e , Cresskill, N . J. (B. G. Corp.) AMIN, R. B. Alembic Chemical Works C o, Ltd. P. O. Chemical Industries Baroda 3, India AMMERMAN, J. H. (RI) 202 Scribner, DuBois, Pa. (North American Refractories Co.) AM RHEIN, Alan G , Box 16S9 Georgia Institute of Technology Atlanta, Ga. ANCHOR HOCKING GLASS CORP. (William V. Fisher) Lancaster, Ohio ANCIZAR-SORDO, Jorge Laboratorio Quimico Nacional Ministerio de Minas y Petroleos Apartado 2577, Bogota, Colombia ANDERSON, Harlan U. 1424 Federal Way, Salt Lake City, Utah ANDERSON, Harry L. (R I) Republic Steel Corp. Youngstown 1, Ohio DERSON. Herbert H. (G) 401 N. Main S t , Port Allegany, Pa. (Pittsburgh-Coming Corp.) ANDERSON, Orson L. (G) Bell Telephone Labs, Murray Hill, N. J. 2 Roster AMDLKSUN, K. E. (W ) Robertson Mfg. C o , Box 848 Trenton S, N. J. ANDERSON, R. H. (S) Robinson Clay Product C o, Box 345 Dover, Ohio ANDERSON, Robert E. (W ) Iroquois China C o , 2320 Milton Ave. Syracuse 9, N. Y. ANDERSON, Robert R. R. R. 1, Box 112, Stanwood, Wash. ANDERSO N, Rupert C. (W ) Valley View, R. R. 10 New Brighton, Pa. (Mayer China Co.) ANDERSON, Scott (G) Anderson Physical Laboratory 609 S. Sixth S t , Champaign, III. ANDERSON, William B. (E) Titanium Pigment Corp., I l l Broadway New York 6, N. Y. ANDREASEN, A. H. M. (Honorary) Oster Voldgade 10 Copenhagen K , Denmark (Royal Danish Technical University) ANDREW S, Andrew I. (EFI) University of Illinois 204 Ceramics B ldg, Urbana, 111. ANDREW S, Clifford M. Ferro Enamel S. A , Caixa Postal 2948 Sao Paulo, Brazil ANDREW S, Ray (G) B. F. Drakenfeld & C o, Inc. Box 519, Washington, Pa. A N N IS, Aldon P. (S ) 319 Court, Ellsworth, Kans. ANTAKI, Emile Ferrum S. A. de Ceramica & Metalurgia Espaa 402/600, Avellaneda Buenos Aires, Argentina ANTHONY, Benjamin F. (R) Ferro Engineering Co. 1400 Hanna Bldg, Cleveland 15, Ohio ANTHONY, George H . (R) 41 Marion D r , Poland, Ohio (Youngstown Sheet & Tube Co.) ANW YL, Robert H . (S ) Box 158, Stratton, Ohio (Toronto Fire Brick Co.) AO, Takeo No. 11 1-chome Dairyo-Machi Sumiyoshi, Osaka, Japan (Osaka University) APT, Elmer E. (S) A. C. Ochs Brick & Tile Co. Springfield, Minn. ARANGO, G- Botero Balboa 63-13, Medellin, Colombia (Cristalcria Peldar S. A.) , ARCHBOLD, Walter H , Jr. (MI) 123 Sm allwood D r, Snyder 21, N . Y . (Electro Refractories & Abrasives Corp.) ARCHIBALD, W. A. British Iron & Steel Research Assn. 140 Battersea Park Rd. London, S. W. 11, England ARCHIE, Chad L. (S) Archie Structural Products Co. Box 312, Corinth, Miss. ARCHIE, Chad L,, Jr. (SJ) Archie Structural Products Co. Box 312, Corinth, Miss. ARENSBERG, Francis L. (R) Vesuvius Crucible C o, Box 8275 Swissvale, Pittsburgh 18, Pa. d'ARGENTEUIL, Comte L. de Meeus Socit Cramique Hoge Barakkenstraat 6 Maastricht, Netherlands ARKETEX CERAMIC CORP. (George W. Shoemaker) 6 N . Walnut S t , Brazil. Ind. ARMCO STEEL CORP. (R. S. Bums) Research Library, Middletown, Ohio ARMISTEAD, W. H. (G) 65 E. First S t , Coming, N. Y. (Corning Glass Works) ARM STRONG CORK CO. (E . C. Emanuel) Research 4 Development Cemer Lancaster, Pa. ARMSTRONG. Leland R. (RI) 27 Morgan A ve, Washington, pa (Findlay Clay Products Co.) ' I ARNOLD, Howard C. (EFI) 76 Standish B lvd, Pittsburgh 28 p (Federal Enameling & Stamping ' r . \ ARNOLD, Robert M. (W ) 0) Arnold Engineering Co, Marenen ARNOLD, Russell E. (SF) 8 ' 111 Box E, E. Akron Station, Akron 5 ru(Robinson Clay Product Co) ' ARNOLD, Thomas M. (W I) Red Wing Potteries, Inc. Red Wing, Minn. ARRANCE, Frank C. (W I) Coors Porcelain C o, 2705 Lamar e Denver 14, Colo. * ARRAN DALE, Roy S. (G) Thatcher Glass Mfg. Co, Inc. 1901 Grand Central A ve, Elmira N v ARRAS, George (E ) ' Y Quadrangle Mfg. C o, 32 S. Peoria 3. Chicago 7, 111. ARSEM, William C. (B) 7829 Old Chester R d, Bethesda 14 u , (Office of Naval Research) ARTHUR, Edwin P. (G) 3110 Las Faldas D r , Fullerton, Calif (Beckman Instruments, Inc.) ARTIS, William E. (D ) Nebraska State Teachers College Chadron, Nebr. ARWINE, A. S. (R) Refractory & Insulation Corp. Port Kennedy, Pa. ASDELL. Bernard K. (W ) Edgar Division Minerals & Chemicals Corp. of America McIntyre, Ga. ASHMORE. Russell C,, Jr. 1460 W arpath D r , Kingsport, Tenn ASHWORTH, GEORGE L. & BROTHERS. LTD. (W . Gordon Evans) Broad Street Works Hanley, Stoke-on-Trent, England ASQ UITH , Milton Redfeam Brothers, Ltd. Old Mill Glass Works Barnsley, England ASSOCIACAO BRASILEIRA DE CERAMICA (Francisco de Salles V. de Azevedo) Sao Paulo, Brazil ATW ELL, George D,, Jr. (S) Shenandoah Brick & Tile Corp. Box 32, Winchester, Va. A U E R , Konrad F. Netstal, Kt. Glarus, Switzerland (Kalkfabrik Netstal Ag.) AULT, Neil N. (BI) Norton C o , 1 New Bond St. Worcester 6, Mass. AUSKERN, Allan 1105 E. 18th S t , Brooklyn 30, N. Y. A U ST E N A L LABORATORIES, INC. (R. C. Feagin), 224 E. 39th St. New York 16, N. Y. AUSTIN, Arthur O. (B ) Box 109, Barberton, Ohio (A. O. Austin Co.) A U ST IN , Charles E. (S) Consolidated Brick Co. Horseheads, N . Y. A U ST IN . Chester R. (RF1) Oxygen Converter Dept. Kaiser Engineers 1924 Broadway-- Kaiser Bldg. Oakland 12, Calif. AUSTIN, James Bliss (BF) Research Laboratory, U. S. Steel Corp Lincoln Highway, Kearny, N. J. AUSTIN, Lewis M. (G) 2234 Middlesex D r , Toledo 6, Ohio (Owens-Illinois) C eramic Bulletin haA ba; (5A C 3 , i . . I; j t ! J u 1 U5 BA I1 0 p A ' ii AC BAC _ . i\ 4 .1 . 1 . 1 A\ 'E J eac l 'A -, 11 ite ( M *. 3AC. BAC \i 4 1W V 'in ui M A M, : r Cl BAC , F ra J D a: jw en s-l b a c M, Jnn 0 i i itc n i n g BAC ; N , L es Vcsexich ' , yailot* /yamlot* bad ;e r . a * 1. bt^v-O 1701 E. BAliR, C. V. K. C. Re ilciHcy S PhUadelp BAER, John American 3505 N . Bag BY, Riel 15 Allert(Wright UAGLEY, n . 27 Clevel (Bell Tel &AILEY, Fir 840 S. S , (A . O. Si fiAILEY, Jai 95 Steele . (Plax Co 6AILEY, J. Texas Vi Mineral * vol. 34, N< fpKLOTJ, Elliott C. (E l) , ' \fhvrr\y, Pa. (ln'<-rnat!onal Sait Co.) jf.VEDO, Francisco de Salles V. de A5.v>ciacao Brasileira de Cermica sao Paulo, Brazil T/.'EDO, Marcello R. V. de (I) i.'aixa Fustal 2818, Sao Paulo, Brazil (Cermica Sanitaria Porcelite S /A ) B , !, Wnnetb A. (R I) ah Ave., Bethlehem, Pa. hem Steel Co.) .; -, Robert E. (M ) c :r Chemical Div. - '.aiion Research Section 133 5 W . 31st St.. Chicago 9. 111. ,r S, F:>ul D . ( - : nnington St., Elizabeth 2, N . J. iA! 1 (- larence L . (G F) ''otomac, Toledo 7, Ohio -Illinois) ja i . G. (G) r. worth Dr., Pittsburgh 34, Pa. i- h Plate Glass Co.) m . 1aul R. (W I) j ;own Porcelain Co. town, N . J. & WILCOX CO. {' F l -ickerhoff) -. nd St., New York 17, N . Y . Ui ' H. (S) lg. Material Co. 3rd St., Chicago 28, 111. \ Jr. (MJ) ma, Prairie Village 13. Kans. U Co. of America) | ji li iland R. (W ) iv-m, N. Y. iud Farms, Inc.) 'hartes D. (G ) Arnold Dr., Millville, N. J. g Cork Co.) -orge S. CG) shington St., Shelbyville, Iud. h Plate Glass Co.) 'heeler Carr (W ) afton, W . Va. a Co.) R. (GF) ngton Rd., Toledo 6, Ohio nois) s F. (G) rd Ave.. Corning, N . Y. Hass Works) < R. (G) id Development Division Chemicals Corp. , Mich, red E. (G F) -ns-Ford Glass Co. ladway, Toledo S, Ohio (R ) mey Son Co. & Delaware River ia 37, Pa. Ai i i 350.1 Jh' BY. i ! < *. < ? V (''! . (W ) m 'yanamid Co. . I iinball Ave., Chicago 18, 111. tirh rd A. (BJ) -Mr - Rd., Dayton 5, Ohio t m Development Center) Nr man H . (W ) el d St., Caldwell, N . } . cl hone Laboratories, Inc.) 'Io I (El) Si th Ave.. Kankakee, III. Si `ih Corp.) an s (GF) le l'd,, West Hartford 7, Conn. Com.) j" ' ' !. C (S ) Vi Bed Pipe Co., Box 117 I ' -11s, Texas BAILEY, Richard J. Doulton & Co., Ltd. Royal Doulton Potteries Burslem, Stoke-on-Trem, England BAILLAUD, Pierre Etablissements Japy Freres 6, Rue de Marignan Paris V III, France BAIN, Andrew R. The Whins, 26 Park Terrace Stirling, Scotland BAIR, George J. (G FI) Technical Products Division Coming Glass Works, Corning, N. Y. BAKER. Arvid H . (G) 300 Catlin Ave., Port Allegany, Pa. (Pittsburgh Coming Corp.) BAKER. Burton E. (R ) IS Gwynlake Dr., Baltimore 7, Md. (General Refractories Co.) BAKER, D. Martin (W ) 1023 Gardner Blvd., Barberton, Ohio (Ohio Brass Co.) BAKER, Dunbar J. (R ) R. R. 1, Robcsonia, Pa. (North American Refractories Co.) BAKER, Houston R. (G) 138 E. Third St., Coming, N . Y. (Com ing Glass W orks) BAKER. Robert L. (G) 46 Highland Ave., W ellsville, N. Y. (A ir Preheater Corp.) BAKER, Theodore C. (G ) R'.R. 1, Wayne, Ohio (Owens-Illinois) BALDAUF, Earl E. (W I) Flamingo Tile Corp., Box 112 Lake Wales, Fla. BALDRY, Stanley F. T. E. R. G. Industrial Corp-, Ltd. Luton Rd.. Dunstable, Beds London, England BALDW IN, W . J. (W ) Titanium Alloy Mfg. Div., National Lead Co., Box C Bridge Station, Niagara Falls, N . V. B A L IN A , Marcelo O. C.A .P.EA ., Lanus-KM 7 C. Gral., Belgrano Buenos Aires, Argentina BALTNKIN, Isay (W ) University o f Cincinnati Cincinnati 21, Ohio BALL. Albert L. (R ) Bay State Abrasive Products Co. Westboro, Mass. BALL BROTHERS CO. Muncie. Tnd. BAQ UE. Harold W . CGI) 1311 Mohican Dr., Pittsburgh 28, Pa. (Corhart Refractories Co.) BARBA. C. E,, Sr. (M ) R.R. 1, Doylestown, Pa. (Globar Div.. Carborundum Co.) BARBER, Fred O. (M ) 788 Evening St., Worthington, Ohio (Harrop Ceramic Service Co.) BARBER. Stephen W . (G) Owens-Illinois 1700 N. Westwood Ave., Toledo 1. Ohio BARBER, W. A., Jr. (S ) Acme Brick Co., Box 425 Fort Worth, Texas BARBOUR, David J. (W F) 345 E. Highland Dr., Zanesville. Ohio BARBRE, Norris H . (S ) Mellon Institute. 4400 Fifth Ave. Pittsburgh 13, Pa. BARCH, Frank N. (S ) 2390 Collins Rd., Pittsburgh 35, Pa. (Dwight B. Hendryx & Associates) BARDSLEY, James J. (RJ) Box 736, Alfred, N. Y. (Alfred University) BARIUM REDUCTION CORP. (K . O. Priddy) South Charleston 3, W . Va. BARKER, Harry L. (W ) Salem China Co., Salem, Ohio BARKER. Rolland C. (G) Glass Mfg. Dept., Lamp Div. General Electric Co., Nela Park Cleveland 12, Ohio BARLETT, Helen B. (BF) A C Spark Plug Div., General Motors Corp., Flint 2, Mich. BARNES, Wilson R. (R) Corhart Refractories Co. 16th & Lee Sts., Louisville 10, Ky. BARON, Jean 15, Place Carnot Nancy (Meurthe et Moselle) France (Institut dc Rccherches de la Siderurgie) BARR, Harold N. (B ) Vitro Corp. o f America 200 Pleasant Valley Way W est Orange, N. J. BARR, Harry (M) Consolidated Feldspar Dept. International Minerals & Chemical Corp. Box 1843, Trenton 7, N . J. BARR, Robert A. (E ) 867 River Rd., Fair Haven, N . J. (Carborundum Co.) BARR, Seymour- J. (S ) Shenandoah Brick & Tile Corp. Box 32, Winchester, Va. BARRETT, Harvey N.. Jr. (R) 2233 St. James Parkway Cleveland H eights, Ohio (Basic Refractories, Inc.) BARRETT, Maurice (L ife) 8 Oxcliffe Rd. Morecambe and Heysham, England BARRETT, Wayne E. (S) R.R. 1, W est Des Moines, Ia. (Central Engineering & Investment Co.) BARRINGER, Lawrence E. (Honorary. W FI) 23 Front St.. Schenectady 5', N. Y. BARROW S PO R CELAIN ENAM EL CO. (Woodrow Carpenter) Langdon Rd. & Penn R. R. Cincinnati 13, Ohio BARTA, R. Czechoslovak Ceramic and Glass Society Technicka ul.c.5. Praha X IX , Czechoslovakia BARTHOLOMEW, George A. (S ) Mellon Institute, 4400 Fifth-A ve. Pittsburgh 13, Pa. BARTLETT-COLLINS CO. (Harrison I. Bartlett) Box 519 Sapulpa, Okla. BARTLETT. E. E. (G) 4387 Boca Chica Blvd. Brownsville. Texas (Bartleit-Collins C o .). BARTLETT. Harrison I. (G) Bartlett-Collins Co., Box 519 Sapulpa, Okla. BARZAGH1, Luciano Ceramica Sao Caetano Rua Roa Vista. 8 4 -6 andar- Caixa Postal 278, Sao Paulo. Brazil BASIC REFRACTORIES, INC. (H . P. Eells, Jr.) 845 Hanna Bldg. Cleveland 15, Ohio BASLER, Wayne G. (GJ) 5735 Gross Dr., Dayton, Ohio (Wright Air Development Center) BASS, N. W. (R) Brush Beryllium Co., 4301 Perkins Ave. Cleveland 3. Ohio BASSETT, Leon B. (B ) Box 284. Alfred, N. Y. (State University of New York, College of Ceramics) BASSETT, Ray E. (S) Acme Brick Co., Box 425 Fort Worth 1, Texas BASSETT, Robert (S ) Central Commercial Co. Darlington, Beaver County, Pa. BATEMAN, L. A. (E) Eljer Co., Enamel-Ware D iv. Salem, Ohio 'f 10 (1955) Roster 3 I * I I 4 * V. r P I l BATES, A. Allan (B) BECHTNER, Paul (M) Portland Cement Assn. American Colloid Co. 33 W . Grand Ave., Chicago 10, 111. Merchandise Mart Plaza, Room 813 BATES, Charles E. (S ) Hanley Co., Summerville, Pa. BATES, Edgar A. (B) 204 Florida Dr., New Kensington, Pa. Chicago 54, IlL BECK, Elmer W . (M ) Ceramic Supply Co., Crooksville, Ohio BECK, Norman R. (G ) (Pittsburgh Plate Glass Co.) Carr-Lowrey Glass Co. BATES, Frank O. (W ) Baltimore 3, Md. Solar M fg. Corp., E. 46th St. at Seville BECK, Roy D . (E l) Los Angeles 8, Calif. 6330 Moraine Ave., Hammond, Ind. BATES, H . Clifford (G) (Binks Mfg. Co.) 25 Old Colony Rd. BECK, Warren R. (B ) Willowdale, Ont., Canada Minnesota Mining & Mfg. Co. BATES, P. H. (Life, XF) Central Research Bldg. 1620 Seventh St., N , St. Petersburg, Fla. St. Paul 6, Minn. B A T ESO N , H . Marshall BECKEMEYER, Harry J. (W ) 68 Spring Grove Universal-Rundle Corp. Loughton, Essex, England W . Keith McAfee Lab., Box 1268 (Thermos, Ltd.) Mahoningtown, Pa. BA T T IST A , George BECKER, Bruce N. (GJ) . Gen. Del., Alfred, N. Y. 602 N. Marshall St., Lancaster, Pa. BAUER, Richard M. (M) (Radio Corp. of America) 728 St. Louis Ave., Zanesville, Ohio BECKER, Martin G. (S ) (M osaic T ile Co.) Brookhaven Pressed Brick & M fg. Co. BAUER, W olf G. (S) Box 542, Brookhaven, Miss. 5213 11th Ave., N. E.-, Seattle 5, Wash. BECKER, Walter D . (S ) (Pyro Mineral Engineering) Brookhaven Pressed Brick & M fg. Co. BAU LEK E, Maynard P. Box 542, Brookhaven, Miss. Ceramic Engineering Dept. BEECHER, Milton F. (RFI) Iowa State College, Ames, la. 50 Woodland Rd., Holden, Mass. BAUM , Frederick J., Jr. (B ) E . I. du Pont de Nemours & Co., Inc. Experimental Station, Chemical Dept. Wilmington, Del. B A U M A N N , Henry N ,, Jr. (B F I) 1275 Wyoming Ave. Niagara Falls, N. Y. (Carborundum Co.) BAUMER, Leon N. (R) ' 240 Rockingham Rd., Pittsburgh 38, Pa. (Mellon Institute) BAUMLER, Karl (G) Pittsburgh Corning Corp., Sedalia, Mo. BAUSCH & LOMB OPTICAL CO. (Murray Scott) Rochester 2, N. Y. B A X TER , Allen J. Box 1007, Alfred, N. Y. BA Y L ISS, John M. (R) 629 Frederick St., Lancaster, Ohio (M ullite Refractories Co.) BEELER, L. S. (W ) Reynolds Metals Co., 2500 S . Third St. Louisville 1, Ky. BEERMAN, Henry P. (B) Philco Tube Laboratory, Church Rd. Lansdale, Pa. BEERS, Roland F. (B ) Box 1015, Troy, N. Y. (Pinewold Pottery) BEETON. Earl E. (GI) 1604 Lincoln St., Bethlehem, Pa. (Western Electric Co.) BEGIEN, Virginia American Ceramic Society 4055 N . High St. Columbus 14, Ohio BEHREND, Oswald (R ) 2557 Robinwood, Toledo, Ohio (Owens-Illinois) BAY STATE ABRASIVE BEHRINGER, H. L. (G) PRODUCTS CO. Tygart Valley Glass Co. (O . S. Buckner) Westboro, Mass. Washington, Pa. BEAL, D. S. (E) BEINLICH, Alfred W . (R) 15 Oak Dr., Poland, Ohio 3404 19th Ave., Sheffield, Ala. (Youngstown Sheet & Tube Co.) (Tennessee Valley Authority) BEALS, M. Douglas (BI) BEINLICH, Justus J. (R) Research Lab., Titanium Division United States Steel Corp., Room 2421 National Lead Co., South Amboy, N. J. 525 William Penn Place Bldg. BEALS. Robert J. (W I) Pittsburgh 30, Pa. 109 Ceramics Bldg. BELL, Clarence D . U niversity of Illinois, Urbana, 111. Box 3438, Clemson College Station BEAM. James R. (W FI) Clcmson, S. C. 300 Ruth Ave., Mansfield, Ohio BELL. Kenneth E. (S ) (Ceramic Engineering Service) 349 Lacasse Ave., Apt. 6 BEARD. Clinton L. (W I) Globe-Union, Inc., 900 E. Keefe Ave. Eastview, Ont., Canada (Ottawa Brick & Terra Cotta Co., Ltd.) Milwaukee 12, Wise. BELL, Richard (M ) BEASLEY, Dennis R. (G) Bell Clay Co., Gleason, Tenn. 3654 Piedmont Rd., Huntington, W . Va. BELL, William C. (B F ) (Sinclair Glass Co.) North Carolina State College BEASLEY , Robert M. (G) Dept, of Engineering Research Com ing Glass Works, Coming, N . Y. Raleigh, N . C. BEATHARD, Robert K. (W ) General T ile Corp., Box 38 BELLAMY, Harry T. (R) . Armour Research Foundation El Segundo, Calif. 10 W. 35th St., Chicago 16, 111. BEATON, Orville (W ) Gem Clay Forming Co., Sebring, Ohio BELLAMY, L. B. (R ) Sterling Grinding^ Wheel Co., Box 801 BEAVER, Wallace W. (M) Tiffin, Ohio Brush Beryllium Co., 4301 Perkins Ave. BELLIDO, Bartolom D am is Cleveland 3, Ohio BEAZELL, William H. (G) Director Gerente de ME.R.S.A. Lugones (O viedo), Spain American Window Glass Co. BELOW, Henry (W ) 9 W . Park Way, Pittsburgh 12, Pa. Pennsbury Pottery, Morrisville, Pa. BE BBING TO N, Philip J. (E ) 2 Barker Lane, Saxonville, Mass. (Arthur D . Little, Inc.) BENBENEK, Raymond (SI) Canada Brick, Ltd. Streetsville, Ont., Canada 4 Roster B E N D ER , Bob G. (G l) CBS-Hytron, Kent & Warren c. Newburyport, Mass. Sts- BENDER, John H. (R) Denver Fire Clay Co, Box ssin Denver 17, Colo. 5510 BENDHEIM , R. W. (M) L. H . Butcher Co. 3628 E. Olympic Blvd. Los Angeles 23, Calif BENEDICT, Virginia American Ceramic Society 4055 N. High St., Columbus 14 BE N JA M IN ELECTRIC MFG r A 01*"' (H oyt P. Steele) Des Plaines lit' BENNER, W. J. (R) ' 730 Romona R d , Wilmette, 111 (Pyro Refractories Co.) ' BENNETT, A. H . (G) American Optical Co, Research r Southbridge, Mass. BENNETT, A. Lee (SFI) 1830 Las Flores Dr., Glendale Calif (Pacific Clay Products) " f- B E N N E T T , Dwight G. (EFI) 204 Ceramics Bldg. University of Illinois, Urbana 111 BENNETT, Francis H. (R) ' ' Pratt & Whitney Aircraft, MDL D East Hartford 8, Conn. 958 BE N N ET T, Frederick U. (R) Box 325, Hartsville, S. C. (Carolina Refractories Co) BENNETT, Harry J. (W) Crooksville China Co. Crooksville, Ohio BEN N ETT, Myles P. (RI) 6552 N . Oldham Lane San Gabriel, Calif. (Gladding, McBean & Co.) BENNETT, Walter R. (S) Acme Brick C o, Box 439* Clinton, Okla. BENTZ, George B. (W) National Plumbing Pottery, Inc. 305 N . Front S t , Columbus 15, Ohio BERG. Morris (B ) 315 Pleasure R d , Lancaster, Pa.. (Radio Corp. of America) BERGER, Bernard M. (E) Dept. 817, Sears, Roebuck & Co. 925 S. Homan A ve, Chicago 7, III. BERGER, Donald Francis (G) 41 W. South S t, Painesville, Ohio (Diamond Alkali Co.) BERGERON, Clifton G. (E l) Whirlpool Corp, 300 Broad St. St. Joseph, Mich. BERG-IVERSEN, Wiggo A /S Egersunds Fayancefabriks Co. Egersund, Norway BERKELHAM ER, Louis H. (El) 3621 W . Howard S t, Skokie, 111. (Ohmite Mfg. Co.) B E R N A R D IN I, Guy F. (W ) Box 19, R. R. 1, Latrobe, Pa. (Stupakoff Ceramic & Mfg Div, Carborundum Co.) BERNS, Milton H. (M) 249 Charlotte A v e, Hamburg, N. Y. (Electro Refractories & Abrasives Corp.) BE R N ST E IN , Leonard (R) Kwikset Powdered Metal Products 516 E . Santa Ana S t, Anaheim, Calif. BERNST RF, Robert B. (W) Box 679, East Liverpool, Ohio (Commercial Decal, Inc.) BERRY, Thomas F. (B) 527 34th S t , Union City, N. J. (U . S. Steel Fundamental Res. Lab ) BESSE, Richard W. (W) 481 Brattle R d , Syracuse, N. Y. (Onondaga Pottery Co.) BEST, Edison F. (G) Libbey-Owens-Ford Glass Co. 1701 E . Broadway, Toledo 5, Ohio B E T H L E H E M STEEL CO. (Hobart M. Kraner) Bethlehem, C eramic Bulletin h 12 Ti ( D 2L a 1. N ! C V r: s 1f bv J3 J t: l . it 0 c .,il SH C nS rs Ai 33 SS i 7 ( X.B C r A( i -A nL. O LAC 12 (< LAE 3 ( lit * l.. tOrl cnl H ra .in; y bit 1 > HU N. un, \V< Fi rbc H N. >rth Jl,. . i, : : UUNE.I Robert M,, Jr. 27 Ellington St., Fayetteville, N . C. TISON, L. S. (S) Chambers Brothers Co. :2nd & Media St., Philadelphia 31, Pa. yZ, George C. (M F I) .`.letal & Thermit Corp., 100 E. 42nd St. Jew York 17, N . Y. -Z , Wilbert A. (W ) U. S. Potters Assn. <04 E. Fourth St., East Liverpool, Ohio S, Ralph E. (E I) itemational Division, Ferro Corp. 150 E . 56th S t., Cleveland 5, Ohio CR, George I. (E ) lall Ave., St. Marys, Pa. Pute Carbon Co.) ORODKO, David (G) lchamcal Mirror W orks, Inc. 61-663 Edgecombe Ave. Jew York 32, N . Y. CORP. (Gedert Waiver) 21 Broad A ve., Ridgefield, N . ]. ERSTAFF CLAY PRODUCTS CO. L. N . Bickerstaff) B ox 1178 olumbus, Ga. ERSTAFF, L. N. (S) lickerstaff .Clay Products Co. ox 1178, Columbus, Ga. FORD, Fred A . (G) iox 29, R.R. 2, Campbell, N . Y. (Corning Glass Works) DLE, George J. (R ) 208 S . LaSalle St., Chicago 4, 111. (Illinois Clay Products Co.) DULPH, Albert 11 Holden Rd. Wolverhampton, England :.S T E IN , Hans O. (R ) Metallurgy Research Branch Veronautical Research Lab. (W CRRL) vVADC, Wright-Patterson AFB, Ohio ..IAN, Carroll J. (G) Owens-Illinois General Research Div. 1700 N . Westwood Ave., Toledo 1, Ohio LINGS, David D . (G) Glass Containers Corp. 3601 Santa F e Ave. Los Angeles 58, Calif. NDI, Joe 2310 E . 52nd St., Los Angeles 58, Calif. B CH, Raymond E . (R F I) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Fa. TOP, Edward Messrs. Wm. Jessop & Sons, Ltd. Brightside Works, Sheffield, England BISHOP, Frederic L . <GF) Kimble Glass Co., Box 1035 Toledo 1, Ohio ./'"HOP, George J,, III (S ) j Guignard Brick Works, Box 480 Columbia, S. C. HOP, Harold E. (G) Owens-Coming Fiberglas Corp. Anderson, S. C. HOP, Laveme R. (R ) Aluminum Co. o f America 330P Missouri Ave., East St. Louis, 111. '"SELL, Don W ., Jr. (R I) 703 Green St., Rockton, 111. (Ipsenlab of Rockford, Inc.) 'BY, Henry D . (S ) Central Commercial Co. Darlington, Beaver County, Pa. CK, H . R. (G ) !ruble Glass Co. 700 N . Westwood Ave.. Toledo, Ohio 1KBURN, A. Reif (M I) 204 N . State St., Westerville, Ohio (Ram, Inc.) ; '.CKWOOD, James M. (R I) 24 First St., Niagara Falls, N. Y. (Carborundum Co.) ; 'AES, Henry M,, II (BJ) >39 N. Hoover Ave., Whittier, Calif. 'North American Aviation) 34, No. 10 (1955) BLAHA, Emil (R) 415 Ashmead Rd., Cheltenham, Pa. (Selas Corp. of America) BLAIR, Gerald E. (G) Pittsford-Palmyra Rd., Pittsford, N . Y. (Bausch & Lomb Optical Co.) BLAIR, Marion W. (S F ) 2131 S. Center St., Terre Haute, Ind. (Manufacturers Equipment Co.) BLAISON, Pierre Socit Des Electrodes E t Rfractaires "Savoie," '43, Rue de l'Industrie Venissieux (Rhone), France BLAKE, A. E. (R) 78 Park Ave., West Caldwell, N . J. (M. W. Kellogg Co.) BLAKE, Edwin M. (D ) Box 210, Mount Kisco, N . Y . BLAKE, William V. (RI) Macklin Abrasive Co., Jackson, Mich. BLAKELY, Alexander M. (R ) 911 Lake Ave., Wilmette, 111. (Metal Removal Co.) BLANCHARD, M. Kenneth (E ) A. O. Smith Corp., 3533 N . 27th St. Milwaukee 1, Wise. BLAU, Henry H. (GFI) Federal Glass Co., SIS E . Innis Ave. Columbus 7, Ohio BLENKO, William Henry, Jr. (G) 1412 Main St., Milton, W . Va. (Blenko Glass Co., Inc.) BLESSING , Robert Lee (S I) 1714 Crestwood Dr. ~ Mineral Wells, Texas (Texas Vitrified .Pipe Co.) BLISS. L. G. (M ) Foote Mineral Co., 18 W . Chelten Ave. Philadelphia 44, Pa. BLISS, Roderick T. (S ) Deister Concentrator Co. 901 Glasgow Ave,, Fort Wayne, Ind. BLOCKSIDGE, Arthur B., Jr. (R ) Jones & Laughlin Steel Corp. 40 Longworth St., Pittsburgh 7, Pa. BLODGETT, Malcolm (S ) 660 Main St., Woburn, Mass. (R. Guastavino Co.) BLODGETT, William E. (W ) 11 Lakeview Terrace, Woburn, (R. Guastavino Co.) Mass. BLOHM, Richard E. (E ) 1657 E. Waverly Way Baltimore 12, Md. (Rheem Manufacturing Co.) BLOOM, Ray A. (R) Technical Library Timken Roller Bearing Co. Canton 6, Ohio BLOOR, C. A. (W ) Universal Clay Products Co. Sandusky, Ohio BLOORE, Robert Boulton Swinnertons, Ltd. Hanley, Stoke-on-Trent, England BLUE RIDGE GLASS CORP. (J. H. Lewis) Kingsport, Tenn. BLUM, Seymour (I) Raytheon Manufacturing Co. Research Div. Waltham, Mass. BLUME, Arthur J. (SI) Murray Tile Co., Cloverport, Ky. BLUM ENTHAL. George (W I) Golding-Keene Co., 1401 New YoTk Ave. Trenton S, N . J. BLUNT, Royden A. (G F) * Buck Glass Co., 841 E. Fort Ave. Baltimore 30, Md. ' BLYTHE COLOUR WORKS, LTD. Crcsswell, Stoke-on-Trent, England BOARDMAN, Charlotte K. (R ) Thomas A. Edison, Inc. 51 Lakeside Ave., W est Orange, N . J. BOBROWSKY, A. R. (R) 2012 Pontiac Rd., R. R. 2 Ann Arbor, Mich. (Ford Motor Co.) BOEKER, V. W . (GI) Owens-Coming Fiberglas Corp. 598 Madison Ave., New York 22, X. Y. . BOGATAY, Paul (D) 45 W . Weisheimer Rd. Columbus 14, Ohio (Ohio State University) BOGNAR, Edwin J. (R I) Bognar & Co., Inc., 1803 Oliver Bldg. Pittsburgh 22, Pa. BOHN, Edward L. (R) Muilite Refractories Co., 10 Canal St. Shelton, Conn. BOLANOVICH, Melvin (S ) 3118 Palmer Sq., Chicago 47, 111. (Illinois Brick Co.) BOLE, George A. (X F) Engineering Experiment Station Ohio State University Columbus 10, Ohio BOLLINGER, Robert H. (M I) Georgia Kaolin Co., 433 N . Broad St. Elizabeth 3, N . J. BOLON, David G. (RI) 1416 Arborview; Ann Arbor, Mich. (Norton Co.) BOLTON, Harry L. (R) Philadelphia Quartz Co. Public Ledger Bldg- Independence Square Philadelphia 6, Pa. BOLZ, Leonard H . (B) National Bureau of Standards, Div. 9 : 7 Conn. Ave. & Van Ness Washington 25, D . C. BONEBRAKE. H. P. (M) Aluminum Co. of America 1501 Alcoa Bldg., Pittsburgh 19, Pa. BONK, John A. .(G) Coming Glass Works, Product Eng. Coming, N . Y. B O N N O T CO. (B. T . Bonnot) 722 Mulberry Rd., S. E ., Canton 2, Ohio BONNOT, B. T. (MF) Bonnot Co., 722 Mulberry Rd., S . E. Canton 2, Ohio BOONE, John W . (G) 46 Rugby Rd., Binghamton, N . Y. (International Business Machines Corp.) BOOTH, John F. Haziehead Hall, Penistone, Nr. Sheffield Sheffield, York, England (Hepworth Iron Co., Ltd.) BOOZE, M. C. (RFI) 4725 Walton Creek Rd. Cincinnati 27, Ohio (Charles Taylor Sons Co.) BOPP, Harold F. (GF) 67 Gorton S t., Corning, N. Y. (Coming Glass Works) BOROM, Marcus P. Box 2933, Georgia Institute of Tech. Atlanta, Ga. BOROS, John (W ) 1140 E . Jackson St. Long Beach 5, Calif. (Pacific Tile and Porcelain Co.) BOSCH, F. M. Lab. Anorganisch-Tech. & Electro chemie 22 Plateaustraat, Ghent, Belgium BOSLER, Krell (E) 56 Matti Rd., Comer Lakeview Dr. Gardner, Mass. (Florence Stove Co.) B O T F IE L D REFRACTO RIES CO. (George B. Botfield) Swanson & Clymer Sts. Philadelphia 47, Pa. B O T FIELD , George B. (R ) Botfield Refractories Co. Swanson & Clymer Sts. Philadelphia 47, Pa. BO TH E, James V. (GJ) 3 Pyrex St., Corning, N . Y. (Coming Glass Works) BOUDER, Norman M., Jr. (G) 4820 Roland Ave., Baltimore 10, Md. (Pemco Corp.) Roster 5 BOURGERIE,' R. D. (W ) Radio Materials Corp. 3325 N. California Avc., Chicago 18, 111. BOVEE, Benedict A. (M ) 1837 Winter Rd. rand Island, R.R., N. Y. iobar Div., Carborundum Co.) BL JE N , James J. (R ) Bowflux Co., Box 65, Cortland, Ohio BOWER, David N. (G) 3932 Rohr Dr., Toledo 13, Ohio (Owens-Illinois) BOWERS, Donald J. (M) 950 Highland Dr., Columbus 14, Ohio (Battelle Memorial Institute) BOWES, Urban E. (GF) Owens-Illinois, Box 1035--1036 Toledo 1, Ohio BOWMAN, Donald C. (E ) 170 N . Du Bois Ave., Elgin, 111. (Chicago Vitreous Corp.) BOWMAN, D. Scott (M ) 13095 Franklin Ave. Mountain View, Calif. (Globar D iv., Carborundum Co.) BOWMAN, Eugene D. (G) 824 Oakwood Ave., Columbus 6, Ohio (Kimble Glass Co.) BOW MAN, John G. (W ) 341 S. Juliana St., Bedford, Pa. BOWNE, Martin S. (S I) Lee Clay Products Co., Inc. Clearfield, Ky. BOYCE, Joseph (M ) Vitro M fg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. BOYCE, Robert E. (W ) Harker Pottery Co. East Liverpool, Ohio BO YD. Frank H . (M) S . G. Frantz Co., Inc. Box 1138, Trenton 6, N. J. BOYD. John E. (MI) tlox 2414, Greensboro, N . C. Itrolina Pyrophvllite Co.) BC L. R., Jr. (S) Teague Brick & Tile Co., Box 329 Teague, Texas BO YD, Robert C. (E F I) American Standard, 1541 S. Seventh St. Louisville 8, Ky. BOYLES, John P. (W ) Edwin M. Knowles China Co. Newell, W . Va. BO YNTO N, Claudia G. (D ) 7040 Yale Ave., Chicago 21, 111. (Industrial Publications, Inc.) BO YNTO N. 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, Pa. BRACKBILL, Charles E. (W ) 1415 County Line Rd., Fostoria, Ohio (Electric Auto-Lite Co.) BRADEN, Roger W. (M) Hammond Lead Products 526 Calumet Bldg., Hammond, Ind. BRADLEY, Alan L. Consolidated Rand Brick Pottery & Lime Co. P. O. Olifantsfontein Transvaal, South Africa BRADLEY, Charles A., Jr. (G ) Finewood Acres, R. R. 3, Corning, N. Y. (Com ing Glass Works) BRADLEY, Edward L. Georgia Institute of Technology Box 4985, Atlanta, Ga. BP 'J.EY, Fennimore N. (I) 5 E. Deleware, Urbana, 111. BRa DLEY, R. S. (RFI) A. P, Green Fire Brick Co. Research Dept., Mexico, Mo. BRADSTREET, Samuel W . (E ) Armour Research Foundation 10 W. 35th St., Chicago 16, 111. 6 R oster BRA DW ELL, Cyril (R I) Parkhurst Apts. 7B Barbara & Marion Sts., Bethlehem, Pa. (Bethlehem Steel Co.) BRADY, Earl (S) Box 666, Denton, Texas (Acme Brick Co.) BRA DY, John G. (B) Dept, of Mines & Technical Surveys Ceramic Section, 40 Lydia St. Ottawa, Ont., Canada BRA DY, Justin M. (W ) 23 W. 16th St., Apt. 28 Indianapolis, Ind. (American Art Clay Co.) BRADY, T. E. (R) Surface Combustion Corp. 2375 Dorr St., Toledo 1, Ohio BR A IN , Douglas G. (W ) 1960 Jane St., Toronto 15, Ont., Canada (Standard Sanitary & Dominion Radiator, Ltd.) BRAMLETT, William P,, Jr. (GI) Cumberland Rd., R.R. 2, Millville, N . J. (Armstrong Cork Co.) BRANDT, Kristian H. (B) 643 James Place, Pomona, Calif. (Convair) B R A N D T, Martha W . (G) National Glass Budget 800 Grogan Bldg., 541 Wood St. Pittsburgh 22, Pa. BRANDT, Neill M. (GF) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. BR A N D T . William O. (R F I) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. BRA NT, David G. <W I) Universal-Rundle Corp., Box 300 Redlands, Calif. BR A SH A R ES, C. A. (R ) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. B R A SSF IE L D , Henry C. (B ) R.R. 1, Stevens Rd.. Foster, Ohio (General Electric Co.) BRAUCKMAN, Alvin J. 3 K em Ramble, Austin. Texas BRAY, Kenneth J. (W ) Wenczel Tile Co.. Trenton, N . J. BRAYKOVICH. A. F. (W ) Humphryes Manufacturing Co. 201 E. Fifth St., Mansfield, Ohio Brazilian Ceramic Society--see Associacao Brasileira de Ceramica BREEDLO VE, James G. (W I) American Lava Corp. Chattanooga, Tenn. BREENE, George A. (G) Industrial Colloids Co. Emlenton, Pa. BREEZE, Lewis K. (E ) 501 E. 288th St., Willowick, Ohio (Glascote Products,. Inc.) BREITW IESER, Robert H. (R) 1616 W . 27th, Pueblo, Colo. (Standard Fire Brick Co.) BREKKE, Trygve Box 266, Stavanger, Norway (Stavangerflint) BRENNER, Harold M. (E ) B. F : Drakenfeld & Co., Inc. Washington, Pa. BRENNER , R. F. (G F) Anchor Hocking Glass Corp. Lancaster, Ohio BRETTELL, I. P. (S) Cooksville Co., Ltd., 1055 Yonge St. Toronto 5, Ont., Canada BRETZ, Lewis A. (S) 1718 Theodan Dr., Pittsburgh 16, Pa. (NATCO Corp.) BREW ER. Bob (S ) Alamo Clay Products Co., Inc. Box 93, Elmendorf, Texas BREW STER, Gordon F. (G) 807 Ridge Road E., Williamson v, (Bausch & Lomb Optical Co V V- BRIAN, Charles (M) S'- Paper Makers Importing Co t 44 S. Second St., Easton Pa" ' BRIAN, Dick (W ) 422 Florida Ave., Chester, W v !- (Harshaw Chemical Co.) Va' BRIAN, S. Douglas (M) Paper Makers Importing Co T- l{ 0 44 S. Second St., Easton, Pa ' nC' pKc BRICKHOUSE, Robert E. (R) 107 Van Buren St., Evans Citv u (Johns-Manville) Pa- gRU BRIGGS M ANUFACTURING rrr (A . J. Raible) 71st St. & B & O Railroad Cincinnati 16, Ohio BRINCKERHOFF, J. E. (R) Babcock & Wilcox Co. 161 E. 42nd St., New York 17 BR INDLEY, George W. (B ) Dept, of Ceramic Technology M v Y' bko i ( IJSO Pennsylvania State University J ll<- University Park, Pa. BRINKM AN, Robert J. 3405 W . 90th St., Cleveland 2 Ohin BRISBANE, S. M. ' Uh, 40 Riverdale Rd., Hawthorn E2 Victoria, Australia l-;RC (Commonwealth Scientific & Industr' Research Organization) 111 11RU ( i . BRISTOW , Robert H. (W I) 57 Sequoia Rd., R.R. 1 Ballston Lake, N . Y. : c b .u r BRITCHER, Gordon (W ) 306 Berkeley Dr., Syracuse 10, N. Y (Syracuse Pottery, Inc.) IJRU 1 B R ITISH CERAMIC SOCIETY Federation House Stoke-on-Trent, England BRITTAIN, Clifford G. RU I Gen. Del., Clemson, S. C. BRITTON, Marvin G. (R) 1 Kt 139 Steuben St., Painted Post, N. Y. (Coming Glass Works) BROCKW AY GLASS CO., INC. LK) (F . B. H ess) Brockway, Pa. BROOKE, Stanley Oughtibridge Silica Firebrick Co., Ltd. Oughtibridge, Sheffield, England BROOKS, Robert H . (W ) bRY 1 ( 1738 Pavilion Dr., Pomona, Calif. ; ; R'S (Norris-Thermador Corp.) BROSIUS, John P. (G) 403 Emerson Ave., Aspinwall u c Pittsburgh 15, Pa. (Krieg Piston Ring Co.) BROSKE, William F. (S) i ut Aircraft-Marine Products, Inc. 2100 Paxton St., Harrisburg, Pa. li IK. BROWN, Arthur E. 5106 Gifford Ave., Cleveland 9, Ohio BROW N, Clarence B,, Jr. (M) HU Hardinge Co., Inc., 205 W. Wacker Dt. Chicago, 111. BROWN, Donald Nicol (G) 4 E. Third St., Coming, N. Y. (Coming Glass Works) BROWN, Donovan P. (RI) 2704 Eldon Ave., Drexel Hill, Pa. (North American Refractories Co.) BROWN, Frank H., Jr. (B) iU1 j BUi ) Box 33, Glendora, Calif. (North American Aviation, Inc.) BROWN, George Reuben (M ) North American Mfg. Co. 4455 E. 71st St., Cleveland 5, Ohio ; Bin BROW N, John J., Jr. (S I) Redford Brick Co., 12th & Maury St. Richmond, Va. \ BUr BROWN, Joseph A. (S) Baltimore Brick Co. , BUr 3200 E. Madison St., Baltimore 5, MU' BROWN, Lawrence H. (W FI) Bu. Box 632, East Liverpool, Ohio (Hall China Co.) j Ceramic Bulletd* J i VL. } r* YV "R, V ; j ` 1 ' 1I n Si vM Iif JV h ( L j , 1 ' a r* o' 'i o . e * si . ) .? ( i i 1I r.k S C. 1 K i* .S, B erba Y, ny . IfOT \, N Leslie <W) ' ' nox, Inc., Trenton S, N. J. ,'N, Meredith C. (S ) ' 00 S. Norwalk Blvd. i >s Nietos, Calif. (Pacific Clay Products) Raymond G. (R ) i -mstock & Wescott, lnc,, Box 835 Niagara Falk, N . Y. c v,VN, Raymond J. 10 S. Scoville Ave., Berwyn, 111. M, Roy W . (G ) BULLARD, Edward R. (E ) B. F. Drakenfeld & Co., Inc. Washington, Pa. BULLARD. 2nd Lt. Keith, 068031 USMCR "D " Co., 2 B. C., Ba. Scol., M.C. 5, Camp Upshur, Quantico, Va. BULLOCK, Gordon 20 Firth PI., Warrington, England (College of Technology) BUNGE, Fred H . (M ) M. A. Hanna Co., Research Lab. Hibbing, Minn. BURROUGHS, Jack E. Miller Equipment Co., Box 1566 Salisbury, N . C. BURTON, Howard B. (G) 1618 Arlington Ave., St. Paul 17, Minn. (Minnesota Mining & Mfg. Co.) BURTON, W. A. (W ) 803 E . Fourth St.. Mt. Pleasant. Texas (Paris & Mt. Pleasant R. R.) B U R W IN K EL , Lawrence G., Jr. (G ) Pennsylvania Glass Sand Corp. Two Gateway Center, Pittsburgh 22, Pa. ' ? Grennoch St., Houston 25, Texas BURCH, Oscar G. (G F) B U S H , Edward A.. tborundum Co.) Owens-Illinois 200 Washington Ave., Vandergrift, Pa. M, Wilbur F. (G F) '>ey-Owens-Ford Glass Co. Box 1035-1036, Toledo 1, Ohio BURCHENAL, Charles H . (W ) BU SH , James W . (S I) 4550 Delhi Rd., Cincinnati 38, Ohio sford, Ohio Cambridge Tile Mfg. Co., Box 71 (Natco Corp.) J, William E . (R ) >: 217, R.R. 1, Norristown, Pa. Cincinnati 15, Ohio BURCHFIEL, B. M. (RFI) B U S H , Ralph R. (M ) S20 McKinley St., North Canton, Ohio . J. Lavino & Co.) >rE, Thomas C. (R I) 5 Orchard Dr. h Plainfield, N . J. anium D iv., National Lead Co.) 4458 Rosewood PI., Riverside, Calif. (Hancock Brick Co.) BURCHFIELD. Paul E. (G) Wyandotte Chemicals Corp. 1609 Biddle Ave., Wyandotte, Mich. (Bonnot Co.) B U S H , W . G., & CO. (John S. H erbert) 174 Third Ave., N.. Nashville 3, Tenn. BUSHONG, R. M. (R) National Carbon Co., Tiffin & Town Sts. ,'i ELL, W ayne E . (S I) BURDICK, Milton D . (W F I) Fostoria, Ohio '6 Hornell St.-, Hornell, N . Y . Porcelain & Pottery Section BU ST E E D , Donald J. (R I) I ie University of New York, National Bureau of Standards 8 Janet Circle, Shrewsbury, Mass. ge of Ceramics) Washington 2S, D . C. (Bay State Abrasive Products Co.) '.ERHOFF, Charles (R ) BURGBACHER, Donald E. (R ) BU T C H ER , L. H ., CO. (R. W . Bendheim) can Zinc Co., N . Rosita 6812 Buckingham PI. 3628 E. Olympic Blvd. uila, Mexico Cincinnati 27, Ohio Los Angeles 23, Calif. , Hans W . (R) (Cincinnati M illing Machine Co.) BUTCHER, William T. tart Refractories Co., Inc. BURGESS, Blandford C. (M F) "Woodgarth," 3 Stamford Brook Ave. W . Lee St:, Louisville 10, K y. USO M , APO 928, San Francisco, Calif. London, W . 6, England ER, Cedric D. (W ) BURKE, J. E. (B) (Goodlass Wall & Lead Industries, Ltd.) V . Union, Rockton, 111. General Electric Co., Research Lab. BUTKOVICH. Edward M. (R ) -a nlab of Rockford, Inc.) Schenectady, N . Y. 9000 Buffalo Ave., Chicago 17. 111. I . Lucian V. (S ) BURKE, L. Roger (R) ral Seaboard Terra Cotta Corp. 1203 Peoples Bank Bldg. (Armour Research Foundation) BUTLER, F. W. (W ) h Amboy, N . J. Pittsburgh 22, Pa. Akron Porcelain Co., Akron 14, Ohio George D . (S I) (Chas. Taylor Sons Co.) BUTLER. Thomas J., Jr. (S ) >p Ceramic Service Co. BURKE, O. W ,, Jr. (R ) Box 279, Austin 62, Texas :. Gay St., Room 413 i ml>us 15, Ohio 11281 E. N ine M ile Rd. Van Dyke, Mich. (Elgin-Butler Brick Co.) BUTTERW ORTH, William N . (G) William, Jr. (E) (Burke Research Co.) General Refractories Co. Inc., 4104 Park Ave. BURKERT, John G. 950 Leader Bldg., Cleveland 14, Ohio He 9, Tenn. Box 214, Alfred, N . Y. BUTTLE, Robert L. (W ) , Albert D. (M ) BURKHALTER, Edward (SI) 111 Bayview D r., Absecon City, N . J. . Sand Corp., Box 84 7219 Interlaaken Dr. (Lenox Inc.) c ueur, Minn. Tacoma 99, Wash. BU TTO N , Daniel D . j: Eugene E. (E F I) (Builders Brick Co.) Box 11, Alfred, N. Y. > Corp., 4150 E. 56th St. B U R K S, Cecil M., Jr. (R I) BUTTO N, Dudley (D ) land 5, Ohio 1005 Kenmore Ave., S. E. Mercedes Ceramic Studios Homer L. (S ) Warren, Ohio 3060 Bloor St., W. arson Clay Products. Box 870 (General Refractories Co.) Toronto 18, Ont., Canada rson, Texas BURLEY, Frank N. (W ) BUZARD. Fred T. (M) , M. A. (RI) 520 W. Ricketts St., Kokomo, Ind. Bell, Pine & H igh Sts., Plymouth, Ohio nth St., Benton, Ark. (Kokomo Sanitary Pottery Corp.) (Fate-Root-Heath Co.) ( / . Green Fire.Brick Co.) BURLEY, Newton Ray <W) BYERLY, D. R. (W ) ij K LASS CO. (Royden A. Blunt) 1864 Dresden Rd., Zanesville, Ohio Procter & Gamble Co. ! Fort Ave., Baltimore 30, Md. (Burley Clay Products Co.) M: A. & R. Bldg., Ivorydale 17, Ohio S, Paul E. (W I) BURLINGAME. Howard G. (E ) B Y R N S, Alva C. (R ) Indiana St., Zanesville, Ohio California Metal Enameling Co. Kaiser Aluminum & Chemical Corp. 'I aW 11agar Ceramic Materials) 6904 E. Slauson Ave. 1924 Broadway, Oakland 12, Calif. v R. O. S. (G I) Los Angeles 22, Calif. State Abrasive Products Co. V nvn. Mass. BUR NAND, Guy M. (Life) Messrs. Johnson, Matthey & Co., Ltd. -G, V ert H. (W ) 78, Hatton Garden CABLE, John A. (W ) Glo :on, Inc., 900 E. K eefe Ave. London, E. C. 1, England 1011 22nd S t. N . E., Canton 4, Ohio Mil - e l , Wise. BUR NS, Frederick L. (W ) (U . S. Quarry Tile Co.) EHI k. iiert P . (S ) 1777 Norwood Blvd., Zanesville, Ohio CABLE. Margaret (D F ) 243 Ti.rrington Ave., Parma 29, Ohio (W att Pottery Co.) 1520 San Miguel Ave. (C- -d- nd Builders Supply Co.) BUR NS, Henry K., Jr. (S ) Santa Barbara, Calif. v.s : M, W . R. (B ) 1620 Waverland Dr., Macon, Ga. CABLE, Stephen J. (W ) Ve nsyk ania State University (Burns Brick Co.) *- 3615 Eaton, N . W ., Canton 9, Ohio O- lege : Mineral Industries BU R N S, Joseph A., Jr. (M ) (Sparta Ceramic Co.) ver.k y Park, Pa. Joseph A. Burns & Son CABOT, GODFREY L., INC. ' LO POTTERY, IN C. V (h F.. uld) 25 Hayes PI. ib TBLuD'Okv; ! F,RNIC. YK. CO. 124 Harrison Ave. Avalon, Pittsburgh 2, Pa. BURNS, R. S. (E) Armco Steel Corp., Research Library (Frank E. Daley) 39 Glen Dr. Yardtey, Pa. CACCAMISE, Charles T . (M ) Electro Metallurgical Co., 137 47th St. (R C. rlahan) 38( V h Ave., S., Seattle, 1. 'K T/ ;, '.-nt Sn uerl i A n k a r a , Turkey ; -K!.EY, i' -.nald (M ) Sr ony Mr HI Laboratories 1 r ilsbr N. J. Middletown, Ohio BURRISS. William K. (G) Consolidated Feldspar Dept. International Minerals & Chemical Erwin, Tenn. BURROUGHS. F. H. (W ) Box 1329, Trenton 7, N. J. Corp. Niagara Falls, N . Y. CAHOON, G. J. (W I) 205 Dewey St., Oregon, CAHOON, Harold P. (S ) 1555 E. 3350 South Salt Lake City, Utah (Interstate Brick Co.) W ise. u j, : . 10 (1955) Roster 7 , CAITO. A. M. (RI) CARDER, Frederick (Honorary, GF) B u ie Refractories, Inc. Steuben Div., Coming Glass Works Maple Grove, Ohio Coming, N. Y. CALA, Charles F. (G) CAREY, J. Sheldon (D ) 144 Hoover Rd., Rochester 17, N. Y. Dept, of Design, University of Kansas (Bausch & Lomb Optical Co.) Lawrence, Kans. CALABRESE, Donald W. CARINI, George F. Box 21S, Alfred, N. Y. .DWELL, Helen (D ) 'Board o f Education 628 S . Seminole, Okmulgee, Okla. CARL, John E. <GI) Coming Glass Works Administration Bldg., 1429 W . Seventh Central Falls, R. I. Burlington, la. CARLSON, Joseph A. (S ) CALDW ELL, Smiley, Jr. (G) 50 Hawthorne St. Rolland Glass Co., Box 232 San Francisco 5, Calif. Clarksburg, W . Va. (Kraftilc Co.) CALDW ELL, Smiley M., I l l CARLSON, William G. (R I) 1435 Farland Ave., Clarksburg, W . Va. 175 Glenfield Dr., Pittsburgh 35, Pa. CALDWELL, William D. (E l) (Westinghouse Electric Corp.) Perfection Industries, Inc. CARLYLE, Edward C. (S ) 1135 Ivanhoe Rd., Cleveland 10, Ohio Box 128, Ironton, Ohio CALLAHAN, H. D. (W FI) (Carlyle Tile Co.) U . S. Ceramic Tile Co. CARNAHAN, Thomas D . (M I) East Sparta, Ohio B. F. Drakenfeld & Co., Inc. CALLAHAN, Robert M. (B ) Box 519, Washington, Pa. 4553 Seville Ave. CARNES, Kenneth C. (G) Los Angeles 58, Calif. Toledo Engineering Co., Inc. (Solar M fg. Co.) 3001 Sylvania Ave., Toledo 13, Ohio CALLINAN, Edward E. (RFI) CARNES, Samuel J. (D ) DeKalb Park, Center Square, Pa. Camark Pottery Co., Camden, Ark. (Alan Wood Steel Co.) CARO. Robert (M) CAMERON, Robert Ayre (G) Corning 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, G. Donald (G) 621 Shelby St., Shelbyville, Ind. (Pittsburgh Plate Glass Co.) CAMPBELL. Ian (B ) California Institute of Technology Div. of Geological Sciences 1201 E. California St. Pasadena 4, Calif. iPBELL, J. Douglas (E ) Lithium Corp. of America, Inc. 540 Lincoln Bldg., 60 E. 42nd St. New York 17, N . Y. CAMPBELL, Robert M. (W F I) Alfred, N. Y. (State University of New York, College of Ceramics) Hedi Schoop Art Creations, Box 384 North Hollywood, Calif. CAROTHERS, Harry S. (M) H . C. Spinks Clay Co., Inc. 1000 First National Bank Bldg. Cincinnati 2, Ohio CAROTHERS, R. B. (MF) H . C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS, Richard B., Jr. (M) H . C. Spinks Clay Co., Inc. Box 829, Paris, Tenn. CAROTHERS, T. E. (M) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. CARPENTER, F. Scott, Jr. (M ) W hite Pigments Division Godfrey L. Cabot, Inc., 77 Franklin St. Boston 10, Mass. CARPENTER, Harry W. 15 N. Monroe St., Hinsdale, 111. CARPENTER, Woodrow (E) Barrows Porcelain Enamel Co. Langdon Rd. & Penn. R. R. CAMPBELL, Tom W . (R) Box 303, Poland, Ohio Cincinnati 13, Ohio CARR-LOW REY GLASS CO. (Electro Refractories & (Norman R. Beck) Baltimore 3, Md. Abrasives Corp.) CARROLL, Jerry W . CAMPBELL, Van E. (W ) 363 Highland Ave., Wadsworth, Ohio R. R. I, Cedar Falls, la. CARROLL, William F. (W ) (Ohio Brass Co.) 3499 McNally Ave., Altadena, Calif. CAMPOS, F. Torres (S) Puerto Rico Clay Products Corp. Box 4729, San Juan, Puerto Rico CANADIAN CERAMIC SOCIETY (M iss L. C. K eith), 49 Turner Rd. Toronto 10, Ont., Canada CANFIELD, J. J. (E F ) 2909 Orlando Dr., Middletown 20, Ohio (Armco Steel Corp.) CANNING, Robert (G) 202 F ox Chapel Rd., Pittsburgh 38, (Pittsburgh Plate Glass Co.) CAPELLMAN, John J. (R ) 1118 Highland St., Tarentum 1, Pa. (Pittsburgh Plate Glass Co.) CAPPELLI, Louis A. 916 Bryant Ave. Bronx 59, New York, N. Y. CAPPS, Hubert (S) 1108 W . Third St,, Coffeyville, Kans. ' Ludowici-Celadon Co.) (Florence Ceramics Co.) CARRUTH ERS, John L. (S F I) Lord H all, Ohio State University Columbus 10, Ohio CARTER, D . R. (M) Eagle-Picher Co. American Bldg., Cincinnati 1, Ohio CARTER. F. B. (W I) Tiffin 12, Ohio (American-Standard Corp.) Pa.CAR2T6ELRa,uGreelraSrtd., TF.ai(rWha)ven, Mass. (Comell-Dubilier Electric Corp ) CARTER, Herbert D. (W FI) 3351 Dorchester Rd. Shaker Heights 20, Ohio (Harshaw Chemical Co.) CARTER, J. Guild (M ) Eureka Feldspar Mining & Milling Co., Inc., 190 W . State St. Trenton 8, N . J. CARTWRIGHT, S. V. (SI) * !S, Webster (G) 1224 Victoria Ave., Corona, Calif. National Bureau of Standards (Jordan Tile Mfg. Co.) Washington 25, D. C. CASAMO, Charles C. (G) CARBORUNDUM CO. (H . C. Martin) Sylvania Electric Products, Inc. Buffalo Ave., Niagara Falls, N. Y. Emporium, Pa. 8 Roster CASE, W . A., & SO N MFG. CO. (W illard G. Young) Robinson In CASSADY, Bert L. (R) ' 5115 S. Lewis Ave., Tulsa K nti CATHER, Helen Fisher (W ) ' Kla Box 2372, Laguna Beach, Calif (Cather Kilns) CATON, Milton W . (RF) 22490 Nevada Ave., East Detroit (Ceramic Div., 1" lch Champion Spark Plug Co.) CAUTHORN, James E. (RJ) 1007 Vermont Ave., Pittsburgh Id (Harbison-Walker Refractories r ,, \ CAVANAUGH, D. J. (W I) 0 822 32nd St., Parkersburg ty v (U . S. Ceramic Tile Co.) ' ' Va- CAWOD, Richard L. (M ) East Liverpool, Ohio (Patterson Foundry & Machine Cot CAYFORD, James M. (E l) ' 1317 Ridge Ave., Steubenville Ok;,, (Toronto Paperboard Co.) ' 0 CECIL, Paul S. (E ) Service Porcelain Enamel, Inc. Brill & Christie Sts., Newark 5 N r CEN TRAL SIL IC A CO. (E. C. S a l i t 806 Market St., Zanesville, Ohio ' CERAMIC ASSO C IA T IO N OF IApart (Yogyo Kyokwai) AN 7, Shiba-Nishikubo-Sakuragawacho Minato-ku, Tokyo, Japan CERAMIC COLOR & CH EM ICAL MFG. CO. (W . F. Wenning) Box 297, New Brighton, Pa CERMAK, Frank (W F) 1542 Union St., Schenectady 9 N Y CERNY, Joseph J. (E ) ' `` 5226-28 W . 26th St. Chicago 50 (Cicero) III. (Resistors, Inc.) CERULLI, Nicholas F. 73 Forest Ave., Caldwell, N. J. CH ADEYRO N, A. A . G. Cleveland Magnesite & Refractory Co. Ltd. Normanby Brickworks, Normanby Middlesbrough, York, England CHAI, Ki-Kon Telluride Assn., Ithaca, N. Y. CHALAM, C. Venkata (J) Hindusthan-Pilkington Glass Works Ltd. Asansol., West Bengal, India CHAM BERLAIN, James M. W. (B) U. S. Stoneware Co., Box 350 Akron 9, Ohio CHAMBERS, Gordon H. (M) Foote Mineral Co., 18 W. Cbelten Ave. Philadelphia 44, Pa. CHAMBERS, Fred (M) National Gypsum Co., Luckey, Ohio CH AM PIO N SPAR K PLUG CO.. CERAMIC D IV . (James S. Owens) 8525 Butler Ave., Detroit 11, Mich. CHANDLER, Keith B. (W) Banyan Ceramics, 109 S.W. Sixth St. Ft. Lauderdale, Fla. CHANTLER, L. W. (R) Standard Lime & Cement Co. Millville, W . Va. CHAPMAN, Frank E., Jr. (E l) 1026 Middlesex Rd., Baltimore 21, Md. (Petnco Corp.) CHAPMAN, G. Marsh (W ) Harshaw Chemical Co., 1945 E. 97th St. Cleveland 6, Ohio CHARBONNIER, William P. (R) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. CHARLAND, Tel L. (RI) 317 W . Kerr Dr., Midwest City, Okla. (Phillips Petroleum Co.) CHARLTON, Alex E. (W) Photoceramics, Inc. . 1822 Western Ave., Cincinnati 14, U" CHARVAT, Fedia R. Mass. Inst, of Technology Rm. 4-051, Cambridge 39, Mass. C eramic Bulletin Cl>` c1 Cfl- O i] t,i` ' CIl Erl ited CJt > i i- 1 i n 4 I ; 1 : C :T i h (jf i ; i* 0 i, | ii r ' 7 LV \ a s; a f t .. . /. V.u n Ch.C ii j r C; i i .j ( > ' CMJ i i . / 2 4 11 n ( . 'ok \ c 1A ( m h 1 c u n ri. n v> .ai.-r li mb. nd Ci i Rl : n . . i b TJ, i v 0 Sait i Ci -V:RI: t .. EK Royal >cr. V.anuf >ry y. anil i-a ry Small* . UC A U iR lS T IK . ' .CO3-13 Sen i I I Old C 'iwi (Rabco & ; CURISTM. 1 25 Egr :t A (Richm d 1 3 4 , ; 'i o . Da->a (E F ) Dana C aise Publications Imhurst National Bank Bldgark St. at Park Ave., Elmhurst, 111. , E, Harry K. (R ) 40 I., reshore Ave., Oakland, Calif, tfeslc m Refractories Co.) XAH lO CH EE BRICK CO. ,-'aul . D ark) Chattahoochee, Ga. : ; T A I. )OGA G LASS CO. 'oe C Venable) Chattanooga 10, Tenn. Frederic de Bagncaux et Appert Ferres 1 x g/Loing 'f.e Marne, France ! ; Y . L. Alfred, N . Y. *s S. (G) h Plate Glass Co. way Center, Pittsburgh, Pa. A. E. (B) 'vision, Poor & Co. irket St., Waukegan, IU. John H . (F ) el Co., Ltd. \ Development Dept. House,'-' Moorgate i, York, England a r DWARE IY CO. Gt-raghty) North Chicago, IU. : P OTTERY CO. rd) 1920 Clybourn Ave. , IU. REOUS CORP. ogenson) 1425 S. 55th Court III. ii` seph H. (R ) 1 lit., N ., Arlington 1, Va. ( Ships, Navy Dept.) mi L., Jr. (S ) i ick & Tile Co., Box 4S0 i to inn on G. (B ) rk St., Owensboro, Ky. icctric Co.) n E.. Jr. (EJ) -s Ave., Apt. A i c mu , Md. p.) \ (W) i amf i i i Is Co., W est Paris, Me. 5 'in mic Plant, Peitou, Formosa f China an py (J) :i Rd., Kowloon, Hong Kong Vincent E. J. (G) Ave., Anderson, S. C. ruing Fiberglas Corp.) air `iCHT OYD & W H ITE CO. Ebersole) 610 W . 57th St. : ( . IU. Ven (G) n Ave., Newark, Ohio Co., Inc.) 0 . I. (E) y H ill Rd. Ul l j IB;. '0, N . Y . .nan S. 137 Queen's Rd. Jia -N, Cart J. (B ) of Utah 1Aty 1, Utah M, Chr. ihagen Porcelain y & The Faience y Aluminia 1.1! e 45, Copenhagen F., Denmark mard D ., Jr. (R ) Beach Ave. SO ! wieh, Conn, v Wilcox Co.) Brian B . (W ) Ave., Metuchen, N . J. Radiator Co.) CHRISTMAN, C. E. (E) Federal Enameling & Stamping Co. Pittsburgh, Pa. CHRISTMAN. H. M. (RI) 1023 Roosevelt, N . E., Massillon, (Massillon Refractories Co.) CHRISTOPHER, A. B. (S) Chambers Bros. Co., 52 & Media Philadelphia 31, Pa. Ohio CHU, Gordon P. K. (E ) Research Laboratory, Pfaudler Co. 1000 West Ave., Rochester 3, N . Y. CHUN, Lee 230 Prince Edward Rd. Kowloon, Hong Kong CHUTTER, George A . (M ) Middle Haddam Rd., Portland, Conn. CIA. MEXICANA D E REFRACTARIOS A. P . GREEN, S. A. (H . Fetter) Hamburgo 51, Apartado Postal 71 Bis Mexico, D. F. CICHOWSKI, V. J. (E) Fusite Corp., 6000 Fernview Ave.Cincinnati 13, Ohio CINCINNATI MILLING PRODS. DIV. CINCINNATI M ILLING MACHINE CO. (Hayward A. Gay) 4701 Marburg Ave., Cincinnati 9, Ohio CLARE, Robert L. (S F I) 212 Rector St., Perth Amboy, N. J. CLARK, Alee W. Beatson, Clark & Co., Ltd. Rotherham, York, England CLARK, C. Burton (R ) 1766 Meadowcrest Dr. Pittsburgh 28, Pa. (Harbison-Walkcr Refractories Co.) CLARK, Daniel J. (S ) Vitro Mfg. Co., 60 Greenway Dr. Pittsburgh 4, Pa. CLARK, Horace N . (R) Refractory & Insulation Corp. 120 Wall St., New York 5, N . Y. CLARK, James L. (S ) 5 Stuart St., Denver, Colo. (Robinson Brick & Tile Co.) CLARK, John D. (X I) 656 Lindley Rd., Glenside, Pa. (Foote Mineral Co.) CLARK, John R,, Jr. (S ) Washington Brick Co., Muirkirk, Md. CLARK, Paul M. (S ) Chattahoochee Brick Co. Chattahoochee, Ga. CLARK, Richard E . (M I) Sparta Ceramic Co. East Sparta, Ohio CLARK, Roland J. (M ) Precision Grinding Wheel Co., Inc. 8301 Torresdalc Ave. Philadelphia 36, Pa. CLARK, Thaddeus J. E . (W ) 113 Elmore Ave., Trenton 9, N . J. (Trenton Potteries Co.) CLARKE, Ford K . (G) Philco Corp., Church Rd., Lansdale, Pa. CLARKE, James A. Bilston Foundries Ltd. Highfields, Bilston, Staffs, England CLAUS, Karl M. (W ) Mosaic Tile Co., Pershing Rd. ZanesviUe, Ohio CLAY. Wilfred (E ) Kaiser Metal Products, Radcliffe St. Bristol, Pa. CLAYBURN CO,, LTD, (R. M. Hungerford) 850 W. Hastings St. Vancouver 1, B. C., Canada CLAYCRAFT CO. (Phillip W. Tefft) Box 866, Columbus 16, Ohio CLAYPOOLE, Stewart A. (G) R.R. 2, Painted. Post, N . Y. (Corning Glass Works) CLF.EK, Given W . (G ) National Bureau of Standards Washington 25, D. C. CLEMENS, August, Jr. (M ) 205 E . Gittings Ave., Baltimore 12, Md. (Arerods Corp.) CLEMENS, Eugene C. (SI) Cannelton Sewer Pipe Co. Cannelton, Ind. CLEVELAND, George B. (B ) California State D iv. of Mines Ferry Bldg., San Francisco 11, Calif. CLEVELAND MUSEUM OF ART (W illiam M. MUliken) Cleveland 6, Ohio CLEVELAND, Theodore K. (G) Philadelphia Quartz Co. of California -Sixth & Grayson Sts. Berkeley 10, Calif. CLEVENGER, Thomas R. 7 Bartlett St. New Brunswick, N . J. CLEVER, William R. (G) 401 N . Elm St., Lincoln, IU. (Pittsburgh Plate Glass Co.) CLEVERLY, Robert B. (S I) 22120 Westwood Rd. Fairview Park 26, Ohio (Universal Sewer Pipe Corp.) CLEWS, Francis H. British Ceramic Research Assn. Mellor Laboratories, Shelton Stoke-on-Trent, England CLICK, Roy, Jr. University of Alabama, Box 791 University, Ala. CLIFFORD, J. S. (W ) Chicago Pottery Co. 1920 Clybourn Ave., Chicago 14, 111. CLINE, I. R. (S) Western Bride Co., Danville, 111. CLINE, Robert W . (W I) 377 Main St., East Aurora, N. Y. (Onondaga Pottery Co.) CLINGAN, J. R. T. (R) N iles F ire Brick Co., 165 E. Park Ave., Niles, Ohio CLOSE, Barbara S. 36 Leuox PI., Middletown, N . Y. CLOSE, Paul (G) Owens-Illinois Box 103S-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. (B ) 4403 Sheraton Dr., Parma 29, Ohio (Brush Laboratories Co.) COATES, Bill <SF) Coates Co., Box 935, Austin 65, Texas COBLE, Robert L. (BJ) General Electric Research Lab. Box 1088, Schenectady, N. Y. CODE, Thomas E. (EJ) YMCA, 117 W . Monument, Dayton, Ohio (Frigidaire D iv., General Motors Corp.) COEN, Bernard (W ) Woodbridgc Sanitary Pottery Corp. 500 Green St., Woodbridge, N . J. COFFEEN, William W . (E F I) 1024 Boulevard, Westfield, N . J. (Metal & Thermit Corp.) COFFER, L. Wallace (B ) Extractive Metallurgy Division Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio COFFIN, Leon B. (W ) Andover, N . Y. (Alfred University) COGEN, Saul (S) Davidson Brick Co., 4701 Floral Dr. Los Angeles 22, Calif. COGHILL, H . T. (X ) 2028 Collingswood Rd, Columbus 21, Ohio (Refractories Div., Carborundum Co.) . 10 (1955) i 'b R oster 9 } COHEN, Aaron (S ) Box fOS, Willamina, Ore. (Willamina Cia; Products) COHEN, Alvin J. (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. COHEN, Arthur E. (G) Sylvania Electric Products, Inc. j Cottage Place, Mineola, N. Y. ^ JH EN , Bernard (G) 204 Fall St., Seneca Falls, N. Y. (Sylvania Electric Products, Inc.) COIN, R. H . (E ) Ingram-Richardson, Inc. Jefferson Rd., Frankfort, Ind. COLCORD, John E. (RJ) 342S Ethel Ave. South Bend 15, Ind. (Bendix Products D iv.) COLE, G. Percy (G) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada COLE, Sandford S. (B F I) Titanium Division, National Lead Co. Research Dept., Box S8 South Amboy, N . J. COLE, Sandford S., Jr. (W J) Power Tube D iv., Raytheon Mfg. Co. Waltham 54, Mass. COLE. William R. (MJ) Box 35, Seagrove, N. C. (J. B. Coles Pottery) COLEMAN, Caruthers A. (S ) Big Run Coal & Clay Co. 133 N . Limestone St., Lexington, Ky. COLEMAN, J. C. (G) 3746 Mapleway Dr., Toledo 14, Ohio (Kimble Glass Co.) COLEMAN, Robert L. (S I) 467 Dogwood, Park Forest Chicago Heights, 111. (Chicago Brick Co.) COLEMAN, Thomas B. (S ) 635 Tarboro St., Rocky Mount, N. C. (Nash Brick Co., Inc.) LIER, Roger E. .'70 Techwood Dr., N. W ., Atlanta, Ga. COLLINS, G. F. (G) Pittsburgh Plate Glass Co., Box 750 Henryetta, Okla. COLLINS, Paul F. (W I) Microcast Div., Austenal Labs., Inc. 7001 S. Chicago Ave., Chicago 37, 111. COLLINS, William G. (W I) Johns-Manville Corp., Waukegan, 111. COLONIAL INSULATOR CO. (R. W . Hemphill) 945 Grant St. Akron 11, Ohio COLOSKY. Benjamin P. 1621 Windrew Ave. South Plainfield, N . J. COLUMBIA FIR E BRICK CO. (M. L. Hamaker) 612 First National Bank Bldg. Canton 2, Ohio C O L U M B IA -SO U T H E R N CHEMICAL CORP. (R. W . Miller) One Gateway Center, Pittsburgh 22, Pa. COMEFORO, J. E. (W ) Frenchtown Porcelain Co. Frenchtown, N. J. COMMERCIAL DECAL. INC. (Alfred Duhrssen) Box 759 East Liverpool, Ohio COMMERCIALORES. INC. (Albert R. Eckel) Clover, S. C. COMMONS, Charles H ,, Jr. (W F I) Forest Lane, R. R. 2, Malvern, Pa. (Foote Mineral Co.) COMPAGNUCCI, Julius P. (W ) Eay Ridge Specialty Co., Inc. kes Ave., Trenton 10, N. J. ANHIA PAULISTA MINERACAO (Eduardo C. Simonsen) Hua Boa Vista 84--7 Andar Sao Paulo, Brazil ^ R oster CONARD, John B. (S) 600 Hawthorne Lame, Mansfield, Ohio (Richland Shale Brick Co.) CONDON, Edward U. (G) 2938 Avalon Ave., Berkeley 5, Calif. (Consulting Physicist) CONE, Carrol! (G) 1387 Virginia Ave., Columbus 12, Ohio (E. I. du Pont de Nemours & Co.) CONN, Willi' M. (G) 6312 Indiana Ave., Kansas City 30, Mo. (Consultant) CONNELL, George A. (B) Pacific Coast Borax Co., Box 9128 Station S, Los Angeles 5, Calif. CONNELLY, Daniel S. (R) 2801 N. Park Blvd. Cleveland Heights 18, Ohio (Tocco Div., Ohio Crankshaft Co.) CONOVER, Ray C. (RI) Gladding, McBean & Co. 1006 Alcalde Way, Glendale 7, Calif. CONRAD, Charles E.. Jr. (G) Libbey-Owens-Ford Glass Co. Box 4278, Charleston 4, W. Va. CONRAD, Keith (G) Owens-Illinois 1700 N. Westwood, Toledo 1, Ohio CONROE, Barden A. (G) 93 Gorton St., Corning, N. Y. (Coming Glass Works) CONSOLIDATED GLASS WORKS. LTD. (I. Donen) Box 562 Genniston, Transvaal, South Africa CONSUMERS GLASS CO., LTD. (John N. Jordan) Box 456, Station B Montreal, Que., Canada CONTARDI, William A. (W I) 206 Highland Ave., Metuchen, N J. (Automatic Mfg. Co.) CONWAY, Myron J. 943 Orchard St., Zanesville, Ohio COOK, Eugene M. (G) 509 Broadlawn Terrace, Vineland, N. J. (Kimble Glass Co.) COOK, Herman L. (E F ) 1555 Beardsley Ave., Muskegon, Mich. (Norge Div., Borg-Waraer Corp.) COOK, Leslie J. (M) 1621 Reliea Valley Rd. Lafayette, Calif. (Leslie Cook Laboratories) COOK, Ralph L. (E F I) 204 Ceramics Bldg. University of Illinois, Urbana, III. COOKE, Charles C. (G) 2858 S. 109th St., Toledo 11, Ohio (Owens-Illinois) COOKE, David C. (W I) 25 Chestnut St., Haddonfield, N. J. (Universal-Rundle Corp.) COOKE. Robert S. (E) Industrial Centre # 5 Quebec, Que., Canada (Crane Steelware, Ltd.) COOKE. William C. (G) Blue Ridge Glass Corp. Kingsport, Term. COOMBS, W. M. (G) Owens-Illinois Bridgeton Plant No. 14, Bridgeton, N. J. COOPER, Alfred R. (G) 13 Old Flintlock Rd., Bloomfield, Conn. (Hartford Empire Co.) COOPER, George I. (W ) 401-Mackley Apts., Philadelphia 24, Pa. (Signal Corps Supply Agency) COOPER, Joseph Knoxville, Tioga County, Pa. COOPER, Walter W. (M) Dow Chemical Co. Inorganic Chemicals Sales Midland, Mich. COOPER, William G. (W ) Box 204, Strongsville, Ohio (Ferro Corp.) COORS PORCELAIN CO. (H . W. Ryland) 600 Ninth St. Golden, Colo. COPE, William E. (M) Barclay Machine, Inc. Box 146, Sebring, Ohio CORBAN, Wilbur H. (W ) 3198 Dresden Rd., Zanesville Oh: (Ceramic Supply Co.) ' 0 CORBETT, Keith T. (E) 202 Blanchard PI., Donclson T - ,, (Ferro Corp.) ' n* CORBMAN, Morriss (S ) New Jersey Shale Brick & Tile r Box 249, Somerville, N. J. '"orP- CORDES, John E. (W I) 5333 Humboldt Ave., S. Minneapolis 19, Minn. (Lithium Corp. of America Inc 1 CORHART REFRACTORIES CO. im(Frederick S- Thompson) 1600 W. Lee St., Louisville 10 lt,, CORNING GLASS W ORKS ' y` (Howard R. Lillie) Coming N v CORNISH, Frank L. (G) Coming Glass Works, Charleroi P, Co r n w e l l , George l . (B ) ' 171 Eiseman, Kenmore 17, N. Y (Exolon Co.) CORSON, Robert (GJ) 203 E. Valley St., Endicott, N V CORWIN, Rudolph E. (W ) Applied Physics Laboratory University of Washington 1013 E. 40th St., Seattle 5. Wash COTTON, Nigel Elijah Cotton Ltd. Nelson Pottery, Hanley Stoke-on-Trent, Stafford, England COUCH, Albert H. (RFI) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio COUGHANOUR, L. W. (B) 4094 Ben Lomond Dr., Palo' Alto, Calif. (General Electric Microwave Labj COUNTS, William E. (B) 1649 Euclid 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. R. (EJ) 743 S. Osborn Ave., Kankakee, 111. (A. O. Smith Corp.) COURTER, R. F. (M) Globar Div., Carborundum Co. Niagara Falls, N. Y. COURTNEY, Scott J. (M) B. F. Drakenfeld & Co. 45-47 Park PI.. New York 7, N. Y. COUTANT. Edward R. (G) General Electric Co., 1285 Boston Ave. Bridgeport 2, Conn. COVAN, H. E. (S) R. R. 3, Box 10, Bryan, Texas COWAN, J. G. "Roselands," Billington Haughton, Staff, England (Universal Grinding Wheel Co.) COWAN, R. Guy (D F) 416 Brooklea Dr., Fayetteville, N. Y.- (Onondaga Pottery Co.) COWAN. Robert E. Westinghouse Atomic Power Div. Box 1468, Pittsburgh 30, Pa. COWELL, J. Robert, Jr. (G) Woodville Lime Products Co. 2140 Jefferson Ave., Toledo 2, Ohio COWLES, Robert J. (W ) Quality Components, Inc. St. Marys, Pa. COWLES. Roderick J. (R) Lebanon Steel Foundry, Lebanon, Pa. COWLING, Kenneth W. 79 Norwood Rd. Sheffield 5, England (Thos. Marshall & Co., Ltd.) COX, Edwin H . (E) 20M l Wickfield Ave. Cleveland 22, Ohio (Ferro Corp.) C eramic I'.n C( Cc cu> i l CC cl ; i sL seai- Shau A. J ar I fieri >1 a A1 Tnd, l Y :isl Ci- CF Ci ma' n -ii -mai I! 1on t cl G, J 870 Vitr ci ci du 6 5 D7 58 t Mui NDA 514 Na- v\ E V. C i \ Cl . Ck.\ CK/ CK.'. CK1. J . bit Ol ) y. a I > .1km r .ou is \V ^ ihn tE. (E ) i i Ilommel Co.. 209-13 Fourth Ave. r '.sburgh 30, Pa. aul E. (S F ) 5 i N . Tenth St., Baton Rouge 2, La. ( uisiana Geological Survey) CROCKETT, William E. (X ) 1215 N . Arlington Ave. Indianapolis, Ind. (Sales Engineer) CRONIN CHINA CO. Minerva, Ohio CURRAN, Martin T. Box 562, Alfred, N . Y . CURRAN, Robert (R I) 75-08 35th Ave. Jackson Heights 72, N . Y . (Plibrico Co.) 'y amucl F. (G) : > 'sliurgh Plate Glass Co. ! rarch Lab., Creighton, Pa. CRONIN, Leo J. (R) 56 MacArthur Rd,, Natick, Mass. (Raytheon Mfg. Co.) CURRIE, Thomas E. (S ) 331 W . College Ave., State College, Pa. (Pennsylvania State University) haun M. A. Tobling & Co., Ltd. \Vear .lass Works Cun.!- and. Durham, England V, Jol -. Joel (E ) Victoria Park Ave. it Heights P. O.," Ont;, Canada .aire Products o f Canada Ltd.) . ! . S. (R) - Clay Products Co. gton, Pa. tee G. (E ) ( M. 142th. Milwaukee, W ise. Smith Corp.) id M., Jr. (G ) . .;h Plate Glass Co. cway Center, Pittsburgh 22, Pa. ns W . (R F) it Refractories, Ltd. CRONINGER, George J. (M) A . J. Wahl, Inc., 8 Central Ave. Brocton, N. Y. CRONK, Arthur H . (E ) Rosiclare Lead & Fluorspar Mining Co. Box 76, Rosiclare, III. CRONN, Eduard Steingutfabrik Schwarzwald, G.M.B.H. Hornberg (Schwarzwaldbahn), Germany CROOK, Charles Edmund (W ) Los Angeles Chemical Co. 1960 Santa Fe Ave. Los Angeles 21, Calif. CROOKSTON, James A . (R I) 1224 E . Jackson St., Mexico, Mo. (Harbison-Walker Refractories Co.) CROOKSVILLE CHINA CO. (Harry J. Bennett) Crooksville. Ohio Cement Bldg. CROOM, Henry C. (I) 1 2, Que., Canada 697 College St., Macon, Ga. m D., Jr. (W ) CROSBY, Donald P. (R I) hessland St., Pittsburgh 5, Pa. Harbison-Walker Refractories Co. ' lanufacturing Co.) Fulton, Mo. old H ., Jr. (R J) CROSKEY, Carl D. (W ) tilda, Pa. 5405 Old Frederick Rd. ! Refractories Co.) . Baltimore 29, Md. I V. E. (W F I) (Locke Dept., General Electric Co.) CURRY, William J., Jr. (R) Hiram Swank's Sons, Box 630 Johnstown, Pa. CURTIS, Carl E . (R I) 404 W . Vanderbilt Dr. Oak Ridge, Tenn. (Carbide & Carbon Chemical Corp.) CURTIS, William H , Jr. 1524 E . 33rd St., Baltimore 18, Md. CURTS, R. M. (G) American Potash & Chemical Corp. 99 Park Ave., New .York, N . Y. C U TH ILL, John R. (E ) Enameled Metals Section National Bureau of Standards Washington 25, D . C. CUTLER, Ivan B. (B ) 220 Mines Bldg., University of Utah Salt Lake City 12, Utah CZARNECKI, Kamil B. 75 Queen's Gate . London, S. W . 7, England (Aglite, Ltd.) CZECHOSLOVAK CERAMIC AND GLASS SOCIETY (R. Barta) Technicka ul.c.5 Praha X IX , Czechoslovakia :il Ceramic Products, Inc. Fifth Ave., Columbus 8, Ohio Eugene R. (R I) f St., Milford, Conn. - Refractories Co.) '., James R. ( E l) btout St., Bethesda 14, Md. I Bureau of Standards) , William B. (R I) , Alfred, N . Y . . Research Project) , A. s; (G) n Window Glass Co. rk Way, Pittsburgh 12, Pa. !.. CH ATTANOOGA D IV . Hamilton) i Alton Park Blvd. oga 1, Tenn. fenry E. (G ) Chemical Co. W . R . Grace & C o., B ox 324 mrlcs, La. 0 . George E. (W F I) liner Ave., New Castle, Pa. sal-Rundle Corp.) f>. George S. (M ) i Council of Alberta ty of Alberta i, Alta., Canada ), J. C , Jr. (R ) in ville Sales Corp. th St., New York 16. N . Y. D, J. L. (R FI) ne Apts., 4475 W . Pine Blvd. s 8, Mo. Valter F. (R ) & W ilcox Co. 1ional City Bank Bldg, i 14, Ohio 'am C. (R I) Ceramics, Inc. Columbia, S. C. orton (G ) I-Empire Co. '.Stead Ave., Hartford 2, Conn CROSS, A. H. B. Brown-Firth Research Lab. Princess St., Sheffield 4, York, England CROSSAN. W. A. (S) Metropolitan Brick, Inc. 1017 Rcnkert Bldg., Canton 2, Ohio CROSSLEY M ACHINE CO. (W illiam J. Harris) 301 Monmouth St. Trenton 9, N. J. CROWE. Samuel H .. Jr. (G) 416 Mississippi Ave., Crystal City, Mo. (Pittsburgh Plate Glass Co.) CROWELL, Robert W. (G) Kimble Glass Co., 711 Southwood Ave. Columbus 7, Ohio CROW LEY, Henry L. (B) 1 Central Ave., West Orange, N. J. (Henry L. Crowley 6t Co., Inc.) CROWLEY, Michael S. (R JI) 244 Allegheny, Park Forest, 111. (Standard Oil Co.--Indiana) CRUIKSHANK. C. L. (M) Great Lakes Foundry Sand Co. 720 United Artists Bldg. Detroit 26, Mich. CUMMINGS, J. M. (M ) British Columbia Cement' Co., Ltd. B. C. Cement Bldg. Victoria, B. C., Canada CUM M INS, Arthur B. (B) Morning Glory Rd., Bound Brook, N . J. (Johns-Manville Corp.) CUM M INS, Robert K. (G) General Electric Co., 1133 E. 152nd St. Cleveland 10, Ohio CUNLIFFE..J. A. (S) 266 Seventh St. Medicine Hat, Alta., Canada (Medicine Hat Brick & Tile Co., Ltd.) CUNNINGHAM . James A. (S ) Adams Clay Products Co., Box 226 Martinsville, Ind. CUNNINGHAM , Robert J. (G) 56 W. Channel St., Newark, Ohio (Owens-Coming Fiberglas Corp.) D D'A D R IA N , Vincent L. D. (G ) Mississippi Valley Research Lab., Inc. 901 S. 18th St., St. Louis 3, Mo. DAGER, Probert W . (M FI) 5628 Greenbush, Van Nuys, Calif. (H . C. Spinks Clay Co.) DALE, Alfred J. Johnson Bros. (H anley) Ltd. Stoke-on-Trent, England DALEY, Frank E. (M ) Godfrey L. Cabot, Inc. 39 Glen D r , Yardley, Pa. DALTON, Robert H . (G ) 234 Delevan A v e , Corning, N. Y. (Coming Glass Works) DAMERELL, Marguerite (W ) Exton, Pa. (Damerell Mfg. Co.) DANIELSON. R. R. (EFI) Metal 3c Thermit -Corp, Carteret, N . J. DANK. Milton (G) Owens-Illinois, General Research Div. Toledo 1, Ohio DANKS, William H. (G) 216 Mississippi A v e , Crystal City, Mo. (Pittsburgh Plate Glass Co.) DARBY, George M. (M ) 61 Washington A v e , Westport, Conn. (Dorr-Oliver, Inc.) DARLING, D . G. (S ) Toronto Brick C o , Ltd. 425 Bayview Ave. Toronto 17, O n t, Canada DARNELL, Harmon C. (S) Murray Tile C o , In c , Cloverport, Ky. DARRAH, W. A. (R) 901 N . Oak Park B lvd , Oak Park, 111. (Continental Industrial Engineers, Inc.) DAS GUPTA, A. K. (W ) Allen-Bradley C o, Milwaukee 4, W ise. DAUMKE, Arthur H. (W ) 44S1 N . California Ave, nil H. (E) CURCIO, Anthony L. (W l) Chicago 25, 111. `er Dr., Turtle Creek, Pa. 21 Church St., Bound' Brook, N . J. (Harshaw Chemical Co.) States Steel Corp.) (Automatic Mfg. Corp.) DAUW ALTER, A. C. (S ) ' LERIAS DEL URUGUAY CURRAN, EDWARD W. S. Dickey Clay M fg. Co. o J. Gcrcar) Comercio 1491 ENG INEERING , LTD. (D. Ryan) 607 Commerce Trust Bldg. j v o, Uruguay Cardiff, Wales Kansas City 6, Mo. 10 (1955) Roster 11 DAVEY, Earl R. (W ) Canadian Ohio Brass Co., Ltd. Niagara Fails, Ont., Canada DAVEY, Frederick K. (B) 20 Seminary Ave., Lutherville, Md. (Friez Instrument Div., Bendix Aviation Corp.) D AVIES, Chester A. (W I) Park Lake Ave., Titusville, N . J. (American Radiator & Standard Sanitary Corp.) DAVIES, Edward G. (G) Dominion Glass Co., Ltd. Wallaceburg, Ont., Canada DAVIES, Thomas H . (G) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. DAVIS, Earl K. (G) Bausch & Lomb Optical Co. Rochester, N . Y. DAVIS F IR E BRICK CO. Oak H ill, Ohio DAVIS, Harry E. (W FI) Universal Potteries, Inc. Cambridge, Ohio DAVIS, H . M. (E) Pennsylvania State University Mineral Industries Bldg. University Park, Pa. DAVIS, James K . (G) 211 Walnut St., Elmira, N. Y. (Coming Glass Works) DAVIS, N . B. (M) Canadian Flint & Spar Co., Ltd. Room 512, 140 Wellington St. Ottawa, Ont., Canada D A V IS, Sam H ., Jr. (W ) 808 N . Howard, Robinson, 111. (W . A . Case & Son Mfg. Co.) DAY, Arthur L. (Honorary, G) SI 13 Old Georgetown Rd. Bethesda 14, Md. DAY, Charles M. (R) Valley Dolomite Corp. Room 902, 915 Olive St. St. Louis 1, Mo. JAY, Frank, Jr. (G) Corning Glass Works, Coming, N. Y. DAY, Jack F. (MI) 835 Forest Ave., Zanesville, Ohio DAY, Loren L. (GJ) 10071/ , Victoria, New Kensington, Pa. (Pittsburgh Plate Glass Co.) DAY, Ralph K. (GFI) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio DAY, Robert B. (SI) 314 East St., Morris, 111. (Morris Clay Products Co.) DEADERICK, James W . (B) 1011 Norvcll Dr. Signal Mountain, Tenn. (American Lava Corp.) DEADWYLER, Earnest W. (I) 2599 Glenmawr Ave., Columbus 2, Ohio DEAR, Paul S. (BFI) Virginia Polytechnic Institute Box 205, Blacksburg, Va. DE BECK, Hubert O. (M) 5105 Belmont, Apt. 3, Houston 5, Texas (Baroid Div., National Lead Co.) DEBENHAM, W . S. (RFI) United States Steel Corp* 525 William Penn PI. Pittsburgh 30, Pa. DECKER, Alfred R. (W ) 811 N . Seventh St., Cambridge, Ohio (Champion Spark Plug Co.) DECKER, Edgar A. (X ) G. S. Robins & Co. 126 Chouteau, St. Louis 2, Mo. DECKER. Edward L. (E) , Summer St., Williamstown, (Pemco Corp.) -DEETH, H. R. (M) American Nepheline Ltd. Lakeiield, Ont., Canada Mass. 12 Roster DEIG NAN, Charles J. (S I) 120 N . Everett Ave., Columbus, Ohio (Claycraft Co.) de LEEUW , Peter Eisenberg & Co., Inc. Central Post Office Box 323 Tokyo, Japan DELGADO, Cyril B. (G) The Glass Industry 55 W. 42nd St., New York 36, N . Y. DeLONG, Hermon W ., I l l (G) 67 Main St., Dansville, N. Y, (Department of Public Works) DEM AISON, R. J. (R) Quigley Co., Inc., 527 Fifth Ave. New York 17, N. Y. DeMARIA, Vincent C. (G) 1468 Wms. Bridge Rd., Bronx 61, N . Y. (Sylvania Electric Products, Inc.) DEM UTH GLASS WORKS, INC. (George F. Young) Box 629 Parkersburg, W . Va. DENEEN, W. F. (M) North Carolina Feldspar Corp. Erwin, Tenn. DEN ERO , John V. (RJ) 125 W. Market St., Alliance, Ohio (Babcock & Wilcox Research Center) D E N IS O N E N G IN E E R IN G CO., T H E (W . C. Denison) 1160 Dublin Rd. Columbus 16, Obio D E N ISO N , George W . (S F ) Ohio Clay Co., Box 1776 Cleveland 5, Ohio D EN ISO N , John C., Jr. (G) John C. Denison & Son Co., Box 63 Rochester, Pa. D E N ISO N , Norman E . (S ) Ohio Clay Co., Box 1776 Cleveland 5, Ohio D E N ISO N , W. C. (M ) The Denison Engineering Co. 1160 Dublin Rd., Columbus 16, Ohio D EN M AN, Cedric E. (S ) Great Bend Brick & Tile Co., Inc. Box 53, Great Bend, Kans. dePROSSE, Victor A . (E l) 17476 Shaw Ave., Lakewood 7, Ohio (Ferro Corp.) DeREMER, John W . (R I) 01 Arizona Dr,, New Kensington, Pa. (American Window Glass Co.) DERGE, Gerhard (X ) Carnegie Institute of Technology Pittsburgh 13, Pa. DERINGER, W . A. (EFI) A. O. Smith Corp. 3533 N . 27th St., Milwaukee 1, W ise. deROUX, Juan Ramon (I) Box 1486, Panama, Rep. of Panama (Clay P r o d u cts Co., I n c .) DERR, Robert H . (W ) Certain-Teed Products Corp. 204 Park PL, Pittsburgh 9, Pa. DER SA R K ISSIA N , Michael Alfred University, Alfred, N. Y. DESA1X, Herbert A. (SI) 122 Jefferson Park Dr. Huntington, W . Va. (Barboursville Clay Mfg. Co.) D E SE N N E , Claude M. (S ) Cote de 1'Eglise Boischatel, Co. Montmorency, Que., Canada (Citadel Brick Ltd.) DESJA R D IN S. Gregory T. (R ) Foster, Ky. (Wheatstone Corp.) DETAMORE, Walter A . (S) Barium Reduction Corp. South Charleston 3, W . Va. DEURVORST, F. B. M. Het Zonnehuis, Terborg, Holland (Koninklijke Fabrieken Dlepenbrock & Reigers N. V.) DEUTSCHE GLASTECHNISCHE GESELLSCH AFT (H . Maurach) Untermainkai 12 Frankfurt A. M., Germany DEUTSCHE KERAMISCHE G ESELLSCH AFT (Mr. KnauD Poppelsdorferallee 15 Bonn, Germany DEU TSCHER, Jerome S. (SI) 415 West Buist, Phoenix. A,;, (Phoenix Brick Yard) D eV IL B ISS CO. (E . F. Frey) Toledo 1, Ohio de VILLE, Ralph W. (I) Harvard University Graduate School of Business Soldiers Field, Boston 63 Ms. DEVLIN, James F. (I) ' ' 219 E. University Pky. Baltimore 18, Md. DeVOE, Charles F. (G) 38 W. Fourth St., Coming, w v (Corning Glass Works) ' *" DeVRIES, Robert C. (B) 2012 Hudson St., Schenectady M v (General Electric Co.) ' * DEWEY, B. F. (W ) 42 Summit St,, LeRoy, N. Y (Lapp Insulator Co.) de W Y S, E. Christiaan Ohio State University Lord Hall, Columbus 10, Ohio DEXHEIM ER, E. C. (E) 917 Country Club Drive St. Louis 21, Mo. DEYO, R. Daniel (R) 104 Dogwood, Park Forest, 111. (United States Steel Corp) DIAM OND ALKALI CO. (L. T. Welshans) Cement-Coke Div 300 Union Commerce Bldg. Cleveland 14, Ohio DIAM OND, Grant S. (RFI) Electro Refractories it Abrasives Coro 344 Delaware Ave., Buffalo 2 N Y ^ DIAM OND, Jacob J. (B) ' ' National Bureau of Standards Conn. Ave. & Van Ness St., N. V,'. Washington 25, D. C. DIAZ, Jose J. (I) Fabrica Nacional de Loza de Pence S. A Box 13, Penco, Chile DICK, Clarence H . (G) 1013 Gordon St., Natrona Heights, Pj. (Pittsburgh Plate Glass Co.) DICKAS, Charles H. (E) 1524 Sunset Rd., Chattanooga, Term. (Samuel Stamping & Enameling Co.) DICKENS, H. A. Nilsen Porcelains (Aust.) Pty. Ltd. 221 Separation St. Northcote, Victoria, Australia DICKEY, Herbert R. (S) 26 Regent S t S t. T hom as, O ut., Canada (Canada Vitrified Products, Ltd.) DICKEY, John M,, Jr. (SI) Windy Knoll, Brookville, Pa. (Hanley Co.) DIENER, Leonard W. (S) Diener Brick Co., Cuthbert &Park Ave. Collingswood, N. J. DIETERT, Harry W. (R) Harry W . Dietert Co., Ingram, Texas DIETRICH, Waldemar F. (B) 2714 P St., N. W,, Washington 7, D. C. (U . S. Bureau of Mines) DIETTERLE, Edwin W. (WI) 3834 Monteith Dr. Los Angeles 43, Calif. (Ferro Corp.) DIETZEL, Adolf Max-Planck-Institut fur Silikatforschung, Wurzburg, German! Neunerplatz 2 DILLARD, William F,, Jr. (S) 2125 E. Side Court, Augusta, G. (Merry Bros. Brick it Tile Co.) DILLENDER, Richard D., Jr. (W) 8 Sunnybrook Trail Signal Mountain, Tenn. (American Lava Corp.) C eramic BuU-bTDI I* s1* V u in DOi vVT lie ;>Oi lei ic i Cie: MOI aies hth Fal Ri u : ro v. vive bO; a J< I 1. P Mir W t. us* late >x ; ?.f G ans aal, Y, ouis ack Lai } aox- Ile, ak dg iC Johi J ( b tte l ftO ering bus 1 WIR* : undu "J;-- 34, No. ,,IA R D , Faul D. (G l) 1313 Kf Wheeling St., Lancaster, Ohio (Anchor Hocking Glass Corp.) LING HAM. Robert P. (W ) 2207 Cheyenne S t., Golden, Colo. (Coors Porcelain Co.) ,,O N , C. L. (G) Catch ford Marble Glass Co. )Box 71707, Los Angeles 1, ON, 7-alc (W ) 16 I nkesidc Dr., Matawan, CAt! ' .ic Tile M fg. Co.) ILF.' INF-, H. F . (S ) Rati 1 ''ewer Pipe Ltd. n.worth St., N . Calif. N . J. II u n i11>m, Ont., Caad? !]'.} `}' t Edward L., Jr. (R ) Box 3 ` 3, Birmingham, Mich. fCaH ndum Co.) '.WA: Andrew (G ) 588 ' .ve St., Upper Montclair, N. J. rr.or ting Scientist) N L, Andrew G. F . (G) 5.8 e St., Upper Montclair, N . J. (F Victor) 1'TFl. V. (R) 17 P l Ave., Tiffin 9, Ohio rinding Wheel Co.) A, r-.G-. ] - - :T Oil A. J- (G ) Potash & Chemical Corp. Ave., New York 16, N . Y. R, Philip R. (W ) 'trifled China Co. , Pelham Manor 65, N. V. . Edward H . (E ) . 1 St. <*, Ont.; Canada e Sanitary M fg. Co., Ltd.) N, / 15 N Lane (D ) nrth St., Burlington, la. N, < van; N. 7. 1 SC } iU ), c ept. iwa iE, azel nt" o: . } Lu i ,c . our. out) - (R) ining Corp., Cullen, Va. iPH , CRUCIBLE CO. ,'ckoff) 167 Wayne St. 3, N . J. W. R. (W I) >outh View Dr. ;ol, Ohio Foundry & Machine Co.) M. (SF I) -.ramie Engineering College, Ames, la. J W . (G) : Glass Co., 126 Market St. Ohio F.. (R ) , n Fire Brick Co. of Ohio " 1 St., Cleveland 3, Ohio :nce J. (I) vr Rd., Niagara Falls, N . Y . rl E. (W ) T nens Potterv Co. i -nens, Mich. H, !.. (E ) o : Ave., Patterson Hts. IV '.Is, Pa. r.hardson M fg. Co.) MINERALS DIV., f N L IM E & STO N E CO., V. Kelsey) ik i nr, Va. H . hn W . (G I) 1- l, oli, Pa. oral Co.) I I Glass Works Ltd. rmiston nth Africa f. (G) ie, R. R, 17 , Venn. National Lab.) , n C. University Experiment Station 0, Ohio I H I. A. L. (RI) i Co., Falconer, N . Y. 10 (1955) DORA, Joseph C. ( E l) 3246 West 62nd PI., Chicago, 111. (Crane Co.) DO RAN, Robert F. (G I) Sylvania Electric Products, Inc. Cottage Pi., Minela, N . Y. DORF, Arthur L. 331 W . College Ave., State College, Pa. DORN, Alvah J. (G) 141 W all St., Corning, N . Y. (Corning Glass Works) DORN, G. Neal (S I) 1015 Kemp Ave., Ironton, Ohio (Carlyle Tile Co.) DORSETT, O. A. (W ) Knox Porcelain Corp., Knoxville, Tenn. DORSEY, Baird L. (R ) 300 Walnut Rd., Pittsburgh 2, Pa. (Jones & Laughlin Steel Corp.) DORSEY, John J. (W I) P. R. Mallory & Co., Inc. 3029 E. Washington St. Indianapolis 6, Ind. DOTY, Henry S. (R ) Commercialofes Ine. . 39 Cortlandt St., New York 7, N . Y . DOUGHERTY, Leon A. (W ) 370 North St., Sun Prairie, Wise. (Wisconsin Porcelain Co.) DOUGHERTY, W- E . (M F ) 1625 Barr Ave., Pittsburgh 5, Pa. (O . Hommel Co.) DOUGLAS, Edward A. (E ) 104 Gainsborough, Apt. 2B Boston, Mass. (Bettinger Corp.) DOUGLAS, Richmond Douglas Firebrick Co., Ltd. Dairy, Ayrshire, Scotland DOUGLAS, R. W. Society of Glass Technology "Thornton," Haliam Gate Rd. Sheffield 10, England DOWLING, Robert F . (G) American Optical Co. Southbridge, Mass. DOWJ4ING, G. N . Pilkington's Tiles ( S A .) (P ty.) Ltd. Box 70, Mcyerton Transvaal, South Africa DRAKE, Arthur D. (S) Claycraft Co., Box 866 Columbus 16, Ohio DRAKE, M. Ellis (D ) Alfred University, Alfred, N. Y. DRAKENFELD, B. F. & CO. (Scott J. Courtney) 45-47 Park PI. New York 7, N . Y. DRAKER, Harry C. (M ) 24230 Maplewood Dr., Euclid 17, Ohio (Harshaw Chemical Co.) DRAMMEHS GLASSVERK (Ragnar Tanbcrg) D rammen, Norway DRAPER. Perry E. (W ) Mansfield Sanitary Pottery, Inc. Perrysville, Ohio DRESSLER, Philip (MFI)' Swindell-Dressler Corp., Box 1888 Pittsburgh 30, Pa. DREYLING, Lewis J. (R ) 229 Milltown Rd., Milltown, N. J. (Quigley Co., Inc.) DROUHARD, W. J. (W I) Mansfield Sanitary Pottery, Inc. Perrysville, Ohio DRUCKER, Julius Farbenfabriken Bayer Aktiengesellschaft Krefeld-Uerdingen, (22a) Deutschland DRUMMOND, W. W . (G) 5504 Midmoor, Madison 4, Wise. (Bjorksten Research Laboratories) DuBOIS, Harold V. (W ) 4147 159th, Lawndale, Calif. (Vernon Kilns) DuBOIS. H. B. (MFI) Consolidated Feldspar Dept. International Minerals & Chemical Corp. Erwin, Tenn. DUCHE, Frederic Compagnie Generale d'Eltro*Ceramique 12 rue de la Baume, Paris 8, France DUCKW ORTH, Winston (B I) Battdlc Memorial Institute 505 King Ave., Columbus 1, Ohio D U DDING , B. P. International Commission on Glass Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, England D U E , Herbert J. (W ) 11 Scoles Ave., Clifton, N. J. (S t. Joseph Lead Co.) DU E V EL, Charles O., Jr. (G) American Thermos Bottle Co. Norwich, Conn. D U E Y , Robert K. (S ) Southern Lightweight Aggregate Corp. Box 205, Richmond 1, Va. DUFF, R. D. (G) 4318 Commonwealth, Toledo, Ohio (Owens-Illinois) DUFFY, J. P. (S) Stillwater Clay Products Co. Lock Drawer 32, Uhrichsville, Ohio D U F O U R , Jean Leonard Ceramics Sanitaria Porcelite S. A. Caixa Postal 2818, Sao Paulo, Brazil D U FR ESN E, Robert S. (R) 3125 Fairmount, La Crescents, Calif. (Gladding, McBean & Co.) DUG AN, Robert T. Box 1844, Midland, Texas DUG AN, Stayner A. (S ) Box 1844, Midland, Texas (Dugan Brothers) DUGGAN, J. J. (R ) Walsh Refractories Corp. 101 Ferry St., St. Louis 7, Mo. D U H R SSEN , Alfred (D ) Commercial Decal, Inc. Box 759, East Liverpool, Ohio D U K E, John J. (W ) Box 33, Saxonburg, Pa. (Du-Co Ceramics Co.) DULBERG, Irving (R ) 254 N . Allegheny St., Bellefontc, Pa. (J. H . France Refractories Co.) D U LIN , Francis H. 7728 Westmoreland D r., Sarasota, Fla. DUNBECK, Norman J. (R) International Minerals & Chemical Corp. 20 N . Wacker Dr., Chicago 6, 111. DUNCA N, Beverly W . (B ) Alloy Precision Castings Co. E. 45th St. & Hamilton Ave. Cleveland 12, Ohio DUNCA N, J. Earle (G) Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. DUNCAN. Russell F. (E ) 209 Franklin Dr., Berea, Ohio (Ferro Corp.) DUNCOMBE, George H ., Jr. (SF ) 150 E . Frambes Ave., Columbus 1, Ohio (Evans Brick Co.) DUNG AN, Robert H . (B ) Box 261, Hopkins, Minn. DUNN, H. E. (B) Suite 206, 300 Mt. Lebanon Blvd. Pittsburgh 34, Pa. (Vanadium Corp. o f America) D U N N , Peter E. (G) Rauland Corp., 4245 N . Knox Ave. Chicago 41, 111. D U N N IC A N . Ward G. (G ) 277 E. Seventh St., Clifton, N. J. (Bccton, Dickinson & Co.) D U PLIN , V. J., Jr. (B F ) 300 North Ave., Fanwood, N. J. (Babcock & W ilcox Co.) du P O N T , E . L, de NEM O U R S & CO., IN C . (John M. Olsen) Electrochemicals Dept. Wilmington 98, Del. Roster 13 ,,URHAM, Carl T. (E ) . 2156AEastern JPfcy. .. Schenectady, N . Y . (General Electric Co.) ,,RST, William A. (X ) 209 Madison St., St. Marys, Pa. (Stackpole Carbon Co.) (JSZA, Joseph T. (R ) I Harbison-Walker Refractories Co. 4343 Kennedy Ave., East Chicago, Ind. pUWEZ, Pol (B ) California Inst, o f Technology Pasadena, Calif. pYNES, Marvin W. (G) Van Dyne Quartz Works Box 380, R.'R. 1, St. Charles, 111. pyRE, Warren T. (E) 317 Estaugh Ave., Haddonfield, N. J. (Universal-Rundle Corp.) E EAGLE, J. Eugene (M P I) 3202 McShane W ay, Baltimore 22, Md. (Pemco Corp.) EAGLE-PICHER CO. (D . R. Carter) American BIdg., Cincinnati 1, Ohio EARHART, William H . (G ) RCA Victor, Engineering Dept. S. Adams St., Marion, Ind. EARL, Fred C. Box 84, Broadalbin, N . Y. EARL, J. Alfred (W ) 1621 S. El Molino St., Alhambra, Calif. (W . G. Johnson T ile Co.) EASTER, George J. (R F I) ' Electro Refractories 8t Abrasives Corp W illett Rd., Buffalo 19, N. Y. EBERSOLE, Robert A. (R ) Chisholm, Boyd & W hite Co. 610 W . 57th St., Chicago 21, 111. ECKEL, Albert R. (R ) Commercialores, Inc., Clover, S. C ECKEL, Harold A. Trinidad Clay Products, Ltd. . 44, South Quay, Port of Spain i Trinidad, B. W . I. vKLEY. J. R. (R) Aluminum Co. o f America 1501 Alcoa Bldg., Pittsburgh 19, Pa. ECONOMOS, George (W ) 394 Riverway, Suite 9, Boston 15, Mass. (Massachusetts Institute of Technology) EDGAR, AUen C. (M ) Edgar Plastic Kaolin Co., Edgar, Fla. EDGAR, Clement B . (R ) M. H . Detrick Co., 1620 Oliver Bldg. Pittsburgh 22, Pa. EDGAR PLA STIC K A O L IN CO. (Allen C. Edgar) Edgar, Fla. EDLIN, Vernon (B ) 6712 Chappel Ave., Chicago 49, III. (Armour Research Foundation) EDWARDS, F. M. (W ) Porcelain Products, Inc., Carey, Ohio EDWARDS. J. B. (S) Reliance Clay Products, Box 13226 Dallas 20, Texas EDWARDS, William R. (W I) 11926 S. Saginaw Rd. Grand Blanc, Mich. (AC Spark Plug Div., General Motors Corp.) EELLS, H. P,, Jr. (R ) Basic Refractories, Inc. 845 Hanna Bldg., Cleveland 15, Ohio EGERTON, Lawson (B ) Bel! Telephone Labs., Inc. Murray Hill, N . J. EHLERS, G. Milton (W ) Aerovox Corp., 742 Belleville Ave. New Bedford, Mass. EHMAN, Roy G. (GI) >00 S. Allen St., State College, Pa. (Pennsylvania State University) "uiRLICH, Raphael H . (S ) 4039 N . Centrai Expressway Dallas 4, Texas (Crown Brick M fg. Co.) V0L. 34, No. 10 (1955) EICHBAUM , Barlane R. 195 Bevier Rd., New Brunswick, N . J. E ID E , Alwin C. (E ) American Zinc Sales Co., Box 327 Columbus 16, Ohio EISE N , John B. (R ) Box 27, Waterloo, Wise. (Bjorksten Research Labs., Inc.) EISENBERG , Mrvin (R) Montaine Corp., 7127 S. Chicago Ave. Chicago 19, 111. EITEL, Wilhelm (B I) Dir. of Inst, of Silicate Research University of Toledo, Toledo 6, Ohio EK DAH L, W . Graydon (G) Johns-Manville Research Center Manville, N. J. EKHOLM, L. G. (R I) United States Steel Corp. 525 William Penn PL, Rm. 3+23 Pittsburgh 30, Pa. EL DER, J. C. (W I) Robertson Mfg. Co., Box 848 Trenton 5, N . J. EL ECTRIC A U T O -LITE CO., SPARK PLUG D IV . (Robert Twells) Box 231, Fostoria, Ohio ELECTRO REFRACTORIES & ABRASIVES CORP. (Grant S. Diamond) 344 Delaware Ave., Buffalo 2, N. Y. ELJER CO., Enamel-Ware Div. (L. A. Bateman) Salem, Ohio ELLARD, Earle R. (R I) 344 Clinton Ave., Tiffin, Ohio (Basic Refractories, Inc.) ELLEFSON, B. S. (G) Sylvania Electric Products, Inc. 1740 Broadway, New York 19, X . Y. ELLIOTT, Amos W. (B) Covered Wagon Ranch Cloverdale, Calif. ELLIOTT, C. Franklin R.R. 3, Box 192, Henderson, N. C. ELLIO TT, George Thomas Lawrence & Sons (Bracknell) Ltd. Molly Millars Lane, Barkham Rd. Wokingham, Berks, England ELLISON, Henry W. (G) 169 E. Third St., Corning, N . V. (Corning Glass Works) ELLISON, R. W. (R) 1551 E.- Loma Alta Dr. Altadena, Calif. . (Gladding, McBean.8c Co.) ELMER, Thomas H . (B) 219 E. High St.', Painted Post, N . Y. (Corning Glass Works) ELO SUA, Bernardo (S ) Ladrillcra Monterrey, S. A. Box 360, Monterrey, N. L., Mexico ELSTON, Keith (W I) 117 Somerset Ave., Pittsfield, Mass. (General Electric Co.) ELY, William G. (G) Pittsburgh Plate Glass Co. 1 Gateway Center, Pittsburgh 22, Pa. EM ANUEL, E . C. (G) Armstrong Cork Co. Research & Development Center Lancaster, Pa. EM HART MANUFACTURING CO. (W . H . Shorter) 333 Homestead Ave. Hartford 2, Conn. EM HISER, Donald (R) 1105 Eighth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) EM ISON, M. Hershel (G) Corning Glass Works Charleroi Div., Charleroi, Pa. EMLEY, William S. (R ) W. Maitland Lane, R. R. 3 N ew Castle, Pa. (Shenango China, Inc.) EMMERICH. Liberata (B) Pennsylvania State University Mineral Industries Library University Park, Pa. EMR1CH, Allen H . * 1799 Franklin Ave., Columbus S, Ohio EMRICH, B any R. (I) 398 S . Seventh St., San Jose, Calif. EMRICH, Emerson W . (M I) R. T . Vanderbilt Laboratories East Norwalk, Conn. EMRICH, Harold W. (S I) 1525 Filbert Court, Denver 20, Colo. (Denver Sewer Pipe & Clay Co.) ENBERG, Christer Tegellaboratoriet (Brick Laboratory) Drottning Kristinas vag 45 Stockholm O, Sweden ENGEL, Juan J. R, Casilla Correo 2394 Buenos Aires, Argentina (Mctalum S.R.L.) ENGLERT, WUliam J. (G) ManorviUe, Pa. * (Pittsburgh Plate Glass Co.) ENGLISH CHINA CLAYS SALES CORP. 551 Fifth Ave., New York 17, N . Y. E N H U S, Haus Gosta ktiebolaget Malardalens Tegelbruk Ericsbergsgatan 27 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, Charles R. (R ) 74-13 Drex Brook Dr. Drexel Hill, Fa. _ (Refractory Specialties Co.) ENO S, W . Kenneth 607 Rutledge Ave., Charleston, S. C. E P S T E IN , Edward, Jr. (R ) Laclede-Christy Co. 4705 Ridgev+ood Ave., St. Louis 16, Mo. ERARD, Edward (G) Vidrio Neutro, S. A. Prolongacion Calle de la Rosa No. 9, Atzcapotzalco, D . F., Mexico ERFE, Carmelo Craftsman Bldg. San Marcelino 8t Ayala Sts. Manila, Philippines ERICKSON, A. Alfred (G) 84 Pershing St., Coming, N. Y. (Corning Glass Works) ERICKSON, Allen J. (G) 4844 38th Ave., N .E., Seattle 5, Wash. (Northwestern Glass Co.) ERIE RESISTOR CORP. (Bobby L. Joyner) -644 W . 12th St., Erie, Pa. ERNST. Dolly M. (D ) . Box 571, R. R. 4, Loveland, Ohio ERNST, Walter S. (M ) 2728 E. Fifth Ave., Knoxville, Tenn. (Volunteer Portland Cement Co.) ERSLEY, Chauncey J., Jr. (GJ) 76 Billups Dr., Lawrenceburg, Ind. (Thatcher Glass M fg. Co.) ERSLEY, Emmett J. 330 Irvine PL, Elmira, N . Y . ERVIN, Guy, Jr. (B ) Research Laboratory, Norton Co. Worcester, Mass. ERWIN, Lee R. (E ) ' 209 S. Sunset PL, Monrovia, Calif. (Affiliated Gas Equipment, Inc.) ERZEN, Frank C. (E ) 731 S . Greenberry Dr. West Covina, Calif. (Bulwark Corp. of America) ESCHENBURG, Robert L,, II Floresville, Texas ESP E R SE N , Karen Holmegaards Glasvaerk Holme-Olstrup, Denmark ESSELSTYN, Willard A. (G) c/o American Embassy New Delhi (Mail Room) Department of State Washington 25, D. C. . R oster 15! *:'T Joseph F . ,(W ) f net Pofteries, Inc. idea Lane, Dundee, 111. c cV EDGE,'Otis K. (M ) 252, Gordon,* Ga. them Clays, Inc.) c!'!' K, William R. (B ) it. 3, Box 57, River Falls, Wise, nnesota Mining & Mfg. Co.) !)( KS, Alfred G. (E ) n Stella Court, Kensington, Md. tonal Bureau of Standards) r- George R. (R ) unmitt St., McKeesport, Pa. - States Steel Corp.) f c a s e co. :d F. Reilly, S r.) 21 East S t h A itici,oro, Mass. gV ! Charles E . (M ) 'uithglen Dr., Columbus 11, Ohio li'iro Alloy M fg. Div., - ii Lead Co.) V -ir! Owoi (G ) iniRn Ave., Mapleview ' 3' E" * \ J 2 i" V? E ` f: / > i' ; ) 1 7' \ V. . 1 1 v *s Works) a* J.* late fe Metal Stamping Co. . :wartlienshire, Gr. Britain 1 D CORP. (R. M. Evans) ' harhston 25, W . Va. : O. , ID) i li vii ( Ohio . hard F . (W ) io C ina Co. Ave., Syracuse 9, N . Y. . (M) . '*' iorp. rton 25, W . Va. . (::) t ok St.. Brazil, Ind. lie Corp.) :1 (S) G>., Uhrichsvillc, Ohio rtlon wortli & Bros. Ltd. o' -t Works ...* he on-Trent, England " i W. (SI) Ave., Dover, Ohio `roduct Co.) - (SFI) q criment Station iversity Ohio '! . (R) *oduets Co. A- W*>odward Ave. . f . Y. R. (M ) 1, Monclova, Ohio 'iiition Corp.) f'V I) *.*iy Pottery it- Tarvr.y J. Robillard) va St., Tonawanda, N . Y . B. (R ) & Tile Co., Box 415 F ampaign, 111. T.. (R F I) / Co, ' / vc., St. Louis 16, Mo. IM LLOS LES, y n o s, S. A. io'uia Gomez) V - terrey, N. L., Mexico XANA da '. LDA . e Quntela No. 3 FACKLER, Ernst G. Apartado Aereo 6108 Bogota, Colombia (Vdrio S . A .) FACKT, George P. (S F ) 408 Paseo del Mar, Box 878 Palos Verdes Estates, Calif. (Redondo T ile Co., Ltd.) FADANELLI, Louis H. 1132 S. California Ave., Chicago, 111. FAGG, Leo W. (E) Johnson-Fagg Engineering Co. Box 7157. Tulsa, Olda. FAHKENBRUCK, William O. (GI) R.R. 1, Box 95, Tiffin, Ohio (Sterling Grinding Wheel Co.) FAILMEZGER, Howard (W FI) Victor Insulators Div., I-T -E Circuit Breaker Co. Maple Ave., Victor, N. Y. F A IN , Charles C. 789 Glendalyn Ave., Spartanburg, 5 . C. F A I REACTS CO., IN C . (J. Ryan Smith) Fairfacts St., Trenton 8, N . J. FALCONER, Donald P . (R ) 1018 Maple Ave., Evanston, 111. (Sales Engineer) FALLON, Frank J. (W I) 2662 Lamar, Denver, Colo. (Coors Porcelain Co.) FALTER, Arthur H. (G) 8635 Jacob PL; Niagara Falls, N . Y . (Carborundum Co.) FANDERLIK , Milota Nerndova 10 Hradec Kralove, Czechoslovakia FRBER, Louis G. (D I) Ceramics Monthly, 4175 N . High St. Columbus 14, Ohio FARGO, Jarvis J. (G) 28 Wilson St., Corning, N. Y. (Corning Glass Works) FARKAS, Howard (M ) United States Stoneware Co. 60 E. 42nd St., New York 17, N . Y. FARR, Archie E . (E ) O. Hommel Co., Box 475 Pittsburgh 30, Pa. FARROW, Lewis C. (E ) R.R. 1, Clyde, Ohio (Whirlpool Corp., Clyde Porcelain Steel D iv.) FASO LD. G. A. (E ) 7329 Bernard Ave., Cincinnati 31, Ohio (Philip Carey Mfg. Co.) FAULKNER, Karl B. (R ) Corning Glass Works, Corning, N. Y. FAUST, Ernest'H., Jr. (R I) 3129 W hitney Ave., Mt. Carmel, Conn. (American Refractories and Crucible Corp. FA U ST, George T. (B ) 9907 Capitol View A v e .. Silver Spring, Md. (U . S. Geological Survey) FAY, Wayne X. (RI) General Refractories Co. 202 Oxford HOI Lane, Havcrtown, Pa. FEAGIN, R. C. (B I) Austenal Laboratories, Inc. 224 E . 39th S t., N ew York 16, N . Y. FEDERAL GLASS CO. (Henry H. Blau) 515 E . Innis Ave. Columbus 7, Ohio FEDERAL SEABOARD TERRA COTTA CORP. (O . E . Mathiasen) Box 301, Perth Amboy, N . J. FEDOCK, Michael P . (R ) 4214 Ashwood Dr., N . W . Canton 8, Ohio (Republic Steel Corp.) FEINBLOOM, David T. Box 653, Alfred, N. Y. FELD, Philip Box 747, Alfred, N . Y. FELDM AN, Gall H. 43 Villa Ct., Hempstead, N . Y . .FELKER, Ernest (W ) 8408 Summer Rd., Northfield, Ohio (Ferro Corp.) FELLOWS, R. L. (E F I) 748 N . Kensington Ave., La Grange, III. (Century Vitreous Enameling Co.) FELS. C. G. (R I) 11 DeForest Ave. North Plainfield, N . J. (Fels Refractories, Inc.) FENITY, Robert D. (W ) 1116 Belrose Rd. Mayfield Heights, Ohio (Horizons Ine.) FENSTERM ACHER, John E. (RJ) 1320 Fifth Ave,, Worthington, Minn. FENTON, Walter M. (E ) Lithium Corp. o f America, Inc. 2560 Rand Tower, Minneapolis 2, Minn. FENTZKE, A. Daniel (R ) 96 Center Lane, Levittown, N . Y . (Babcock & W ilcox Co.) FERD IN A N D , George (R ) 7113 Fishbum* Ave., Bell, C a lif,. * (Consultant) FERGUSON, Donald Box 929, Alfred, N . Y. FERGUSON, Douglas J. (D ) Pigeon Forge Pottery Pigeon Forge, Tenn. FERGUSON, D . Robert, III (R) 401 Vine St., East Liverpool, Ohio (Crescent Brick Co., Inc.) FERGUSON, Robert F : (G) 1765 Caleb Dr., Zanesville, Ohio (Hazel Atlas Glass Co.) FERGUSON, Robert L. (S ) Yankee Hill Brick Mfg. Co. 728 Stuart Bldg., Lincoln 8, Nebr. FERON, Marcel Administrateur-delegue Societe Beige de Ceramiqui "Cerabel" Rue d'Hercbies, Baudour, Belgium FERRIS BRICK CO. (R. T. Wilson) Box 188, Ferris, Texas FERRIS, Harry Philip (R ) 20 Birch Dr., Levittown, Pa. (Simonds Abrasive Co.) FERRIS, James E. (G) Niagara Alkali Co. 60 E. 42nd St.. New York 17, N . Y. FERRO CORP. (R. A. Weaver) 1 ..4150 E. 56th S t , Cleveland-'5, Ohio FERRO ENGINEERING-CO. (Benjamin F. Anthony) 1400 Hanna Bldg., Cleveland 15, Ohio FESLER, Ray T. (W ) A A A . Corp-, Box 815, Gadsden, Ala. FESSLER. A. H. (W FI) Fenton, Mich. (A C Spark Plug Div. General Motors Corp.) FETTER, H. (R) Cia. Mexicans de Refractarios A. P. Green, S. A., Hamburgo 51 Apartado Postal 71 Bis, Mexico, D . F . FETTERLEY, Guy H. (R) Box 26, Chippawa, Ont., Canada (Norton Co.) FETZER, George W . (M ) 1205 17th Ave., Columbus 11, Ohio (George Fetzer Ceramic Supplies) FEYLING , Claus A. Eie Stentffifabrik Egcrsund, Norway FIBERGLAS CANADA, LTD. (John MacRae) Box 309 Guelph, O n t, Canada FIELD, Theodore E . (B ) Corbart Refractories Co. 1600 W . Lee S t , Louisville 10, Ky. FIELDS, Emest (S) 7136 Marwinette Ave. St. Louis 16, Mo. (Laclcdc-Christy Co.) FILIPPI, Hugo (S F ) Illinois Brick Co. 228 N. La Salle S t . Room 1718 Chicago 28, 111. 955) R o s t e r 17 L lLMORE, Charles L. (W I) " Globe-ynion, lap. 900 E. Keefe Ave., Milwaukee 1, Wise. It,UDLAV CLAY PRODUCTS CO. ' (R. S. Craft) Washington, Pa. flflLAY, G. R. (R ) ' 2231 Waters Ave. Niagara Falls, Ont., Canada i (Norton Co.) .iL A Y S E N , John R. *' School of Ceramics Rutgers University New Brunswick, N. J. IjjNNEY, Edwin L. (S) Claycraft Co., Shawnee, Ohio riRESTINE, Arthur G. (G) * 34 Dewey Ave., Fairport, N. Y. (Bausch 8t Lomb Optical Co.) FLETCH ER ENAM EL CO. (J. Carroll Fletcher, Jr.) Dunbar, W. Va. FLETCH ER, J. Carroll, Jr. (E ) Fletcher Enamel Co., Dunbar, W. Va. FLEXO N, John D. (R) 3440 Gallatin Rd., Toledo, Ohio (Owens-Illinois) FLICK, Fulton B. (R) Brown, Critchlow, Flick & Peckham 1706 First National Bank Bldg. Pittsburgh 22, Pa. FLINT, E. P. (BI) Mallinckrodt Chemical Works Second & Mallinckrodt Sts. St. Louis 7, Mo. F L IN T , Francis C. (G FI) Hazel-Atlas Glass Co. 15th & Jacobs Sts., Wheeling, W . Va. FLO RENCE, Jack M. (G) FOSTER-FORBES GLASS CO. (F . R. Motsch) Marion, Ind. FOSTER, H. B. (S ) Brick & Tile Service, Inc. Box 2935, Greensboro, N . C. FOSTER, Luther M. (B ) Aluminum Research Labs. New Kensington, Pa. FOSTER, Wilder D. (B ) 5405 Bower Ave., Verona, Pa. (U . S. Bureau of Mines) FOSTER. Wilfrid R. (B F ) Department of Mineralogy Ohio State University Columbus 10, Ohio FOSTORIA GLASS CO. (Roy G. Yeater) Moundsville, W. Va. FOWLER, Eugene F. (E ) Battelle Memorial Institute SOS King Ave., Columbus 1, Ohio IflSCHER, Eugene A. (R ) 1 108 Newton Ave., N. Worcester 9, Mass. Kimble Glass Co. Box 1035-1036, Toledo 1, Ohio FLO R ID A TILE INDUSTRIES, INC. FOX, Charles S. (R ) Aluminum Co. of America 36IS Olive St., St Louis 8, Mo. (Norton Co.) ItlSCHER, Peter R. * Feldmhle AG Werk Koholyt-Wesseling (James W . Sikes) 608 Prospect St. Box 451, Lakeland, Fla. FLU, Eldon Bruce (W ) 1533 Crooks Rd., Royal Oak, Mich. FOX, Marilyn Box 161, Alfred, N . Y. FRAD, William A. (R ) 1800 Oak St., Rolla, Mo. W esseling Bez. Kln, Germany (Ceramic Div. (Missouri School of Mines) fjSCHER, Robert J. (W ) 86 Barker Ave., Eatontown, X . J. (Signal Corps Engineering Labs.) fjSH, E. Thomas (RJI) Great Lakes Carbon Corp. S8th St. & Pine Ave. Niagara Falls, N . Y. flSHEL, Waite P. (B) Box 127, Vanderbilt University Nashville 4, Tenn. flSHER, Eugene A. (W ) Electric Auto-Lite Co. Spark Plug Div., Fostoria, Ohio flSHER. Henry C. (R ) Norton Co., 1 New Bond St. Worcester 6, Mass. flSHER, Joseph R. (W ) Bell Telephone Labs., Rm. 1A-341 Murray Hill, N . J. ^H E R , William V . (G) ' Anchor Hocking Glass Corp. Lancaster, Ohio IflSHLEY. William S. (W ) Sparta Ceramic Co. East Sparta, Ohio |nSH-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 ) fm Tile Council of Am. Research Center School o f Ceramics, Rutgers University New Brunswick, N. J. FITZSIMMONS, Elmer S. (R I) Chem. & Abrasives Research Dept. Cincinnati Milling Machine Co. Cincinnati 9, Ohio . FITZSIMMONS, Robert F. (W ) 1 R. R. 1, Oakfield, N . Y. eelain'; (Lapp Insulator Co., Inc.) IHX, Frank A. (M ) pmentj Posey Hon Works, Inc. olvlnnl Lancaster, Pa. jB jF lE I S C H E R , Arthur (B ) your Nickel Cadmium Battery Corp. 1U c n -; Box 349, Easthampton, Mass. Champion Spark Plug Co). F L Y N N , Paul H . (B ) International Nickel Co., Inc. Bayonne Works, Bayonne, N . J. FOGELBERG, Sven Webb's Crystal Glass Co., Ltd. Dennis Glassworks Stourbridge, England FOLK ERS, Lt. JG Charles L. (RJ) U S N , U S S Iron County LST840 FPO , San Francisco, Calif. FONTANA, Eugene H. (G) Box 259, Coming, N. Y. (Corning Glass Works) FO N V IEL LE , Frank P., Jr. (W I) Dentist Supplv Co. of New York 500 W. College Ave., York, Pa. FO O TE M INERAL CO. (L . G. Bliss) 18 W. Chelten Ave. Philadelphia 44, Pa. FOR AKER, Robert W. (E l) Titanium Pigment Corp. 99 Hudson S t, New York 13, N. Y. FO R BES, Charles C. (G) Allen B. Du Mont Labs. 750 Bloomfield Ave., Clifton, N. J. FORBES, Lewis J-B. (G) Pilkington Bros. (Canada) Ltd. 165 Bloor St., E. Toronto 5, Ont., Canada FORD, Fred J. (S ) B ox 395, San Francisco, C alif. (Consultant) FOR D, George D. (W I) 2136 Wilmer St., Zanesville, Ohio (Mosaic Tile Co.) FORD, Walter D. (GI) Pittsburgh Corning Corp. Research & Development Div. Port Allegany, Pa. FORDS PORCELAIN WORKS (I. A. Hansen) Perth Amboy, N. J. FO RESM AN, Grover C. (G) 212 Cedar St., Corning, N. Y. (Coming Glass Works) FORKNER, Henry R. (X I) 201 Fairview Ave., Blacksburg, Va. (Virginia Polytechnic Institute) FRAHME, Herman H . (W I) 2358 Banning Rd., Akron 13, Ohio (U . S. Stoneware Co.) FRAME, Dudley P., Jr. (M I) 2366 Club Rd,, Columbus 21, Ohio (Harrop Ceramic Service Co.) FRANCE, J. H., REFRACTORIES CO. (W illiam A. France) Snow Shoe, Pa. FRANCE. William A. (R) J. H. France Refractories Co. Snow Shoe, Pa. FRANCESCHINI, Felippe Ceramica Sao Caetanp Caixa Postal 278, Sao Paulo, Brazil FRANCIS, Ronald K. (I) Box 847, Alfred, N. Y. FRANCISCO, Allen C. (R I) Brook Lane, R.R. 1 Chesterland, Ohio (Kolcast Industries, Inc.) FRANCK, Leon Franck & Steeman, S. A. 20 Ave. Emmanuel Haren-Nord, Belgium FRANCL, Josef (B ) 2549 Orkney St., Toledo 6, Ohio (Owens-Illinois) FRANK, Arthur W . (R ) 2284 Auer Park Pewaukee Lake, Pewaukee, Wise. (H evi Duty Electric Co.) FRANK, Henry A. (W ) Kokomo Sanitary Pottery Corp. Kokomo, Ind. FRANK , John (D ) Frankoma Pottery, Box 789 Sapulpa, Okla. FRANKLIN, Earl W . (S I) R. R. 1, Box 212B Alfred University Research Lab. Kingston, N. Y. FRANKLIN, William S. (GI) 918 Grassmere Ave., Wanamassa, N . J. (Bendix Aviation Corp. Red Bank D iv.) FRANKOMA POTTERY (John Frank) Box 789 IhsjUEMING, A. P. M. ' Metropolitan Vickers Electrical Co., Ltd. Trafford Park, Manchester 17, England iHEMING, Charles A. (E l) 508 Los Lomas Dr. FORNIA, Robert F. 2326 N. 60th St., Seattle 3, Wash. FORRY, W. J. (I) 21 N . Shippen St., Lancaster, Pa. FO R SE, Edwin B. (R ) JChattanooga 11, Tenn. Carborundum Co.. Niagara Falls, N. Y. (Pemco Corp.) FORTH , Robert D. (E ) 1369 N. W. Circle Dr. -flEMING, David M. (BJ) Kankakee, 111. 322 E. Irvin Ave.f State College, Pa. (Florence Stove Co.) _ (Simonds Abrasive Co.) FOSDICK, Marion L. (D F ) H-EMING, Thomas T. (R ) 100 N. Main St., Alfred, N. Y. Frank Samuel & Co., Inc. Sapulpa, Okla. FRANTZ, Samuel G. (M ) S. G. Frantz Co., Inc. Box 1138, Trenton 6, N . J. FRANTZ. S. G.. CO., IN C. (Samuel G. Frantz) Box 1138 Trenton 6, N . J. FRANZ, Leo J. (R ) Acme Brick Co., Malvern, Ark. FRASER, Lewis H. D. (B I) Dan-Mar Apt. 106, Marion, Ind. (RCA Tube Division) ! V0L2.23004,LNinoco.ln1-0Lib(1er9t5y 5B) ldg. Philadelphia 7, Pa. R oster i . <RA -R. Orr.Iy T. (G l) 1 1 S . A.v lurton Rd., Apt. A ( lurabus 3, Ohio ( F. D: '.enfcld & Co.) cRA K R /W * or A. (G ) 20 E. Sil St.. Chicago 37, III. Mncago 'idway Laboratories) , e r , w . il (S ) oser Bri h Co.. Box 144 ! 'las 1, Texas f 8 A l'R , C. E. (GF) ty.cr-i i plcx, Inc. E. r i Si., Washington, Pa. fRA l-R, r . '. (G) 7 E. V i St., Washington, Pa. -URICI iplcx, Inc.) FRA -R. J- u! (G FI) /ier-S >kf, Inc. E. 5 Su, Washington, Pa. JTRA PI.KX, INC. E. I 1er) 436 E . Beau St. Mm Pa. fR i ?:t t 1 wells (Life, S F ) 1 n k c., Ottawa, O n t, Canada f t ' : "i i / - Derek (B F I) ft r i y of New York mies r* j FRI K ics rii: !.. (R I) .ne, R.R. 4 ho F? TC i ort M. (R ) OX Co. Ig., Philadelphia 2, P F -' n W. (G) o>d Glass Co. r D. (S) ducts linai Annex Calif. F' dm I. (R ) rtou < 87 agara . O nt, Canada rr- A N\ 1 r. A. (R FI) ecnir.i Fi rick Co. X 61 Can City, Colo. r *A V t II. (W ) 'u or Corp. i 1 , Walnut, Caiif. n M. (D F ) v Ave. L. ; i r. \ ' TC ! s 7 U itt.V of Chicago) i W. (GI) o., Brackenridge, Pa. tr. Glass Co.) Toledo 1, Ohio ir L. (E ) hlg. linois, Urbana, 111. K. (W ) ;.n China Co. .. New York, N . Y . esto ve., Pomona, Calif. 1') Olean, N . Y . ` t rovox Corp.) " 0 , I.atrobe, Pa. . Carborundum Co.) (R) Eiberglas Corp. Ohio (G) Co., Box 1273 W. Va. . (S) Irick Co., Box 328 1 m i, N. Y. ffg. Div. ) Ltd., 53 Norman Rd. ni, S. E. 10, England FRYE, John. C. (B ) State Geological Survey 121 Natural Resources Bldg. Urbana, 111. FRYSINGER, James B. (M ) Pennsylvania Glass Sand Corp. Two Gateway Center, Pittsburgh, Pa. FUENZALIDA, Javier H . (W ) Foreign Div., American Radiator & Standard Sanitary Corp. 40 W . 40th St.. New York 18, N . FUJII, Takashi Institute of Silicate Research University of Toledo, Toledo 6, Ohio FULK ER, Richard H. ( E l) 1408 Nicklin Ave., Piqua, Ohio (Pemco Corp.) FULLER. A. A. (X) 322 S. Twyckenham Dr. South Bend, Ind. (Sollit Construction Co., Inc.) FULLER, Donald H. (E l) 335 S . Cook Avc., Trenton, N . J. (Trenton Fabricated Metal Co.) FULLER, L. R. (E l) 1129 E . Walnut St., Kokomo, Ind. (Globe American Corp.) FULLER, Richard B. (W I) Universal Clay Products Co. 1528 First St., Sandusky, Ohio FULLER, Richard G. (W ) D . E. McNicol Pottery Clarksburg, W . Va. FULLER, Wilfred (E ) General Steel Wares Ltd. Adelaide & Nelson Sts. London, Ont., Canada FULMER, Raymond C. (W I) Stackpole Carbon Co., St. Marvs, Pa. FULRATH , Richard M. (R ) University of California 164 Hearst Mining Bldg. Berkeley 4. Calif. F U N K , Harry C. (G ) Eagle-Picher Co., Insulation Div. Box 290, Joplin, Mo. FU N K , James E. (W ) 122 Glenrac Dr., Baltimore 28, Md. (Locke Dept., General Electric Co.) FUNKE, W . (G) Owens-Illinois Box 1019, Oakland 4, Calif. FU N K H O U SE R CO. (J. B. Sauls) 138 W . Washington St. Hagerstown, Md. F U N N E L L , John E. (M I) Southwest Research Institute Box 2296, San Antonio 6, Texas FUSSELL, Lynn E. (E ) 3501 Tyrone Dr., Louisville 18, Ky. (General Electric Co.) FUSZARA, Lester T. (I) 5 Stanton Ave., Perry, N . Y. G GAGIN, L. V . (G) 2616 Latonia Blvd., Toledo 6, Ohio (L-O -F Glass Fibers Co.) GAILEY, Michael D. 2601 W . Montlake PI. Seattle 2, Wash. GAINER, Taylor M. (W ) 215 Steedley Dr., Louisville 14, Ky. (American Radiator & Standard Sanitary Corp.) GAINES; Robert F. (S ) 48 S. White St., Brookville, Pa. (Washington Brick & Lime Co.) GAISER, R. Arthur (G) Ball Brothers Co., Muncie, Ind. GALBREATH, William W ., Jr. (R I) Vitro Corp. of America Vitro Engineering Div., 120 Wall St. New York 5, N. Y. GALLISON, Herbert E. (M ) Worthington Corp. Industrial Mixer Div. Plainfield, N. J, GALLUP, John (GI) RCA Victor Div. Radio Corp. o f America > 415 S. Fifth St., Harrison, N . J. GALUSHA, Richard L. (W ) Box 12, Bendersville, Fa. GALVIN, G. H ., Jr. (S ) Rockford Brick & T ile Co. Rockford, la. GALVIN, Richard J. (S ) Y. Sheffield Brick & Tile Co. Sheffield 1, la. GAMBLE, David L. (E ) New Jersey Zinc Co. of Pa. Research Dept., Palmerton, Pa. * GAMBLE, John D . ( W ) . Bell & Gossett Co., 8200 Austin Ave. Morton Grove, III. GANGLER, James J. (R ) 20538 Stanford Ave. . Fairview Park 26, Ohio (National Advisory Committee for Aeronautics) GANGULI, Umapati Bengal Enamel Works Ltd. F. O. Bengal Enamel, Dist. 24 Parganas West Bengal, India GANPULE, Anant K. Parshuram Pottery Works Co., Ltd. Morvi, Saurashtra, India GANTS, Sheldon B. (D ) Ceramic Associates, Inc. 3650 Dyre Ave., New York 66, N . Y . GARBISCH, Norbert S . (W ) Garco Products, Inc. Box 351, Butler, Pa. GARCIA-LEAL, Ramon (W I) Apartado Postal 1115 Monterrey N. L., Mexico (Instituto Tecnologico de Monterrey) GARCO PRODUCTS, INC. (Norbert S . Garbisch) Box 351 Butler, Pa. GARDEN, Henry R,, Jr. (S) Box 508, Salem, Va. (Salem Brick Co., Inc.) GARDON, Robert (GF) Melton Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. GAREIS, Friedrich "Tassino" Montagnola Lugano, Switzerland (Porzellanfabrik Langetbal A. G.) GARFIELD REFRACTORIES CO. (Kenneth A. Rugh) Bolivar, Pa. GARLAND, C. F. (S ) Mason City Brick & Tile Co. Mason City, la. GARLICK. Oakley H. (M ) Paul 0 . Abbe, Inc. Little Falls, N . J. GARLICK, Philip L. (JI) 1 Gladys St., Cyrildene Johannesburg, South Africa GARONZIK, S. H . (S ) 4211 Brookview D r., Dallas, Texas (Crown Brick M fg. Co.) GARSTANG, Alec King, Taudevin & Gregson Ltd. Grindlegate Works, Scotland St. Sheffield 3, York, England GARVE, T. Walter (S F I) 69 W . Weisheimer Rd. Columbus 14, Ohio (Consulting Engineer) GARVEY, Lawrence P. (R I) RCA Victor, 415 S. Fifth St. Harrison, N . J. GASKINS, W. W. (W I) Sierra Talc & Clay C.O. Box 390, South Pasadena, Calif. GATES. Daniel W . (X I) R. R. 3, Thomas St., Athens, Ala. . (Redstone Arsenal) GATES, Louis E., Jr. Box 933, Canton, N . C. GATES, Major E. (R) 2630 Fordham St., Palo Alto, Calif. H955) Roster 21 'goitarios 1 A gu la S . A. Apartado Postal 26808, Zona 14 Mexico,. D . F . . UNDER, Wilbur F. (G ) Pittsburgh Plate G lu s Co. Works No. I l , Mt. Vernon, Ohio UTSCH, Murray C. (M I) {jetai & Thermit Corp., E. Grand c San Francisco, Calif. Ave. V G. P. (W ) Nouicr Co., Kohler, W ise. VYTHROP, Alfred (S ) $85 Maplewood Rd., Lake Forest, 111. (Chicago Brick Co.) , Hayward A. (R ) Cincinnati Milling Products Div. Cincinnati Milling Machine Co. 4701 Marburg Ave., Cincinnati 9, Ohio , Kenneth H . (B ) 033 Westfield Terrace, Bethlehem, Pa. (Bethlehem Steel Co.) (GER> Charles F . (R F I) Carborundum Co., Box 268 Perth Amboy, N . J. 1GER, Joseph S . (M ) 4$ E. W elling Ave. Pennington, N . J. (Titanium Alloy Mfg. Div., National Lead Co.) (SINGER, E. E . (E F ) Pfaudler Co., 1000 W est Ave. Rochester 3, N . Y . 1ST, William J. (X ) Young Machining Co., Muncy, Pa. LIER, R. F. (W F I) 5427 York Lane, Bethesda 14, Md. (National Bureau of Standards) LSTHARP, Frederick (G F) 1134 Park St., Tarentum 1, Pa. (Pittsburgh Plate Glass Co.) LTMAN, Gerald Box 1009, Alfred, N. Y. HMELL, J. G. (M ) Golding-Keene Co., Box 456 Keene, N . H . HP, Robert W . (R ) 50' 'jchell St., Ridley Park, Pa. (i (d Refractories Co.) iNERAL CERAM ICS CO RP. ^(Salvatore Ortepio) Crows Mill Rd., Keasbey, N. J. MERAL CO LO R & CHEMICAL CO.. INC. (Harry J. Keener) Box 7 Minerva, Ohio MERAL EL E C T R IC CO. (W. S. Kahlson) 'Lamp Dept., Pitney Glass Works Nela Park 12, Qeveland, Ohio aiERAL ELECTRIC CO. (L. E. Thiess) Locke Dept., B ox 57 Baltimore 3, Md. NERAL G LASS E Q U IP M E N T CO. (Victor A. Plumbo) 5 S . Virginia Ave. Atlantic City, N . J. OiRRAL R E F R A C T O R IE S CO. (Russell P. H euer) 1520 Locust St. Philadelphia 2, Pa. fKTRY, Raymond (G ) ^Alexander H . Kerr & Co., Inc. Box 2008, Santa Ana, Calif. t'TSCH, A. Page (M) Clay M ines Corp. glOl Oakland St., Trenton, N . J. ft CH Bernhard F. (M ) | 'HPlted Clay Mines Corp. ? 1 Oakland S t , Trenton, N. J. W. C. (W ) j; b Ceorge Pottery Co. ^*RGE^Ve ' ^ ast Pa*cst'nc- Ohio . W. R. (W ) B c v ' 1""8 P T Co. Pa- S., POTTERY CO. ii wu t PpaPles*ti1ne,) OPhaiork A ve- && No. 10 (1955) BRICK & T IL E CO. (J. C. Hagler, Jr.) 10 Campbell Bldg., Augusta, Ga. G EORGIA K AO LIN CO. (Robert H. Bollinger) 433 N. Broad St., Elizabeth 3, N . J. GERAGHTY, John J. (E ) Chicago Hardware Foundry Co. North Chicago, 111. GERBER, Oscar L. (W ) Gerber Plumbing Fixture Corp. 232 N . Clark St., Chicago 1, 111. GERCAR, Francisco J. S. A. Cristaleras Del Uruguay Comercio 1491, Montevideo, Uruguay GERSCH, Herbert (S ) 3557 Ontario St., Columbus 11, Ohio (Claycraft Co.) GERSTENSCHLAGER, V., Jr. (R ) Babcock & Wilcox Co., Box 923 Augusta, Ga. GERSTER, C. W . (W I) Louthan Manufacturing Co. 2000 Harvey Ave., East Liverpool, Ohio GETTO, Allan Box 246, Alfred, N. Y. GHERING, Leonard G. (G F) Preston Laboratories, Box 149 Butler, Pa. GIACOMELLI, Domenico Soc. It. Refrattari Marghera Azionaria Via Industrie 52 Cas. Post. 308. Marghera, Venice, Italy GIANG, Yu Kim Choan Huat Co. Inc. Ill Jose Rizal St., Mandaluyong Rizal Province, Philippines GIBB, Mary J. American Ceramic Society 4055 N. High St., Columbus 14, Ohio GIBBS, Melvin B. (E ) Inland Steel Co., East Chicago, Ind. GIBSON, Frank B. (E) . Seaporcel Metals, Inc. 28-20 Borden Ave. Long Island City 1, N . Y. GIBSON, R. L. (W I) 1314 Wilmington Ave., New Castle, Pa. (Shenango China, Inc.) GIESEKE. Frans Kockums Eroaljerverk Ronneby, Sweden G IESS, Edward A. (BJI) Box 903, Alfred, N. Y. (State University of New York, College of Ceramics) G IFFIN, Robert H. 4211 Allendorf Dr., Apt. 20 Cincinnati 9, Ohio GILBERT, George W. (G) 497 S. Second St., Newark, Ohio (Owens-Corning Fiberglas Co.) GILES, James H., Jr., (M I) 3621 39th St., N. W., Apt. F-324 Washington 16, D. C. (Porcelain Enamel Institute) GILES, Raymond (W ) 142 McKeever St., Crooksville, Ohio (Crooksville China Co.) GILES, Thomas M. 1970 Suffolk Rd., Columbus, Ohio G1LFILLAN, B. T. (R) Climax Fire Brick Co., Climax, Pa. GILF1LLAN, J. M. (W ) New Jersey Porcelain Co. Box 908, Trenton 5, N. J. GILL, James A . (W I) Baroid Div., National Lead Co. Box 1675, Houston 1, Texas GILL, John H. (R) Gill Q ay Pot Co., Muncie, Ind. GILL, Joseph W. (BI) 685 Van Buren St., Des Plaines, III. (U . S. Gypsum Co.) GILL, LaVeme N. (W I) American Radiator & Standard Sanitary Corp.. Box 268 Torrance, Calif. Texas Brick Co., Box 510 Brownwood, Texas , GILLESPIE, H. M. (M ) 225 Broadway, New York 7, N . Y. GILL1ARD, Joseph W . (D ) 108 W. County St., Phoebus, Va. (Hampton Institute) GILLINDER BROTHERS, INC. (J. Fletcher Gillinder) Port Jervis, N. Y. GILLINDER, J. Fletcher (G) Gillinder Brothers, Inc. Port Jervis, N . Y. , GILLULY, William F. (G) 1611 W. 13th St., Sedalia, Mo. (Pittsburgh Corning Corp.) GILTNER, Benedict C. (W ) Illinois Electrical Porcelain Co. Pierce & Pearl St., Macomb, 111. GIMSON, Joseph F. Worcester Royal Porcelain Co., Ltd. Royal Porcelain Works Worcester, England GINGOLD, Jacob 6 rue de Fontenay, Plessis-Robinson Paris, Seine, France GIRARD, R. T. (E ) General Electric Co. General Engr. Lab., Bldg. 37, Rm. 299-38 One River Rd., Schenectady 5, N. Y. GITTER, Alice Josephine (MF1) 39 W. 70th, New York 23, N. Y. (Whittaker, Clark it Daniels, Inc.) GITZEN, Walter H . (R ) 1 Wesley Dr., Belleville, 111. (Aluminum Co. o f America) G IVEN, Conrad W . (E ) Great Lakes Steel Corp. Ecorse, Detroit 29, Mich. GLABAU, Ernest R. (G) 140 Woerd Ave., Waltham 54, Mass. (Raytheon Mfg. Co.) GLADDING, Albert C. (S) Gladding Bros. M fg. Co. Third & Keyes St., San Jose, Calif. GLADDING, M cBEAN & CO. (William O. Brandt) 2901 Los Felix Blvd. Los Angeles 39, Calif. GLADNEY, Kurt (G) Fiberglas Canada Ltd., Box H Sarnia, Ont., Canada GLASER, John H . (G) Uniscience Inc. 112 Crooked Billet Rd., Hatboro, Pa. GLASFORD, James W . 1350 Boilvin Ave., Rockford, 111. GLAZE, Francis W . (GFI) 4100 Gallatin St., H yattsville, Md. (National Bureau of Standards) GLEN-GERY SH A LE BRICK CORP. (Gordon E . Lew is) Box 182 Wyomissing, Pa. G LENSH AW GLASS CO., INC. (George W . Meyer) Glenshaw, Pa. GLOBE-UNION INC. (J. Fletcher Harper) 900 E. Keefe Ave., Milwaukee l. Wise. GLOSS, Gunter H . (R ) International Minerals & Chemical Corp. 5401 Harrison St., Skokie, 111. GLOSSBRENNER, D. I. (M) R.R. 12, Box 261, Indianapolis, Ind. (Kaolin, Inc.) GLOSTEX CHEMICALS, INC. (C. G. Wurtsbaugh) 3056 Bandini Blvd. Los Angeles 23, Calif. GLYNN, T. W. (G) Blue Ridge Glass Corp. Kingsport, Tenn. GODDARD, W. T. (W ) Box 428, Hamilton, Ont., Canada (Canadian Porcelain Co., Ltd.) GODEJAHN, Gordon C., Jr. (G ) 2847 Alisdale Dr., Apt. 102 Toledo 6, Ohio (Owens-Illinois) R oster 23 iD O Y , e .'a ., &co,, IN C. (Emilio A . Godoy) 25 Broadway New York 4, N. Y. iDOY, Emilio A. (R ) E. A. Godoy & Co., Inc., 25 Broadway New York 4, N. Y. JTCHIUS, Don R. (E ) v 'Ferro Corp. 4150 E. 56th St., Cleveland, Ohio UN, Fred L. (S) Gladding, McBcan & Co., 1 inr.o! . Calif. JI.D1NG, Ivor I-. S. Metal : rcriains Ltd., Cornwall Bd. Srnethv k 40, England 11.DINC. K E E N E CO. '.i (J- G. Gemmcll) Box 456 Keene, N . i l . '.DMA.", Hastt B. (S ) 1 hoile: Chemical Co. '545 S. :;ta:* St., Chicago 5, 111. 'S M 'l II, Julian R. (B ) y f Chicago C ogy, Chicago 37, 111. r> , S a r Odriozola (R ) " : adrillos Industriales tv -ai os. S. A., Apartado 390 loni 1. L., Mexico hi , TM:on (W ) mic-Arts, Inc. ; . lu sville, Ohio . l ed M. (W ) . , 9450 S. W . Barnes Rd. 1' r > " JRDON, FCA 1'rircei GORDON, Jo f in in iI T GOP ,1 . 1 (M) ..-Jl Co. t., Akron 8, Ohio n (B) ic Research Lab. rnectady, N. Y. s S. (E) iator & Standard , 834 E. Broadway y . *rt R. (W I) 1 trliara Ave. ' !i. dean & Co.) to Jarrard (B ) ich Labs. trgical Co., Box 580 . N. Y. . (W ) Tories Div. N. J. - U. (R ) Corp. o f America T.. (R ) ">ry St., Holden, Mass. \ c W . (R) i7 ills Dr., iCrici Milling Products Div., Cincir CORN/ T lilling Machine Co.) nry A. (M I) %. , 4.S7 r- >ic Rd., S. Euclid C!r f; 1, Ohio p ! f \ ic p. "or CU, vt. Div., Ferro Corp.) irks A. (M) rs } al Co., 806 Market St. y *c.v ! 'bin i n | i ' , : i' fl' SOS . fW ) r Bolson Landing, N . ics Corp.) (COT l St., Weedsport, N . Y . . D. ' Headley j v, Berks, England is Co.) sto F. (M ) h, 40 Lydia St. C(V i I .. Canada r * Technical Surveys) . (W FI) y, Inc. : i., Buffalo 10, N . Y . GOWER, Irving W . (R ) ; 1023-A S. Clark, Mexico, Mo.' (Mexico Refractories Co.) G RAFF, James B. (S ) Graff-Kittanning Clay Prods. Co. Worthington, Pa. GRAFF-KITTANNING CLAY PRO DUCTS CO. (James B. Graff) Worthington, Pa. GRAFF, William A. (G) Glass Technology Lab. General Electric Co. 1133 E. 152nd St., Cleveland 10, Ohio GRAHAM, John Warren (R ) 5609 Milan Ave., Cincinnati 13, Ohio (General Electric Co.) G R A N N E N , Edward A. (W ) 77 Sheehan Ave., Cincinnati 15, Ohio (Cambridge Tile M fg. Co.) G RANT. Frederic J. (W ) 527 W. Seventh St., Rm. 303 Los Angeles 14, Calif. (Grant Ceramic Co.) GRANT. John F. (I) Piffard, N. Y. GRAUER, Oscar H. (G) Fischer & Porter Co., Hatboro, Pa. GRAY, Thomas J. (B ) Box 814, 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 8, Mo. GRAY, William T. (G) Leeds & Northrop Co. 4901 Stcnton Ave., Philadelphia 44, Pa. GRAYBEAL, Byron F. (M ) American Vermiculite Co.. Inc. Roan Mountain, Tenn. GREAT LAKES FO U N D R Y SAND CO. (C. L. Cruikshank) 720 United Artists Bldg. Detroit 26, Mich. G REEN, A. P., F IR E BRICK CO. (R . S. Bradley) Research Dept., Mexico, Mo. G REEN, Allen P. (R ) A. P. Green Fire Brick Co. Mexico. Mo. GREEN, A. T. (F) British Ceramic Research Assn. Queen's Rd., Penkhull Stoke-on-Trent, England GREEN, D. T. (S) Milton Brick Co., Ltd., Box 554 Milton, Ont., Canada GREEN, John R. (M I) Minneapolis-Honeywell Reg. Co. Wayne & Windrim Aves. Philadelphia 44, Pa. GREEN, Robert L. (W ) Madeira, LOenhoiox, Inc., Meade St. Trenton, N . J. GREEN. R. S. (B I) 18 S. Jefferson Rd., Mexico, Mo. (A . P . Green Fire Brick Co.) GREENBERG, Sidney A. (B) Johns-Manville Research Center Manville, N . J. G REENE, Charles F. (S ) 1327 Woodrow St., Columbia, S. C. (Richland Shale Products Co.) G REENE, Charles H . (G ) Box 804, Alfred, N . Y. (State University of New York, College of Ceramics) G REENE, J. F. (G F) 1043 New Pear, Vineland, N. J. (Kimble Glass Co.) GREENFIELD. Jerome (M ) Seaboard Chemical Corp. 198 Broadway, New York 38, N. Y. GREENHOUSE, Harold M. (B) Aladdin Radio Industries Nashville 2, Tenn. GREENLEE. Charles A. (R) Basic Refractories, Inc. 845 Hanna Bldg., Cleveland 15, Ohio JO 1 ! (1955) i GREGER, Herbert H . (R ) R.R. 1, Rockville, Md. (U . S. Bureau of Mines) GREGORIUS, J. S. (GFI) Pittsburgh Plate Glass Co. One Gateway Center, Pittsburgh 22, Pa. GRENIER, Lee (S ) Magnet Cove Barium Corp., Box 832 GrcybuU, Wyo. GRESHAM, Lucius C., Jr. (S ) Acme Brick Co., Box 308, Waskom, Texas GREWER, P . Douglas 1318 Whenona Dr., Madison, Wise. GRIFFIN, Thomas W . (G) 213 Bushy H ill Rd., Weatogue, Conn. (Hartford-Empire Co. Div. o f Emhart Mfg. Co.) GRIFFITH, J. Scott (R ) 5524 W . Adams St., Chicago 44, III. (Armour Research Foundation) GRIFFITH, R. E. (R) R.R. 1, Malvern, Pa. (E . J. Lavino & Co.) GRIFFITH, William A. (RJI) Great Lakes Carbon Corp. Box 637, Niagara Falls, N. Y. GRIFFITHS, Norman Nonporite Pty. Ltd. 292-296 Burwood Rd. Hawthorn E 2, Victoria, Australia GRIGG, Arthur (R ) Denver. Sewer Pipe & Clay Co. Box 2329, Denver .1, Colo. GRIGG, Paul E . ( E l) 338 N . Dover Ave., La Grange Park, III. (Association of American Railroads) GRIM, Ralph E . (X ) Dept, of Geology, Univ. of Illinois Urbana, 111. GRIMM, Clayford T . (S ) Clay Products Assoc, o f the Southwest 109 Perry-Brooks Bldg., Austin 1, Texas GROBB, F. S. (R) G. F . Sterne & Sons, Ltd., 126 Bruce St. Brantford, Ont., Canada GROOME, Garland L. (R ) 1347 Cambria St., Baltimore 25, Md. (Harbison-Walker Refractories Co.) GROSS, Harold I. (W ) Santa Anita Potteries 3117 San Fernando Rd. Los Angeles 65, Calif. GROTHAUS, Joseph V . (R ) 6806 S. Dante, Chicago 37, 111. (United States Seel Corp.) GROVE, Robert L. (W I) 26 Rockland St. South Dartmouth, Mass. (Cornell-Dubilier Elec. Corp.) GRNER, Max N. (R) Harbison-Walker Refractories Co. 1325 Ambassador Bldg., St. Louis 1, Mo. GRUVER, Robert M. (X ) 1160 Oneida St., State College, Pa. (Linden Labs., Inc.) GSCHW IND, Jean F. (M ) Ross Midwest Fulton Corp. 918 Woodley Rd., Dayton 1, Ohio GUERCI, Carl F . (W ) 1444 Westgate Dr., Bethlehem, Pa. (Western Electric Co.) GUGELER, Albert L. 3897 W . 33rd St., Cleveland 9, Ohio GUIMARAES, Helio Pentagna Caixa Postal 1355 Belo Horizonte, Brazil GULICK, Chester (M ) Kentucky-Tennessee Clay Co., Inc. 807 City Savings Bldg., Alliance, GULLINGS, LeRoy V. (G) 126 Parkway Dr., Wabash, Ind. (American Rock Wool Corp.) GUMMESON, P. Eg. Hoganas-Billesholms Aktiebolag Hoganas, Sweden Ohio R oster 25 JJNTHER, F . W . (S.) 849 Baker `Ave., N .'W . New Philadelphia, Ohio (Universal Sewer Pipe Corp.) IJNZENHAUSER, Adolph (M) Industrial Consultant, 69-70 113th St. p -rest H ills 7S, L. I., N. Y. a I Subodh C. (GJ) 101, Port Jervis, N. Y. (Gillinder Bros., Inc.) ;URR, Wilhelm Porzellan-Manufaktur W . Haldenwanger Berlin-Spandau Heerstr. 221, Westsektor, Germany jUSTAFSON, Carl H,, Jr. (R) Montana Dr., Holden, Mass. (Norton Co.) jUTHRIE, George B. (W ) 642 Louisiana Ave., Chester, W. Va. (H all China Co.) (JZMAN, Hector (G) 2944 Rendale Ave., Apt. 103 Toledo, Ohio (Owens-Illinois) (SW E, Mg Lu Box 216, Alfred, N . Y. H JACKETT, James W . (G ) 3614 Kenwood Blvd., Toledo 6, Ohio j (Owens-Illinois) igACKLER, W . C. (W I) Ceramic Section , Engineering & Industrial Exp. Station University o f Florida, Gainesville, Fla. HADLEY, Robert L. (E ) General Electric Co. Major Appliance D iv., A P 5, Rm. 249 i Appliance Pk., Louisville 1, Ky. HAECKER, Arthur J., Jr. (R ) 3325 Bennett W ay, Concord, Calif, "'adding, McBean & Co.) HA )R P O T T E R IE S, IN C. ,, -eph F . Estes) 7 Maiden Lane Dundee, 111. HAERTLING, Pvt. Gene H . (W JI) . U S 55535160, Co. I, 9405 TU . Fort Monmouth, N. J. BAFNER, Harold C. (G) Bausch & Lomb Optical Co. Chemical Research Lab. Rochester 2, N . Y. 1HAFNER, Robert H., Jr. (X ) ! 175 N . Linden Rd., Mansfield, Ohio 1 (Humphryes Mfg. Co.) HAGAN, M. A . (R I) ; Midwest Research Inst. 42S Volker Blvd., Kansas City 10, Mo. HAGAR, Donald (M FI) Box 328, Zanesville, Ohio (Donald H agar Ceramic Materials) HAGEDORN. E . C. (G) j Owens-Illinois, Technical Center i 1700 N . Westwood, Toledo 1, Ohio ^GENAUER, Carl J. (G) 5 R.R. 1, Sarver, Pa. (Pittsburgh Plate Glass Co.) jAGGLUND. Erik (M ) Kanthal Corp., Amelia PI. Stamford, Conn, j .AGLER, J. C , Jr. (S ) Georgia-Carolina Brick & Tile Co. 10 Campbell Bldg., Augusta, Ga. ^GNER, Fred F. (G) Phoenix Glass Co., Monaca, Pa. ^GY, Henry E. (G) Corning Glass Works Laboratory Coming, N . Y . P William P. (G) .orwood Ave. Softh Plainfield, N . J. , (Johns--Manville Corp.) ^IN E R , Clarence H . (GF) Rational Bureau of Standards Washington | r 34, N o. 25, 10 D . C. (1955) H A L D E N , Frank A . (B J) 65S Westwood Ave., Long Branch, N . J. (Signal Corp Engineering Labs.) H ALDY , Norman L. (W ) American Encaustic Tiling Co. 1000 Cannon Ave., Lansdale, Pa. HALE, Arthur R. (M ) Aluminum Co. of America 1880 Elmwood Ave., Buffalo 7, N. Y. HALEM , Robert G. (W J) 1571 Undercliff Ave., Bronx 53, N. Y. (Babcock & W ilcox Co.) HALL CHINA CO. (M. W . Thompson) East Liverpool, Ohio HALL, Donald H. c /o Mrs. Lusk, R.R. 1 Alfred Station, N. Y. HALL, Douglas E. 112 Chemung St., W averly, N . Y. HALL, E. B. M /S Bird & Co. Ltd., Research Dept. Chartered Bank Bldgs. Calcutta, India HALL; Everson (W ) Park W ay Ext., East Liverpool, Ohio (H all China Co.) HALL, F. P. (W F) Onondaga Pottery Co., Electronic Div. Syracuse 1, N. Y. HALL, James L. (W ) 242 Oregon Ave., Palo Alto, Calif. (Eitel-McCullough, Inc.) HALL, John T. (W ) Elysian W ay, East Liverpool, Ohio (H all China Co.) HALL, Morris P. (S ) Alton Brick Co., Box 245 Maryland Heights, Mo. HALLBERG, Richard C. (W ) 236 Watson Ave., Fostoria, Ohio (Electric Auto-Lite Co., Spark Plug Div.) HALLER, Percy 319 Carterknowle Rd., Sheffield 11, England (John G. Stein & Co., Ltd.) HALLER, Wolfgang K. (B) Inst, of Silicate Research U niversity o f Toledo, Toledo 6, Ohio HALLETT, Crawford W . (R I) Ceramic Supply Co., Box 106 Crooksville, Ohio H ALLO IN, W illiam G. (G) 1218 Broadview Blvd. Brackenridge, Pa. (Pittsburgh Plate Glass Co.) HALLSE, Robert L. 514 S. Chase Ave., Lombard, 111. HALM, Louise Union Franaise des Produits Rfractaires, 15, Rue de Milan Paris 9e, France HAMAKER, M. L. (R) Columbia Fire Brick Co. 612 First National Bank Bldg. Canton 2, Ohio HAMER, Donald (R ) 426 Elmwood, Evanston, 111. (Lindberg Engineering Co.) HAMILTON, Edgar H . (GI) National Bureau o f Standards Washington 25, D. C. HAM ILTO N, J. C. (G ) 3422. Chestnut H ill Rd., Toledo 6, Ohio (Owens-Illinois) HAMILTON, Noble E. (R) Box 466, Providence, R. I. HAMILTON, W . M. (E) Crane Co., Chattanooga Div. 33rd and Alton Park Blvd. Chattanooga 1, Tenn. HAMME, Donald G. (G) National Gypsum Co., Research Center 1650 Military Rd., Buffalo 17, N . Y. HAMMER, Averill J. (S ) Dept, of Chemistry Bowling Green State University Bowling Green, Ohio HAMMER, Gunter 246, Connell's Pt. Rd. South HurstviUe, N . S. W., Australia (Messrs. R. Fowler Ltd.) HAMMER, R. (I) Box 5212 (N achla), H aifa, Israel (Palceramic, Ltd.) HAMMOND LEAD PRODUCTS, INC. (William P. Wilke, III) 5231 Hohman Ave., Box 912 Hammond, Ind. HAM PEL, Richard J. (W J) 3762 Osceola St., St. Louis, Mo. (Trenton Potteries Co.) HANCOCK BRICK 6 T IL E CO. (James. L. Child, Jr.) Box 450 Findlay, Ohio HAND, Thomas (R) Corhart Refractories Co. 1600 W . Lee St., Louisville 10, Ky. HNDEN, Jack (GJ) 20 Elmora Ave., Elizabeth, N . J. HANDW ERK, Joseph H. (B ) 915 N. Prairie Ave., Joliet, 111. (Argonne National Laboratory) , HANKS, Charles F., Jr. (M ) Kentucky-Tennessee Clay Co. 807 City Savings Bldg. Alliance, Ohio H A N LE Y CO. (Charles E. Bates) Summerville, Pa. HANLON, Charles W . (M) 66 Fairmount Blvd. Garden City, L. I., N . Y. (Farris Flexible Valve Corp.) H A N N , Douglas G. Caynton, Shifnal, Shropshire, England (British Heat Resisting Glass Co.) HANNA, H. H. (GI) Pittsburgh Plate Glass Co. 100 Mississippi Ave. Crystal City, Mo. H A N N A , Ralph E. (W I) Square D Co., Molded Insulation Div. Peru, Ind. H AN N A , Richard (W J) Hartford, N . Y . (General Electric Co.) HANNEKEN, Henry P. (G) Mississippi Glass Co., 88 Angelica St. St. Louis 7, Mo. H A N N O N , Richard C. (M I) 1208 Franklin Rd., Salem, Ohio (R. T. Vanderbilt Co., Inc.) H A N O V IA CHEM ICAL & MFG. CO. (R. T. Hopper) One W . Central Ave. East Newark, N . J. H A N SA R D , W . Carey (W I) 2345 Cheshire Bridge Rd., N. E. Atlanta, Ga. (Georgia Institute of Technology) H A N SEL L, U . G. (W ) Honeywell Research Center 500 Washington Ave., S. Hopkins, Minn. HANSEN, I. A. (W ) Fords Porcelain Works Perth Amboy, N . J. H A N SE N , J. E . (E F I) Ferro Corp., 5309 S. District Blvd. Los Angeles 22, Calif. H A N SE N , John H . (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo, Ohio H A N SEN , Kenneth H. (M) 507 Edgewood Ave.i Columbia, Mo. (Consolidated Feldspar Dept., International Minerals & Chemical Corp.) H A N SE N , Valdemar Kastrup Glasvaerk Ltd. Norrevoldg. 12, Copenhagen K, Denmark H A N SEN , Waldemar C. (R) Universal Atlas Cement Co. Gary (Buffington Station), Ind. HANSON, Hans R. (R) 30004 W. Ten Mile Rd. Farmington, R.R., Mich. (Hanson Co.) R oster 27 L ' M, James W . (S ) t -ral W ells Clay Products,lue. 92, Mineral W ells, Texas i* RT. Carl J. (W ) f shaw Chemical Co., 1945 E . 97th St. eland 6, Ohio j; 'ON-W ALKER v v. 'KACTORIES CO. A. Brashares) I Farmers Bank Bldg. 'mrgh 22, Pa. ft JKT. Edward L. (M ) . K Iic.iri Mfg. O). Vest St., Cincinnati 27, Ohio . Cha ir. M. (D F ) . Univers;1:*' of New York re of Cei 'ilea, Alfred, N . Y . y I , John y enway, 1! tsham, Sussex, England ' ' .ex & Do ing United Brick Co., [ 1A' -IK CO., ' NC. ve ! In * : fte) York, Pa. V ' i . f e (M ) c v e, York, Pa. (A (SI) if' -.tf. P>: Corp., W arners, N . Y . [. CO - c G) Corning, N . Y . ,!K Vorks) ia; A VES. j .ii f rx, r\ c ster, England Ltd.) u p ; - Y CO. ) East Liverpool, Ohio V ' F) 91 E. 79th St. A Jr. (W I) ctric Corp. IA' \r, r (W ) 900 E. Keefe Ave. ISC. 1- V (M ) urnacc Corp. Tate 2, N . Y . Is r. (BJ) . Los Alamos, N . M. ntific Laboratory) :J ile, Chicago 35, III. 4 a (D) ul. Canada I.* v iy W . (G) i:., Syracuse 6, N . Y . Div., Allied Chemical it e, Jr.) .e l C. Ia . (W) ango C a, Inc., New Castle, Pa. l.V GrOTf. f- (G) iclv a A , Tselin, N . J. ov; C Vii & Mfg. Co.) l.5 , Hrurv (R) Hi- -.attic 18, Wash, 111 of Mines) T (S) S. - t m. D enver, Colo. Anso x & T ile Co.) i, Jo*, i Florida e., S . E. ita 16, , ftrocles . llalcigh, N . C. W it; . (M) i-v s. ` Co., 301 Monmouth St. >'t;* stiff ^ 'r ! C. (W ) .ik, Columbus 14, Ohio Electric Corp.) ( ii, N ` (1955) HARRISON, William B. (B I) 5325 W . Hadley St. Milwaukee 10, Wise. (AUis-Chalmers Mfg. Co.) HARRISON, W. N. (E F) National Bureau of Standards Ind. Bldg., Enameled Metals Sect. Conn. A ve. & Van N ess St., N . W . Washington 25, D . C. H ASSH AW CHEMICAL CO. (Carl Harbert) 1945 E. 97th St., Cleveland 6, Ohio HART, John M. (W ) New Jersey Porcelain Co., Box 908 Trenton 5, N. J. HART, John R. (W ) 599 Lexington St., Waltham, Mass. (Raytheon Mfg. Co.) HART, Leroy D. (R) 707 Crompton Court Webster Groves 19, Mo. (Aluminum Co. of America) HART, Wade J. (GI) 908 Lafayette Court, Marion, Ind. (Radio Corp. o f America) HARTFORD, Thomas J. (W ) 2783 Doresta Rd., San Marino, Calif. (Gladding, McBean & Co.) HARTLEY. Alva G. H . Downing & Co. Ltd. New Castle, Staffs, England HARTMAN, F. Henry (G) Stouffville, Ont., Canada (Crystal Glass & Plastics Ltd.) HARTSHORN, T. D. <EI) A . J. Litidcmann & Hoverson Co. Milwaukee 15, W ise. HARTW IG, Frederick J., Jr. (R I) Babcock & W ilcox Co., Box 835 Alliance, Ohio H ARVEY. A. M., Jr. (S ) Roanoke-Webstcr Brick Co., Box 780 Roanoke 5, Va. H ARVEY, Edwin T. (R ) 314 W . McPike St., Vandalia, Mo. (Harbison-Walkcr Refractories Co.) HARVEY, E. M. (R) North State Pyrophyllite Co. Pomona, N . C. HARVEY, Joseph S., Jr. (G ) Raytheon M fg. Co., 465 Centre St. Quincy 69, Mass. H ASK O , Stephen (W I) 1510 Wheaton Lane, Silver Spring, Md. (National Bureau of Standards) HASSELBACH, William (G) Libbcy-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio H ASSETT, William A. (W ) 3344 Skyline Dr,, Knoxville 14, Teun. (Knox Porcelain Corp.) H ATCH , Robert A . (B ) 4135 N. Bellcview Ave. St. Paul 10, Minn. (Minnesota Mining & M fg. Co.) H ATHAW AY, A. J. (R ) 8721 Pershing Ave. Niagara Falls, N. Y . (Titanium Alloy M fg. Div., National Lead Co.) HATHAW AY, Isaac S. (W ) 1318 Tuttle Ave., Montgomery, Ala. (Alabama State College) H A U BE IN , Wendell L. 708 W . 12th St., Rolla, Mo. H AUCK , Charles A. (R I) 3234 Kenyon Rd., Columbus, Ohio (Ohio State University Research Foundation) H AUSER, Richard E. (I ) 351 Moselle S t , Buffalo 11, N . Y . H A U TH , Willard E., Jr. (B ) 409 Warminster, Hatboro, Pa. (International Resistance Co.) HAVEKOTTE, Walther L. (R ) Firth Sterling, Inc. 3113 Forbes St., Pittsburgh 30, Pa. HAVELL, Richard F . (W ) 846 N . Euclid A ve., Oak Park, 111. (Eagle Grinding Wheel Co.) H AVENS, Irvin F. 2340 Norton Dr., Augusta, Ga. H A V IL A N D & CO., INC. (Theodore Haviland II) 270 Park Ave. New York 17, N . Y. H AVILAND, Theodore II (W ) Haviland & Co., Inc., 270 Park Ave. New York 17, N . Y . HAW ES, Samuel A. (S) 301 N. E. Sixth Ave. Mineral W ells, Texas (Texeramics Co.) HAW K, Elwin A. (M ) Hawk Laboratories, Inc., R.R. 1 East Rochester, Ohio HAW KE, C. E. (R) Carborundum Co., Niagara Falls, N. Y. H AW K INS, Robert J. (S I) 20 Sunnyside Pi., Hamburg, N. Y. (Buffalo Brick Corp.) H AW K S, Ralph L. (W I) 11 Holt St., Hopkinton, Mass. (Stylon Corp.) HAW KS, William L. .(It) 48 Chester Circle, Apt. 2A New Brunswick, N . J. (Sayre & Fisher Brick Co.) HAW S REFRACTORIES CO. (E . E. Slick, Jr.) 407 Main St. Johnstown, Pa. H AY, John ; Box 204, Alfred, N. Y. H A Y , 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-ATLAS GLASS CO. , (Francis C. Flint) 15th & Jacobs Sts,,. Wheeling. W . Va. HAZEL, John J. <RF) Republic Bldg., Rm. 1526 RepubUc 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 16, Wise. (A . O. Smith Corp.) H EATH, Donald L. (B ) Ohio Brass Co., Park & Ninth Barberton, Ohio HEATLEY, Sidney M. (R ) Box 475, Moncks Corner, S. C. (Babcock & W ilcox Co.) HECK, Frank G. (R ) E. J. Lavino & Co., 3 -Penn Center Plaza Philadelphia 2, Pa. HEDDELL, James V. (M I) 228 Dorado St., Ridgecrest, Calif. (Gladding, McBean & Co.) H EDDEN, Walter A. (G) Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio HEDGES, Lee M. (R) R.R. 4, Cedar Grove Rd. Somerville, N. J. (Johns-Manville Products Corp.) H EDG PETH, James A. (S ) Borden Brick & T ile Co., Box 1771 Durham, N . C. H ED IN , Claes Olof c /o Malardalens Tcgelbruk Stockholm 3, Sweden H EDQ UIST, Alfred J. (W ) Apartado Postal 525 Guadalajara, Jalisco, Mexico (Loza Fina S. A.) H EE BN E R , John C. (R I) 88 Pierce Rd., Watertown 72, Mass. H EFTI, Franz Zrcher Ziegeleien, Postfach 357 Ziirich 1, Switzerland R oster 29 IDTM AN, Clarence E. (G) National Lime & Stone Co. First National Bank Bldg. Findlay, Ohio CILIGMAN, H. A. (R F I) E. J. Lavino & Co., Box 29 v istown, Pa. X JETH, Werner M. Faroenfabriken Bayer Aktiengesellschaft (22c) Leverkusen-Bayerwerk, Germany ;INDL, Raymond A . (R F) 4917 43rd St., N . W. Washington 16, D . C. (National Bureau of Standards) INE, H. W. (S) Hudson Supply & Equipment Co. 1727 Pennsylvania Ave., N . W. Washington 6, D . C. ISCHMAN, Fred E. (W ) 106 S. Adams St., Fostoria, Ohio (Electric Auto-Lite Co.) LLER, Enrique % Cerro de Pasco Corp. La Oroya, Peru LLIESEN, Richard 0 . 3011 Harview- Ave., Baltimore 14, Md. LM, David F. (B ) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. LMKAMPF, R. N. (G) Laclede-Christy Co. 2000 Hampton Ave., St. Louis 10, Mo. LSER, Perry D. (W FI) Box 674, St. Petersburg 1, Fla. (Consultant) JZ, Armin W . (W ) 20 Maryland Ave., Gaithersburg, Md. (U . S. Geological Survey) .VfBERG, Per Surte Glasswork, Suite, Sweden MPHILL, R. W . (W ) Colonial Insulator Co., 94S Grant St. Ak 11, Ohio MS /ER , Samuel E. (E l) RJt. 2, Windsor, Vt. (Consulting Engineer) UBY. E. B. (M ) National Engineering Co. Simpson Mix-Muller D ivr S49 W . Washington Blvd. Chicago 6, III. JDERSON, Frederick C. (W FI) Royal China, Inc., Sebring, Ohio fDERSO N, James L., Jr. (S ) Robinson Ventilating Co. Zelicnoplc, Pa. fDERSON, William W . (W ) Robinson Ventilating Co., Box 217 Zelienople, Pa. 4DREN, Robert R. (R I) 105 Bank Ave., Riverton, N. J. (Hoeganaes Sponge Iron Corp.) DRYX, Dwight B. (S ) Hwight B. Hendryx & Associates 6621 Darlington Rd., Pittsburgh 17, Pa. W E SSY , G. Gordon (M) Titanium Pigment Corp. 1376 River Ave., Pittsburgh 12, Pa. 1RAR, J. M. G. N. V. Porselein en Tegelfabriek WOSA MAASTRICHT Mcerssenerweg Maastricht, Netherlands *RY, Edward C. (X F I) 1121 Westmoreland Ave. Syracuse 10, N . Y. (General Electric Co.) Frank R. (R F) Sunondv Worden White Co. ? it St. & Negley PI. ..O hio ^ Y , Georges Uirctcur General i'* Union des Verreries Mcaniques rifces, 29, Quai de Brabant V^rieroi, Belgium P 4 , No. 10 (1955) H ENRY, Kenneth M. (G F) Owens-Illinois 1700 N . Westwood Ave., Box 1035 Toledo 1, Ohio HENSLER, J. R. (G) Chemical Research Lab. Bausch & Lomb Optical Co. Rochester 2, N. Y. H ENSO N, Charles W. (R) Norton Co., Worcester 6, Mass. HENW OOD, Reginald J. (R) 9444 Lynnhaven Rd. Cleveland 30, Ohio (Republic Steel Corp.) HEPPLEW HITE, J. W. (W FI) 13557 Cedar Rd., Cleveland 18, Ohio (Ferro Corp.) HERBERT, John S. (S ) W. G. Bush & Co., 174 Third Ave., N. Nashville 3, Tenu. H ERBERT, John W . (W ) 4647 W. 150th St., Cleveland 11, Ohio (Brush Electronics Co.) HERGER, Howard C. (G) Pierce Glass Co., Port Allegany, Pa. HERKO, Edward (GI) 392 Magee Ave., Rochester 13, N. Y. (Bausch & Lomb Optical Co.) H ERM ANN, James L. (W ) 3288 Earlmar Dr. Los Angeles 64, Calif. (Redondo Tile Co.) HEROLD, Paul G. (B F I) Radio Corp. of America Chemical & Physical Lab. Lancaster, Pa. HERPEL, Clarence M. (S) Southern Brick & Tile Co. Cherokee Station, Box 5 Louisville 5, Ky. HERRON, Robert H . (R ) 1634 N . Ironwood Dr., South Bend, Ind. (Bendix Products Div.) HERTZELL, E. A. (S) 1111 Chestnut St., Dover, Ohio (American Vitrified Products Co.) HESS, F. B. (G) Brockway Glass Co., Inc. Brockway, Pa. H E SS, Robert L. (R ) 44 H ess Blvd., Lancaster, Pa. (Armstrong Cork Co.) HESS1NGER, Philip S. (BJI) 330 Clinton St., Apt. C Columbus 2, Ohio (Ohio State University Research Foundation) HEUER, Russell P. (RF) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. HEW ITT, Arthur E. W. T . Copeland & Sons Ltd. Spode Works, Stoke-on-Trent, England HEW ITT, L. C. (R FI) Ironton Fire Brick Co., Ironton, Ohio HEW LETT, James Thomas (E ) Ingram-Richardson, Inc. Frankfort, Ind. HICKS, James C. (B ) 27550 Edgerton Rd., Los Altos, alif. (Kaiser Aluminum & ChemicaLCorp.) HICKS, John F. G. (G) 131 Thompson Dr., Painted Post, N. Y. (Corning Glass Works) HICKS, Robert G. (E ) 608 21st, Bettendorf, la. ... ^ (Herman Nelson Div., AAF) HIGGINS, Ray (W ) 191 Overlook Ave., Wadsworth, Ohio (Ohio Brass Co.) HIGGINS, Waldo W. (EFI) 655 S. Harrison Ave., Kankakee, 111. (A . O. Smith Corp., Permaglas Div.) HIGGS, Harold P. (B ) 165 Front St., Chicopee, Mass. (F. W. Sickles Co.) H1GMAN, JO H N W,, CO. (Robert J. Stone) 24 State St. New York 4, N. Y. HILDEBRAND, David (W ) Box 963, Alfred, N. Y. HILL, Dudley A. (M) 434 Crestwood Ave., Hackensack, N. J. (Kearfott Co., Inc.) HILL, "Eredi C. (SF ) 109 Morton Ave., Apt. 5 Ridley Park, Pa. HILL, John R. (S ) 403 Edgewater Apts. Charleston, W. Va. (Charleston Clay Products Co.) HILL, Lawrence I. (G) 507 Carver Blvd., Toledo 7, Ohio (Libbey-Owcns-Ford Glass Co.) H ILL, Robert G. Box 63, Florence, S. C. HILLING, James L., Jr. 129 Maple Ave., Altoona, Pa. HINCKLEY, Arthur T. (R) Oldbury Electro-Chemical Co. Niagara Falls, N . Y. H IN D , Stanley "The Mount," Etruria Rd. Basford, Stoke-on-Trent, England (Consulting Engineer) H IN D E S, Stanley V. (M) 88 Union Aye., Pittsburgh 5, Pa. (Pemco Corp.) H IN ES, Robert A. (B) 8729 Radiey Ct., Brentwood 17, Mo. (Missouri Portland Cement Co.) HINKINS, E. A. (G) Tygart Valley Glass Co., Box 503 Washington, Pa. H IN T 2E , Wollmar W :son Agatan 12, Bromolla, Sweden (A. B. Ifoverken) HIRSSIG , Carl F. (G) 1210 Fort St., Maumee, Ohio (National Lime & Stone (Jo.) HISCOCK, Harley J. (R ) Fuller Merriam Co., Box 69 West Haven, Conn. HITCHINS, R. A. (R) National Refractories Co., Inc. 17th Floor, Lewis Tower Bldg. 225 S. 15th St., Philadelphia 2, Pa. H IT N ER , Jan K . (R ) Zonolite Co., Box 217 Travelers Rest, S. C. HITZEMAN, Roger L. (W I) Globe-Union Inc., 900 E . Keefe Ave. Milwaukee 1, Wise. HOARE, Henry A. (W ) 2655 Sharondale Dr., N. E. Atlanta, Ga. (Georgia Sanitary Pottery, Inc.) HOBSON. Joe P. (S) Acme Brick Co., Box 425 Fort Worth 2, Texas HOCKING, William J. (W ) 1612 Pennsylvania Ave. East Liverpool, Ohio (Hall China Co.) HODGDON, Frank B. (B) Box 44, Station B, Toledo 6, Ohio (Owens-Illinois) HODGES, Leslie R,, Jr. Box .,1409, Atlanta, Ga. HODSOfcJ, George N. Th Hall, Wymeswold Nr. Loughborough, England (Hathernware, Ltd.) HODSON, Jean E. R. R. 4, Box 85, Bothell, Wash. HOEHL, Joseph W. (E ) Wolverine Porcelain Enameling Co. 3350 Scotten Ave., Detroit 10, Mich. HOELSCHER, Max W . (E ) 5010 Mayfield Rd., Lyndhurst 24, Ohio (Enamel Products Co.) HOENIG, Clarence L. University of Illinois Dept, of Ceramic Eng., Rm. 204 Urbana, III. HOFFMAN, Carl R. (Q) 1308 Seventh St., Moundsville, W. Va. (Fostoria Glass Co.) R oster 31 IAN, Sidney c. (C) 6 Lindy Lane, Lexington, Ky. tvania Electric Products, Inc.) A N , Willard II. J. (M) iingarric Rd., Baltimore 28, Md. nc>'-`!ld Sand & 1`cldspar Corp.) hre U. (G) .eaton Co., Millville, N. J. ETTER, G. W. (E ) ro Corp.,, 33fi 338 N. Central Ave. a g o 44, 111. ', Thom (W ) .tridge ( is Co. -380 S. idena 1. .).jf:'.d Ave. DOBL! 1, R. (G) dn-Bacr i Man-ifacturing Co. l Fiberf is 1 , Kansas City, Kans. ISON, V i'lin,,- (K) a g o Vi . , ... Cot 3 S . S5i > t, Cicero 50. 111. tN N , I k V- (G) 3 Park'. \ - f . / Kensi itsburgl f --L.ss Co.) NER, ! Pat La tn, Ohio Barton t an Clay ts o., Logan, Ohio Barton E. Ma; ogm , Ohio gan Cl s Co.) Y, Kc, Pritcb 0 aming, N . Y . ming :s, Gr. gers U v Brur ) Easton Ave. ... iS , JoV N . St S) Sa ford, N . C. * Brie' 2S. L> PiV -ne= C ) O 'n Farms teat J-s Sand Co.) ES, Ro S. Di f tsburg, rg. Co., Box 402 JUIS i rbison is Lai ; ctories Co. ' 7, Pa. STRC 11 Wa omingt (RI) S. meral Co.) 1HE1 . eus-I 10 N. ledo !, al Center Box 1035 T, Ta nkclv ore- SRH itiona' yngby, Denmark mark A /S ) (M) 7 F.. MA> illt-ti Its!..,, rinnati 2, Ohio ) Fifth Ave. IF.' li tfc` til >x R: Hajo 5 abrica d ilo 175 a. (F. 'L Hommel) rgk , Pa. - r '( ) xi i D. F., Mexico .. 1 1 Anfora, S. A .) ' Clyde oj 2 & North 22 E. ' 07th f 'l- i !. r Ha. .Oon 1? Helevan , lin in g Glas (G n e., ( ming, N. Y. Vor hSRnooyw'-. r. ( r.p . t. 6 Sf>tt j . i P l No. r' !' r'5) H O O P, M. C. v. d. H S U , Ku-hua N. V. Royal D elft Ware Manufactory 1, King's Terrace, 1st Floor v /h Joost Thooft & Labouchere Kowloon, Hongkong, B.C.C. Rotterdamseweg 196, Delft, Holland (Kiu Foong Enamel Factory (H .K .) HOOPER, Bradford (R ) Ltd.) S Point O'Woods Lane, Darien, Conn. HUBBELL, Dean S. (E ) (Babcock & W ilcox Co.) Mellon Institute, 4400 Fifth Ave. HOOTON, Norris A. Pittsburgh 13, Pa. R. R. 2, New Carlisle, Ind. H UBER, George S . (E ) HOOVER, Charles H. (R ) 314 Overbrook Rd., Baltimore 12, Md. 609 Wilton Rd., Towson 4, Md. (Femco Corp.) (General Refractories Co.) HUBER, Harold V . (G) H O PK INS, Robert W. (GI) 1300 Rancho Rd., Arcadia, Calif. Calumite Co., Box 151 H U BE R , J. M., CORP. Hamilton, Ohio (H . F. Jones, Jr.) 100 Park Ave. HOPPER, R. T. (D ) New York, N. Y. Hanovia Chemical & M fg. Co. HUBER-WARCO CO. 1 W . Central Ave., East Newark, N. J. AMERICAN CLAY M ACHINERY HORAK, William (R FI) DIV. (W . H. Merkel) 223 Raymond Rd. Bucyrus, Ohio W est Hartford 7, Conn. H U D SO N , Charles J. (R ) (Hartford Empire Div., 74 Newton St., W est Boylston, Mass. Emhart M fg. Co.) HUDSON SUPPLY & EQUIPM ENT CO. HORNFISCHER, Harvey W . (W ) (H . W. Heine) 377 W . Brockton, Royal Oak, Mich. 1727 Pennsylvania Ave., N. W. (Champion Spark Plug Co.) Washington 6; D . C. HORNING, Roy A . (GFI) Armstrong Cork Co., Lancaster, Pa. HUETTIG, Fred R. (W I) 21-B-3 Redfield Village H O RNUNG , Martin R. (W I) Metuchen, N . J. 140 E . Sheridan Ave., New Castle, Pa. (General Ceramics & Steatite Corp.) (Shenango China, Ine.) HUFFCUT, Harold W . (G) HORTON, Paul B. (W I) Westinghouse Electric Corp. Locke Dept., General Electric Co. Electronic Tube Div., Box 284 Box 57, Baltimore 3, Md. Elmira, N . Y . H O SSEN LO PP. Arthur M. (W I) H UG H ES, George B. (E ) 28 Kendall Ave., Maplewood, N. J. 236 Indiana Ave., Dayton 10; Ohio (H enry L. Crowley & Co., Inc.) (Frigidaire Div., General Motors Corp.) HOSTETTER, J. C. (GFI) HUGHES, Walter M .'.(W I) 1561 Dale Ave., Winter Park, Fla. 534 Putnam Ave., Zanesville, Ohio (Consultant) (Chicago Standard Transformer Corp.) HOUCHINS, Henry R. (W ) H U I, William L. C. (G ) Carborundum Co., Niagara Falls. N . Y. Radio Corp. of America, Tube D iv. H O U D ESH ELL, Robert J. (M ) 215 Basswood Ave., Apt. B Marion, Ind. H UK E, Frank B. (R ) Dayton 5, Ohio Norton Co., One N ew Bond St. (International Clay Machinery Co.) HOUGHTON, Amory (G) The Knoll, Corning, N. Y. Worcester, Mass. H ULL, J. Brannon (W)' Hull Pottery Co., 327 Amerine St. (Coming Glass Works) HOULAHAN, R. C. (S) Builders Brick Co. Crooksville, Ohio HULL POTTERY CO. (J. Brannon H ull) 327 Amerine St. 3800 Ninth Ave., S-, Seattle, Wash. HO USE, Roger L. Box 787, Alfred, N. Y. H OUSM AN. George S. (R) Box 17, Norristown, Pa, H O USTO N, M. Dean (R ) 507 Linden Rd., Eastview Terrace University Park, Pa. H OUZE, Armand L., Jr. (G) House Glass Corp., Point Marion, Pa. H O W ARD, Harold B. 131 Jersey Lane, Clemson, S. C. HOW AT, Walter L. (D F ) Walter Ilowat Decorative Ceramics 85 Hopping Ave., Staten Island 7, N . Y. H O W A TSO N , John (G ) Box 248, B ig Flats, N . Y. (Corning Glass Works) H O W A TT , Glenn (W ) Bldg. 6-B, Apt. 3, Redfield Village Metuchen, N . J. (Glenco Corp.) HOW E, Elroy E. (E F I) Crooksville, Ohio H U L SE , Charles O. 2240 Dwight W ay, Berkeley 4, Calif. H UM E, George W . (B ) General Electric Co., General Eng. Lab. Schenectady, N. Y . HUM ENIK, Michael, Jr. (B ) 28477 Parkwood D r., Inkster, Mich. (Ford Motor Co.) HUMMEL, Floyd A. (B ) College of Mineral Industries Pennsylvania 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 P lug Co.) HUM PHREY. Richard A. (W ) Mycalex Corp. of America Clifton Blvd., Clifton, N . J. Chicago Vitreous Corp. HUMPHRYES MANUFACTURING CO. 1425 S. 55th Court, Cicero 50, III. (D . J. Jones) 201 E. Fifth St. HOW ER, Lawrence D,, Jr. (R I) Mansfield, Ohio Raybestos Div., 75 E. Main St. H U N D , George J. (W ) Stratford, Conn. Columbia Dr., Chester, W . Va. HOWER, R. S. (BI) (Taylor, Smith & Taylor Co.) ' Allen-Bradley Co. 136 W . Greenfield Ave. . Milwaukee 4, Wise. HOW IE, Thomas W. Campbell & Co. (Roughcastlc) Ltd. Roughcastle Works, Falkirk, Scotland H U N D , Ralph (R ) Speer Carbon Co., Theresia St. St. Marys, Pa. . HUNGERFORD, R. M. (X) Claybum Co., Ltd.; 850 -W. H astings St. Vancouver 1, B. C., Canada HOYET, Eugene (G) R. R. 2, Box 332, Tarentum, Pa. (Pittsburgh Plate Glass Co.) H U N T . Charles W. (M ) 154 Vincent St,, Chagrin Falls, Ohio (Certain-Teed Products' Corp.) R oster 33 jgUNT, Herbert J. (G) ILES, Ramon R. (G) Kimble Glass Co.; Vineland, N. J. 2223 St. James Ct., Owensboro, Ky. jjUNT, John F. (MX) (General Electric Co.) Pacific Northwest Alloys, Inc. ILIFF, Fred K. (W ) Box 825, Coquille, Ore. Harshaw Chemical Co. jjU NTER, Charles E . (M ) Jackson & Swanson Sts. Box 430, Erwin, Tenn. Philadelphia 48, Pa. Consolidated Feldspar Dept., ILLING, Arno M. (W ) international Minerals & 5412 Laconia, Cincinnati 37, Ohio Chemical Corp.) (Cambridge Tile Mfg. Co.) jjUNTING , Everett C. (B I) 2030 Grove St., Berkeley 4, Calif. IL L IN O IS CLAY PRODUCTS CO. (Howard F. W est) 68 N. Chicago St. (Microchemical Specialties Co.) Joliet, III. flUPPERT, Paul A. (E l) 414 Randolph Rd., Plainfield, N . J. (General Ceramics Corp.) jjURD, Burgess M. (W ) 3 Windy Crest Rd., Beaver Falls, Pa. (Ceramic Color & Chem. M fg. Co.) HURLEY, Robert C. (S J ) 34S Third St., S. W . Medicine Hat, Alta., Canada (Medicine Hat Brick & Tile) HURLEY, Robert E. (B ) 469 Camden Ave. M oorestown, Burlington County, N . J. (RCA Victor) HURSH, Ralph K. (X F I) University of Illinois, Urbana, 111. HURST, Erwin J. (W ) General Ceramics Corp. Plant 3, Research Dept. Keasbcy, N. J. HURST, Thomas L. (R ) Monsanto Chemical Co. Columbia, Tenu. ILLYN, Alexis V. 183 Bevier Rd., University Heights New Brunswick, N. J. IM H OFF, Edward J. (M ) United States Glass Co. Glassport, Pa. IM M EDIATO . Robert R. (W JI) Sprague Electric Co., Nashua, N. H . IM PERIAL GLASS CORP. (C. J. Uhrmann) Bellaire, Ohio INDIANA GLASS CO. Dunkirk, Ind. IN D IA N CERAMIC SOCIETY (H . N . Roy) Dept, qf Ceramics Benares Hindu Univ.. Benares, India IN D U STR IA L CERAMIC PR O D U C T S, IN C . (C. R. Oberst) 965 W . Fifth Ave., Columbus 8, Ohio INGERSOLL, Harry (E ) Anaheim & Henry Ford Ave. Wilmington, Calif. (Pemco Corp.) HUTCH, Herbert T. (W ) INGHAM, David (M) 103 Woodbine Ave. 2794 St. Clair Ave. Newark 6, N. J. East Liverpool, Ohio (Pinover Publications) (H . B. Henderson & Co.) HUTCHISON, Clark (E F I) INGRAM -RICHARDSON, INC. 709 E. Arm strong St., Frankfort, Ind. (R. H . Coin) Jefferson Rd. (Ingram Richardson, Inc.) Frankfort, Ind. HUTCHISON, R. C. (R I) 2133 Newton Ave., Bethlehem, Pa. 'lethlehem Steel Co.) H jt Glenn A . (E ) 19629 Scottsdale Blvd. Shaker Heights 22, Ohio (Ferro Corp.) HUTT, Gordon M. (R) Canadian Pacific Railway 703 Windsor Station Montreal 3, Que-, Canada HUYCK, L. G. (E ) Huyck Construction Co. 1861 DeCook Ave.. Park Ridge, 111. HYATT, Edmond P. Dept, of Ceramics, University of Utah Salt Lake City. Utah HYDE, Collin (R I) 581 Oxford St., Worthington, Ohio (Battelle Memorial Institute) HYLAND, J. A. (M) ! Pacific Coast Borax Co. 12295 Lumber St., Chicago 16, 111. HYNES, Frank J. (W I) Oxbow Rd., Wayland, Mass. (Raytheon M fg. Co.) HYOLLE, Andre i Socit Generale de Carrelages 37, rue Leon Blum Feignies (N ord), France HYSLOP, Joseph F. "Dromore," Major's Loan Falkirk, Scotland (J. G. Stein & Co., Ltd.) IN SLEY , Herbert (BF) 5219 Farrington Rd. Washington 16, D. C. (Consulting Mineralogist) IN SLEY, Robert H. (B ) Champion Spark Plug Co., Ceramic Div. 8525 Butler Ave., Detroit 11, Mich. IN TERN ATION AL CERAMIC M INING, LTD. (C. W. Kitching) 577 Eglinton Ave., W. Toronto 12, Ont., Canada INTERNATIONAL CLAY M ACH INERY CO. (R . H . McElroy) 1145 Bolander Ave., Dayton 1, Ohio INTERNATIONAL COMMISSION O N GLASS (B. P. Dudding) Research Laboratories General Electric Co., Ltd. Wembley, Middlesex, England INTERNATIONAL M INERALS & CHEM ICAL CORP., CONSOLIDATED FELDSPAR DEPT. (H. B. DuBois) Erwin, Tenn. IRONTON FIRE BRICK CO. (J. H. Rickey, Jr.) Box 536 Ironton, Ohio IROQUOIS CHINA CO. (Robert E. Anderson) 2320 Milton Ave., Syracuse 9, N . Y. IR V IN E , George C ..(M I) Canadian Carborundum Co., Ltd. Niagara Falls, Out., Canada IR W IN , Joseph T. (E ) 1618 Elmwood Ave., Lakewood 7, Ohio (Consultant) 1 IANDER, J. Richard (M ) Pacific Coast Ceramic News 509 S. Beverly Dr. erly Hills, Calif. `Cl :WA, Yoshio 229 Valley Ave. Wahiawa, Oahu, Hawaii OfRIG, Allen C. (G) IRW IN. Philip P, (W ) Potters Supply Co. East Liverpool, Ohio IRW IN, William W. (W ) Potters Supply Co. II Washington St., East Liverpool, Ohio ISAACS. Richard P. (M ) 78 Elmwood Dr., Livingston, N . J. (Hammill & Gillespie, Inc.) 127 Coming Blvd., Coming, N. Y. (Corning Glass Works) Vol. 34, N o. 10 (1955) 1SAGAWA, Jun Nippon Toki Kaisha, Ltd. # 1 , Noritakcshinmachi, Nishiku Nagoya, Japan ISENH O UR, C. W ., Jr. (S ) Isenhour Brick & Tile Co., Box 1249 Salisbury, N. C. ISENH O UR, John H . (S F ) 215 Confederate Ave., Salisbury, N. C. (Isenhour Brick & Tile Co.) ITO, Shozo Nippon Gaishi Kaisha, Ltd. 1, 2-Chome, Horita-dori, Mizuho-ku Nagoya, Japan ITSCH NER. Robert Tannenrauchstrasse 106 Zurich 38, Switzerland IV ES, John B. (R I) 18 Standish St., Frostburg, Md. (B ig Savage Refractories Corp.) J JABBUSCH, Arthur J. (S) Pomona Terra-Cotta Co. Greensboro, N. C. JACKSON, A. Curtis (SF I) Robinson Brick & Tile Co. 500 S . Santa Fe Dr., Denver, Colo. JACKSON, James "Ashgrove," St. Andrews Ave. Bothwell, Lanarkshire, Scotland JACKSON, Mary A. . 486 Boynton Ave., Berkeley 7, Calif. JACKSON V ITR IFIED CH INA CO. (Philip R. Distillator) 2 West St. Pelham Manor 65, N . Y. JACKSON, Wharton JM) Wharton Jackson Co. 475 Huntington Dr. San Marino 9, Calif. , JACKSON, William M., II (W ) 13 Maura Dr., Woburn, Mass. (Godfrey L. Cabot, Inc.) JACOB, Bernard T . (R I) National Crucible Co. Mermaid Lane & Queen St. Philadelphia 18, Pa. JACOBI, James H. (E) Avco Manufacturing Corp. Crosley-Bcndix Home Appliances Div. Dept. 474, Nashville 1, Tenn. JACOBS, Charles W. F. (W ) 19 A Longmeadow Rd. Eggertsville 23, N. Y. (Titanium Alloy Mfg. Div., National Lead Co.) JACOBS, H. Box 117, Vereeniging Transvaal, South Africa . JACOBS, Louis J. (R ) Ramtite Co., 2563 W. 18th St. Chicago 8, III. JACOBS, Richard A. (G) Brockway Glass Co., Inc. Brockway, Pa. JACOBY, William R. 241 Upson Lane, University Heights New Brunswick, N . J. JAFFE, Bernard (B I) 3363 Milverton Rd. Shaker Heights 20, Ohio (Brush Laboratories Co.) JAMESON, Robert J. (G) Libbey-Owens-Ford Glass Co. 1701 E . Broadway, Toledo 5, Ohio JAM ISON, C. Donald, Jr. (R) Koppers Co., Inc., Eng. & Const. Div. Koppers Bldg., Pittsburgh 19, Pa. JANKOW SKI, Charles. R. 16 Hakes Ave., Horaell, N. Y. JANSMA, Frank (M) B. F. Drakenfeld & Co., Inc. Washington, Pa. JANSSEN, William F. (M ) IS Oak Ridge Rd., Basking Ridge, N. J. (BeU Telephone Labs.) R oster 37 ; j h ! - ! : r 'ERS, Phillip . (RJ) tax 125, Gardner, 111. Gannirai Refractories Co.) 'ERY, Benjamin A. (W ) 3o.x 32, Tumacacori, Ariz. / \pion Spark Plug Co., ics Div.) -REY, G. H . (W ) Roder Ceramic Studio, 1331 Race St. Philadelphia 7, Pa. NEK , James W . (BJI) 1203 Seventh Ave., Marion, la. KS, C. E. (M) W. S. Tyler Co. 1615 Superior Ave., N . E. Cleveland 14, Ohio NXNGS. James W. (E ) Quaker Silver Co., Inc. North Attleboro, Mass. SE N , Edwin K. (E ) 11071 Charlemagne, Detroit 5, Mich. (Briggs M fg. Co.) PSON, George N . (R F) Norton Co., One New Bond St. Worcester 5, Mass. O, Parker ( ) 119 Riverview O .-- CMR 153 Peoria Heights, 111. (Caterpillar Tractor Co.) M ERSON, James E. (X ) Henderson Clay Products, Box 870 Henderson, Texas INS-MANVILLI'. SALES C O SP. (J. C. Crawford, Jr.) 22 E. 40th St. New York 16. N. Y. INS, William V. (W ) Sbenango Chinn Inc., New Castle, Pa. iN SO N , Alexander H. H. L. Brisbane Wunderlich Ltd. Lord St., East P rth, W est Australia IN SO N , Alton F. (W I) 4* N . 53rd St , Milwaukee, W ise. ( 1-Union, T- c.) IN bu N , A. L. ( VF) Universal-Rund! Corp. W . Keith M cAf c Lab., Box 1263 Mahoningtown, I'a. INSON, A. M. ( t) Ross-Tacony Cr ble Co. Robbins & Milne Sts. Philadelphia 35, n. HNSON, Ben (S O Box 576, Wask> n, Texas (Acme Brick Ci HNSON, Boyd V Carborundum C Perth Amboy, I HNSON, David 510 Southland 1 (Corhart Re fra 'HNSON, 1st Ut. QM School, Bo HNSON, Earle 1 /Eureka Brick i Box 338, Clarks HNSON, v ..it, 808)1 W . C.rer. HNSON, Fr- ' Summitvillc '(Summitvi! 1 NSON, Get tfGladding, Met' P ittiburg, fiali ORNSON, ; ,i,, 24188 C North ( (Ferro ' .) to n so n 1 * (R) . Box 268 J. (B J) 'd., Louisville 14. Kv. ies Co., Inc.) Imar A. (G) 127, Ft. Lee. Va. (S) Hie Co. !e, Ark. St., Urbana, III. Jr. (S ) Brick Co.) , Jr. (R I) & Co., Box 630 (E) Ohio (G) rks StoV gN Si 1 . '' Ilerrit . Ltd., Leek New Rd \ i .ngtand (XJI) 1. Columbus, Ohio | p 4 . N o . K. H955) JOHNSON, James R. (B I) 109 Newberry Circle, Oak Ridge, Tenn. (Union Carbide & Carbon) JOHNSON, LeRoy A. (E ) 1206 Cleveland St., Evanston, 111. (Chicago Vitreous Corp.) JOHNSON, Paul V. (SF ) Structural Clay Products Research Foundation, Geneva, 111. JO H NSO N, William A. (E ) 7269 Greenleaf Ave. Cleveland 30, Ohio (Ferro Corp.) JO H NSTO N, J. G. Leeds Fireclay Co., Ltd. Wortley, Leeds 12, England JO H NSTO N, James K. (M ) R. R. 5, Hagerstown, Md. (Fairchild Aircraft Div.) JOLLEY. Robert W . (R) 10 Ox Bow Lane, Bloomfield, Conn. (Hartford-Empire Co.) JO N E S, Cecil M., II (R ) 2814 Jordan St., Fleming Heights Augusta, Ga. (Babcock & Wilcox Co.) JONES, D. J. (W ) Humphryes Mfg. Co. 201 E. Fifth St., Mansfield, Ohio JO N ES, Frank L. (G) Koppers Co., Inc., Box 128, Verona, Pa. JONES, H. F., Jr. (W ) J. M. Huber Corp., 100 Park Ave. New York, N. Y. JONES, Harlow G. (B) Mid W est Abrasive Co. 510 S. Washington St., Owosso, Mich JO N ES, Howard E,, Jr. (R ) 19150 Robson, Detroit 35, Mich. (Davis Fire Brick Co.) JO N E S, James M. 832 S. Vine St., Orrville, Ohio JO N E S, Maynard J. (E ) Pfaudlcr Co., 1000 W est Ave. Rochester 11, N. Y. JO NES METAL PRODUCTS CO. (Edwin F. Mulligan) W est Lafayette, Ohio JONES, Paul R. (X ) West Virginia University Dept, of Chcm. Engr. Morgantown, W . Va. . JO N ES, Richard E. (R ) Pittsburgh Plate Glass Co. Research laboratory, Creighton, Pa. JO N E S. Robert O. (R) Standard Slag Co. Box 3, Gabbs, Ncv. JONTZ, Melvin L. (M ) United Clay Mines Corp. 5028 Alhambra Ave. Los Angeles 32, Calif. JORDAN. Duane R. (GJ) 220 Belmont Ave., Oneida, N . Y. JO RDAN, John N. (G) Consumers Glass Co. Ltd. Box 456, Station B. Montreal, Que., Canada JO RDAN, John W . (M ) Baroid Div., National Lead C o.* Box 1675, Houston 1, Texas JORDAN, R. E,, Jr. (W ) Mosaic Tile Co., Zanesville, Ohio JORDAN, Thomas B. (S ) Mosaic Tile Co., 829 N. Highland Ave. Hollywood 38, Calif. JOSEPH, A. David (BJ) 105 Cumberland Ave., Verona, N . J. JOVA BRICK W ORKS (J. L. Jova) Roseton, N. Y. JOVA, J. L. (S ) Jova Brick Works, Roseton, N . Y. JOYNER, Bobby L. (W ) Erie Resistor Corp., 644 W . 12th St. Erie, Pa. JUELSS, David (M) American Lead Pencil Co. 500 Willow Ave., Hoboken, N . J. K KADEY, Frederic L., Jr. (B ) 1825 Quimby Lane, Westfield, N . J. (Jobns-Manville Corp.) KAHLSON, W . S. (G) General Electric Co., Lamp Dept. Pitney Glass Works, Nela Park 12 Cleveland, Ohio KAHN, Max (G) 4932 Oleander Dr., Wilmington, N . C. (National Bureau of Standards) KAISER, Leonard F. (G ) 332 E . Wayne St., Maumee, Ohio (Libbey-Owens-Ford Glass Co.) KAISER, William E. 143 E . Frambes Ave., Columbus, Ohio KALLUP, Charles, Jr. (R I) General Refractories Co. 3201 Fruitiand Ave. Los Angeles 58, Calif. KALMAN. Frank R. (E l) 2014 Baxterly Rd., Lakewood 7, Ohio (Pemco Corp.) KALOUSEK, George L. (G) 2633 Merrimac Blvd., Toledo 6, Ohio (Owens-Illinois) KAMICH, Barnet Z. (B ) 11 Garwood St., South River, N. J. (Army Ordnance Corps) KANE, David W . (RJ) 307 H illcrest Rd., Raleigh, N. C. KANE, John L . (W ) 8457 W icklow Ave., Cincinnati 36, Ohio (Cincinnati Milling Machine Co.) KARKHAN AVALA, M. D. 239, Botawala Bldg., Tardeo Bombay 7, India (Atomic Energy Commission) K ASSEES, John S. (B) American Testing Lab., Inc. Box 1421, Lancaster, Pa. KAST, Edward T. Box 847, Alfred, N . Y. KAST, Henry G. (SJ) 120 S. Orchard St., Logan, Ohio (Claycraft Co.) KASTEN, Vernon L. (W I) Three Oaks, Box 84, Jackson, Mo. (Ceramo Co. Inc.) KATZ, Joseph M. (W I) 625 E. Fifth St., Brooklyn 18, N. Y. KATZ, Sigmund (E ) Orange Ceramic Lab. 17 Kenz Terrace, W est Orange, N. J. KAUFFM AN, John R. (M FI) 160 Fairview Ave., Elmhurst, 111. (Tuttle & K ift, Inc., Subsidiary Ferro Corp.) KAUTZ, Karl (E F I) 24 Leon Rd., Pittsburgh 20, Pa. (Vitro Mfg. Co.) KAY, William T . (R ) E. J. Bartells Co. 1212 Sixth Ave., S., Seattle 4, Wash. KAYLOR, William B. Key-James Briek Co., Alton Park Chattanooga, Tenn. KAYSER, Julius A . (R ) Gladding, McBean & Co. 2901 Los Feliz Blvd. Los Angeles 39, Calif. KEANEY, J. C. (G) 1201 Banksville Rd., Pittsburgh 16, Pa. (National Lime & Stone Co.) KEARNEY, John P. (G) 2723 Densmore Dr., Toledo 6, Ohio (Kimble Glass Co.) KEBLER, Leonard (E ) Ward Leonard Electric Co. Mt. Vernon, N . Y. KEEFER, George E. (G) Owens-Illinois, Technical Center 1 /V V IN . W CakWUUU A V C . Toledo 1, Ohio KEENER, Harry J. (B ) General Color & Chemical Co., Inc. Box 7, Minerva, Ohio R oster 39 I^ENER. Harry T. R. R. 3, Minerva, Ohio LglTH, Miss L. C. , ^ Canadian Ceramic Society 49 Turner Rd. Toronto 10, Ont., Canada J^lT H , Wendell P. (RI) TM 1234 E. Marvista St., Whittier, Calif. (W. P. Keith Co.) 'LER, Francis Pfungen, Switzerland (Keller & Cie. A.G.) . /LLY, George D. (G) ; ^ 1064 Neil Ave., Columbus 1, Ohio (Battelle Memorial Institute) ; 0 LLY, Hal J. (R) * .6 0 2 5 52nd N . E., Seattle 5, Wash. .i (U . S. Bureau o f Mines) *rfLLY, John V. (R) Kaiser Steel Corp. Box 217, Fontana, Calif. .! ffcLLY, Joseph F . (R ) * 301 Braddock Ave., Lansdowne, Pa. (Naval Boiler & Turbine Lab.) \Y , William J. (W I) Box 265, Hondo, Texas (Universal-Rundle Corp.) l^jgLSEY, V . V . (MF) Dominion Minerals Div., Riverton Lime & Stone Co., Inc. Piney River, Va. ,SO, Marjorie P. 669 Coventry Rd., Berkeley 7, Calif. ifetT O N , Stanton C., Jr. (G) Rohm & Haas Co., Bristol, Pa. P, John A., Jr. (W ) 22509 Gaycrest Ave., Torrance, Calif. (American-Standard) PF, William C. (R I) 28 Homer PI., Metuchen, N . J. (Carborundum Co.) NAGY, William L. (RI) 770 Fetters Mill Rd. Huntingdon Valley, Pa. (Simonds Abrasive Co.) DALL, Thomas A . (S ) TTuiversity of Kentucky ).lege of Eng., Lexington, Ky. ..JRICK, Thomas B. (G) ^. Lancaster Lens Co. 220-226 W . Main St., Lancaster, Ohio NEDY, Richard W . (W ) Star Porcelain Co. Box 1329, Trenton 7, N. J. T , Joseph P. (W I) 247 Starr St., Brooklyn 37, N. Y. (Leviton Mfg. Co., Inc.) T, N. Johnson (RI) Johns-Manville Sales Corp. 22 E. 40th St., New York 16, N. Y. n , William B. (W I) W. S. George Pottery Co. W?1 Canonsburg, Pa. ,,E N T U C K Y CLAY M INING CO. .1 (W. J. Watkins) Mayfield. Ky. " ENTUCKY-TENNESSEE t ,3 CLAY CO., INC. (Chester Gulick) v.* City Savings Bldg., Alliance, Ohio W O R T H Y , Orville O. (B) fel N 86 Arthur Ave., Lakewood 7, Ohio J|L ^ erro Corp.) IP iY A KYANITE LTD. 28 Eccleston St. .London, S. W . 1, England -WON, Clark (W ) Prenchtown Porcelain Co. Frenchtown, N. J. pKA, George M. (M I) hraun Corp., 1363 S. Bonnie Beach PI. tjep i03 Angeles S4, Calif. 1 pLINGER, Robert B. (R FI) " Carroll Clay Co. "* 56, Carrollton, Ohio ^NS. M. P,, j r. (E ) Ycr Chemical Co. Madison Ave., New York, N. Y. - ' . Hans (R) .tr " eaumont Ave., Baltimore 12, Md. 'Kerloid Corp.) *V34, No. 10 (1955) KERPER, Matthew J. (B I) National Bureau of Standards Div. 9.3, Washington 25, D. C. KERR, Charles H. (GF) 2861 Chatsworth Blvd. San Diego 6, Calif. KERR, John M. 1008 S. Fourth St., Champaign, 111. KERR, W. Raymond (R FI) Armstrong Cork Co. Box 441, Beaver Falls, Pa. KERSHNER. William G. (W I) 117 S. 14th St., Olean, N. Y. (Olean Tile Co.) KESKI. James R. 8610 44th Ave., S., Seattle 18, Wash. KESTER, Ralph G. 1394 June Drive, Maumee, Ohio KIBLER, H. W. (W) Southern Potteries, Inc. Box 279, Erwin, Tenn. KIEHL, Harry R. (G) 223 Chemung St., Corning, N. Y. (Corning Glass Works) KIESOW, Paul F. (G) 243 Yi College Ave., Elmira Heights, N. Y. (Westinghouse Electric Corp.) KILGORE CERAMICS CORP. (D . H. Walkup) Box 1619 Kilgore, Texas KIMBLE GLASS CO. (H . R. Black) 1700 N. Westwood Ave., Toledo, Ohio KIMPEL, Robert F. (R ) 1138 N. Alameda Ave., Azusa, Calif. (Aerojet General Corp.) KIMPTON, Dudley D . (G) 1607 W. PaTk Ave., Champaign, 111. (Anderson Physical Lab.) KING, Burnham W., Jr. (E F I) 316 Frontenac PI., Worthington, Ohio (Battelle Memorial Institute) KING, Charles B. (G) 189 Cedar St., Coming, N. Y. (Corning Glass Works) KING, Pvt. Harry M. (MJ) US26331036, 12th Field Hospital Fort Leonard Wood, Mo. KING, R. M. (E F I) Lord Hall, Ohio State Univ. Columbus 10, Ohio KING, Robert G. (W ) 143 N. Center St., Grove City, Pa. (Vitro Mfg. Co.) KING, Robert M. 807 S. Victor, Champaign, 111. KING, Walter F. (M) 365 Arborlea Ave., Morrisville, Pa. (Shenandoah Silica Co., Inc.) KINGERY, W. D. (B) Ceramics Div., Mass. Inst, of Tech. Cambridge, Mass. KINSM AN, Bradley Q. (M JI) % Louis Bellanca 59 Bemis Ave., Homell, N. Y. KIRCHER, Paul J. (G) Maryland Glass Corp. 2147 Wicomico St., Baltimore 30, Md. KIRCHER, Wolfgang (22b) Eisenberg/Pfalz Tiefenthalerstr 16, Germany KIRCHNER, Henry P.. Jr. (B) Coming Glass Works, Coming, N. Y. KIRK, Edwin (W ) U. S. National Museum Washington 25, D. C. KIRKENDALE, G. A. (S I) c/o American Embassy Tel-Aviv, (Mail Room) Dept, of State Washington 25, D. C. KIRKPATRICK, Frank (W FI) 840 Strand, Herraosa Beach, Calif. (Gladding, McBean & Co.) KITCHING, C. W. (E ) International Ceramic Mining, Ltd. 577 Eglinton Ave., W. Toronto 12, Ont., Canada KLANE, Frank (G) Coruing Glass Works, Corning, N. Y. KLAUS, Irving (W ) 137 Winthrop Rd., Washington Park Nixon, N. J. (Permadent Products, Inc.) KLAUS, Sol C , Jr. (W ) 50 S. Munn Ave., Apt. 804 East Orange, N. J. (Automatic Mfg. Corp.) KLEEMAN, Lee A. (R) Box 568, New Orleans 7, La. (Harbison-Walker Refractories Co.) KLEIN, Jonathan D. Massachusetts Institute of Technology Rm. 4-051, Cambridge 39, Mass. 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 & Tile Corp. 123 N. W. Fourth St. Evansville 8, Ind. KLIMAN, Morton I. 6 Sutton St., Mattapan 26, Mass. KLINE, Hugh L. (R) Corhart Refractories Co., Inc. 1600 W. Lee St., Louisville 10, Ky. KLINEFELTER, T. A. (RFI) Box 201, Norris, Tenn. (U . S. Bureau of Mines) KLOCKE, Edward J. (M) H . C. Spinks Clay Co., Inc. 1000 First National Bank Bldg. Cincinnati 2, Ohio KLOCKNER, Herman Richard (E) Universal-Rundle Corp. W. Keith McAfee Lab., Bx 1268 Mahoningtown, Pa. KNAPP, Robert C. (W ) 26 Virginia Ave., N. W. Glen Bumie, Md. (Locke Dept., General Electric Co.) K NAPP, Thomas E. (W ) R. R. 3, Mission Meade Rd. New Castle, Pa. (Shenango China, Inc.) KNAPP, William J. (I) Institutt for Silikatforskning Norges Tekniske Hogskole Trondheim, Norway KNAUF. Mr. Deutsche Keramische Gesellschaft Poppelsdorferallee 15, Bonn, Germany KNAUFT, Robert W. (R) Charles Taylor Sons Co. Box 58, Annex Station Cincinnati 14, Ohio KNECHT, Albert O. (W I) 201 Edgewood Ave., New Castle, Pa. (Universal-Rundle Corp.) KNIGHT, E. H. (S) Maurice A. Knight Sons Co. Box 150, Crooksville, Ohio KNIGHT, M. A., Jr. (S ) Maurice A. Knight, "Knight-Ware" Box 111, Akron 9, Ohio KNIGHT, MAURICE A., "K N IG H T-W A R E" (M. A. Knight, Jr.) Box 111, Akron 9, Ohio KNIGHT, Mellen A. (G) Minnesota Mining & Mfg. Co. 2301 Hudson Rd., St. Paul 6, Minn. KNIGHTON, Heywood J. (G) 834 Trombley Rd. Grosse Pointe Park 30, Mich. (Ford Motor Co.) KNIZEK, Jan Otto (R) Apartado 2739, Mexico, D. F. Mexico (Compaa Mexicana de Tubos de Albanal, S. A.) KNOBLAUGH, Walter C. (R I) 512 N. Washington St., Tiffin 9, Ohio (Basic Refractories, Inc.) R oster 41 OPF. Eugene G. J4 Van Antwerp Bldg. Netherlands Village Schenectady, N. Y. U O W L E S , E D W IN M,, C H IN A CO- Newell, W . Va. WLES. Philip S. (S ) 441 E . Buford Rd., Macon, Ga. (Cherokee Brick & Tile Co.) (JIOWLES, William V. (E F ) 3 ! 8905 Champlain Ave. . ; Niagara Falls, N. Y. : 10W LTON, Samuel H . (M ) 'T 610 N ew Center Bldg., Detroit 2, Mich. I (Aluminum Co. of America) x blOX. James J. (G) ; 5 Meinzer St., Avenel, N. J. ' (Knox Laboratories, Inc.) 1 blUDSEN, Friedrich P . (B I) . 4912 Crescent St., Washington 16, D . C. (National Bureau o f Standards) i- fliUDSEN. Rolf j j r Borgestad, P . A.. Norway '>; (Borgestad Fabrikker) I ^ U T S E N . Eivind (R ) Western Refractories Co. Box 169, lone. Calif. s [OCH, Daniel O. (B ) du Pont de Nemours & Co., Inc. Electrochemical s Dept. - , 71 Buckingham Ave. r f : Perth Amboy, N. J. 0CH, Frank A. (M) t" National Sales Corp. 1. 307 E . Fourth St., Cincinnati 2, Ohio 0CH, Renato r Direttore Stabilimento Tubi Elettronici i Marconi Italiana S.p.A. ! Via Pile, L'Aquila, Italy tOCH, William J. (W I) ] P. R. Mallory & Co., Ine. |: 3029 E . Washington St. * .Indianapolis' 6, Ind. j'IANEK, Michel (R ) . 4141 153rd St., S. E ., Bellevue, Wash. Y (Gladding, McBean & Co.) fEHLER, W. A. (R I) Mineral Industries Bldg. West Virginia University Morgantown, W. Va. fOENIG, Charles Jacob (W F I) s Engr. Expt. Sta., Ohio State University : Columbus 10, Ohio jOENIG, E . W . (M ) -I Consolidated Feldspar Dept. 'j International Minerais & Chemical Corp. ; Erwin, Tenn. WENIG, John IT. (W F I) i Rutgers University ; School of Ceramics ; New Brunswick, N . J. 'X>ENIG, L. C. (X ) j I.indberg Engineering Co. - 2450 W . Hubbard St., Chicago 12, 111. .J011L, Hans Germany I-eerbachstr, 117 1 Frankfurt A. M., 1 Olegussa) ;4! J-F-R, A. V . (R ) J' Habcock & Wilcox Co. -t E. 42nd St., New York 17, N . r' LER CO. (G. P. Gavin) "Her, Wi<c. k I Joseph (W ) nivcrsal Dental Co. 'h 8t Tlrown Sts., Philadelphia 39, Pa. F., Frank II. (W ) 0 Third Ave., New Brighton, Pa. I1 ramie C, 1er 8t Chemical M fg. Co.) ' CHO'l ' 1', H. G. P. emetic " reniging r de 1 1andse lewei 'Kweg G lasin d u strie , Gijswijk, Netherlands Thor N. (R.) "'lie ! ! m i Corp. Ave., Cleveland 25, Ohio KONOP1CKY, Kamillo Forschungs-Institut Der Feuerfest-Industrie Hclmholtfstrasse 25/27 Bonn, (W estern), Germany KONOW ITCH, Gilbert D . (RJ] 2003 N . 73rd Court Elmwood Park 35, III. KONRAD, Howard E. (R ) 41 Brookside Ave., Apt. 7-B Somerville, N. J. (Johns-Manville Corp.) KB.1GER, Frederick S. (G ) 148 E . Second St., Coming, N . Y, (Coming Glass Works) KRILL, Karl E. (B ) Ohio State Univ., Res. Foundation Columbus 10, Ohio KROCHMAL, Jerome Jay (RJ) 4540 Brenau Ave., Dayton 9, Ohio (Wright-Patterson A FB, Ohio) KROECK, William H. (G) Coming Glass Works Box 544, Coming, N . Y. KOOIJ, K. K ROGSTIE, Lars Bernhard Chamotte Unie N.V. Tielerweg Geldermaisen, Holland Fredriksted, Norway (Norsk Teknisk Porselenfabrikk) KOOS, E. K. (W I) Sterling China Co. East Liverpool, Ohio KOPP GLASS, INC. (C. E. Leberknight) Box 8255 Pittsburgh 18, Pa. K O PPER S CO., INC. (Frank L. Jones) Box 128, Verona, Pa. KORA, Yosio 2 Chme, Katsuyama-Cho Yahata, Fukuoka, Japan (Kurosaki Fire Brick Mfg. Co. Ltd.) KOSHUBA, Walter J. (B I) 424 Hillcrest Dr., Wyoming 15, Ohio (General Electric Co.) KOWAL, Leo B. (G) Canadian Pittsburgh Industries, Ltd. 300 Blvd. St. Croix Ville St. Laurent, Que., Canada KOWALKA, Warren R. (G) I.ibbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio KRAFT, C. W . (S ) Kraftile Co., Niles, Calif. KRAFT, Donald E. Co. A, 185th Signal Bn. Camp Polk, La. KRAFT, Maurice M. (G ) Kraft Chemical Co. 917 W. 18th St., Chicago, 111. KRAFT, Ralph G. (B ) 102 W . Chateau Place Milwaukee 17, W ise. (Allen-Bradley Co.) KRONBERG, Marritt L. (B ) General Electric Co., Research Lab. Schenectady, N . Y. KRONMAN, Samuel J. (W I) Carteret China Co. High St., Carteret, N . J. KRULL, Alan R. (B ) Technological Institute Library Northwestern University Evanston, 111. K RUSO N, Joseph H . (R ) Box 358, Frostburg, Md. (B ig Savage Refractories Corp.) KUECHLER, A. H. (RI) 1210 Lane Ave., Phoenixville, Pa. (A. P. de Sanno & Son, Inc.) KULCSAR, Frank (B ) Brush Labs. Co. 540 E . 105th St., Cleveland 8, Ohio K U N Z , Joseph F . (G ) 265 Roslyn St., Rochester, N. Y. (Bausch & Lomb Optical Co.) KUNZM AN, Edward E. (M I) 9185 E. Jaylee Dr., Temple City, Calif. (S . Paul Ward, Inc.) KURKJIAN, Charles R. Massachusetts Institute of Technology Rm. 4-030, Cambridge 39, Mass. K URTZ. Peter, Jr. 827 Second St., Apt. C. Santa Monica, Calif. KYANITE M INING CORP. (Gene Dixon) Cullen, Va. KYOKWAI, Yogyo Ceramic Assn, o f Japan K RAFTILE CO. (C. W . Kraft) Niles, Calif. 7, Shiba-Nishikubo-Sakuragawacho Minato-ku, Tokyo, Japan KRAMER. Irvin R. (R) K YONKA,.Joseph C. (W I) 2 Bonnie Meadow Rd., Scarsdale, N. Y. 5530 Terre Haute St., Madison 5, Wise. (Mercast Corp.) (Ceramic Arts Studio) KRAMER, William Meigs (G) Adamston Flat Glass D iv,, Rolland Glass Co. Box 631, Clarksburg, W . Va. K RANER, Hobart M. (BF1) Bethlehem Steel Co. Bethlehem, Pa. KREGER, John M. (R ) Valentine Fire Brick Co. Div. A. P. Green Co. Woodbridge, N . J. KREHBIEL, Frederick H . (W ) Accurate Pyromtrie Cone Co. Pataskaia, Ohio KREHBIEL, H. Orton (R ) Accurate Pyromtrie Cone Co. Pataskaia, Ohio KREIDL, E. L. (G) Y. A. D. Little, Inc. 30 Memorial Dr., Cambridge, Mass. KREIDL, Norbert J. (GF) 40 Milford Rd., Rochester 10, N . Y. (Bausch & Lomb Optical Co.) KRKTSCHMAR, Ernest (G) Electro-Phos Slag Co. 101 S. Meramec Ave., Clayton 5, L LABANSAT, M. Jacques Socit Professionnelle Des Produits Franais De Terre Cuite 23, m e de Cronstadt, Paris X V , France LABORATORIO QUIM ICO NACIONAL (Jorge Ancizar-Sordo) M inister de Minas y Petroieos Apartado 2577, Bogota, Colombia LACHMAN, Irwin M. (I) 32 Pine Dr., Roosevelt, N . J. LACLEDE-CH RISTY CO. (W . L. Fabianic) 470S Ridgewood Ave. St. Louis 16, Mo. LACONICH, Sixto Godo'fredo Porcelana Americana S. A. San Julian y Andes Lomas de Zamora, F.C.N.G.R. Argentina LADOO, Raymond B. (W ) 42 Huntington Rd., Newton 58, Mass. (Consulting Engineer) LaFORGE, Louis H ., Jr. (W ) 764 Marion Ave., Palo Alto, Calif. Mo. (Stanford University) K REUER, Albert L. (M ) Orefraction, Inc,, 7425 Thomas St. Pittsburgh 8, Pa. LAIRD, Charles (S I) Box 462, Holly Springs, Miss. (Holly Springs Brick & Tile Co.) KRIEGEL, W. Wurth (X FI) North Carolina State College Ceramic Engineering Div. Raleigh, N. C. LAIRD, Robert K. (E ) American Radiator & Standard Sanitary Corp., Plumbing Div. 834 E. Broadway, Louisville 4, Ky. "Dne*PTST AQ E, Robert V. (RJ1) nill Rd.. Warren Tp. .field, N. J. :rnational Nickel Co., Inc.) lal 'M ) n :, 1363 S. Bonnie Beach PI. An,, j 54, Calif. C. M. (MFI) ed States Gypsum Co. W. Adams St., Chicago 6, III. XT, Joseph M. (G) on Institute, Pittsburgh 13, Pa. RTSON, Wingate A. (B I) tute of Silicate Research ersity of Toledo do 6, Ohio J. M. (R) lay Clay Products Co. hington, Pa. \C K , Charles R. (W ) or, Smith & Taylor Co. ter, W . Va. Benjamin M. tute o f Silicate Research 'ersity of Toledo, Toledo 6, Ohio eorge J. (W ) tr Plastic Kaolin Co. r, Fla. {chard O. (W I) <lin Co., 2917 Wildwood Ave. son, Mich. Seorge F. (G) -Lowrey Glass Co. 356, Baltimore 3, Md. {chard L. (G) Fuel Gas Co. 4. Fourth St., Zanesville, Ohio Samuel G. (E ) twood Glass & Metals Co. 865, Martinsburg, W. Va. 5. M. (W ) i Braddock Rd., Oakview er Sr-Sng, Md. tio- i.reau o f Standards) , Ja. ,'M. (R ) ilebem Steel Co., Bethlehem, Pa. . Louis A. (M ) istrial Heat Control Products Hawthorne Ave. :h Milwaukee, Wise. OD. Kasimir (W ) Locust Terr. t Hempstead, N. Y. lvania Electric Products Co.) TON, Robert B. versity of California rst Mining Bldg., Rm. 164 iceley 4, Calif, i , William S. (R) cock & W ilcox Co. Savannah Rd., Augusta, Ga. S, Eugene M. (R I) 5 N . Union St., Fostoria, Ohio chard C. Remmey Son Co.) Grover W . (M F ) ip Engineering Co. W. Main St., Le Roy, N . Y. IN SU LATO R CO., INC. E. Stcttinius) Le Roy, N. Y. :H , Herbert W . (EJ) Fairview Ave., Valley Stream, N . Y. N, Paul G. (D ) Harrison St., Campbell, Calif, irkin Tile Co.) CA, Frank J. (R ) Orado Fuel & Iron Corp. c 316, Pueblo, Colo. N, Marie 5 Bing & Grondahl derbrogade, 149 *cnha- Denmark N, : F . (S ) 8 No....an Ave., N. W. aton 9, Ohio 3arta Ceramic Corp.) |N, Thomas L. Ash Ave., Ames, la. *AN, Malcolm E. 'S.w. Mosier PI., Denveij.23, Colo. K No. 10 (1955) ) LASKY, Elliott Box 847, Alfred, N . Y. L A T C H FO R D -M A R B L E GLASS CO. (C. L. Dillon) Box 71707 Los Angeles 1, Calif. LATHROP, Lt. Donald R. (GJ) A 030102S9, 623 A.C. & W. Sq., Det. 2 APO 239 c /o Postmaster San Francisco, Calif. LATIM ER, Glen H . (R ) 2613 Dogwood Ln., East Norriton Tp. Norristown, Pa. (E. J. Lavino & Co.) LATIMER, Horace L. (E l) Box 282, W est Lafayette, Ohio (Moore Enameling & Mfg. Co.) LATIMER, Trent W. Ohio State University, Baker Hall Columbus 10, Ohio LA T TIN , Judson M. (R) 14644 S. Edbrooke Ave., Dolton, III. (International Harvester Co.) LAUCHNER, Julian H. J 27 A Stadium Terrace Champaign, 111. L A U G H L IN , HOM ER, CH INA CO. (J. M. W ells) Newell, W. Va. LAURIE, Dominic (R I) Titanium Alloy D iv., National Lead Co. Niagara Falls, N . Y. LA W L ESS, Emmett A., Jr. (S ) Alton Brick Co., Box 394, Alton, 111. LAW RENCE, Howard O. (W ) Industrial Ceramics Ltd. Cooksville, Ont., Canada LAWRENCE, Ralph V. (R) 145 Leonard Dr., Concord, Calif. (Gladding, McBean & Co.) LAW RENCE, Walter F., Jr. (W I) 153 Morningside Rd., Verona, N . J. (RCA Victor) LA W R EN C E , W illis G. (B ) State University of New York, College of Ceramics, Alfred, N. Y. LAW SO N, Louis, Jr. (W ) W est Virginia Pulp & Paper Co. Development Dept., Charleston, S. C. LAW SO N, W . Branch (G) International Minerals & Chemical Corp. Box 369, Erwin, Tenn. LAXTON, Wilbur (G) Hazel-Atlas Glass Co., 126 Market St. Zanesville, Ohio LAYNE, Fred A. (W ) Louthan Mfg. Co. East Liverpool, Ohio LAYTO N, Donald R. (G) R. R. 1, Brockway, Pa. (Brockway Glass Co.) LEA, A. C. United Insulator Co., Ltd. Oakcroft Rd. Chessington, Surrey, England LEAD IN DUSTRIES ASSOCIATION (Robert L. Ziegfeld) 420 Lexington Ave. New York 17, N . Y. L E A N D E R , Karl Johan Langgat, 19, Hoganas, Sweden (Hoganas-Billesholms AB) LEAVENW O RTH , Richard S. 4225 7th Ave., N . E., Seattle 5, Wash. LEAVER, Stanley (R) 1202 Niagara St., Niagara Falls, N. Y. (Carborundum Co.) L E BELL, Rolf Casimir Pargas Kalkbergs Aktiebolag ABO Kakelfabrik Slottsgatan 52, ABO, Finland LEBERKNTGHT, C. E. (G F) Kopp Glass, Inc. Box 8255, Pittsburgh 18, Pa. LEDDY, Robert M. (SI) Box 128. Hammonton, N . J. (Alliance Clay Product Co.) L E E CLAY PRO DUCTS CO., INC. (Martin S. Bowne) Clearfield, Ky. LEE, Harley C. (R F ) Basic Refractories, Inc. 845 Hanna Bldg., Cleveland 15, O hio LEE, James A. (S ) Southern Brick & Tile Mfrs. Assn. 1328 Candler Bldg., Atlanta 3, Ga. LEE, P. William (B I) 205 Elmwood Blvd., York, Pa. (Dentist's Supply Co. of New York) LEECH, L. G. H. & G. Thynne, Ltd. Victoria Tile Works Holtner, Hereford, England LEEDS, Donald H . (I) 2025 Westfield Terr., Bethlehem, Pa. LEES, Arch A. (R ) 411 Avon Dr., Pittsburgh 16, Pa. (Carborundum Co.) LEFFORGE, J. W. (B) Monsanto Chemical Co. Everett Station, Boston 49, Mass. LEFORT, Henry G., Jr. (E l) 411 Fairlawn Dr., Urbana, 111. (University of Illinois) LE HERON, Harold Etablissements Porcher Usines de Revin, Ardennes, France LEIBIG, Edward C. (G ) Corning Glass Works, Corning, N . Y. LEIBSON, J. S. (W I) Locke Dept., General Electric Co. Schenectady 5, N. Y. LEIPOLD, Martin H., Jr. 428 Seventh St., Fairview, N. J. LEISEY, William B. (B ) 615 Elm Ave., Muhlenberg Park Reading, Pa. (Manu-Mine Research & Development Co.) LEITTEN, Carl F. (R ) 50 Hawkins Ave., Hamburg, N . Y. (Electro Refractories & Abrasives Corp.) LELAND, John A. (E ) 469 Arbraznar Ave. Pacific Palisades, Calif. (Douglas Aircraft Co.) LELIVELT, J. W. (E ) Kelvinator Div., American Motors Corp. 1545 Clyde Park Ave., S.W. Grand Rapids 9, Mich. LEMMERMAN, Paul C. (R ) E. I. du Pont de Nemours & Co. Grasselli Chemicals Dept. National City Bank Bldg. Cleveland 14, Ohio LeM UNYON, James S. (E) Tappan Stove Co., 250 Wayne St. Mansfield, Ohio LENCHNER, Theodore (D F ) 5158 Beeler St., Pittsburgh 17, Pa. (Vitro Manufacturing Co.) LE NNO N, John W. (W ) Battelle Memorial Institute 505 King Ave., Columbus, Ohio LENTZ, Clarence J. (R ) Quebec Iron & Titanium Corp. Box 40, Sorel, Que., Canada LEONARD, Jean (M ) 96-24 Corona Ave., Corona 68, N. Y. (Jean Leonard Ceramics) LEOPOLD, Jean H. Leopold & Cie. P faffenhoffen, (Bas-Rin). France LEO-WOLF, A. L. (M ) Carborundum Co., Globar 'Div. Niagara Falls, N. Y. LEPP, Jack M. (S ) 1357 Nicholas PI., Ashland, Ky. (Carlyle Tile Co.) LESAR, Albert R. (R I) 509 Woodlawn, Mexico, Mo. (A. P. Green Fire Brick Co.) LESLIE, Ernest R. (G) Bell Telephone Labs. Murray Hill, N. J. R o ster 45 ). Harold F. (R) I Beechmont Dr. arbora Hills, Mich, reat Lakes Steel Corp.) CR, Ronald H . (R JI) II Garrison Blvd. IF ' JS, Md. km y Chemical Corps) CR, Vf. Ronald (G F) Jerty Glass Co. pulpa, Olda. Matthias malteria e Metallurgies Vcneta" ssano del Grappa, Italy IT , Marc Yves ntre National d'Etudes et cherches Cramiques Avenue Paid Doumer ris 16, France ilGOOD, William C. (G ) 73-- 289th St., Toledo, Ohio ibbey-Owens-Ford Glass Co.) Ormonde S. (G) :rd-A-Ray Corp. Front St., Toledo 5, Ohio ", Ernest M. (B ) tional Bureau o f Standards v. 9.7, Washington 25, D . C. I. (M) L Manufacturing Co. 5 Eighth St. - .land, Chester, Pa. TE. Irving L . (W ) S Comstock Ave., Syracuse 10, N . Y . eneral Electric Corp.) Dorothy (D ) 12 Lincoln Ave., Highland Park, 111. 5, Albert D . (G) mble Glass Co., Vineland, N . J. 3, Charles F . (R ) lunteer Portland Cement Co. x 1190, Knoxville, Tenn. 5. Gordon E . (S I) en-Gery Shale Brick Corp. . J .x ' iWyomissing, Pa. 5. (G) tie Ridge Glass Corp. ngsport, Tenn. i. J. M. (W ) ingdon Potteries, Inc. 1 N . Main St., Abingdon, 111. ), William C. (G) Flats. N . Y. orniny Glass Works) JY-O V K NS-FO RD G LASS CO. orge B. Watkins) 1701 E. Broadway 1-do 5, Ohio ..' TO 'vE, Laurence C. (G ) i '"r strument Co. ' " s St., Rochester 1, N . Y. >., Phillip H . (R) On Tv. ,,ood Lane, Norristown, Pa. vino & Co.) v IT, William H. (M I) Alden Dr., Rahway, N . J. !. ( I ,,nt de Nemours & Co., Ine.) l.-.e- It. (S I ) ' key Clay M fg. Co. ' 1 ittsburg, Kansas rd R. (GF) n Ave., Corning, N. Y . lass Works) ' I. Y . > Alfred, N . Y. ' W. (RI) dim e, Pittsburgh 13, Pa. M. (GJ) Glass Co., Operating Div. Ft., Zanesville, Ohio >ge L. (R) Icllean & Co. irrison Sts. -co, Calif. .. John (EJ) I urst, N. J. : . (E) , Taientum, Pa. Plate Glass Co.) Jo 0(inf)5) LINDQ UIST, C. Alan, Jr. (B I) . 123 Grandview Ave., Conneaut, Ohio (Astatic Corp.) LINDROTH, Stig A. (B) Glass Tech. Lab., General Electric Co. 1133 E. 152nd St., Cleveland 10, Ohio LIN D SA Y , Carey E. (R l) 36 N. Crandon, Niles, Ohio (N iles Fire Brick Co.) LINKHORN, William H . (W ) 428 S. Western, Kokomo, Ind. (American Radiator & Standard Sanitary Corp.) LINTZ, E. H. (W FI) 42 Heiskell Ave., Wheeling, W . Va. (W heeling Tile Co.) LINW OOD. Sidney H . (W ) Stackpole Carbon Co., St. Marys, Pa. LINZ, Arthur (E ) 551 Fifth Ave., N ew York 17, N . Y. (Consultant) LITEN, Alexander F. 838 Carteret Ave., Trenton 8, N . J. LITH IUM CORP. OF AMERICA, INC. (Walter M. Fenton) 2560 Rand Tower Minneapolis 2, Minn. L ITT LET O N , Joseph C. (G ) 231 Dclevan Ave., Corning, N . Y. (Coming Glass Works) LITTLETON, J. T. (Honorary, GF) Coming Glass Works, Coming, N. Y. LIVIN G STO N, Charles Q. (R ) Armstrong Cork Co., Lancaster, Pa. LIVOVICH, Andrew F. (R) 337 N. Virginia Ave., Hobart, Ind. (Universal Atlas Cement Co.) L & L MANUFACTURING CO. (I. Levin) 136 Eighth St. Upland, Chester, Pa. LLOYD, Katherine M. (R) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland, Calif. LO, Wing-Cheuk 157 George St., New Brunswick, N. J. LOBAUGH, Frank E. (RI) 1052 Sherman Ave., Plainfield, N . J. (Universal Atlas Cement Co.) LOCHRIDGE. James F. (E ) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio I.ocke--See General Electric Co. LOGAN CLAY PRODUCTS CO. (Barton A. Hull) Logan, Ohio L O N D E R EE , Joseph W .. Jr. (G ) 3918 Warner Ave., Louisville, Ky. (Corhart Refractories Co.) LONG, Bernard Glaces de Boussois 22, Boulevard Malesherbes Paris 8, France LONG, George R. (E ) Frigidaire Div., General Motors Corp. 300 Taylor St., Dayton 1, Ohio LONG, John V . (G ) Solar Aircraft Co. 2200 Pacific Highway San Diego 12, Calif. LONG, Luther L. (G ) Owens-Coming Fiberglas Corp. Case Ave., Newark, Ohio LONG, Robert (E ) American Porcelain Enamel Co. 1285 Keating Ave. Muskegon 36, Mich. LONG. Robert R. (W ) National Tile & M fg. Co. 1200 E. 26th St., Anderson, Ind. LONG. Russell E. (R I) Brush Beryllium Co. 4301 Perkins Ave., Cleveland 3, Ohio LONGENECKER, Robert J. (MJ) 16 James Rd., Broomall, Pa. (Foote Mineral Co.) LONGFRITZ, Robert K. (R I) Brighton Brick Co. Box 256. New Brighton, Pa. LOXGINO, Ted E. (S) Henderson Clay Products Henderson, Texas LONGW ELL, Burton (E ) Republic Steel Corp. 1423 Republic Bldg., Cleveland 1, Ohio LOREY, Frederick D . (GI) 41 Meadow Brook Apt., Corning, N. Y . (Corning Glass Works) LOREY, G. Edwin Ceramic Dept., Rutgers University New Brunswick, N . J. LOUDEN, R. H. (W I) McGean Chemical Co. Midland Bldg., 101 Prospect Ave. N . W . Cleveland 15, Ohio LOUGHRIDGE, Frederick A. (G) 52 Norwood Ave., Manchester, Mass. (Sylvania Electric Products, Inc.) LOUTHAN M ANUFACTURING CO. (C. W . Gerster) 2000 Harvey Ave. East Liverpool, Ohio LOVE, L. G. (G ) National Lime & Stone Co. First National Bldg., Findlay, Ohio LOVELAND, Edward W . (G) 504 79th St., North Bergen, N . J. (Techniplast, Inc.) LQVENBACH, J. Glaceries de Saint Roch S. A. 50, rue du Luxembourg Brussels, Belgium LOWE. Earl C. (S I ) 45 S. Culver St., Logan, Ohio (Straitsville Brick Co.) LOWE. Edwin C. (R ) 2X12 Coholan St. Niagara Falls, Ont., Canada (Norton Co.) LOWE, George K. (R I) Charles Taylor Sons Co. Heights-Rockefeller Bldg., Rm. 210 Mayfield at Lee, Cleveland 18, Ohio LOWER, Clarence G. (S ) New Bethlehem Tile Co. 311 Lafayette St., New Bethlehem, Pa. LOWER, Lloyd C. (S ) 227 Washington St. New Bethlehem, Pa. (New Bethlehem Tile Co.) LUBING. Irving (B ) 137 Glen St., Yellow Springs, Ohio (Wright-Patterson AFB) LUCAS. Joseph M. (W ) 1431 Broad Blvd. Cuyahoga Falls, Ohio (U . S. Stoneware Co.) LUCIDO, Peter J. 1518 Central, Lafayette, Ind. LUCKETT, Joseph S. Texas Western College Box 108, El Paso, Texas LUD VIG SEN, C. F. Den Kongelige Porcelainsfabrik & Fajancefabriken Aluminia A /S Copenhagen F.-45 Smallegade, Denmark LUDWIG. David W . (GI) 107 Penn View Dr., Monroeville, Pa. . (Pittsburgh Plate Glass Co.) LUDW IG, Urban W . (G) 498 Lake Rd., Webster, N . Y. (Bausch & Lomb Optical Co.) LU E D ER S, Roland (M ) 3241 Bradford Rd. Cleveland Heights 18, Ohio (Ferro Corp.) LUHRS, Millen E. (G) Ltbbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo, Ohio LUKS, Daniel W . (W I) Star Porcelain Co. Muirhead Ave., Trenton 9, N . J. LULL, Stanley E. (R ) 6 Oberlin St., Worcester 10, Mass. (Bay State Abrasive Products Co.) LUNAR, Thomas E. (W I) Globe Union, Inc. 900 E. Keefe, Milwaukee 1, Wise. LUND, H. Howard (S ) 44 S. Elmwood Ave., Palatine, III. (Armour Research Foundation) R oster 47 , L. Howard (S J ) 00 Livingston St., Evanston, 111. lentral Commercial Co.) , Melvin S. (W ) 6 F State St., Alliance, Ohio m n Limoges China Corp.) ', . J. .1 Emerson Ave., Salt Lake City, Utah ER, Gerald H . (R ) >rton Co., S905 Pacific Blvd. mtington Park, Calif. ON, X . W. (W ) 4 Herndon Dr., Evansville, Ind. Irown Sanitary Pottery, Inc.) , Aaron K. (GF) Cumberland Rd. est Hartford 7, Conn. lartford-Empire Co., iv. Emhart M fg. Co.) H, Eugene D. (W ) liversity of Illinois tpt. of Ceramic Engineering 4 Ceramics Bldg., Urbana, 111. H, James F. (R) ittelle Memorial Institute 5 King Ave., Columbus 1, Ohio H, John F. (W ) 19 N . Leavitt, Chicago, 111. .indberg Engineering Co.) AVAGE, Walter F . (G ) ;0 Arnold Ave., Port Allegany, P. 'ittsburgh Corning Corp.) ', John B, (S ) Circle Dr., Malvern, Ark. vcme Brick Co.) , Kenneth C. (G F) 7 E. Washington St., Dunkirk, Ind. all Brothers Co.) S, Clifford T. (W ) 28 Shenandoah Ave., Dallas 5, Texas Columbine T ile M fg. Co.) S, S. C. (M ) rei' Kaolin Co. ry ] hh, Ga. E -, .'A. (B I) OS N. Sheffield, Milwaukee 11, Wise. \llen-Bradlcy Co.) E, W . O. (G) ttsburgh Plate Glass Co. search Lab., Creighton, Pa. LE, Frobisher T. (W ) :31 Findley Ave., Zanesville, Ohio Josaic Tile Co.) Me 0 0 , Don P. (W ) ; Viewpoint Ln., Levittown, Pa. M. Huber Corp.) LISTER, Christopher (G I) w 281, Clarksburg, W . Va. Pittsburgh Plate Glass Co.) PINE. Kenneth B. (G) '01 Union Ave., Brackenridge, Pa. Pittsburgh Plate Glass Co.) KILL, James I. (W ) 11 King St., W . Wgston, Ont., Canada LEY, James W . (G) !*J Sherwood Rd., Toledo, Ohio '"bey-Owens-Ford Glass Co.) E, p. B. (E ) Jh-elain Metals Corp. Sv.S. 13th St.. Louisville 10, Ky. P E Y , John W . (S F ) Kf N. Falkland Lane TV Spring, Md. Vaonal Bureau of Standards) SjNEY, William C. (D ) Eastbrook Rd., New Castle, Pa. TH"'"'1 China, Inc.) S * f lames W . (M) {PL Mines, Parliament Bldgs. B. C,, Canada gJtt-ESS, Lyon (G) jJP^r-Simplex Korea, Inc. '&*' Putnam Ave., Greenwich, Conn. gtiD . M. (W l) ^jjPercelain Co., Akron 14, Ohio ?o. 10 (1955) McCANN, Sidney VV. (E l) Pfaudler Co. 1000 West Ave., Rochester 3, N. Y. McCARTT, Kenneth C. (W ) 1408 Delaware Ave., New Castle, Pa. (Universal-Rundle Corp.) McCLAVE, James W . (S I) Box 67, Toronto, Ohio (Peerless Clay Corp.) McCl e l l a n d , Roland h . (W i) Globe-Union Inc. 900 E. Keefe Ave., Milwaukee, Wise. McCl u r e , ciifto n m . 241S Edge-wood Ave., Anderson, S. C. McCLURE, Howard C. (R) 1808 Hutchins St., Portsmouth, Ohio (Davis Fire Brick Co.) McCLURG, John (E ) Oglebay Norton & Co. 1200 Hanna Bldg. Cleveland IS, Ohio McCOLLOM, Perry C. (R I) American Refractories & Crucible Co. North Haven, Conn. McCo n n e l l , g . f . ( w ) Mosaic Tile Co., Zanesville, Ohio McCORMICK, John M. (G) 2356 Cheltenham Rd., Toledo 6, Ohio (Owens-Illinois) McCORMICK, Stewart W. (I) University of Washington School of Mineral Engineering Seattle, Wash. McCOY, NELSO N, POTTERY CO. Roseville, Ohio McCOY, William (M ) 1219 24th St., N.E., Canton 4, Ohio (American Encaustic Tiling Co.) McCREERY, George L. (W ) 393 Highland Ave., Wadsworth, Ohio (Ohio Brass Co.) McCREIGHT, D. O. (R) 15 Willow Terrace Dr., R.R. 2, Box 290 Library, Pa. (Harbison-Walker Refractories Co.) McCREIGHT. Louis R . (R) R.R. 1. 67 Hillandale Dr. Ballston Lake, N. Y. (General Electric Co.) McDANEL, Donald W. (W ) McDanel Refractory Porcelain Co. 510 Ninth Ave., Beaver Falls, Pa. McDANEL, Melvin W. (W ) R.R. 2, Eastvale Rd. Beaver Falls, Pa. (McDanel Refractory Porcelain Co.) McD a n i e l , l . l . (R> Phelps Dodge Corp. Morenci Branch, Morenci, Ariz. McDERMOTT, James J,, Jr. (G) 136 William St., New York 38, N . Y. McD o n a l d , e . f . ( e i ) Ingram-Richardson Mfg. Co. Beaver Falls, Pa. MCDONALD, Howard A. (R) E. 23 Rich, Spokane 22, Wash. (Kaiser Aluminum & Chemical Co.) McDOUGAL, Taine G. (W FI) 1117 South Dr., Flint 3, Mich, and Ha'penny House Somerset Bridge, Bermuda McDOWALL, Ian C. New Zealand Pottery & Ceramic Research Assn., Inc. Private Bag, Lower Hutt, New Zealand McD o w e l l , j . Spotts ( r f > 4716 Bayard St., Pittsburgh 13, Pa. (Harbison-Walker Refractories Co.) McDOWELL, Samuel J. (B F I) 52 Elm Ave., Metuchen, N . J. , (American Lava Corp.) j McELROY, R. H. (M I) International Clay Machinery Co. 1145 Bolander Ave., Dayton 1, Ohio McEVOY, Robert J. (RI) 2234 Berdan, Toledo 13, Ohio ( Owens-Coming Fiberglas Co.) McF a r l a n d , James e . ( e j 14025 Greenbay Ave., Chicago 33, 111. (Inland Steel Co.) McGEAN, Ralph L. (E ) Midland Bldg., 101 Prospect Ave., N.W. Cleveland IS, Ohio (McGean Chemical Co.) McGEE, Thomas D. (RI) Research Laboratory A. P. Green Fire Brick Co. Mexico, Mo. McGII-L, William M. (B) Virginia Division of Geology Box 3667, University Station Charlottesville, Va. McGi n n i s , r . a . ( w ) American Lava Corp. Cherokee Blvd. & Mfgrs. Rd. Chattanooga 5, Tcnn. McGOHAN, G. William (E ) Armco Steel Corp., Middletown, Ohio McGOLPIN, William C. (S ) Rm. 403, 57 Bioor St., W. Toronto 5, Ont., Canada McGRAW, Delford A. (G) 4101 Garden Park Dr., Toledo 13, Ohio (Owens-Illinois) M cHOSE, L. H., INC. (M . M. McHose, Jr.) Box 47 Perth Amboy, N. J. McHOSE, M. M , Jr. (M) L. H. McHose, Inc. Box 47, Perth Amboy, N . J. McINTOSH, Harold W. (G) American Window Glass Co. 9 W. Park Way, Pittsburgh 12, Pa. McINTOSH, William A. (S) West Virginia Pulp & Paper Co. Polychemicals Div. Charleston, S. C. M cINTYRE, G. H. (E F I) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio McKAIG, W . Wallace (R) Cumberland Steel Co.. Cumberland, Md. McKEAND, Irvin J. (W ) Minneapolis-Honeywell Regulator Co. Research Center 500 Washington Ave. S. Hopkins, Minn. McKEE, William O., Jr. (B) 19 IQ Wink Court, Owensboro, Ky. (General Electric Co.) McKEEN, Richard D. (M I) Box 625, Haverhill, Mass. (Western Electric Co.) McKEOWN, J. Duncan (R) Box 137 Burnet Woods Station Cincinnati 20, Ohio (Carborundum Co.) McKEOWN, Thomas H. (M) Box 31, Metuchen, N. J. (E . I. du Pont de Nemours & Co., Inc.) McKIBBEN, Burt H. (E) Niles Rolling Mill Div., Sharon Steel Corp., Niles, Ohio McKINLEY, Theodore D. (B) E. I. du Pont de Nemours & Co., Inc. Newport, Del. M cK INNIE, J. R. (R) Ideal Chemical Products, Inc. 3813 Hoke Ave., Culver City, Calif. M cK INNIS, Charles L. (G I) Owens-Corning Fiberglas Corp. Research & Development Labs. Newark, Ohio McLACHLAN, Eugene K. (R) 2280 Sunshine, Johnstown. Pa. (Bethlehem Steel Co.) McLAIN FIRE BRICK DIV., H . K. P O R TER CO., INC. (Lawson E. Masonl Clark Ave., WeUsville, Ohio McLANE, James P. (M) Diamond Pottery Corp. 50-56 China St., Crooksville. Ohio McLAREN, Henry D. (E) Ferro Enamels (Canada) Ltd. Box 37, Oakville, Ont., Canada R oster 49 AREN, John (M) Broadview Circle, East Liverpool, Ohio (Sales Representative) AUGHLIN, John L. (E) 364 S . Craig PI., Lombard, 11!. (Allied Porccnell Inc.) AT' 'LIN, Joseph K. (W I) Hi / Porcelain, Inc. Hickory, N . C. AUGHLIN. William H . (R ) Alscy Brick & T ile Co., Alsey, 111. 1AHON. John F . (X F I) Alfred, N .-Y . (State University of New York College of Ceramics, at Alfred Univ.) iA IIO N , John F.. Jr. (GJ) Apt. H -4, Oalcwood Gardens Apts. Lansdale, Pa. IASTER, Harold A. (G ) Permaglass, Inc., Box 195, Sta. A. Toledo 5, Ohio iU L L E N , John C. (R) 93 5 Rivershore Dr. N -?ara Falls. N . Y . (( horundum Co.) IU DIE, Howard F. (BF) N. iohal Bureau of Standards Washington 25, D . C. lU 'iTR Y , Carl H. (I) 16S S. Main St., W ellsville, N . Y. ,'A ' ' ARA, E . P . (W F I) 7.' 'itchie A ve., Cincinnati 15, Ohio (C. bridge T ile M fg. Co.) JAM ARA, Edward P ., Jr. Bo* 347, Alfred, N . Y . JAV TITO N , Ronald R . (B ) Cot si Technical Library 0 lidated Mining & Smelting Ct. of nada. Ltd., Trail. B. C., Canada ' i.Y . Clyde. Jr. 4 f'reenwood St., Canisteo, N . Y . 3' RIE, Malcolm C. (B ) 1 .. Nittany Ave., State College, Pa. (I wlvania State University) JIT )E. Frank H . (R ) Me' -n Institute, 4400 Fifth Ave. Pit irgh. Pa. JO' Glenn L . (S ) F 'rrsey Zinc Sales Co.. Inc. *>' itional City Bank Bldg. (" id 14, Ohio " RT, G. Don / . ITealey, Apt. 4 1 paigu, 111. V T. N. (XFI) I -Icwrn ! Court. Tuscaloosa, Ala. . Bureau of Mines) W OR II. G. (R ) -< risty Co. y . Porter Co. Inc. 'mapton Ave., St. Louis 10, Mo. * V S. Robert J. (E l) r in. (Elyria D iv.) Klyria, Ohio M * " F. William M. (G ) in St., Somerville, N. J. " iville Research Laboratory) ic James E. (R ) rick Co., Latrobe, Pa. * R. W . (W I) 1ndustrics, Inc. SI. ft Prospect St. mi. la. V V. . (M ) i ru >n Co., Globar Div. f ra Is, N . Y. v ' onald J. (W ) rd, N . Y. I-, ator Co., Inc.) "dward (E ) 5: namel Institute i : N. W. f 5, D. C. 10 (1955) MACKENZIE, James United Steel Companies Ltd. Research & Development Dept. Swinden House, Moorgatc Rotherham, England M acKENZIE, James T. (R) Box 2603, Birmingham 2, Ala. (American Cast Iron Pipe Co.) MACKL1N CO. (Richard O. Lane) 2917 Wildwood Ave., Jackson, Mich. MacLEOD, John United Fireclay Products, Ltd. 140 W . George St. Glasgow, C. 2., Scotland M acP IlE R SO N , Charles R. (G) Owens-Coming Fiberglas Corp. Box 326, Kansas City, Kans. MacRAE, John (G) Fiberglas Canada Ltd. Box 309, Guelph, Ont., Canada MAC ZURA, George (RJ) 1913 Magdalena Ave. East St. Louis, III. (Alcoa Research Laboratories) M A D D E N , Robert C. (R ) 315 Pim St. Sault Ste. Marie, Ont., Canada (Algoma Steel Corp., Ltd.) MADDOCK, A. M. (W) R. R., Washington Crossing, N. J. M ADSEN, Leif Egil Box 4208, Sandakervn 109/111 Oslo, Norway (A /S Den Norske Slipesltivefabr.) M AGAZINE. Arnold L. (G) CBS-Hytron Corp. 100 Endicott St., Danvers, Mass. MAGID, H. S. (WI) American Radiator & Standard Sanitary Corp., Box 907 Trenton 5, N . J. MAGNUSON, V. E. (M) Western Feldspar Milling Co. Box 671, Salida, Colo. M AGUIRE. Edward A.. Jr. 1335 E . Price St., Philadelphia 38, Pa. M AGUIRE, Samuel G .,`jr. (B) United Clay Mines Corp. 101 Oakland St., Trenton 6, N . J. M AHESHW ARY, Ved P. Govt. Central Pottery Agency Sonepat. Punjab, India MAHhER, Lois W . (D ) 4535 Harding Blvd. Baton Rouge 7, La. (Southwestern Louisiana Institute) M AHONEY, Frank B. (E) Richmond Radiator Co. Box 111, Metucben, N. J. MAI OR, Nelson S. Ccramica Sao Caetano S. A. Caixa Postal 278, Sao Paulo, Brazil M AJESK E, Joseph (G) T. C. Wheaton Co., Millville, N . MALCOLM, Richard B. (E ) O. Homrael Co. Box 475, Pittsburgh 30, Pa. MALKIN, W . R. (M) B. F . Drakcnfeld & Co., Inc. Box 267, East Liverpool, Ohio MALM, Arthur T. (RI) 233 Beverly Rd., Worcester 5, Mass. M ALVERN BRICK & TILE CO. (George B. Eyerly) Box 415, Malvern, Ark. M A N D E L, Charles J. (W I) W illette Corp. of New Jersey Codwise Ave. St Reed St. New Brunswick, N . J. M ANDLE, Richard M. (G) Rare Earths, Inc. Box 488, Pompton Plains, N. J. M A N N , George H . (G) Lake Salubria, Bath, N. Y. (Corning Glass Works) M ANNING, R. Douglas (D ) Harker Pottery- Co. East Liverpool, Ohio MANOUSEK, Miloslav Jatecni 23, Praha V II, Czechoslovakia MANRING, Jack C. (EJI) R.R. I, South Charleston, Ohio (W estinghouse Electric Corp.) MANRING, William H . (G) Calumite Co. Box 151, Hamilton, Ohio M ANSFIELD SANITARY POTTERY, IN C . (Perry E. Draper) Perrysvilie, 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 MARCOWKA, Chester A. (E ) 3331 S. 58th Court, Cicero 50. 111. (Armour Research Foundation, Illinois Inst, of Technology) MARCUS, Leon (I) 519-B Tulip Rd., State College, Fa. MARGOLIS. David (W ) 39 Glenwood Ave., N ew Rochelle, N . Y. (Fish-Schurman Corp.) MARK, Stanley D,, Jr. (R) 1592 Love Rd., Grand Island, N. Y. (Carborundum Co.) MARLETT, Charles J. (M ) One Lloyd Ave., Latrobe, Pa. MARQUIS, John E. (W ) Pemco Corp., Res. & D ev. Lab. 2552 Greenmount Ave. Baltimore 18, Md. M ARSHALL, Claude L.- 119 Lake Ave., Middletown, N . Y. MARSHALL, Darwin (R ) Electro Metallurgical Co. Metals Research Labs. Box 580, Niagara Falls, N . Y. MARSHALL, Nissim J. 2204 Franklin, Apt. 4 Seattle, W ash. MARSHALL, Paul A , (G) 1201 Cherry St., Brockway, Pa. (Brockway Glass Co., Inc.) MARTIN, Albert R .' (S ) 2303 37th St., Snyder, Texas (Martin Construction Co.) MARTIN, Francis W . (G) 101 Hornby Dr., Painted Post, N . Y. (Coming Glass W orks) MARTIN, Frank B. (R ) E. J. Lavino & Co. Box 29, Norristown, Pa. MARTIN, H. C. (R) Carborundum Co. Buffalo Ave., Niagara Falls, N . Y. MARTIN, James K. (M ) 1068 Helen Ave., Lancaster, Pa. J. (Posey Iron Works, Inc.) MARTIN, John R., Jr. (M ) Monongahela Power Co. 920 Charles St., Wellsburg, W. Va. MARTIN, Leonard A. (W ) Martin Ceramic Supply Co. 8901 Rainier Ave., Seattle 8, Wash. M ARTIN. Ralph H . (W I) Vernon Kilns 2310 E. 52nd, Los Angeles 58, Calif. M ARTIN, W esley G. (E F ) 6054 N . Kent Ave. Milwaukee 17, W ise. (A. O. Smith Corp.) MARTINO, Paul D . (SJ) Cannelton Sewer Pipe Co. Cannelton, Ind. M ARTINS, Renato de Siqueira Ccramica Sao Caetano Caixa Postal 278 Sao Paulo, Brazil MARTZ, Joseph A. (R ) 535 Riverside Ave., W ellsvitle, Ohio (McLain Fire Brick Co., Div. of H . K . Porter Co., Inc.) R o ster 51 xRWAHA, Kidar N. - Barn & Co. Ltd. Jabalpur Workk, Box 13 Jabalpur 1, India ARX, Le Roy J. (S ) Denver Terra Cotta Co. 135 Tejon St., Denver 23, Colo. Ma r y l a n d g l a s s c o r p . (L. C. Roche) 2147 Wicomico St. Baltimore 30, Md. ASKILL, William Webb Corbett, Ltd. J < Coalbournhill Glass Works 19 r Stourbridge, Worcester, England [ASON CITY BRICK & T IL E CO. -- (C. F . Garland) Mason City, la. rti [ASON, Lawson E. (R) McLain Fire Brick Div., H. K. Porter Co., Inc. Clark Ave., Wellsville, Ohio SSENGALE, Gordon B. (R I) 553 Audubon Ave., Pittsburgh 34, Pa. (Harbison-Walker Refractories Co.) SSON, R. Porzellanfabrik Langenthal A. G. Langenthal, Switzerland A I. R. F. MATARAZZO (M. Mazzetti) Brazil Export Corp. SO Broadway, New York 4, N . Y . TCHULAT, John G. (R) Buffalo Rd., R.R. 2 East Aurora, N . Y. (Electro Refractories & Abrasives Corp.) jATEJCZYK, John F . (E ) 7506 Trevanion Ave., Pittsburgh 18, Pa. 3 : ( 0 . Hommel Co.) t 1ATERIALI REFRATTARI SOC, P.AZIONI (J. Charles Mathon) Via Elia, Lombardini 13 Milano 744, Italy iATHER, Mrs. Katharine (B) Waterways Experiment Sta. Drawer 2131, Jackson, Miss. THIASEN, 0 . E. (S) Federal Seaboard Terra Cotta Corp. Box 301, Perth Amboy, N. J. TH IESO N, George W . <G) ii 2253 Castlewood Dr., Toledo 13, Ohio (Kimble Glass Co.) TH IESO N , Roblin M. (R ) Aluminium Limited Sales, Inc. 630 Fifth Ave., New York 20, N. Y. IgJlATHIEU, Louis A. Parra Mantois, 11 Chemin de Ronde -<V. Le Vesinet (S&O) France s;#A T H O N , Charles Materiali Refrattari Soc. p.Azioni Via Elia Lombardini 13 Milano 744, Italy I^IA T H O N , J. Charles v'''l Materiali Refrattari Soc. p.Azioni Via Elia Lombardini 13 2 Milano 744, Italy JiATSON, Frederick R. (GI) 4 244 S. Burrowes St., State College, Pa. 1 (Pennsylvania State University) iATTESON, Gilbert D. (W ) Engineering Library Scintilla Div., Bendix Aviation Corp. Sidney. N . Y. TTHEW S, L..G. (E) American Smelting & Refining Co. 120 Broadway, New York 5, N . Y . VTTISON, William F., Jr. (GI) R.R. 3, Lawson Dr., Madison, Conn. (L'lbbey-Owens-Ford Glass Co.) U, K. T. (S) Gaspro, Box 2454, Honolulu, Hawaii SfAUPIN, Addison (R I) 721 Yale Ave., Terrace Park, Ohio (Charles Taylor Sons Co.) ,,MJRACH, H. Deutsche Glastechnische Gesellschaft Jntermainkai 12 Frankfurt A.M., Germany URER. James A. (E ) 5519 N. Lake Dr., Milwaukee 11, Wise. l. 34, No. 10 (1955) MAURER, Robert D . (G) Corning Glass Works, Corning, N . Y . MAUSER, H. W. . Spoorsingel 68, Delft, Holland (Royal Delftware Manufactory) MAVOR, Wilfrid (E) Ferro Enamels (Canada) Ltd. Oakville, Ont., Canada MAXSON, Elwyn L. (M) 1208 Isabel St., Burbank, Calif. MAXWELL, Laurel H. (B ) 3518 Perry Ave., Kensington, Md. (National Bureau of Standards) MAY, L. F. (R) Standard Ultramarine & Color Co. Huntington 18, W. Va. MAYER, Walter S. (W ) Mayer China Co. Box 561, Beaver Falls, Pa. MAYFIELD, Manville J. (W I) 722 Curve St., Chattanooga 5, Tenn. (American Lava Corp.) MAYNARD, Fred A. (M ) 545 E. 250th, Euclid,. Ohio (Harshaw Chemical Co.) MAYNARD, Frederick H. (G) Corning Glass Works 1 Jackson St., Wellsboro, Pa. MAYS, George A. (S) Niles, Calif. (California Pottery Co.) MAZZETTI, M. (W ) S /A I. R. F. Matarazzo Brazil Export Corp. 50 Broadway, New York 4, N. Y. M EDERT, Warren C. (G) 5320 Melvin Dr., Toledo 14, Ohio (Owens-Illinois) MEEKA, Edward (SI) Metropolitan Brick, Inc. Box 27, East Palestine, Ohio MEID, William J. (R ) 203 Elm St., Glenview, 111. (Lindberg Engineering Co.) ME1NKEN, Robert H . (B) 828 W . Fifth St., Plainfield, N . J. (Bell Telephone Labs.) M EIRESO NNE, Arthur C. (G) 700 Village Dr., Columbus 14, Ohio (Kimble Glass Co.) MEJIA, Lorenzo (M ) . Colombia Brewers Industries, Inc. 80 Broad St., New York 4, N . Y. MELOY, C. L. (R I) Res. Dept., Rra. A406 Bethlehem Steel Co., Bethlehem, Pa. MENG, Edwin R. (R ) National Carbon Co. Box 6087, Cleveland 1, Ohio MENGSHOL. Clarence O. (E ) American Radiator & Standard Sanitary Corp. 1089 Essex St., Richmond, Calif. MERCER, James W . 3246 Lambeth Circle, Doraville, Ga. MERCK, Walter J. (R I) 25 Addison Dr., Short Hills, N. J. (M. W . Kellogg Co.) MEREDITH, Neil F. (RI) Box 281G, R.R. 2, Tiffin, Ohio (Basie Refractories, Inc.) M ERIW ETHER, B[ Corbin (W ) Dcena Products Co., Arlington, Ky. MERKEL, W. H . (S) Huber-Warco Co. American Clay Machinery Div. Bucyrus, Ohio MERLINI, Ing. Francesco Colonnata, Florence, Italy MERRIAM, Jack G. (R I) 727 N. Wildwood, Mundelein, 111. (Titanium Alloy Mfg. Div., National Lead Co.) MERRIMAN, Seth G. (G) 2722 Lincolnshire Blvd., Toledo 6. Ohio (Owens-Illinois, Kimble Div.) MERRT T , G rence W . (W FI) Bor. 464, Alfred, N . Y . (S e U n! ersity of New York Ci ge of Ceramics, at Alfred Univ.) MERI TT, Lester M. (W I) 65-i Wilson Ave., Columbus 5, Ohio ( MER h '-(striai Commission of Ohio) 1 . E. B.. Jr., (S I) y Bros. Brick & Tile Co. 4 ' Masonic Bldg., Augusta, Ga. MERRY, W. H. (E) RU'Umond Radiator Co., Monaca, Pa. MER V iN , By: on W. (W ) 1 .irkway Rd., R. R. 2 Tv .-! Live- ool, Ohio ( i i . 1 Cld a Co.) M E R 7. Kenneth M. 2. Upson Ln., New Brunswick, N. J. MESS ' ER, laverne A. (G I) J vhane Co., Newark, Ohio M E S ! -" R , P ul DuBois, III 80S N. W hington St., Rome, N. Y. M ETAL & Ti ERMIT CORP. (. corge C Betz) 100 E, 42nd St. New York 17, N. Y. METZ, G. F . (M) Hillside P i., Farquhar Estates York, Pa. (Hardinge Co., Inc.) METZGER, A J. (R I) Dept, of C ramie Engineering Virginia 1 !ytechnic Institute Blacksburg, Va. METZGER, 11. C. (M ) E. E. Zb icrman Co. 1704 Kcc. n Bldg., Pittsburgh 22, Pa. MEULI, William P. * 4509 19th . .ve., N . E . Seattle 5, Y/ash. MEXICO REFRACTORIES CO. (C. A. Smith) Better Refractories Bldg. Mexico, Mo. MEYER, G. Roiiert (G) 313 Daniels St., Toledo, Ohio {l.ibbey-Ow ns-Ford Glass Co.) MEYER, Georg, W . (G) Gienshaw Class Co., Inc. Glonshaw, Ea. MEYER, L. S. (S ) . Hydraulic 1 less Brick Co. 705 Olive St.; St. Louis 1, Mo. MEYER, William W. (W ) R. R. 1, Box 632, Annandale, Va. (U . S. Tarit! Commission) MEYERHOFER, E. A. Meyerhofer & Co., Forchstrasse 2 Zurich 32, Switzerland MEYKR-SCHOLER, Hans Call Spittelerstrasse 1 Liestal, Switzerland (Tonwerk 1 lusen AG) MEYSEL, John J. Refracton Ltd. Zurich 2 Genferst rasse, Zurich, Switzerland MICHAEL, Frank L. ( E l) 319 Norbourne Blvd., St. Matthews Louisville 7, Ky. (General Electric Co.) MICHAEL, Harold J. (E ) . Cia. Industrial del Norte Apartado 226, Saltillo, Coah., Mexico MICHEL, Howard (E ) Porcelain Enamel, Inc. 80 S. Dover, Denver IS, Colo. MICHEL, S. Etablissements G. Devineau 26, rue Lafayette, Paris 9B, France MICHELOTTI, Joseph E. (E l) 164 E. Essex Ave., Lansdowne, Pa, (Vitro Mfg. Corp.) M ICHENER, John William (G) Research Laboratory Owens-Coming Fiberglas Corp. Newark, Ohio MICKWITZ, Alexander von (R ) 701 Main St., Latrobe, Pa. (StupakofF Ceramic & Mfg. Div., Carborundum Co.) Roster 53 jPDLESW ARTH, Earl T. (G) 1501 Center Ave., New Kensington, Pa. (Pittsburgh Plate Glass Co.) MIDDLETON, George J. (W ) 328 Fifth St., Manhattan Beach, Calif. (L . H . Butcher Co.) jjlDGETTE, Willard B. (M ) Wagle-Picher Co., Pigment Div. |1 Oliver Bldg., Pittsburgh 22. Pa. j,. / Thomas M. 40 West St., Homell, N. Y. jll.A N l, Helio iio>. 327, Alfred, N . Y. |(It.T)\V O FF , Ben (G) lent (Hass Works, Inc. MILLER, William A . (R ) Carborundum Co., Falconer, N. Y. MILLER, William A. 306 E. Madison St., Gibsonburg, Ohio MILLI CAN, Kenneth L. (R ) Aluminum Co. of America 3300 Missouri Ave., East St. Louis, 111. M ILLIGAN, Chester E. (R ) Electro Refractories & Abrasives Corp. 4814 Loma Vista Ave. Los Angeles, Calif. MILLIGAN, Lowell H. (B ) Norton Company, One New Bond St. Worcester 6, Mass. MILLIKEN, Edward C. (SI) MOFFAT, John W ., Jr. (R ) Babcock & Wilcox Co* 2730 Koppers Bldg., Pittsburgh 19, Pa. M OFFETT. Robert A. (R I) North American Refractories Co. 1012 National City E. 6th Bldg. Cleveland 14, Ohio M OHANTY, Gajendra Nath (JI) Indien-Gemeinschaft Krupp-Demag G.M.B.H. Duisberg, W est Germany MHL, Helrauth (W ) Fabrics de Loza "La Favorita" S.A. Palma Norte 308, Despacho 312 Mexico, D. F. 35-25 126th St. 444 W . North Ave. MOHLER, Neal F. (SI) Richmond H ill 18, N . Y. East Palestine, Ohio Champion Brick Co. jll.LAU, N . S . C. (N atco Corp.) 7600 Pulaski Highway, Baltimore 6, Md. Frii Factory Radiation M ILLIKEN, Frank H. (S ) MOHR, William C. (W I) Group Sales Ltd., Grappenhal Works Bowerston Shale Co., Bowerston, Ohio Shcnango China, Inc., New Castle, Pa. War' ington. Lanes., England M ILLIKEN, William M. M OHUN, William A. (R ) jfii i f , n . L . (W ) Cleveland Museum of Art General Abrasive Co., Inc. ;hina, Inc., Sebring, Ohio Cleveland 6, Ohio - 2000 College Ave., Niagara Falls, N. Y. ill! 'oyd C. ( S ) M ILLIKEN, William U . MOLER PRODUCTS, LTD. ''i|uipnient Co. laycraft Co., Shawnee, Ohio Hythe Works 6, Salisbury, N . C. MI LI.M AN. Nathan (M ) Colchester, Essex, England I Ll L. R. (W ) J. M. Huber Corp., Huber, Ga. M O LINA, Joao Jemandes Gimenes i ton Porcelain Co. MILLS, G. Alexander (B ) Ceramics Sanitaria Porcelit, S.A. w St., Washington, N . J. Houdry Process Corp., Box 427 Rua Itapura 626, Sao Paulo, Brazil II. .1 R, Fred M. (R ) Marcus Hook, Pa. MLLER, J. Aall ''hr Brynwood, Apt. A-24 MILLS, R. Gerald (BJ) Porsgrunds Porselaensfabrik nnewood, Pa. General Electric Co. Porsgrund, Norway neral Refractories Co.) Commonwealth Edison Project MONACK, A. J. (G) R, F ie d W . (R ) 2155 S . First St., San Jose, Calif. Box 305, Rutherford, N . J. klin Manor, 114 Franklin S t . 8, Apt. P-2, Morristown, N. J. M ILTO N BRICK CO., LT D . (D . T. Green) Box 554 (Consultant) MONAGLE, William T. (R) 'orundum Co.) . Grant E. (E l) Milton, Ont., Canada M INER, Reginald R. (R ),, _______.... Lloyd Ave., Stanhope, N . J. (Reaction Motors, Inc.) Corp., 4150 E. 56th St. 412 W . Chestnut Ave., Metuchen, N. J. M O NETA, Fausto rd:*nd 5, 'Ohio (Carborundum Co.) Via Mambretti 9, Milano, Italy . Harold (E ) 5 N . Talmrm Ave., Chicago 45, 111. unit Mfg. Co.) M INK, John D. (G) R. R. 2, Dunkirk, Ind. (Armstrong Cork Co.) (D itta Giuseppe Moneta). MONG, Lewis E. (R) 8506 Loughborough FI. R, Harold 1). (M ) Circle Dr,, Flandome Manor T Island, N . Y . F. Drakenicld & Co., Inc.) R, H enry E. (R ) Ten 'Vheel & M fg. Co. W. Monroe St., Chicago 7. III. M IN N IC K , L. John (R ) Chevy Chase 15, Md. 306 Boyer Rd., Cheltenham, Pa. (National Bureau of Standards) (G. & W . H. Corson) MONINGER, Richard E . (W ) M IN SH A LL, John B. (R ) Harding Ave., East Liverpool, Ohio K aiser Aluminum & Chemical Sales, Inc. (W ellsville China Co.) 3 Gateway Center, Pittsburgh 22, Pa. M ONKS, J. R. (G) M IN TO N . G. Z. (G I) 4714 Harbord Dr., Toledo 13, Ohio t, H"ward L. (R I) ey "ens- i'ord Glass Co. 1 P roadway, Toledo 5, Ohio R. J-.-t.cs L. (R ) P- h St,, Park Forest, 111. rt" Co.) , J .n B. (M I) 1 P . Lewiston, N. Y. ">' ' Alloy M fg. Div., " i Lead Co.) n W. (W ) l e R fractories Co. C 'e, P i. R, e 11ith '. ( istalerias de Chile S. A. Chi>. 11 , lisc. Tr. wo d Ave., South Bend, Ind. . ( I) ret ies Co. Oa! Hill, Ohio 1 . icrt V. (G F) t.- 11 PI le Glass Co. .e tew a y enter, Pittsburgh 22, Pa. ER, lu sse ' (W I) 51, E. Rock' d St. `hilad p lia ), Pa. Frai ' senal) ER . V. . W) ivr ers Ltd. '.2 Ave. N. aiv , ., Canada V . G) a- .i hem Chrmical Corp. ne tew 'enter, Pittsburgh 22, Pa. ER, V^inc P. (W ) -liller Poi Eng. Co. .100 llm it., Pittsburgh 18, Pa. Pittsburgh Plate Glass Co. Research Lab., Creighton, Pa. M ISSBACH , George E. (M ) Morehouse Industries 707 Henry Grady Bldg., Atlanta, Ga. M ISSISSIPPI GLASS CO. (Charles J. Youngblood, Jr.) 88 Angelica St., St. Louis 7, Mo. MITCHELL, Lane (B F I) School of Ceramic Engineering Georgia Institute o f Technology Atlanta, Ga. MITCHELL, Russell G. (R ) R. R. 1, Dutch Ridge Rd. Beaver, Pa. (McDanel Refractory Porcelain Co.) M ITOFF, Stephan P. 1839 Delaware St., Berkeley 3, Calif. MITRA, H. K. (I) 12 A Road East Jamshedpur E.R., India (Tata Iron & Steel Co., Ltd.) MIXER, William G., Jr. (W) 315 W . Lima' St., Findlay, Ohio . (Radio Corp. of America) MOCHEL, John M. (B ) 218 Chemung St., Painted Post, N . Y. (Coming Glass Works) MOCKRIN, Isadore (B ) Pennsylvania Salt M fg. Co. Research & Development Div. Box 4388 Chestnut Hill P.O. Philadelphia 18, Pa. MOEBUS, C. R. (M) United Clay Mines Corp., Trenton, N. J. M O FFAT, John, Jr. (R ) 12255 Miranda St. North Hollywood, Calif. (Gladding, McBcan & Co.) (Owens-Illinois) MONROE, Graham D ,, Jr. 2912 Alhambra Circle Coral Gables, Fla. MONTAGNO, Antonio M. (E ) 69 Glenmont Ave., Columbus 14, Ohio (Inland Engineering Co.) M ONTEM AYOR, Ponciano S., Jr. (X ) Box 1081 Monterrey, Nueva Leon, Mexico MONTGOMERY, Earle T. (W FI) 12 W . Jeffrey PI., Columbus 14, Ohio (Consulting Engineer) MONTGOMERY, Eldwin C. (GI) Libbey-Owens-Ford Glass Co. Technical Dept., 1701 E . Broadway Toledo 5, Ohio MONTGOMERY, Thomas B. (R) Pittsburgh Plate Glass Co. 632 F t Duquesnc Blvd. Pittsburgh 22, Pa. MONTGOMERY, Wayne C. (W ) 'Aluminum Co. o f America 230 Park Ave., New York 17, N. Y. MOODY, H . Leslie (D ) Hyalyn Porcelain, Inc., Box 460 Hickory. N. C. MOODY, Willis E. (X I) 210 E. Franklin St., Raleigh, N . C. (North Carolina State College) MOONEY, Edward L. (W ) General Laboratory Assoc,, Inc. Norwich, N. Y. MOORE, Carleton B. Box 96, Alfred, N. Y. MOORE, Charles H . (B ) P. R. Mallory & Co, 3029 E. Washington St. Indianapolis 6, Ind. 34 In. ) (1955) R oster 55 i j(0 ORE, Dwight G. (E F I) Mineral Products Division National Bureau of Standards Washington 2$, D . C. jfOORE, H. Dept, o f Glass Technology University of Sheffield Elmfield, Northumberland Rd. , Sheffield 10, England yOORE, Henry (G) 38 Potter Ave. W est New Brighton Staten Island, N . Y . (Metro Glass Co.) |(0O R E , James M. (S ) Ashe Brick Co., Van Wyck, S. C. IIOORE, John G. (W ) 1 405 E . Poplar St., Robinson 2, 111. (W . A. Case & Son Mfg. Co.) HOORE .& M UNG ER (Murray Ruskmore, Jr.) 33 Rector St. New York 6, N . Y . jOORE, Richard S . (R I) Harbison-Walker Refractories Co. 1800 Farmers Bank Bldg. Pittsburgh 22, Pa. SjjfOORE, Robert F. (R ) 3345 Forbes St., Pittsburgh 13, Pa. (Jones & Laughlin Steel Co.) HORAN, J. J. (G) Landis Ave. & Spring Rd. Vineland, N. J. (Kimble Glass Co.) ORELL, N . L. (M ) . 313 Union Bank Bldg., Bethlehem, Pa. j|i (N . L . Morell Co.) iijfORENA, Alfred (W I) 4. 90 Hazel St., Clifton, N . J. 5 (Mucon Corp.) ORGAN, John M. (W J) } 718 Rankin Ave., Schenectady 8, N\ Y. j (General Electric Co.) .ORGAN, Raymond W . (R) a R. W . Morgan Co., 12099 Woodbine 3 Detroit 39, Mich. .ORGAN, Robert A . (W I) Pass & Seymour, Inc., Syracuse, N. Y. RGAN, Stuart F . (W I) "Marshnere", Mattapoisett Neck Rd. ; Mattapoisett, Mass. . (J. I. Paulding, Inc.) |<KORGAN, Willard L. (G ) V 1203 Moundview Ave., Newark, Ohio S (Owens-Corning Fiberglas Corp.) Mo r g a n , w iiiiam r . ( g f i ) i 1343 Brookwood, Birmingham, Mich. * (Peninsular Grinding Wheel Div. 1 Abrasive & Metal Products Co.) jiO R N IN , Bob L. (W I) 3885 Pierce, Wheatridge, Colo. T (Coors Porcelain Co.) HORREN, Georges 42 Bd Guillaume Van Haelen *' Forest, Brussels, Belgium (Diamant Boart) ORRIS, Ernest D. 15 Irby Rd., Hcswall, j Cheshire, England a (Morgan Refractories Ltd.) ORRIS, Frank (W ) * 236 Greenpoint Ave. i Brooklyn 22, N. Y. 3 (Levitn Mfg. Co., Inc.) JiORRIS, George J. (E ) I Research Dept., Ferro Corp. j : 41S0 E . S6th St., Cleveland 5, Ohio MORRIS, Irvine H . (W ) Ferro Corp., 4150 E . 56th St. Cleveland, Ohio I ^ORRIS, John L. (D ) 14427 AUingham, Norwalk, Calif. (Durochrome Decalcomania Co., Inc.) I/^R R IS, Paul R. (G) fittsburgh Plate Glass Co. i v . Creighton. Pa. IfO R R iS, W . C. (G ) 1 1251 Mayfield Ridge, Cleveland 24, Ohio (Harshaw Chemical Co.) h i . 34, N o. 10 (1955) MORRISON, Boone H. (G) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. MORRISON, R. F. (M) 384 Gulf Rd., Elyria, Ohio (Harshaw Chemical Co.) MORRISON, Wallace S. (E) Illinois Water Treatment Co. 840 Cedar St., Rockford, 111. MORSE, Arthur E. 17 Cherry St. Wright-Patterson AFB, Ohio MORSE, Clifford E. (G ) Dominion Glass Co., Ltd. Box 190, Montreal, Que., Canada MORSE, George T. (W F ) Smooth*On Mfg. Co. 572 Communipaw Ave. Jersey City 4, N. J. MORTON POTTERY CO. (S . W. Rapp, Jr.), 315 W . Jefferson St. Morton, 111. MORTON, William A. (G) 46 Standish Blvd., ML Lebanon Pittsburgh 28, Pa. (Loftus Engineering Corp.) MOSAIC TILE CO. Zanesville, Ohio MOSER, Berthold B. Industria Ccramica, Ltda. Apartado Aereo 4829, Bogota, Colombia MOSER, John B. (S) 786 Warren St. Galesburg, 111. (Purington Brick & Tile Co.) MOSER, John L. (R I) 1210 Acorn Dr., Dayton 9, Ohio (Carborundum Co.) MOSS, LeRoy L. (E l) Box 16, Solon, Ohio (Ferro Corp.) MOTSCH, F. R. (G ) Foster-Forbes Glass Co., Marion, Ind. MOULD, Richard E. (G ) Preston Labs.. Box 149. Butler, Pa. MOULD, W . J. (W ) Steubenville Pottery Co. Steubenville, Ohio M OUNT CLEMENS POTTERY CO. (Charles E. Doll) Mount Clemens, Mich. MOURAUD, Paul H. (W ) 14 Ingleside Rd. Upper Montclair, N . J. (Page-Madden Co.) MOWREY, Fred W . (GI) 108 Rodgers Dr., New Kensington, Pa. (A m erican W indow G lass C o.) MUAN, Arnulf (B) Pennsylvania State University 23 Mineral Sciences Bldg. University Park, Pa. MUELLER, Edward E. (R I) School of Mineral Engineering University of Washington Seattle 5, Wash. MUELLER, Ferd A. (R ) 1360 Rudd, Canon City, Colo. (Freeman Fire Brick Co.) MUELLER, James I. (B I) Ceramic Engineering Division School of Mineral Engineering University of Washington Seattle 5, Wash. MULLADY, Russell E. (M ) 459 E. High St., New Philadelphia, Ohio (Titanium Alloy Mfg. Div., National Lead Co.) M ULLAN, Joseph (S ) Champion Brick Co. 7600 Pulaski Highway Baltimore 6, Md. MULLEN, Willard F. (M) R.R. 1, State College, Pa. (Consultant) MULL!. c nrd Sta,. e m/ cilan-Manufaktur Berlin Ha; tu . asse 1-3 (13 Di a ir. U. . MULL!. il G i many Ma.> ( h i ) BaiM kefi tories 845 anna Slilg., Cleveland 15, Ohio MULLK Rol it Ste. mail', rie de St. Maurice 29 i c du /a l dfosne St. . .ric France MULL! T, win F. (E ) Joncs et Products Co. Wes ttc, Ohio M ULLI J. RI FACTO RIES CO. (Edv. n l L lohn) 1 0 C 15 , Shelton, Conn. MULROY, Jan s P. (E l) 965 1 faye r Ave., Buffalo 9, N . Y . MULRY/. N, Il ry (W ) S ien Talc ti Clay Co. Box 30, ith Pasadena, Calif. MULVA 15, C K. (E ) 4138 .21 S t, Milwaukee 9, Wise. (A . i . Su Corp.) MUND Y . S (W I) 426 } Y. c., Wheaton, 111. (W es' n' ectric Co.) MURGA'I HOY , John B. Rock , . re ass, Ltd., Rockwarc Ave. Greer turd, liddlesex, England MURPHY, Ha y T. (R ) Climax Fir Brick Co., Climax, Pa. MURPH Y, Re. ngton M. (W ) 7744/ Wa .er Way Lynn ks Gardens Elkit 'a. - 17, Pa. (Inter iimo .mI Resistance Co.) MURRAY, Er -st L. (M ) United States Ceramic Tile Co. East Sparta, Ohio MURRAY, Lou s J. Vaal Potteries, Ltd., Box 49 Mcyctton, Transvaal, South Africa MURRAY, Ma rice A. (W I) Redding F ce, Towaco, N . J. (B . G. Com .) M URRA ' , Ro rt S. (G) B. F. rakcnfeld & Co., Inc. Washington, Pa. m u s s e l m a n , h . g . (G) 4413 Old lYcderick Rd. Baltimore 29, Md. (Carr-Lowi ey Glass Co.) M UTTITT, F. C. (R ) Algoma Ste el Corp. Sault Ste. Marie, Ont., Canada MYCAX1. F C O R P. OF AMERICA (Riel. 1 A. Humphrey) Clifton Blvd., Clifton, N . J. MYERS. C. H. (S ) Utah Fire Clay Co. Box 127, Salt Lake City, Utah MYERS, Charles V . (W ) Eljer Co., Third Ave., Ford City, Pa. MYERS, Wilbur C. (B ) 2401 Malden Rd., Cleveland 21, Ohio (Brush Electronics) M YERSON, Martin (W ) Myerson Tooth Corp. 90 Hamilton St., Cambridge Mass. MYGDAL, Rolf L. (W ) 412 Florence Ct., Florence, Ala. (Stylon Southern Corp.) N NADLER, Marion R. (R ) 5825 Enright Ave., Dayton 3, Ohio (Wright-Patterson Air Force Base) NAGAN, Harold R. 4537 Spruce St.( Philadelphia, Pa. NAKAMURA, H. Henry (B) Armour Research Foundation of Illinois Institute of Technology 3427 S. Federal St., Chicago 16, 111. R oster 57 IRA, Yoi'liikam s Glass Co. , borne, Ginza, Cho-ku o >, Japan L John B. (S ) y Burton A v e , Macon, Ga. C tee Brick & Tile Co.) v: HAN, Malur D. .ir. 4-051, Ceramics Div. f; chusetts Institute o f Tech. 'a idge 39, Mass. ' Id S. (D F ) J ' tty of Cincinnati ,,< s D ep t, Cincinnati 21, Ohio ri >ert (W ) i< n California Gas Co. i< .. .9, Terminal Annex jc> Angeles 54, Calif. C rO R P . (R . A. Shipley) >r fth Ave., Pittsburgh 22, Pa. IO !. E N G IN E E R IN G CO. 5T N MIX -M ULLER D IV. V. ruby) >49 'ashington Blvd. .Trie (>, ID. IO 1 MDU STRIAI, 3AI a.'. N; (V . P . Ahearn) .32 t., NT.W, Washington 4, D. C. ir LEAD CO. (Alex Stewart) ;! "vay. New York 6. N. Y. ! I .'ME AND STONE CO. ; eve) P in t National Bldg. \ { k. Lev t.N Philac :ic m (P: lit G v br y t Is 'C! l v'T. V ' ( '1 V Tn J ; J r IF l ( -F i: -5 FRA CTORIES C O , INC. ins) 17th Floor B ld g, 225 S. 15th St. . 2. I'a. " SEARCH CORP. ugh) 70 Memorial Dr. . Mass. ICS 1 aba1 ;c Max .ice (O ise), France lif (111 1 1 ib , neral Electric Co. is, Sel .cctncly, N . Y. , Ham 3, Lauf / i'cgnitz , German. -h & Co) es E. (F ) Ift rd Ave. V. J. c.) CC <1. (J) 'ran s meeting. Ltd. V. l e s G, Roy i-:. G. nam Ave , Zanesville, Ohio omrr E., Tr. (G) llth Ave , Tarentum, Pa. x y h P lat Glass Co.) an! ). \ T - *r !' " U: n, Pa. Refractories Co.) (S car. h Foundation S t , Chicago 16, 111. C. r K) efrac es Co. . Ky. Tnc. r,, I-ouisville 8, Ky. (E l) , 3533 N . 27th St. K) inis , Urbana, 111. Salt Lake City, Utah n t) ca Falls, N. Y\ "inducts. Inc.) (R) feci Co. Utah NEI.SO N, William I. (GJ) 118 Mary St,, Binghamton, N . Y. (Solvay Process D iv , Allied Chemical & Dye Corp.) NElt lN ST O N E , Marc A. (X J) 311 W . 75th S t , New York 23, N . Y. NETTER, William S. (G) Keystone Ahrasive Wheel Co. Gregg & Hammond A v es, Carnegie, Pa. NETZSCH , Eric Maschinenfabrik Gebrueder Netzsch / Verkstrassr 19 : elb (Bayern), Germany NET. H A U S, Jacques 18 Rue Cita i les Laffitte . euilly Sur, Seine, France Etablissements Jean Neuhaus) NEI MANN, Paul D. (G) Knox St., Campbell, N . Y. (Corning Class Works) NEW', Ryland J. (S) 'ational Sewer Pipe Ltd. ox 36, ( kville, Ont., Canada NE', ARK, Ft n k F. (W ) luminimi Co. o f America 450 Terminal Tower lleveland 3, Ohio N E \ ARK, * tin (M ) iraonds A rasive Co. acony & -raley Sts. hiladclpi . 37, Pa. NEW BO LD C ISNERAL TEFRAC O K IES, L T D , Gavey St. ;ayfield, '. S. W , Australia N E ' CAST! . REFRACTORIES CO. ilI. W . 1 'land) New Castle. Pa. NE'. COMB, :xford, Jr. (E l) 15 Dod RX Cb. N E '. / JERSJ J. M. g ; 'rcnlon 5 N E '' KIRK, ' 'orlland 1< ment Association Fellowship ?! ational reau of Standards 'Varfilnf! 25, D. C. N E \ MAN, 1 dan Av- ..Genera! NK.' /P O R T , Dow Cb Freeport, :cal .C o, Bldg. B 1220 N EW T O N , t very C. (R ) rile Ref tories Institute 'irst Na nal Bank Bldg. Pittsbun 22. Pa. NCHOT.SQ Albert H . (D ) exleral ass Co. 15 Inni/; A v e, Columbus 7, Ohio NTV MAN, A. IL (G) Ohio U C o, Woodville, Ohio NIK LEW SK B. K. Main Jv . nel Mfg. C o , Ltd. Gothic V :ks, Angel Rd. EduKHit' London, N . 18, England N l :s F i l BRICK CO. (J. R. * lingan) 165 E. Park Ave. files, < io N r 'ON T Jun 1 Niishiku ill KAISHA, LTD. wa) # 1, Noritakcshinmachi, agoya, Japan N! ILA. C ter A. (R ) 716 '.i : S t , Riverton, N . J. (Silln : Abrasive Co.) NI-VKN. '* :ay . Puitv v, 1 (G) i fg. C o, 465 Centre St. ss. K P -\)GI M/S V P. C\ Pal?', N r KS. : 'ai Ari Nfarit 1 Enamel Works Ltd. al Enamel arganas) West Bengal, India rick L. im C o, L td , Trafford Park r 17, England N r ' '-K. 1 ene L. (E ) .1714 ngton A v e , H ev .'9, Ohio ! :>; i-.) NOBLES, Melvin A . (B ) Oklahoma A . & M. College Mechanical Engineering Dept. Stillwater, Olda. NOCK, Charles J. (R ) 315 Front S t , Berea, Ohio (Nock & Son Co.) NODA, Tokiti Dept, of Applied Chemistry Faculty of Engineering Nagoya University Chikusa-ku, Nagoya, Japan NOE, James T. ( S ) 411 Madison A v e , Brookville, Pa. (Hanley Co.) NOHLE, Richard C. (S JI) Claycraft Co. Box 866, Columbus 16, Ohio NORANTE, Nicholas J. (W ) 609 Spring S t, Latrobe, Pa. (Stupakoff Ceramic & M fg. D iv , Carborundum Co.) NORDBERG, Martin E. (G) 134 E . Fourth St., Corning, N . Y . (Corning Glass Works) NORDGREN, Harry Aktieholaget Gustavsberg Fabriker Gustavsberg, Stockholm, Sweden NORDMEYER, Rndy L. (S ) Valley Brick & Tile C o , Box 353 Mission, Texas NORDQUIST, Clarence E. 4328 Bagley A v e, Seattle 3, Wash. NORDQUIST, Lawrence E . (BJ) Comell-Dubilier Electric Corp. 1605 Rodney French Blvd. New Bedford, Mass. NORDYKE, J. S. (M F) Hammond Lead Products, Inc. 1602 Oliver B ld g, Pittsburgh 22. Pa. NOREN, Saul c/o A. Korn, Creek R d , Holley, K. Y. NORM ANDEAU, Pierre (D ) 3660 Hutchison St. Montreal 18, Q u c, Canada NORRIS, Charles R. (W ) 4024 Diehl A v e , Cincinnati 36, Ohio (Charbeaux Pottery) NORRIS, Orin E. (R) Great Lakes Carbon Corp. Hancock Bldg. Niagara Falls, N, Y. NORRIS, Richard L. 633 Fourth W ,, Seattle 99, Wash. NORRIS-THERM ADOR CORP. (Edgar H . Freeman), 20118 E. Valley Walnut, Calif. NORTH AMERICAN P H IL IP S C O , IN C . (C. J. Woods) Research & Control Instruments Div. 750 S . Fulton. A v e, Mt. Vernon, N. Y. NORTH AMERICAN REFRACTORIES CO. 1012 National City E. Sixth Bldg. Cleveland 14, Ohio NORTH CAROLINA FELDSPAR CORP. (W . F. Deneen) Erwin, Tenn. NORTHWESTERN GLASS CO. (Edward S. Campbell) 5807 E. Marginal Way Seattle 4, Wash. NORTHW ESTERN TERRA COTTA CO. (Burnette Purcell) 1750 Wrightwood A v e , Chicago 14, 111. NORTON, Charles L , Jr. (R F ) Babcock & W ilcox C o , 161 E. 42nd St. New York 17, N. Y. NORTON CO. ( 0 . J. Whittemore, Jr.) Worcester 6, Mass. NORTON, Frederick H . (B F I) Dept, of Metallurgy Div, of Ceramics Mass. Institute of Technology Cambridge 39, Mass. NORTON, James M, (R ) 125 Kent B lvd, Salamanca, N . Y. (C. B. Norton & Son Co.) 055) RqSTER 59 .ORWALK, L t. Marshall H. (XJ) WADC Area "B", Box 8604 Wright-Patterson AFB, Ohio jORWOOD, J. Nelson (L ife, X ) Alfred University, Alfred, N. Y. ,0 W , Otto R. (E) yago Vitreous Corp. o S. 55th Ct., Cicero 50, III. jOWELL, borroh L., Jr. (S ) 202 Broad St,, Augusta, Ga. (Merry Bros. Brick & Tile Co.) (YQUIST, Roy A. (G) 3650 BtecLifay Blvd., Toledo 14, (Libbey-Owens-Ford Glass Co.) Ohio o jAKLEY, w. W. (GF) Box 35, Corning, N . Y. (Corning Glass Works) jBANNON, L. S. (E) 2239 Farleigh Rd., Columbus 21, Ohio (Battelle Memorial Institute) fiERST, Clair R. (M) Industrial Ceramic Products, Inc. 965 W . Fifth Ave., Columbus 8, Ohio lURIEN, Neil H . (SJ) 20 Central Dr., Port Washington, N . iCHS, A. C , BRICK & T IL E CO. (Elmer E. Apt) Springfield, Minn. (CONNELL. Thomas B . (G) Libbey-Owens-Ford Glass Co. '1701 E. Broadway, Toledo 5, Ohio fCONNOR, Jerry B. (M ) 1205 Edgewood Ave., Apt. B-3 Trenton 8, N . J. (O. Hommel Co.) )D0M, Paul R. (M ) 4194 Villa Ave., Macon, Ga. (J. M. Huber Corp.) 1ESCH, Robert B. (S ) Teague Brick & Tile Co., Teague, Texas 0ES'r ' *\LE, Henry (E ) jh Enamel & M fg. Co. ?ir\,. Main & N . 24th Sts. Belleville. 111. ESTERLE, Robert A. (E ) 2427 W . Main, BelleviUe, lit. L.'.(Roesci Enamel & M fg. Co.) BDEN, D. P. (S ) Ogden Engineering Co. r Box 218, Ottawa, 111. DEN, Ellsworth P. (RF) ) Box 537, Granby. Colo. DEN, John T . (GF) Glass Industry i-;. SS W . 42nd St., New Y ork 36, N. Y. JCDEN, William D.. Jr. (R I) Island Route, Lock Haven, Pa. | (North American Refractories Co.) ARE, Charles A. (W ) American Cyanamid Co. 30 Rockefeller Plaza New York 20, N. Y. jpO BRASS CO. (J. J. Taylor) Barberton, Ohio O CLAY CO. (Norman E . Denison) ;'.Box 1776, Cleveland 5, Ohio LIME CO. (A. H . Nieman) Woodville, Ohio tlGER, Lewis P. (G) f309 Ridgeview Dr i e s t Rochester, N. Y. '(Bausch & Lomb Optical Co.) JifYSTY, Lt. JG Basil (RJ) Naval Exam Center, USNTC "teat Lakes, 111. Hic k o r y c l a y c o . fa Powell) :1 , Paducah, Ky. W. J. (R) j,*' Seminole Ave., Claymont, Del. (* I. du Pont de Nemours & Co.) l i f t Frank C. (R) 99 Chamber of Commerce Bldg, g^janapolis 4, Ind. OLIVER, John C. (E) Porcelain Enamel Institute 114S 19th St., N. W. Washington 6, D. C. O LSEN, Eric (D ) R. R. 63, Dundee, III. (Haeger Potteries, Inc.) O LSEN, John M. (G) E. I. du Pont de Nemours 8t Co., Inc. Electrochemicals Dept. Wilmington 98, Del. O LSEN. Rangwald S. (E l) 1137 Grant St., Evanston, 111. (Armour Research Foundation) OLSON. E. E. (G) A. H . Heiscy & Co., Newark, Ohio OLSON, Hjalmar Aktiebolaget Gustavsbergs Fabriker Gustavsberg, Sweden OLSON, Ole A. (R) 5 Wrenwood Court Webster Groves 19, Mo. (Laclede-Christy Co.) O N O N D A G A POTTERY CO. (R. H. Pass) 1856-58 W. Fayette St. Syracuse 4, N. Y. ORAVEC, Joseph A. (S ) Y. 3731 N. Newland Ave., Chicago 34, III. OREFRACTION, INC. (Albert L. Kreuer) 7425 Thomas St. Pittsburgh 8, Pa. ORMSBY, Walter C. National Bureau of Standards Washington 25, D. C. ORNELLA, LeRoy F. (GJ) 3206 Upton Ave., Toledo 6, Ohio (Glass Fibers, Inc.) ORR, David B. R.R. 2, Oneonta, N. Y. O RTEPIO, Salvatore (W ) General Ceramics Corp., Crows Mill Rd. Keasbey, N . J.' ORTH. Howard S. (W) Industrial Ceramic Products, Inc. 965 W. Fifth Ave., Columbus 8, Ohio ORTMAN, Fred B. (RFI) Gladding, McBean & Co. 2901 Los F d iz Blvd. Los Angeles 39, Calif. O R TO N , EDW ARD, JR., CERAMIC FOUNDATION (J. L. Carruthers) 1445 Summit St. Box 146, Sta. A, Columbus 1, Ohio ORTON, Mrs. Edward, Jr. 39 *W. Torrence Rd., Columbus. Ohio ORZANO. Michael J. (S I) Claycraft Co. Box 866, Columbus 16, Ohio OSAWA, H. K. (S) 3512 E. Fifth St., Los Angeles 63, Calif. OSBORN, Elburt F. (B) College of Mineral Industries Pennsylvania State University University Park, Pa. O SBORN, Walton O. (R) North American Refractories Co. Water St., Lock Haven, Pa. OSBORNE, David G. Lemington Glass Works Ltd. Lcmington Newcastle-on-Tyne 5, England OSTERHOLTZ, Carl (R) A. P. Green Fire Brick Co. Mexico, Mo. OSTM AN. Emit L. (E) 862-- 43rd St., Brooklyn 32, N. Y. (Bettinger Corp.) OSTRANDER, Eugene C. (G) Kopp Glass, Inc. Box 8255, Swissvale, Pittsburgh 18, Pa. OTLEY, J. D. (S) John B. Kelly Inc. of Penn. 1720 Cherry St., Philadelphia 3, Pa. OTTAW A SILICA CO. (George A. Thornton) Box 437 Ottawa, III. 34, N o. 10 (1955) ... ft). OTTO, O t gt ii. < 53 W. jart-son '. Chicago 4, 111. (Con.-, a: L) OTTO. W. .a*n 11. Owena Co "I. ! . - Iglas Corp. Ncwai , L i OTTOSCK , A - . ! 4300 ! igh. Shadyside, Ohio (lm pe..al f.h. p.) OWEN, K.ede.ick !.. .) Eleatri al i . - - : ies Co. East 1 destine. . i. o OW EN, J. D. R. Fooler, Lu,., I itrroy St. Marrie: vide, S .. y, N .S.W ., Australia OWENS-CORNING IBERGLAS CORP. (A. C. Siefcrt' Itwark, Ohio OWENS-I I N O S (W. Funke) Box ! On ...I 4, Calif. O W E N S-! NG1 (E. W. Summers) Techoi.-.i Cemrt, Box 1035 Toledo ;, Ohio OW ENS, !.. .:s S. . ) Chaun Spai rag Co.. Ceramic Div. 8525 Butler Ar ., Detroit 11, Mich. P PABST. J >n G. ( 1 ) 552 N ...ain S: , Butler, Pa. (Saxoi.i. irg Ce: amies) PACHL, Margaret ',!;) Univetsity of . ,ih Dakota Ceramics Dept.. Grand Forks, N. D. PACIFIC C AY 1 O DUCTS (John D. F revi i :ks) Box 2178, Tetrninal Annex Los Angeles 54, Calif. PACIFIC COAST 1IORAX CO. (M. It. Piekanl) , Div. ot Borax , onsolidated, Ltd. 100 Faik Ave., New York 17, N . Y . PACKMA::, W illai'I D. (W I) E. M. Knowles China Co. East Liverpool, Ohio PADEN CITY POTTERY CO. (Merrill C. Son,les) Fadeu City, W . Va. PADFIELD, Ralph C. (R ) Apt. IOK, Parkhurst Apts. Bethleliem, Pa. (Bethlet.em Steel Co.) PADILLA, Kederiei. Apartado Postal 26783, Mexico, D. F. (Electroceramiea, S. A .) PAFF, John A. (G) 232 N. Sixth St,, Reading, Pa. (Willson Products, Inc.) PAFFORD, Ray W. (SF) Acme Brick Co. . Box 425, Fort Worth 1, Texas PALAD1NO, Albert E., Jr. Box 826, Alfred, N. Y. PALMER, Delos M. (D ) 4401 Jackman Rd., Toledo 12, Ohio (Delos M. Palmer & Associates) PALMER, Rufus N. (M) 476 Broadmoor Ave., Pittsburgh 34, Pa. (Consultant) PALMER, Willard E. (S I) 502 N. Cross St., Newcomerstown, Ohio (Clay City Pipe Co.) PALMERI, Victor R. (E ) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio PALMOUR, Hayne III (B I) Box 204, Signal Mountain, Tenn. (American Lava Corp.) PALOMBI, Lawrence M. Box 108, Elbridge, N . Y. PALTZER, Clifford (X J) 1100 Peace St., Pella. la. PAPER MAKERS IM PORTING CO.. IN C . (Charles Brian) 44 S. Second St., Easton, Pa. PAPIER, Harry (S) Natco Corp., Box 267, Cordova, Ala. R oster 61 ,1-* 'IS James 33 ire* '. line Ave., Boston IS , Mass. rET Martin W . (W ) ol t s Mfg. Co. o r -if;, Trenton 5, N. J. K Niranjan M. (B ) ii. jtgy Dept. sir. .lie laboratory oni Motor Co., Dearborn, Mich. 3 1 . Gulden M,, Jr. (D ) lid an l ottery, Inc., Alfred, N . Y. :e ry (B I) Hi c Terrace ilv ?. Mu. N'a ii.au-of Standards) :f W., Jr. (S ) j , o! ! ' speare Rd. . C. Ca imics, Inc.) :e <G) ! i r* . son Fiber Glass Co. 73 a St., Los Angeles 7, Calif. :f. nil W. (S) n ;. > Product Co. ianee, Ohio n : . J. (G) U . Technical Center wood, .Toledo, `Ohio . lories Ltd. V and 0 \ . (W I) * ", Indianapolis 20, Ind. I |.) c s F.. (S ) 1 logy Division ? i o! Standards . V'l. I**. . 1 i<) 1 Irick Co. 1 Ave., Chicago 20, 111. A. (M) Ciiv. N. C. \ r 'I') ! FT) t Technology >f Ca nia . Calif. at y F ., Jr. ;R) c wply Co., Crooksville, Ohio > nour, ine., Solvay Sta. ve., Syra se 9, N . Y. "O o! IV (n . ctt; St. '.O ,i>. '.'.'G. (J. S. Pass) doit, SD Boyd Ave. ,N . Y. W. (R) s Fngr. 8r Supplies, Ltd. St., 1lap'ilton, Ont., Canada -rt I . ( .1) PEARCH, William M. (W I) Akron Porcelain Co., Akron 14, Ohio PEARSON, Edward P. (R ) Basie Refract tries, Inc. P. O. Fostoria , Ohio PEA R SO N , E. J. & J., LTD. (Charles A. G. Thomas) Firebrick Works Stourbridge, !iugland PEA SE, Philip J. (G) 1405 Washing ton Ave. Parkers nil'. V. Va. (D em u!;i i Works, Inc.) PECH MAN, A nder (W I) 61! N. ., Pomona, Calif. (F'nraoi ' !- Mfg. Co.) PECK, J . ( . 6.x W 1) St., York, Pa. (G'.en-i I PECK IA> Cl.atta lc Brick Corp.) e W. (G) ss Co. O nta PEC! Tenn. t H. (G) V ptical Co. 2 it., Reading, Pa. PED cV. /.SI (G) 1: Co.. M illville, N . J. P E D Hi1 o (M I) !., Garden City, N. Y. PEE! i. t or. i Manufacturers Ltd.. C sc I -c yue, 1, England PEU , GF) 1 !' T I . e Co. fg. Co. ford 2, Conn. PEK .1 G. (B) c Ave., Willoughby, Ohio ( PEL. ducts, Inc.) (E l) ` I, Parma 9, Ohio PEM : l PEN i 1 be " 74 pen . r I f 09 i P E N NS.Y! (W illi Tv i P l'sh . PEN O ' ' .VI : c PEP Y, i en R Cl 1a 1 P E P ; 1NS Cl ntrjb ; |- tichard H . Turk) \ve., Baltimore 24, xy (G) iromelt Co. '., Seattle 6, Wash. .. (W F I) r., Austin 3, Texas PULVERIZING Kids, Jr.) Center Pa. ph L. Uinois Jrbana, III. (M ) ent Co. Rd. ion A, Columbus, L. (M) rgia Railway Co. verty Bldg. Md. CO. Ohio Ht Are. I. ry K. (M ) w S'., Milwaukee 10, Wise. R. herd C. (W ) tes Ceni tic Tile Co. v, W . V t. I (1 - ' .Vorcester 6, Mass. ~f) PEE' PEE i <r < .ct PF.F ! . '. f X/ PEP ! ; 4-, . ? ! ? , Ohio y ) J. (W ) -niant, N . Y. .a t ) PE! PEE ! ) PET ciety ! ..olumbus 14, Ohio d ' . vjn PE" 1., Baltimore, Md. il Electric Co.) W. (W I) t., Linden, N . J. ire Co.) (W I) r, N . Y. ors, Inc.) 1, N . Y. iJ) T> S t. Texas . a.) r A. R. (D ) ite Library v, Philadelphia 3, Pa. L. (R) Jo., Perth Amboy, N ."j T. (G) r., Elmira, N . Y. Works) A. (E F I) Associates s;., Cleveland IS, Ohio PETERSON, Albert F. 90 Fresh Pond Pky. Cambridge 38, Mass. PETERSO N, Jack D . (G) 3029 123rd St., Toledo 11, Ohio (Kimble Glass Co.) PETERSON, Jack L. (RI) 9911 Calmada Ave., Whittier, Calif. (Melvin L. Jontz Co.) PETERSO N, W . H ., Jr. (R ) Valentine Fire Brick Co. D iv. A. P . Green Fire Brick Co. Woodbridge, N . J. PETRIE, Earl C. (R FI) North American Refractories Co. 1012 National City E. Sixth Bldg. Cleveland 14, Ohio PETRIE, Lloyd R. (W ) 30S Western, Abingdon, III. (Abingdon Potteries, Inc.) PETT, Tyler G. (G) 261 Antlers Dr., Rochester 18, N . Y . (Bausch & Lomb Optical Co.) PETTY, Frank (W ) 2771 W . 230th S t Fairview Park 26. Ohio (Cleveland Ceramic Corp.) PETTY. Howard E. (S) 3131 Ryons, Lincoln 2, Nebr. (Yankee Hill Brick M fg. Co.) PEZDIRTZ. David 2013-F Red River, Austin 5, Texas PFAUDLER CO. (Sidney W . McCann) 1000 West Ave., Rochester 3, N . Y. PFEIFF, C. H. (R ) Curran-Pfeif Corp. Box 527, Metuchen, N . J, PFEIFFER, Wilbur H. (E F I) Engineering Lab., Plant 2 Frigidaire Div., General Motors Corp. Dayton 1, Ohio PFLEGER, George E. (M) Harshaw Chemical Co. 3237 S. Garfield, Los Angeles 22, Calif. PHADKE. V. S. Central Potteries, Ltd. Itwari, Nagpur 2, India PHELPS DODGE CORP. MORENCI BRANCH (L. L. McDaniel) Morenci, Ariz. PH ELPS, Girard W . <M) 410 E. Magnolia Dr., Morrisville, Pa. (United Clay Mines Corp.) PH ELPS. Stuart M. (R F ) Mellon Institute. Pittsburgh 13, Pa. PHILLIPS. Adrian W.. Jr. ( R ) .. 316 Fairmont Ave., New Castle, Pa. (Shenango China, Inc.) PH ILL IPS, Charles J. (G ) Radio Corp. of America RCA Victor Div., Bldg. 8-5 Camden. N . J. PHILLIPS. Edwin L. (M I) Carolina Pyrophyllite Co. Box 2414. Greensboro, N . C. PH ILLIPS. Gordon D. (W ) Oiean Tile Co., Olean, N. Y. PHILLIPS, Jack E. (W ) Box 44, Lakewood Ave. East Quogue, L. I., N. Y. (Brookhaven National Lah.) PH ILLIPS, James G. (R I) Dept, of Mines & Technical Surveys Mines Branch, Industrial Minerals Div. Lydia St., Ottawa, Ont., Canada PH ILL IPS, Leigh F. Box 87, East Quogue, L. I., N . Y. PH ILLIPS, Richard A. 1836 Willow Ave., Niagara Falls, N . Y. PHILLIPS. W. Eric (G) Duplate Canada Ltd., Box 367 Terminal A, Toronto, Ont., Canada PHOENIX, Richard Carl (WJI) R.R. 1, Wynnewood Bound Brook, N. J. (Moore & Mungcr) - ) R oster 63 LARD, M. H. (M) 'acific Coast Bdrax Co. ' )iv. of Borax Consolidated, Ltd. 00 Park Ave., New York 17, N. Y. :ETT, A. R. (R) Ouminum Co. of America SOI Alcoa Bldg., Pittsburgh 19, Pa. B vrtliur O. (M ) 0L Ivor Court Rd. tochester 10, N . Y. Hcany Industrial Ceramic Corp.) :CE GLASS CO. (J. G. Bozzo) '.ailroad Ave., Port Allegany, Pa. CE, J. Allen (R ) 98 Chalmers PI., Pittsburgh 16, Pa. Harbison-Walker Refractories Co.) PO N T, Harlan T., Jr. (R ) Jorton Co., 1 New Bond St. Vorcester 6, Mass. TT, Phillip G. (X ) 00 Keystone Ln., Oak Ridge, Tenn. .INGTON, Lawrence H . A. lessrs. Pilkington Bros., Ltd. lass Works, St. Helens, England iINGTON'S TELES O UTH AFRICA (PTY.) LTD. G. N. Downing) Box 70 leyerton, Transvaal, South Africa U S, Alexis G. (W ) 061 Glenwood Blvd. chenectady 8, N . Y. General Electric Co.) 'EY, J. M. (W ) tarker Pottery Co. last Liverpool, Ohio OW , Harley R. (W ) 'ond St., R. R. 19 last Liverpool, Ohio Hall China Co.) >TTI, Fred D . (G) 324 Middlesex Dr., Toledo, Ohio Kimble Glass Co.) LA, J. Donald (R ) iorning Glass Works, Coming, N . Y. EN" 'R, John T . (W ) !ox : Newell, W . Va. H o n ... Laughlin China Co.) M AN, Jack 932 E. Mercer Way lercer Island, Wash. M AN, W illiam C. (R ) 119 Omena PL, Cincinnati 38, Ohio Chas. Taylor Sons Co.) S, Joseph W . (E ) 714 Beech Ave., Bethesda 14, Md. National Bureau of Standards) SBURGH CORNING CORP. Walter D. Ford) esearch & Development Div. ort Allegany, Pa. SBURGH PLATE GLASS CO. S. F . Cox) Creighton, Pa. EY, Francis V . (S) 58 Grand St., Newburgh, N. Y. iE, Tom M. (W I) telipot Corp. 16 Meridian St. outh Pasadena, Calif. iE, Thomas M., Jr. (W ) 413 W . 116th St., Inglewood 4, Calif. Helipot Corp.) >GE, Vernon L . (G) 89 Park Ave., E ast Orange, N . J. Westinghouse Electric Corp.) fJE, Christian W . (R I) ox 3152, Seattle 14, Wash. Gladding, McBean & Co.) JJE, Theodore J. M. (B ) Summit Ave., Rolla, Mo. Missouri School of Mines) K E N H O R N , W illiam J. ( E l) hies iitreous Corp. 127 . 3th Ct. icero 50, 111. SA N TS, Luther E,, Jr. (G) 102 Brookfield Rd., Richmond, Va. Allied Chemical & Dye Corp.) 34, N o. 10 (1955) PLOETZ, Edwin C. H . ( E l) . 680 S. Lincoln Ave.,- Kankakee, 111. (A . O. Smith Corp.) PLOETZ, George L. (W ) 261 Swaggertown Rd., Scotia 2, N . Y. (General Electric Co.) PLUMBO, Victor A. (G) General Glass Equipment Co. 5 S. Virginia Ave., Atlantic City, N . J. PLUMMER, Harry C. (S F ) Structural Clay Products Institute 1520 18th St,, N. W. Washington 6, D. C. PLUMMER, J. H. (G) Box 973, Toledo 1, Ohio (Glass Fibers Inc.) PLUMMER, Norman (M) State Geological Survey of Kansas Lawrence, Kans. PLUNKETT, Jerry D. 78 Westgate, Cambridge 39, Mass. PLSCH, John A. (W ) 63 Spruce St., Westfield, Mass. (Cortland Grinding W heels Corp.) POFFENBERG, Scott (M) 11616 Chenault St. Los Angeles 49, Calif. POISSON, Louis Faencerie de Badonviller Badonviller, Meurthe et Moselle, France POLAND, Milton E. (W JI) 523 S. Pleasant St., Royal Oak, Mich. (Champion Spark Plug Co.) POLAR, Alfredo (W ) National Tile & Mfg. Co. Anderson, Ind. POLE, Gordon R. (B F I) 2592 S. Shore Blvd. White Bear Lake 10, Minn. (Minnesota Mining & Mfg. Co.) POLES, Alfred P. (W ) 325 Arborlea Ave., Morrisville, Pa. (Clifton Ceramic Mfg. Co.) POLHEMUS, D. W. (R) Carborundum Co., Bristol, Pa. POLK, Arthur E. (W ) R. R. 1, Dowagiac, Mich. (Produce Terminal Corp.) POMEROY, William T. (W ) Sterling China Co. East Liverpool, Ohio PO N D, Marvin H. (W ) 221 Ridge Ave., Gettysburg, Pa. (Keystone Ridgeway Corp.) POOLE, James P. (G) Broclcway Glass Co., Inc., Plant 2 H r/v*lfw av P a PORCELAIN METALS CORP. (P . B. McBride) 1400 S. 13th St. Louisville 10, Ky. PORST, Edward G. (E l) 1418 Stonewood Rd., Baltimore 12, Md. (Pemco Corp.) PORTER, Frank R. (E F I) 318 E. Clark St., Crown Point, Ind. (Inland Steel Co.) PORTER, J. L. (B ) Kaiser Aluminum & Chemical Corp. 1924 Broadway, Oakland 10, Calif. PORTER, Sidney C. (R ) Box 34, East Liverpool, Ohio (Consultant) PORTER, Wallace S. (W ) Universal-Rundle Corp., Box 188 Hondo, Texas POSEY IRON WORKS, INC. (Frank A. Fix) Lancaster, Pa. POSLUSZNY, Raymond F. (R ) 242 E. Meehan Ave. Philadelphia 19, Pa. (Refractory Specialties Co.) POST, Benjamin F. (R I) Cortland Grinding Wheels Corp. Chester, Mass. POST, Zarr A. (W ) . 5020 Elm St. Bethesda, Washington 14, D. C. (Division of ACF Industries, Inc. ACF Electronics) POSTF., 309 d. (.' FT) Chat I rim. (Ci po stl: Uni. . -o. 1 E. (W I) . . :p., Box 300 Ren ii. POTTE 35 ; POTTE Bell a ester, N. Y. i tW) Mur P O T TE I- (w; n \ . co. in) .it. East ., vliio POTTS, 359 F) ` , L' an, Ohio (Li s Co.) POUIL: . lib k Ha; 1. ic (Sc ti : !- U ) t. B : .!S. A. J. ." ic Co.) POULO .(B) . 1764 . N . E., Atlanta, Ga. (C<. e of Technology) POULT ( i F. (W ) 2763 s R ., Camden 4, N. J. (Uui POUND .. . e (_u p .) `.Villiai.i W. (G) Pin Glass Co. On- :. t- , Pittsburgh 22, Pa. POWEl . . ... (W) 429 :.-l Ave., Lancaster, Pa. (Ra : America) POWE) (M) Old .'.ay Co., Box 271 Pad POWEl Ind' Bro. (S') die Co., Inc., Box 66 POWEl : d 11. (M) 1279 i St., Jamestown, N. Y. POWER 102U (Co y R. (R) o., Niagara Falls, N . Y. POWER. 120; 11 V/. i Ave., Abilene, Texas POWER id. (S) Cia. de A .. i de Tabos Ave: Me* i . National No. 200 , ; . K, POWER. ii. (R) 80 C ii'. Ave., Westwood, N. J. (Nor Co.) POYNOi Aciii! W. -ie (.') k T: x 1278 Oklai. Ci , t tkia. POZEFSK . v (R) 1109 , New Milford, N. J. (Jos Cm ible Co.) PRACI1A. . iC, Manoon Dept. r, Ministry of Industry ... Bam . Ti. tiland PR ALOW, alter K. L. Zahn:.. a Wienand Sohne & Co., Gmbi!, Spreii rs. Ollenbach/Main ,en, Germany PRATT, D Id S. ( ii) 3422 h Ave., Reaver Falls, Pa. (Ingi rd a Mfg. Co.) PRECIS at. ng w id ; I.iC , (Roland J. Clark) 8301 -de Ave. Phila 36, Pa. presco ; tik R. (G) 1811 K. .1 A , Arnold, Pa. (Pitts! u Elat Glass Co.) P R E S S E Y, Clive (B) Minati .1 C. rp., '.elle Mead, N. J. PR ESTO N , Ciank V. (G) Prestoi, .' .s., B x 149, Butler, Pa. PR EW IT T. J. K. (S ) Elgin . rd 1 ick Mfg. Co. Elgin, CX.iS PREY, Ar "r H. (M l) Carboi nudum Co., Niagara Falls, N. Y. R oster 65 .ICE, CVn M. (R ) 'Gener Refractories Co., Box 1673 Baltin e 3, <Md. ICE. J s E. (R l) l'.>56 -rnscy Ave., Abington, Pa. (olmo: s Abrasive Co.) IDDY, : O. (S ) Bar!;t,t Reduction Corp. r !iarleston 3, W . Va. l J. Edward Hunt! 'rick & Fireclay Co., Ltd. Box ! Ifnntlv, New Zealand :m m . b ill !.. (R) 16S8 va lo .' ve., Arcadia, Calif. (Har' i-Wil': Refractories Co.) >'CE. n T. !I) Mint i. D1 110 an et. < awa, Ont., Canada Hi > U. (G) \ rKao.nn Dr. Wht (Ite hi,-hem), W. Va, (Hat lias Clast Co.) 01?. on V . ( \( ) P. x t" -h '.tins, N. J. ( >Vhi < ' -k Daniels, Inc.) CR, U) ! 025 \v e , N.W. lVas t i 1 (Tit 'a. Div., ' *.1!I ) ' ) V I.E CO. *. V. / . 1 1 : urydalc 17, Ohio C bo. , Jr. (GJ) la: , s : i J -, (B) Gordon, Ga. '> ' !l) Muncic, Ind. 1 - v.) 1 POOR & CO. S. Market St. V ' in 1 torti: ton At CO ROD s Ca Put rorp i 1 ) tier, Calif. .. Jr. (G) 'o. hiladelphia 44, Pa. CORP. Box 4729 i ! O `deira, Ohio namel Works 'lit Vlr At. ua '. Willia 1. 'riding 'rocesses Ltd. Rd. Cross. !r*ts, England U E. <' i easaM. xico. Mo. `efr .1 Co.) Mc.-ar (R) :(. ' k .s a \nt ri n: y. Oil Co.) tirili11r S) rii T, a Cotta Co. litwon Ave., Chicago 14, III. lug! :t) ia i ` sburgh 17, Pa. is! eri Corp.) \r. "IS CO. ' 188 . .t , F. cv (R. J. Deraaison) York 17, N . Y. 'nstitute nhus, Ohio '5) QUIRK. ' 3002 (Gen R., Santis Indi: Cast RABE, i. 10 V (' RABI 19 A (Fc. RADCZ : ln sl:' Ma, RAD!.' l!o> (1), rat ( ' RAG / 1. }. ; RACi ( RAM RAH 7 ( RAI i RAI / RAI RA! RAI. RAN RAJ RA! 1 . 1 * 1 1 nr RA! : RA * RA! si le RA! 01 N\ / Vn RA! i RA! RA ' >e RA! 1 t ra: l l P. (S) i St., Owensboro, Ky. leetrie Co.) D IV Antunez dc Mayolo Nacional Ceramica y Anexos rial 845. Lima, Peru (W ) er Ave., Collingswood, N. J. Bundle Corp.) i J. (W ) acid Village, Metuchen, N. J. . Inc.) I, Otto-Ernst r Gesteinshuttenkunde ic 5 Aachen, Germany E. (G) 1: Harbor, Ohio t RIALS CORP. <erie) rnia Ave., Chicago 18, 111. e C. (M ) y Co. cnfield Ave. t. Wise. C. (G) Rd., Toledo 13, Ohio ns) 'ted, N. Y. v) r.turing Co. V O Railroad . Ohio ' (RI) St., Mexico, Mo. 'factories Co.) F. (S) Hamburg, N. Y. rk Corp.) Holler Hadfields Ltd. rks, Sheffield 9, England (MF) Rd., Hyattsville, Md. t of Mines) :S E. (R ) er Refractories Co. Bank Bldg. . Pa. tie & Wunderlich Ltd. Perth, West Australia L. St., Cleveland, Ohio " n & Co. Ltd. v & Chemical Works t nn-Trent, England s H,, Jr. >d PI., Dallas, Texas Louis J. Jacobs) . St., Chicago 8, 111. ' F. (R) ones Co. is., Mexico, Mo. ert L,, Jr. (BJ) Dr., Chattanooga, Tenn. a Corp.) J. (M) d Co., Box 97 S. (R) . J. c Corp.) S. nie Society St., Columbus 14, Ohio VI) ne., 900 E. Keefe Ave. Vise. (W ) y Co. tin St., Morton, 111. RASE, Daniel E. (B) Box 6SS, Alfred, N .Y . (Stale University of New York, College of Ceramics) RASMUSSEN, R. K. (G) Mississippi Glass Co., Fullerton, Calif. RASM USSEN , Wayland G. (S ) Mason City Brick & Tile Co. Mason City, la. RASSNER, Donald D. (SI) 60S Amory Ave., Cordova, Ala. (Natco Corp.) RATCLIFFE, Harry J. (M ) 724 Bunker H ill Ave., Trenton, N. J. (Unique Kilns of Trenton, Inc.) RATCLIFFE, Temple W . (R) 244 Buffalo St., Beaver, Pa. (Babcock & Wilcox Co.) RATHM ANN, Clyde L. (G) R. R. 3, Corning, N . Y . (Corning Glass Works) RAUCH; Harry W . (G) 415 W . Hickory St. East Rochester, N . Y. (Pfaudler Co.) RAUSCHER, Louis C. (G ) 2374 Geneva Ave., Glenside, Pa. (Philco Corp.) RAY, E. Harold (M ) B. F. Drakenfeld & Co., Inc. Box S19, Washington, Pa. RAY, John G. (G ) - Sylvania Electric Products, Inc. Cottage Place, Mineola, L. I., N . Y . RAY, Sushil 20-C, Southern Ave., Calcutta 26, India REA, Robert F. (W I) Stupakoff Ceramic & M fg. Co. Latrobe, Pa. REAGAN, Cornelius J. (S ) 532 Woodmnnt St. East McKeesport, Pa. (Van Ormer Brick Co.) REBCHOOK. Gregory V. (W ) Radio Materials Corp. 1708 W . Belmont Ave. Chicago, 111, REDLICH, Paul L. (M) Rotospray M fg. Co. 562 W . Washington Blvd. Chicago 5, 111. REECE, Charles W. 105 S. Miller St., Greer, S. C. REED, A. J. (S) S21 Woodbine St., Willard, Ohio (National Clay Pipe Manufacturers, Inc.) REED, Carl E. (G) 1410 E. Main St., Lancaster, Ohio (Sharp-Schurtz Co.) REED, George Clifton, III 2S1 Tenth St.. N . W. Apt. 48, Atlanta, Ga. REED, Leonard (J) 3, Grosvenor St., Canton Cardiff, S. Wales REED, Norman D . (SJI) What Cheer Clay Products Co. What Cheer, la. REED, Paul H. (R) 3101/ Fairmont Ave., New Castle, Pa. (New Castle Refractories Co.) REEVES, Harold (W ) Box 30, East Palestine, Ohio (Fitzpatrick Industries Inc.) REFRACTORIES INSTITUTE, THE (Avery C. Newton) First National Bank Bldg. Pittsburgh 22, Pa. REFRACTORY & INSULATION CORP. (A . S . Arwine) Port Kennedy, Pa. REGENBRECHT, Albert. Jr. (G) Sylvania Electric Products, Ine. Burlington, la. REGOUT, Joseph F. E. N . V. de Sphinx, Maastricht, Holland REID, Frank P. American Ceramic Society 405S N . High St., Columbus 14, Ohio Roster 67 '.ID, Harry F., Jr. (M ) McKay Co., 80S Grantly Rd., York, Pa. '.ILLY, Alfred `F., Sr. (W ) Evans Case Co., 21 East St. North Attleboro, Mass. IMER, John J. (W I) Keystone Ridgeway Corp. Gettysburg, Pa. IF ter (W ) t iomelia, Chicago 13. 111. (Uucago Pottery Co.) INKER, Arthur G. (R) Johns-Manville Sales Corp. 1530 Guildhall Bldg. Cleveland 15, Ohio INKER, Gerald E. (G) General Electric Co., Lamp Div. 1133 E . 152nd St., Cleveland 12, Ohio ISCHEL, Frank <W) 2733 Mayflower, Arcadia, Calif. (Dilectron Inc.) ISING, Joseph A. (M) St. Joseph Lead Co., Zinc Smelting Div. Monaca, Pa. SS, Max S. (E) 85 Howell St., Canandaigua, N. Y. 4D E , Harry F., Jr. General Ceramics Corp. Keasbey, N. J. IINGTON, Victor H. (GI) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. IMEY, G. Bickley (RF) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. IMEY, John G. (R) Richard C. Remmey Son Co. Hedley St. & Delaware River Philadelphia 37, Pa. IMEY, RICHARD C,, SON CO. (G. Bickley Remmey) Hedley St. & Delaware River Philadelphia 37, Pa. PES, Paul E., Jr. (BJI) 452 Mitchell Dr., Page Manor Oay "fl, Ohio Ur 'States Air Force) FREvV, J. Harvey (S) 11 Linden Park St., Roxbury 20, Mass. Herman G. Protze) OUF, Leonard J. (R) 42 Church St., Youngstown, N. Y. Titanium Alloy Mfg. Div., lational Lead Co.) 5KERS, Richard H. (W I) 5 Adelaide Ave., Highland Park, N. J. American Radiator & Standard Sanitary Corp.) JBLIC STEEL CORP. Burton Longwell) 1423 Republic Bldg, leveland 1, Ohio IR, Margie K. 77 Carlisle Ave., Columbus 1 1 , Ohio American Ceramic Society) 4ING, Charles R. (R ) 15 Boulevard, Westfield, N. J. National Refractories Co.) HNG. George W ., Jr. (R l) 79'/i E. Main St., Frostburg, Md. 3ig Savage Refractories Corp.) CHE, Frank L. (W ) 159 Clinton Ave., Irvington 11, N. J. Reusche & Co.) *ER, Raymond (R ) ational Aluminate Corp. !16 W. 66 PI., Chicago 38, 111. OLDS. Harry M. (G) mite Co., Box 365. Sta. A. ilumbus, Ohio D S. James L. (GJ) 10 Springside Dr., Lancaster, Pa. '.adio Corp. o f America) ES, D-niel (D ) ite T rsity of New York liege- Ceramics, Alfred, N. Y. ES. Foster T. (W ) londaga Pottery Co. racuse 4, N. Y. 4, No. 10 (1955) RHODES, Frank R., Jr. Georgia Tech, Box 3141, Atlanta, Ga. RHODES, Fraser B. (W FI) 7134 Maple Ave., Madeira, Ohio (Briggs Manufacturing Co.) RHODES, Ralph E., Jr. (M ) United Clay Mines Corp. Oakland & Prospect Sts. Trenton 6, N. J. RHODES, Ralph R. (RFI) 1729 Powell St., Norristown, Pa. (E. J. Lavino & Co.) RHODES. William H. Box 827, Alfred, N. Y. RICCI, Edward Michael (RJI) 817 Main St., Dickson City, Pa. (Harbison-Walker Refractories Co.) RICE, George A. (W ) General Electric Co., Gen. Engr. Lab. Bldg. 37, Rm. 299-21 Schenectady, N. Y. RICE, Hal H. (W I) 17 W . 25 Oak Lane Dr., Oakdale Woods Bensenville, 111. (Armour Research Foundation) RICE. Murray J. (B) Box 155, Alfred, N. Y. (State University of New York, College of Ceramics) RICE, William H. (G) General Electric Co. Glass Technology laboratory 1133 E. 152nd St., Cleveland 10, Ohio RICH, Herbert W . (M) Box 435, Front Royal, Va. (Dominion Minerals Div., Riverton Lime & Stone Co., Inc.) RICHARD, Giulio A. Via Cernuscbi 1, Milano, Italy RICHARDS, Thomas Z. (RJ) 80 Maple St., Greendale Sta. West Boylston, Mass. (Norton Co.) RICHARDSON, R. C. (S) Lovell Clay Products Co. Box 247, Lovell, Wyo. RICHARDSON, Robert M. (K) 5530 Fifth Ave., Pittsburgh 32, Pa. (Ramtite Co.) RICHMOND, Joseph C. (E F I) 4415 Fairfield Dr., Bethesda 14, Md. (National Bureau of Standards) RICHTER. Charles J. (G) Box 275, Canfield, Ohio RICK, Clarence A. (R) 441 La Sierra Way, Gilroy, Calif. (Kaiser Aluminum & Chemical Corp.) RICKER, Richard W . (E l) Aluminum Co. of America Aluminum Research Labs. Box 772, New Kensington, Pa. RICKEY. Charles J. 200 Chapman PI., Elmira, N. Y. RICKEY, J. H., Jr. (R) Ironton Fire Brick Co. Box 536, Ironton, Ohio RIDDLE. Frank H . (W FI) 14 Upland Rd., Colorado Springs, Colo. (Champion Spark Plug Co.. Ceramic Div.) RIDDLE, Robert F. (G) 522 Bigham Rd., Pittsburgh 11, Pa. RIDGEWAY, Thomas J., Jr. (RJ) General Refractories Co. Morrisville, Pa. RIEGERT. Richard P. (I) Box 995, Alfred, N. Y. RIEPER, Gerald 394 Pammel Court, Ames, la. RIGBY, James E. (G) Blue Ridge Glass Corp. Kingsport, Tenn. RIGTERINK, Merle D. (B F ) Bell Telephone Labs. Murray Hill. N. J. RIIS. 'Asgeir (M) Robeson Process Co. 500 Fifth Ave., New York 16; N. Y. RIKER, Ltiu. 3401 Fra. El Paso, RILEY, Jam. 125 E. N (Row lane RILEY, Rogc 1774 Dan (Gladdin, RINDONE, ( Departme Pennsylva Universlt RINGEN, Ro Paul O. A Little Fal RISEDEN, 0 American Cherokee Chattancx RISPLER,- Z Palestine "Phoenicl Haifa, Is RITLAND, ) Research Corning, RITTER, Jos Adamstor Rolland ( Clarksbu RITTLER, I: Box 827, Alfred, > RITZ, Joseph Sylvania 83-30 Ke Kew Gar ROACH, H. i Americar Standard 40 W. 4i New Yoi ROBB, Rich;, Chaucer Pittsburg (United ROBBINS, I 8151/ . C. (L. H. 1 ROBBINS, I Rm. 4-0f Cambrid ROBBINS. 25 Ca* ROBERS 350 (Owe ROBERT! 419 P (Cmi ROBERT 3204 1 (Soul Corp. ROBERT 116 C Crest (Port ROBERT. Westv Box 3 ROBERT; 3008 (Ante Stand ROBERT Brock ROBERT: 906 0 Monti (Lapr. ROBERTS 101 St Laprai (Lapt ROBESO 500 I t T.) ; , Apt. 1 Jacksonville 6, Fla. ..s & Son, Inc.) .. Ccmcord, Calif. * Co.) Technology University .43 Center Ave. . can vv\ ; ks , Box 168 (C) dug Glass Works () '.wi s Div., Box 631 Va. i University V.G) ic i roducts, Inc. der. Rd. L. }., N-. Y. ..(or V : y Corp. , ym (k) 31 Edgewood Ave. Steel Corp.) (W ) >re PI., Venice, Calif. r C<>) O. s. lust, of Tech. ss. .. j 1 Worcester, Mass. s U. (G) Newark, Ohio ig Fiberglas Co.) ,'aggart (E l) J., Glen Ellyn, 111. V. ' IS ) . Richmond 22, Va. Aggregate is (X ) V 7, N . Y. ') Authority) ne (R) t: S:inducts DV. t- Calif. (E ).. V. !.. Louisville 5, Ky. :;il : r & i . rp.) on . (G) s Ci Inc., Brockway, Pa. >nd.w K. (S ) Y T; wer Bldg. , ( '..nada k \ d ile Co.) Kenneth (S ) St. ., t nada k ' Tile Co.) :E CO. ( 'Asgeir Riis) c., New York 36. N. Y. R oster 69 T Z t Orr n J-'. Jr. s Cif son College Station ROCK' . G ffory L. (R) 9; s . ;urwalk Blvd. ROUDABUSH, Henry L. (R) General Refractories Co. >, S c I 'ic* -s, Calif. 3201 Fruitland Rd. if )N CL. V PRODUCT CO. O \c Clay Products) Los Angeles 58, Calif. Robil in) Box 1070 ROC! M Ivin F. (RI) ROUDABUSH, Ned W . (R) . Stake : t-i Akron 9, Ohio Sr -ff St., Coming, N . Y. Gloss Works) 311 Candlewood Rd., Brootnall, Pa. (General Refractories Co.) N. F. ( ^rge (S) . Santa . c Dr., Denver, Colo, ( >mg ROGE , Thomas S. (MI) ROUP, Rolland (W FI) ison Bri k & Tile Co.) 37 Windom PI., N. W. ingtf>n. D. C. Globe-Union Inc. 900 E. Keefe Ave. N. Gilb- n C. (S) i. Clem on, S. C. V ( ' ers ! Sons) Milwaukee 1, Wise. Co! tre) ROG* t . V! vil L. (S ) n J k Co., Hebron, N. D. ROUS, William C , Jr. (B ) 4212 Bonnie Dr., Fort Worth, Texas . U - G. (E) . i-'ol son Labs, ROG \V liam R. (R) (Convair) . Cii nati 1, Ohio 1 ru ui Co. ROWF., Arnold E. (E ) N. I'cr* liurrill mi J a Co. Ltd. RO! ' .tr Div., Niagara Falls, N. ie: CM J. (I) 'ad- Engenharia Industrial R. R. 1, Nebo, N . C. ROWLAND, Davidge H . (W I) Porcelain Insulator Corp., Lima, N. Y. . Sto -on-Trent, England Ma-. i, 23,8 andar ROWLAND, Donald A. (W ) Phi l 'au! lrar.il 622 S. Morton St., Okmulgee, Okla. 1',S '., Australia T nison Pty. Ltd.) I E. (RI) -dienople, Pa. .1 . (S I) !vd., Alliance, Ohio loduct Co.) R O lj 1 ( RO.-;' HO- MK i'etcr Jan M, Baam, Netherlands T * He Fabrieken N.V.) , 'I as E,, III (R ) C : Brick Co. lit . Fort Wayne, Ind. T (W I) Electric Corp. (Oklahoma A & M College) , ROWLAND, R. W. (W F) New Castle Refractories Co. New Castle, Pa. ROWLAND, Richards A. (B) Exploration & Production Res. Div. Shell Development Co. 3737 Bellaire Blvd., Houston 25, Texas LATING, CO. ", Jr.) . (R) ''roduct Co. '. State St. m L. -ke, Deer River. Minn. 1 iston, K. Y. Chemical Corp.) . (MFI) ing Division '50 E. 56th St. o ) Corp. St., Baltimore 30, Md. n W .,Jr. (G) -., Corning, N . Y. : Works) 1 S. !, N. Y . OIF) Refractories Co. ink Bldg. 'a. . & T IL E CO. , r.) Rockford, la. RO' RO t RO RC RO Rt 1! R R R V lots Engineering Dept, rgh, Pa. a L. (M) tery Inc. It., Sebring, Ohio l> T. t Sparta, Ohio y A. (W ) tin Co., Golden, Colo. (G) t Breaker Co. Ave., Philadelphia 34, (!) & Co. rlstown. Pa. iobert H . (W J) 'File Mfg. Co., Box 71 , Ohio E. K. (W ) n St. cy, Calif. Co.) Ernst est. Marble Arch ., England nt) L, Jerome J. 'Umore St., Edwardsville, 111. KEL, George O. (R) mcrican Refractories n Buren, Chicago'5, 111. ROWLANDS, Robert R. (W I) Universal-Rundte Corp. New Castle V /C Plant, Box 1268 Mahoningtown, Pa. ROY, H . N. Indian Ceramic Society Dept, of Ceramics Benares Hindu Univ. Benares, India ROY, James W . (B) West St,, Lenox. Mass. (General Electric Co.) ROY, Rustum (B) Pennsylvania State University 221 Mineral Sciences Bldg. University Park, Pa. ROYAL CHINA. INC. (B. L. Miller) Sebring, Ohio ROYAL, Herbert F. (W F) 845 Pilgrim Rd., Birmingham, Mich. (Champion Spark Plug Co.) ROYAL COPENHAGEN PORCELAIN MANUFACTORY & THE FAIENCE MANUFACTORY ALUMINIA (Chr. Christensen) Smallegade 45 Copenhagen F., Denmark ROYER. Rene Ingenieur-Conseil (E.C.P.) 60, Rue D'lssy, Vanves (Seine) France H. (G) Glass Co. Ohio '. (S) , Box 394, Alton, 111. P J. (E) c , Ohio Inc.) 1* so F. (G) ri cy , S. A. rt , ; iterrey, N. L., Mexico T>'-' G I . !.. (W I) VI .nklinville, N . Y. P O P 'ovox Corp.) n la k e Bluff, III. v minerals & T.1 v) is Inc. . Va. CM) . West Orange, N . J. rk ft Daniels, Inc.) Y,, 0 \ '* ' l l `o r p . v-., Chicago 39, 111. (W I) ! . LEAD & 'PAR MINING CO. 'I. Cronk) Rosiclarc, III. . A. (R) ick Co., Box 765 erpool, Ohio Id W . (R FI) akhurst PI., St. Louis 12, Mo. ant) rd, II (E J) Kane, Pa. A. (G) Glass Works, Corning, N. Y. ' F. (RI) ne St* Johnstown, Pa. m Steel Co.) NY CRUCIBLE CO. nhnson) Robbins & Milnor Sts. hia 35, Pa. ria Avakian (D ) ntry Club Rd., Eugene, Ore. ity of Oregon) per D. (M ) er Rd., Grand Island, N. Y. Kir trie Furnace Corp.) X , Joseph J. (G) RUARK, A. E. (G) Dept, of Physics University of Alabama, University, Ala.- RUDD. Richard D. (M) Carborundum Co. 3335 W. 47th St., Chicago 9, 111. RUDOLF, Paul E. Stoneware Factory Embrach, Ltd. Embrach (Zurich), Switzerland RUGG. Ormund I. (G) 13615 Meyers Rd., Detroit 27, Mich. (Ford Motor Co.) RUGH, Kenneth A. (R) Garfield Refractories Co. Bolivar, Pa. RUH, Edwin (B) 1012 Vermont Ave., Apt. 2 Pittsburgh 34. Pa. (Harbison-Walker Refractories Co.) RUH, Robert 162 Diana Lane N. Fairborn, Ohio RUIZ, Jorge Martin (R ) . Amerex Ingenieros, S.A., Ixtaccihuatl 6 (Insurgentes & Aguascalientes) Mexico 11, D. F. RUIZ, Robert A. (R) ? Glass Works, Research Lab. 114 W. Home St., Vandalia, Mo. Corp., Sidney, N. Y. . Y. (Walsh Refractories Corp.) 1n55) . ft.- R oster 71 X. Richard M. (G) ' .vania Electric Products, Inc. Boston St., Salem, Mass. 4ORE, Murray, Jr. (M) ore & Munger Rector S t , New York 6, X. Y. F |B. (G) ia !>9, Habana, Cuba -neral Glass Equipment Co.) F, Samuel (R ) :ic Refractories, Inc. pie Grove, Fostoria, Ohio LL, Charles K. (RJ) '6 Access R d , Dayton 3, Ohio nght-Patterson A.F.B.) LL, Howard F. (E l) 8 Woodworth PI. towatomie H ills, Haze1erest, III. gersoll Products D iv , -g-Warner Corp.) LL, Lewis . York R d , Stony Stratford Iverton, Bucks, England LL, Norman Keith (R I) Longcorse Ln., Paoli, Pa. chard C. Remmey Son Co.) LL, Ralston, Jr. (X F I) >t. o f Ceramic Engineering Lord Hall, Ohio State University umbus 10, Ohio LL, Robert G. (G) R. '2, Granville, Ohio vens-Coming Fiberglas Corp.) ESS IRON C O , LTD. Whitaker) Trico Works ghley, England D. vard Curran Engineering. Ltd. diff, Wales Joseph D. (G) 8 Middlesex D r , Toledo 6, Ohio bbey-Owens-Ford Glass Co.) Larry D. : E, Gig Harbor, Wash. IA' 'avid A , Sr. (W ) N. ^hington St. in, Onto , Robert J. E. McCormick A v e, Apt. 2 :e College, Pa. Chester M. 449, Mattapoisett, Mass. D. H. W. (W ) rs Porcelain Co. Ninth S t , Golden, Colo. '.RS, Gerald F. (B) ional Bureau of Standards . 9.1, Washington 25, D. C. EW ITCH, Eugene (R) rfott C o , In c , Little Falls, N . J. S Patricio (E ) queles & Esmaltes S. A. irtado Postal 371 iterrey N . L , Mexico R, J. Richard (E JI) j Pleasant Valley Rd. ma 29, Ohio rfection Industries) , Edward (G) negie Inst, of Tech. enley Park, Pittsburgh 13, Pa. Edward (GJ) io Corp. o f America V Bldg. 55-2, Harrison, X . J. Hajime ilty of Engineering tanashi University oyanagi-cho, Kofu-City, Japan tS, ' \tes |> (G ) >atos 625 ;ico 10, D, F , Mexico lriera Mexico, S.A.) URY, William R. (W ) don R d , Fayetteville, N . Y . ondaga Pottery) t, N o. 10 (1955) SALTM AN, Donald (R ) 1831 E. Second St. Long Beach 2, Calif. (North American Aviation, Inc.) SAM M ONS, Frederick C. (R ) General Refractories Co. 3247 Fruitland Ave. Los Angeles 58, Calif. SAM PSO N, J. Leonard (G) Mahoning Glass Works General Electric C o, 403 N. Main St. Niles, Ohio SAM SON, A. William (G) B. F. Drakenfeld & Co. Inc. Box 519, Washington, Pa. SANBORN, Paul H. (W ) 2514-- 23rd S t , Parkersburg, W. Va. S A N D , Reuben (W ) 8 N . Blount S t , Madison 3, W ise. (Ceramic Arts Studio) SA N D E R S, Clyde A. (W ) American Colloid Co. Merchandise Mart, Suite 813 Chicago 54, 111. SA N D ER S, Herbert H. (D ) 17926 Daves A v e , Los Gatos, Calif. (San Jose State College) SAN D ER S, Loren D . (I) 1233 Delaware A v e , S. W. Canton, Ohio SANDERSON, K. W. John G. Stein & Company, Ltd. Bonnybridge, Scotland SA N D F O R D , Per Johan Folke Chalmers Tekniska Hogskola Gibraltargatan 5 j , Goteborg, Sweden SA N D M E Y ER , Karl H . (R ) 908-- 87th S t , Niagara Falls, N. Y. (Carborundum Co.) S A N D S , George Imperial Smelting Corp. Avonmouth, Bristol, England SANFORD, Elbert A. (E) 375 Oakridge D r , Rochester 17, N . Y. (Pfaudler Co.) SAN MIGUEL BREWERY GLASS FACTORY (A. Villa-Abrille) 132 Aviles, Manila, Philippines SA N T , John W . (M ) Universal-Rundle Corp. New Castle, Pa. SANTOM IERI, S. Lewis (RI) Box 8, Botkins, Ohio fBotkins Engineering) SA R AK AUSK AS, Raymond (B ) National Carbon Research Labs. Box 6087, Cleveland, Ohio SARRAF, Edward M. (R) 20001 Laurel A ve. Rocky River 16, Ohio (Harbison-Walker Refractories Co.) SA U E R E ISE N , C. Fred (M ) Sauereisen Cements Co. Sharpsburg S ta , Pittsburgh 15, Pa. SAULS, J. B. (MI) Funkhouser C o, 138 W. Washington St. Hagerstown, Md, SA U N D E R S , Alfred C. (R I) Eckhardt R d , Hamburg, N. Y. (Electro Refractories & Abrasives Corp.) SAUNDERS, Hollis S. (E) O. Hommel C o, Box 475 Pittsburgh 30, Pa. SAUNDERS, R. H. (S) Charleston Clay Products Co. Box 349, Charleston 22, W. Va. SA U N D E R S, Richard A. (S ) 2626 Larwood D r , Charleston, W . Va. (Charleston Clay Products Co.) SAVELL, Fred H. (M) Western Talc Co. 1901 E . Slauson Ave. Los Angeles 58, Calif. SAVIOLI, Francesco Istituto Siderurgico Finsider Villa Brignole-Corso F. M-, Perrone, 24 Genova-Comigliano (Italia) saw a: K yo:, >, Japan SAW YF Ce. Market St. Za, SAXE, 1 V, > ester 5, Mass. SAXOf K \ JS (Ge * ) Box 100 Sa* SCALEE 456 ) )hio (Nai arch Lab.) SCHAA. (WJ) 84 1 (Syl 1- SCHAA :ik i abylon, N . Y. i ducts Inc.) >V) B .F :e Inc., Box 51! Wa n. SCHABa r . -,E) Eric 3120 i SCHAF.) , Pa. v .) 327 . . Id (A. t : Ur . Gern VOI it, Mich. . iV . O; .) SCHAF, i ! Ma That, /SI i land (Toi, e l v. G.) SCHATZ , H Arcl. ) , *i. Inc. Casf port, N. J. SCHAU: 1 vs ) 1253 O- iedo 12, Ohio (Ow il: SCHELL I al 2227 an (Arm Rt ( . i wyn, 111. lundation) SCHIEF) .E, (E) 4501 ton -Sifield Acres Loui: 5, (Ger ' SCHIEN 138 1.. ) .1 I) me, N . J. (Uni ,i Corp.) SCHIFFEKL 1 Hayi, s cl. Kokte .o lit, SCHLECM il Rua X r Sao F ] 1.. r. (R ) Co . Box 746 1 . 1 .. 266-Sala 41 (Du, i & Co SCHLEH Brock (GI) i nc. Lape! SCHLOEM Minci ; 1 TueVii c Tuebi; i it of Univ. r 10 11. SCHLOT/: a i L R. (R) R.R. 2. in (Corn .1 SCHMID, i Arthu. 'o V. Y. > 0 . ) : o. 1414 In. , 239 Fourth A Pittato SCHMID, i 9 Pali, . . (R) W allin., a i e County, Pa. (Alun,: of nerica) SCHMIDT Ancho, !- ') >s Corp. Lana s: SCHMIDT, Ceran, Resca, ai ) Electric . nulls Sehen,, , /i SCHMUNK, ot. W ) 70 Dun, a Toronto , (': uada (Stand., ! S ,ry & Dominio, R. or. Ltd.) SCHNEIDE : 4512 S> . ov- y H. (E) , : niisville 13, Ky (Genera Sait ' C ,, . ) SCHNEIDE : M P , Jr. (S ) 2648 Lc. -a 11, La. (St. Jot rie oir.s, Inc.) R oster 73 EI'IF.R, Sa- `.36 ' ncer` I n\ v 1 Bur H: JER, .'S' Ni, Sho .if jee 17 3K Jnion 't.M JB, an ip Ceran * ox 338, Si- phi- ' is 19, I' 'a, ?- 1 T ,ef ' -tec * II ur Kcs ! lois Inst nol-vy 1 t - <3:! 1 * ic ) : . '>. y . iv el J-. Jr. (RJ) , West H yattsvillc, Md. u of Standards) win W. (W I) -ni Ave. ''isc. C.) rt A. (R ) Service Co. rd Sta. sio n (RI) .. M-xico, Mo. - 1 ick Co.) ( .F I) ^dation 'Technology -, Chicago 16, 111. J) . arten, Pa. ) sT. y . ' New York, i r; r U ; tv ; V' i (S )` -!e Co. la. !andars r\ . Netherlands It le Ijsel) ) i Butler, Pa. <1 J ice Co.) j, - '<) lion, Ohio t. 1 [' ; r 2 : ? ( / i ( t ! cd aies ingt n, N. I r\ And f an .ni- > . fDF) - Co.) ' (D) Ohio Jr. (G ) i ing, N . Y. FI) f R) N- J- eut Co. 'o-i 4, Ohio > >; c o .) r Co.) Foundry Co. il as >a. S. A. \ j i 1. l SCHULTZ, John, Jr. (EJ) Battelle Memorial Institute .Vi5 K ing Ave., Columbus 1, Ohio SCHULZ! . Robert H. Adva: ced Vacuum Products, Inc. 2i: Li-crty St., Stamford, Conn. SC H U M / CHER, William G. (E ) r 56 N. Glenwood Ave. (.iiicaco 40, 111. (National Cylinder Gas Co.) SC H U RECHT, II. G. (W F I) oan ion Spark Plug Co. 1 .15 utler Ave., Detroit 11, Mich. SCH RT . I). 1). (G F) tr- Schurtz Co. !- 3 Lincoln Ave. ! nc ter, Ohio SCH ' Leon B. (R ) . Home St., Vandalia, Mo. a :son-Walker Refractories Co.) SCI! A rZ, Bernard (B I) I wood Dr., Bradford H ills !, Downingtown, Pa. -iiional Resistance Co.) SCI' Jerome W . (W ) s i lirastoff Products, Inc. W . Olympic Blvd. nvelea 64, Calif. SCI' ' TZ, M. A. (B I) L, Aeronautical Research Lab, 1 .. >.',1c Patterson AFB, Ohio SC! ZW ALDER, Karl (W FI) rlr Plug Div., Mr.-.ors Corp. r. . Mii-li. SCI L. H M IT , William K. (R ) al ef- ir.toiics Corp. 1 y -t., St. Louis 7, Mo. SC ' F El , Howard V. (M ) er Equipment Co. ge Rd., Cleveland 9, Ohio SC I. , Theresa A. (G) 5 I f . . Elmira, N. Y. iss Works) SC' ' .-ns-Emst 1 a-stcinshuttenkunde .-' -r' trabe 5, Germany SCO ' V. (W ) ei ric Co. Inc. nine Station li 111. s a T, v R. (G FI) IV c SCO -mb Optical Co. 1 St., Rochester 2, N. Y. u (RI) . -'''10 Menvin Ave. . ?, Ohio SCO - (GI) 1 Ft., Millville, N . J. ' rk Co.) SCO I (S) T.ibrary sa i scr SE/ SV. A SEA n i in S !A S VA 'V) ttic Co. Inc. t ' Ave. 4, Ind. > J") Olmstead Falls, Ohio nee A. , > c S. A. i ;-r '.'o. 208 a-.tie, Vienne) France Edward C. (E ) I. -` It. Gemens, Mich. i'., kange D iv.) . L) i -carawas St. Ohio Co.) 'an W . (B ) - cif Mineral Technology i v of California 1 > -1, Calif. Itied B. iflc, Skircoat Moor Rd. oik, England 0 SEARSON, Leslie James Oakes & Co. (Riddings) Ltd. Jacksdalc, Notts, England SEATON, Max Y. (RF) Food Machinery & Chemical Corp. 161 E . 42nd St., New York 17, N. Y. SECKMAN, Harry D. (W I) 220 W . Third, Peru, Ind. (Square D Co.) SECORD, Robert N . (W ) Godfrey L. Cabot, Inc. Research & Development Dept. 38 Memorial D r., Cambridge 42, Mass. SEDENKA, Anthony (E) 1086 Magnolia Dr., Colonial Heights Washington, Pa. (B. F. Drakcnfeld & Co., Inc.) SEEGER, Erwin W . (E ) Norris-Thermador Corp., Box S8384 Vernon Branch, Los Angeles 58, Calif. SEELEY, E. L. (W ) 800 Lotus Ave., Chester, W . Va. (Harker Pottery Co.) SEEM ANN, Wilhelm Pipersgatan 3, Stockholm, Sweden SEGELER, C. G. (M ) American Gas Assn., 420 Lexington Ave. New York 17. N . Y. SEIDEL, Joseph (W ) 1255 E. Orange St., Lancaster,. Pa. (Radio Corp. of America) SEIPEL, Robert B. (G) Blue Ridge Glass Corp. Kingsport, Tenn. SEITZ. Wolfram (G) Glass Containers Inc. 3601 Santa Fe Ave. Los Angeles 58, Calif. SELLERS, George A. (R ) 315 E. Crescent Ave., Elmhurst, III. (Plibrico Co.) SELLERS, John T . (R I) 52 Broadway, Jackson, Ohio (Durex Refractories Co.) SEMMELMAN, John O. (W I) Dentists Supply Co. o f N ew York College & Grantley Ave., York, Pa. SEMPLE, William A. (R ) Aluminum Co. of Canada, Ltd. Gen; Tech. Dept., 1770 Sun Life Bldg. Montreal, Que., Canada SENK , Johann Vienna XVII Dornbacherstr. 29, Austria (Radio Fabrik IngdenPorzellan Fabrik) SENTERS. Walter (S ) W a sh in g to n B r ic k & L im e Co., B o x 2 1 9 8 Spokane, Wash. SEPHTON. H. J. (G) Dominion Glass Co. Ltd. Chappie St., Hamilton, Ont., Canada SERVICE PORCELAIN ENAMEL, INC. (Paul S. Cecil) Brill & Christie Sts. Newark 5, N. J. SERVIS. Donald H . (W ) Robertson M fg. Co., Box 848 Trenton 5, N . J. SESI.ER, E. Clyde, Jr. (S ) Summit Pressed Brick & Tile Co. 13th & Erie, Pueblo, Colo. SETCHEL. Hayden Merritt (G ) 105 Tenth St., Streator, 111, (Owens-Illinois) SEVERIN. Harold Box 787, Alfred, N. Y. SEVERSIK E, Carroll L. (W ) 12 Bridge St.. Frenchtown, N . J. (Frcnchtown Porcelain. Co.) SEYMOUR, Samuel L. (G ) 125 Reed St., New Kensington, Pa. (Pittsburgh Plate Glass Co.) SHAFFER, E. F. (G) Ohio Power Co., Newark, Ohio SH AFFER. Paul C. (G) 85 Chapel St., Seneca Falls, N . Y. (Sylvania Electric Products, Inc.) R oster 75 I,.Chunilal P. ombay Potteries & T iles Ltd. nited India Bldg, ir Pherozshaw Mehta Rd. art Bombay, India EK, Peter D. 5 Lowell, Waltham, Mass. D, ^rrol B. (G) 5 olds Ave., Coming, N . Y. Jo, i Glass W orks) D, Rodger L. (E ) 4 Reynolds St., Apt. 20 akville. Ont., Canada 'erro Enamels Ltd.) DS, Everett H . (E ) 116 Grenham PL, Rockford, 111. ). Hommel Co.) iER, Herbert J. (R ) amtite o,, 2563 W . 18th St. hicago 8, 111. IKS, Douglas banks 8c Co. Ltd., Victorian Pottery arrhead, Near Glasgow, Scotland INON, Harry F . (E ) nited States Steel Corp., Rm. 2414 15 William Penn PI. ittsburgh 30, Pa. IRO, Howard (B I) 110 East Ave., N ew York 62, N . Y. Yard Leonard Electric Co.) iDLOW, L. Russel <WI) adio Corp. of America arrison, N. J. .P, Donald E. (G F) ibbey-Owens-Ford Glass Co. 701 E. Broadway, Toledo 5, Ohio P, E. W. (RI) 1 N . High St., Jackson, Ohio -awrence Refractories Clay Co.) :PE, Edwin F., I l l 355 Kennedy St., Philadelphia 37, Pa. fER, Richard C. (R ) 17 Bear St., Syracuse 8, N. Y. Cowles Chemical Co.) 'E r ' W . CGF) 30 jourth St., Coming, N . Y . Coming Glass W orks) V. Anthony E . (S ) atco Corp., 327 Fifth Ave. ittsburgh 22, Pa. V. Clarence F. (W I) ox 551, Antioch, III. Pickard, Inc.) V, L. I. (X I) lub DelMar, Santa Monica, Calif. Consultant) V, Myril C. (M F I) 53 Gates St., Philadelphia 28. Pa. Asbestos Textile Institute) Y, Ronald H . (S ) .. E . Shaw Ltd., Box 996 lalifax. Nova Scotia fN A , Michael (S ) 06 S. Railway St. wift Current, Sask., Canada Perry Brick & T ile Co.) VRER, Walter L . (R ) artley Crucible & Refractories, Inc. ox 358, Trenton 3, N . J. VRER, Wayne B. (R ) 7 Fairview Rd., Paoli, Pa. Foote Mineral Co.) VROUSE, Lee A . (W ) 26 Highland Ave., Wadsworth, Ohio Ohio Brass Co.) '-HAN, Robert W . (M J) 020 Cypress A ve., Findlay, Ohio TS, Herbert D. (R I) 41 Bedford Ave., Columbus, Ohio Battelle Memorial Institute) IE E ' !x Alexander (S ) 'Alfred, N . Y. State-<7niversity o f New York, College of Ceramics) -DON, R. S., (E ) 215 Wilson Ct., St. Joseph, Mich. Whirlpool Corp.) .34, N o. 10 (1955) SH EL L, Haskiel R. (B ) U . S. Bureau of Mines Electrotechnical Experiment Sta. Norris, Tenn. SH EL LEY , C. B. (R I) General Refractories Co. 1520 Locust St., Philadelphia 2, Pa. SH EN A N D O A H SILICA CO., INC. (Herreld D. Thropp) 190 W. State St., Trenton 8, N. J. SHENANGO CHINA, INC. (Geo. B. Zahniser) New Castle, Pa. SH E P H E R D , John F. (E l) Shepherd Chemical Co. 2803 Highland Ave. Norwood, Cincinnati 12, Ohio SHERK, Donald (S ) 218 Dalton Dr., Buffalo 23, N. Y. (National Gypsum Co.) SHERRILL, Ernest (M) Westwood Ceramics Supply Co. 11250 W . Pico Blvd. Los Angeles 64, Calif. SHERRILL, Robert R. ( E l) 425 Canyon Dr., Glendale 6, Calif. (Bulwark Corp.) SH ERW O O D. Robert F. (W F I) 41 W exford Rd., Dewitt 14, N. Y. SHEVLIN, Thomas S. (R I) Engineering Experiment Station Ohio State University Columbus 10, Ohio SH IE L D , Richard Blalock Apts., Apt. 5, Kilgore, Texas SH IFF, Tom (R) Villa Ridge Addition, R. R. 2 Godfrey, 111. * (Laclede-Christy Co.) SH IM A D A , Hachiro Shimada Glass Laboratory No. 2867, 1-Chome, Sanno Ota-ku, Tokyo, Japan SH IM A D A , Kuro Toyo Glass Co., Ltd. No. 47 Shimo-3-Chome Fukushimaku, Osaka, Japan SHIM ER, J. B. (GI) Knox Glass Co. Knox, Pa. SH IM M AN, Norman C. (W ) 2348 Ventura Dr., R. R. 4 Walled Lake, Mich. (Champion Spark Plug Co.) SH IPE, Paul J. (R) Moraine Prod. Div., General Motors Corp. 1420 Wisconsin Blvd., Dayton 1, Ohio SHIPLEY, R. A. (S) Natco Corp.. 227 Fifth Ave. Pittsburgh 22, Pa. SHIVELY, R. R. (GF) 83 Woodland Dr., Pittsburgh 28, Pa. (Consultant) SH IV E LY , Robert R., Jr. (G) 2539 E. 11th PL, Tulsa, Okla. (O lin Mathieson Chemical Corp.) SHOEM AKER, George W. (S ) Arketex Ceramic Corp., 6 N. Walnut St. Brazil, Ind. SH O FFN ER , James E , Jr. 15700 Biltmore, Detroit 27, Mich. SHONKW ILER, Francis P. (RI) 2516 Milford Dr., Pittsburgh 34, Pa. (Harbison-Walker Refractories Co.) SHOOK, Thurston W . (X ) 2353 Cambridge Blvd. Columbus 2 1, Ohio (Harrop Ceramic Service Co.) SHOOK, William B. ( I ) ........ 434' Chatham Rd., Columbus 14j Ohio SHOOT, Lyle E. (BJ) 7064 Eastern Ave. Washington 12, D . C. (Diamond Ordnance Fuze Lab.) SHOPHER, Sterling D. (RI) 415 E . Monroe, Mexico, Mo. (Mexico Refractories Co.) SHORTER, A. J. Bonnybridge Silica 8t Fireclay Co. Ltd. Bonnybridge, Stirling, Scotland SHOUT i: Elllh. 333 1 g Co. , Hartford 2, Conn. SHREM1 227 .V . (Lav. (R) ople, Pa. nelories Co.) S H U i./.):. ) Vv'aui > SHUM AN .U V Pol;..: Irving h-e H SICKER, :a, i Box 8 -, A. a Co. New York. N. Y. . Y. S1DWE1 Jo; H. C pin'1000 rst Ciuci. i Inc. Bank Bldg. SIEBER, ul Corni o i .s, Albion, Mich. SIE PE HI Own -oil ./crglas Corp. New;. , Or SIEGWA ), Clj 816 C -inby A (Rob son Clay (RD t oostcr, Ohio . ducts Co.) SIEKM A. N . J h. Alumi; mi 52 N. \ch 1R) b .iierica Chicago 11, 111. SIEVF.R r u 833 ( ,jo. (Cla. 10 :>.m Mateo, Calif. !.. 8c Co.) SIGWAI 732 i Moi^ (Sent Ha i chui.si ttown, a Glass . <G) Va. CV ) SIK E S, J. nes W . ( v\ ') Florid Tilt- 1 du rics, Inc., Box 451 60.- 1 spec , .ikeland, Fla. SILK, M- , Bi are Ltd. England SILVF. Ur 25. l'i SILVI; Ov 17 tn <r (G PI) ttCmrgh r '.earning B. (GFI) unical Center Ave., Toledo 1, Ohio SIMAV Ci Be Bu a S. A. G.R. .entina SIMCC K "C Mi Si. (A. . SIMIS O'. T' i,. Ave. all Co. Ltd.) ) i f rglas Corp. SIM MEN, 96! 1 (F.'irl ) , Trenton 8, N . J. SIMM INC, Glasir. V ax jo, txjo, Smedjegatan 3 SIMMON; 455 S. (C u is SIMM o n : Fcr io 4130 i (M ) .ve., Pasadena 5, Calif. (E) i national D iv. Cleveland 5, Ohio SIMON, A 8530 \ (Glatit1. SIM ON Db (F. R. N. Sun Dayton St., Sunland, Calif. i & Co.) W HITE CO. Negley PL SIMOOS, . 9186 1 Tempi (B. F. '1. Jr. (W I) i IT. .if. V Co.) SIM O N SE Compa Rua b Sao Vix .1.1 C. la de Mineracao h4-7* Andar . il Roster 77 ;!' N SEN , Victor G. ramica Sao Caetano S. A. ' Postal 278, Sao Paulo. Brazil ! SON. Frederick H . " 2 34th Ave., N . W ., Seattle 7, Wash. : SON. Harold E. (G FI) itc University of New York, 'pee of Ceramics, Alfred, N. Y. ,IN, John A. (S) .'B. McFarren Ltd. treetsville, Ont., Canada ' John D,, Jr. (S ) e Brick Co., Box 471 N . C. .! Robert R. (M I) sage Ave., Inglewood, Calif. i Refractories Co.) lx (F) era-- House, 46, Castlemaine Ave. ouih ~ oydon, Surrey, England Const >nt) )' Pedro M. Sao Car! ano S. A. Vista 8 6* <>, Brazil rge.CE) itreous 'Enamel Co. arragai'.:ci: Ave. S, 111. 5' t h . (En Ave., Ashland, Ohio rpi) rdon H. ( ? ) S t Hat, AHa, Canada Hat Br & T ile Co., Ltd.) $' c. F. vV) '.svili", ' 'Mo :. lien at.i ?ies Co.) hn -K.. (E ) M.t I V Mon, Mass. <! * . t -) er K. (M ) Ion 1' (1 33, 1 .f. 1 Minerals Co.) : i) Apt. 203 i 1.1 ..idi 1 'atory) 1 S. Rd., ' 1 .nington 3, Del. I A ne" J) - nn r Glass Co. s Angeles 7, Calif. fG) Co., Box 15 H 'as Corp. 1 , ',io i 407 Main St. 'iling Co., Inc. J) .amon H ill FA) : Div. r , unpenfabrieken TS! i"g,N . Y. 0.) W. A. Deringer) vaukee 1, W ise. SM 'T H , Arnold N . r & R Boote, ;Ltd. lurslem, Stafford, England SM IT H , C. A . (R F I) Mexico Refractories Co. Setter Refractories Bldg., Mexico. Mo. SM ITH . Dudley C. (G) Oakdale Dr., Millville, N. J. (Kimble Glass Div., Owens-Illinois) SMITH, Earl R. (G) Mellon Institute, 4400 Fifth Ave. itisi ureh 13, Pa. S V T l. Ellis E., Jr. (B ) 'cmhardt Dr., Snyder 21, N. Y. W'- taker, Clark & Daniels, Inc.) SV H. Jail P. (G) *rrr*ng Glass Works, Corning, N . Y. SV H. G. Sherwood >C| '.ment of Ceramic Technology e r 1 ylvania State University n:V isity Park, Pa. s v r ilarlan D . (R ) ville Fire Brick Co. ville, Mo. S ' Harry W . (W ) in ien H all, Chattanooga 5, Tenn, i -.in Lava Corp.) c ! liiert A. (D ) vhteler & Co., Box 750 verpool, Ohio S i'ilard A. (W I) stnut Ave., Metuchen, N . J. n md Radiator Co.) s* ward J. (R ) 'win Ave., East Paterson, N . J. tni Alloy M fg. Div., 1 Lead Co.) s . Russell (M ) 7, East Liverpool, Ohio Il Chemical & Supply Co.) s mes Fireclay Products, Ltd. . George St. > C. 2., Scotland s mes N ., Jr. (D ) A lacn," R. R . 5,' New Bern, N'. C. A laen Gardenware) c T . Ernest (X ) 'vena Ave., Sarasota, Fia. i-I-Cast Corp.) c; hn Jacob (G ) acific Ave., Brackenridge, Pa. nigh Plate Glass Co.) S . Ryan (W ) is Co.( Inc., Fairfacts St. 8, N. J. c il W . (R ) Annex Sta., Cincinnati 14, Ohio f Taylor Sons Co.) c. ueth E . (D F I) ni Art Clay Co. . 16th St. lis 44, Ind. c. <nd (S I ) Darlington, Pa. Hlling D iv. of Central ial Co.) c er W . (W ) , McBean & Co. s Feliz Blvd. des 39, Calif, oh Ogden (G ) mit St., Salem, N . J. : Glass W orks) c. Hard D . (E ) 'Merwood Ave. s n CA (i eland 12, Ohio orp.) hard E. (G) :r. St., Manchester, Mass, a Electric Products Corp.) Hard M. (R ) rca St., Corning, N. Y. ; Glass W orks) : rt A. (E ) S ...Ion, Kingston, Pa. 'o.) SMITH, R. K. (R) 149 Reynolds Ave., Corning, N. Y. (Coming Glass Works) SMITH, Rowland D. (G ) 12 Woodlawn Ave., Coming, N . Y. (Corning Glass Works) SMITH, R. Thomas 206 W. Ninth St., Rolla, Mo, SMITH, Rufus J., Jr. (S ) 306 S. Jefferson St,, Goldsboro, N. C. (E . I. du Pont de Nemours, Inc.) SMITH. S. N. (E ) 516 S. Delphia Ave., Park Ridge, 111. (Ferro Corp.) SMITH & STONE, LTD. (T. W old) Georgetown, Ont., Canada SMITH, T. Sydney Brightwood, Va. SMITH, Walter F., Jr. (M ) United Clay Mines Corp. 101 Oakland St., Trenton 6, N . J. SMITH, William E. (G) 5030 Janet, Sylvania, Ohio (Owens-Illinois) SMITH. William L. (W ) Harris G ay Co., Spruce Pine, N . C. SMOCK, Alden W . (G) 41 Euclid Ave., Columbus 1, Ohio (North American Aviation Inc.) SMOKE. Edward J. (W ) 11 dgcwood Rd., Metuchen, N . J. (Rutgers University) SMOOT, Jack M. (D I) Chamblee, Ga. (Dogwood Ceramics) SMOTHERS, W. J. (B) Ohio Brass Co., Barberton, Ohio SMYLY, James P. 1924 Ashland Ave., Charlotte, N . C. SMYTH, Harold T . (G) New Jersey Ceramic Research Station Rutgers University, New Brunswick, N. J. SNELL, Richard G. (G) 1717 Calumet Ave., Toledo 7, Ohio (Libbey-Owens-Ford Glass Co.) SNOW , L. James (S ) MifBinville, Pa. (Alliance G ay Product Co.) SNOW , Roland B. (R F ) U . S. Steel Corp. 525 William Penn PI., Rm. 2413 Pittsburgh 30, Pa. SNYDER, Ernest B. (R I) Wheeling Steel Corp. Steubenville South Plant Steubenville, Ohio SNYDER, Nicholas H . (W ) 531 Maple Ave., Trenton 8, N . J. (Rutgers University) SOBON, Leon E. (B ) Box 787, Alfred, N . Y SOCIETA ITALIANA REFRATTARI MARCHERA AZIONARIA (Domenico Giacomclli) Via Industrie 52, Casella Postale 308 Marghcra, Venice, Italy SOCIETE CERAMIQUE (Comte L. de Meeus d'Argenteuil) Hoge Barakkenstraat 6 Maastricht, Netherlands SOCIETE FRANAISE DE CERAMIQUE (Y . Letort) Service de Documentation 23, rue de Cronstadt Paris X V ", France SOCIETE PRO FESSIO NNELLE DES PRODUITS FRANAIS DE TERRE CUITE (M. Jacques Labansat) 23, rue de Cronstadt Paris X V , France SOCIETY O F GLASS TECHNOLOGY (R . W . Douglas) "Thornton" Ilallam Gate Rd,, Sheffield 10, England SOCONY-VACUUM O IL CO. (W . B. Stevens) 26 Broadway New York 4, N. Y. R o ster 79 5ERSTRUM, William K. (S I) 328 Fox St., Aurora, 111. (Structural Clay Products Research Foundation) -OM ON, Earl (R I) 1 Boston Ridgc Rd. C rd Park, N . Y. (Electro Refractories & Abrasives Corp.) LVAY PROCESS DIV., ALLIED CHEMICAL & DYE CORP. Librarian, Box 271, Syracuse 1, N. Y. M ANY, O. M. Hindusthan National Glass M fg. Co., Ltd. 2, W ellesley PI., Calcutta 1, India MERS, A. J. Borax Consolidated, Ltd. Borax House, Carlisle PI. London S .W .l, England MMER, Alfred (W ) 89 Fairmount Ave., Kingston, N. Y. (Ferroxcube Co. of America) MMERVILLE, J. L. (GI) 283 Atlantic St., Bridgeton, N . J. (Owens-Illinois) N D L E S, Merrill C. (W ) Paden City Pottery Co. Paden City, W . Va. N EN SH IN E, Lewis (RJ) 1262 Empire St-, Camden 3, N . J. ( U . S. Naval Boiter & Turbine Lab.) >NTZ, Arthur (R I) 8054 S. Crandon Ave., Chicago 17, 111. (U . S. Steel Corp.) >SMAN, Robert B. (Honorary, BFI) School of Ceramics, Rutgers University New Brunswick, N. J. >UTH. Furman. Jr. (R) Lava Crucible-Refractories Co. First National Bank Bldg. Pittsburgh 22, Pa. JUTHERN POTTERIES, INC. (. y . Kibler) Box 279 t i, Term. )W M N , Harold G. (R ) 1480 Grand Blvd., Schenectady, N. Y. (K nolls Atomic Power Lab., General Electric Co.) X M AN, Edwin J. (I) Box 117. Alfred, N. Y. 'A IN , Richard W . (G) 2315 Drummond Rd., Toledo. Ohio (Owens-Illinois) PANGENBERG, William C. (M I) 228 Maple Ave., Rahway, N . J. '(Edgar Plastic Kaolin Co.) PARKS, Edgar W. (W) 406 Unaka W ay, Erwin, Tenn. (Southern Potteries, Inc.) PARROW, Paul F. (R) 610 Shady Dr. E., Pittsburgh 28, Pa. (Norton Co.) PEERS, Samuel F. (D ) Evans Case Co., 21 East St. North Attleboro, Mass. PEIL, Sidney (G I) Johns-Manville Research Center Manville, N . J. PENCE, C. F. (E ) 1004 Grandon Ave., Columbus 9, Ohio (Chicago Vitreous Corp.) iPENCE. Harold I. Klabin Irmaos & Cia Av. Suburbana, 5472 Meier Rio de Janeiro, Brazil SPENCER, Charles D. (GF) 2113 Taylor Rd., Cleveland 12, Ohio (Lamp Dept., General Electric Co.) PENCER-STRONG, G. H. (EFI) IP" Witherspoon Rd., Baltimore 12, Md. ):o Corp.) SPEN JER, H . H . (G ) General Electric Co. Lamp D iv., Glass Technology Lab. 1133 E. 152nd St., Cleveland 10, Ohio SPERRING. Richard F. (GJ) 201 Taylor, Crystal City, Mo. (Pittsburgh Plate Glass Co.) !VOL. 34, N o . 1 (1955) S P IN K S , H . C,, CLAY CO., INC. (R . B. Carothers) Box 829 Paris, Tenn. SPIN N ER , Sam (G) National Bureau of Standards Washington, D. C. SPIR ES, Stephen T. (R I) North American Refractories Co. Mt. Union, Pa. SPL A N N , Mary Theresa (G) Coming Glass Works, Corning, N. Y. SPOERRY, Henry J. Schmidheiny & Co., Ltd. Heerbrugg, (St.G.) Switzerland SPRIGGS, Richard M. 408 W. Nevada St., Urbana, 111. SPRO AT, Ira E. (W F I) R. T . Vanderbilt Co., 230 Park Ave. New York 17, N. Y. SPURCK, Richard F. (W ) Machlett Labs., Springdale, Conn. SQ UARE D CO. (Ralph E. Hanna) Molded Insulation D iv., Peru, Ind. SQUIER, Arthur A. (S ) 1616 Walnut St., Philadelphia 3, Pa. (Distributor) STAATLICHE PORZELLAN MANUFAKTUR BERLIN (Gerhard Muller) Hartmannstrasse 1-3 (13a) Selb/Oberfr. U . S . Zone, Germany STAATS, Henry N. (E) Magnaflux Corp., 7300 Lawrence Ave. Chicago 31, 111. STADLER, Leo E. (G) 1057 Plymouth St., Windsor, Conn. (Hartford-Empire Co., Div. Emhart Mfg. Co.) STAFFICKER, Charles F. (G) 506 Grandview Ave., Vineland, N . J. (Kimble Glass Co.) STAFFORD, Ray (M) Southern Calif. Minerals Co. 320 S. Mission Rd. Los Angeles 33, Calif. STAFFORD, W. L. (RFI) Johns-Manville Research Center Box 159, Manville, N. J. STAH M AN N, John A. (W ) 4275 Verdugo Rd. Los Angeles 65, Calif. (Gladding, McBean & Co.) STALEGO, Charles J. (G) 227 N. Fifth St., Newark, Ohio (Owens-Coming Fiberglas Corp.) ST ALTER. Thomas L. (I) 71 W. Norwich Ave., Columbus 1, Ohio STAM PS, Murray R. (W ) Canadian Porcelain Co. Ltd. Box 428, Hamilton, Ont., Canada STANDARD BRICK & TILE CORP. (Clifford A. Kleymeyer) Evansville 8, Ind. STANDARD ULTRAMARINE & COLOR CO. (L. F. May) Huntington 18, W . Va. STANGL, J. M. (W ) Stangl Pottery, Trenton 4, N . J. STANGL POTTERY (J. M. Stangl) Trenton 4, N . J. STANISLAW , T. Stanley (W ) Box 354, Centerport, L. I., N . Y. (Sylvania Electric Products, Inc.) STANLEY, George V . (E ) 2752 W . 90th PI. Evergreen Park 42, 111. (Crane Co.) STANLEY, Robert J. (G) M. H. Detrick Co., 10600 Puritan Avc. Detroit 38, Mich. STANNARD, Wilford T. (D ) J. A. Dedouch Co., 608 Harrison St. Oak Park, 111. STA N SFIE LD , James R. D. (S ) Streator Brick Co. Div. Hydraulic-Press Brick Co. Streator, 111. STAN WA Elm \ Lond STAN W C 7 t A.-. Warv. (Uriti S T A IL I.'. 5 Ma, (H i (. STAK PC, (Dan: Muiri. STARK C (J. li. Canto . STARK, 1 R. R. (Sluj, Carbo STARK E'., R. K. (Start ' S T A K KEY 1068 ", (S. L STARR )?,,>. . (U -----STARK 50 ! STATU 591 ; (Al STAU It t 26-1 STAU 1 (M. 380 STAUli Rotr 'I'..,, STAV K 915 (M STECK, V. ] Pin STEEL. 546 (Si. STEEL. She . Stok STEEL 1- io Bn., n . Des .ii STEELl ( J. c . Stau . STEEL 1 () STEELL. Hi R:, : ,c., Co: STEF.l /i P i., all Wi,. n-S STEFL, i nal Fret, It; STEIL., V 3450 i. (Ex,<,, Cl STEIN, n 7 Me., f. (Jo!.:. . STEIN, K. :,1. Messrs. Jo Bonnybridg STEIN. Sidney Interna, `or. 401 N. hr<. STEINBOt K, Wllip-Mix Louisvi .c J* STEINER, Ha Genera. Ei Power Tul Schencctadj ; merstown, Tooting England Mwin ugby louston Co., Ltd.) E. (W ) klinville, N. Y. ,* Corp.) CO. enton 9, N. J. INC. X 230 Pa. : & Mfg. Div., (M ) Jluo fig & Machinery Co.) C (M) Mansfield, Ohio ng & Machinery Co.) (R) i ittsburgh 13, Pa. Duquesne Works) . ansas City 13, Mo. (W ) ii 24, Ohio & Casting Co.) ) rth Amboy, N. J. GAL CO. ) New York, N. Y. H. B. (W ) o,, Bpx 848 (B) ock H ill 19, Mo. .ideal Co.) Jo., One 28th St. K) ve., Dayton 7, Ohio i White Co.) d., Copeland St. igland ) Mfg. Co. -) :.s, Inc. ONS, INC. ) Statesville, N. C. (X) \V. Fifth Ave. ; rrin (S ) \ Pipe Co. . . C. 00 Co., Freeport, Pa. Denver S, Colo. al Corp. of Colorado) ce, Stirling, Scotland & Co., Ltd.) . Stein & Co., Ltd. cut land w csistance Co. St., Philadelphia 8, Pa. A. (R ) 411 W. Avery St. y. e . (G) ic Co. ub. Dept. n . y. Roster S; ;$TK 'H O F F .F r e d 'L . (W F I) 'ck & Clay Record-- Ceramic Industry Wabash, Chicago 3, 111. . STT ROEDER, Frit* lier-Werke A . 0 ., Lessingstr. 16 esbaden, Germany > Ei-LE, John A. (S ) \ .-'ArketeX Ceramic Corp., Brazil, Ind. ! S T E N Q U IST , Donald R. ' U .S.S. Roosevelt (CVA 42) p .O., San Francisco, Calif. .ctv I toward B. s-1587, Nairobi iya Colony, -East Africa A. Industrial '.Research Board) STE' HNS, Dan E. (K) .x X :h State Pyropiiyllite Co. I tona, N . C. STE iNG CHINA CO. illiam T . Pomeroy) t Liverpool, Ohio NG GRINDING W H EEL CO. S . Bellamy) Box 801, Tiffin, Ohio ST! .IN ',, Harry ! . (G) nlf.ir Glass V rks 1 -o.-1 burg, Ky. STE: orge (B) .1 * ! .5 ' STE dean Electro Metal Corp. Y nkers Ave. . Yonkers 2. N. Y. \ T. Patrick : JN. .44th Ave. , Seattle 3. Wash. `T V V, W . Micha !) > lutcrlakc, A . I, Seattle 3, Wash. i GcinN-,r HAairrpolldane <:>.) Mineral Sc? - Bldg. ] nsyl ania S' 'diversity vers ty Par STE ON, William .. r w i ) * i 41, Saxon b" p. ``a. von'Hirg 0 >-<0 STT- N IS, K. !' ) > I sulator C c., Le Roy, N. Y. I ?K , Don ' E l) C- ter Adio orp. 'aster. Pa. ca) STE E N ;.LL1 ' ISRY CO. . J. >lould :nville, Ohio , .-TF RN.'GLF., (G) ckw y Gh tic. od i ., B. Pa. N TV NS .. G. r. 7 :>t. : ;; > c T . ;im . 306 * T*J TV ] TV J U NS ira rta > , r f .ia r : 7 *{. M ... <. (i ' frat * Utah t.i p . ; A 1 , ' ' . ) ' 1 - T " ) '. i - n ) y 10. N. J. "o,, Box 338 - Crescenta, Calif. Co.) 0 ' O. icago 43, III. 26 Broadway Jr. (R I) !f ) J M 'V) P ria, Ohio >) , Ltd. England Broadway M) \T > ( oratories, Inc. 6, N .Y . ! ) ST! WART. J. H. (S ) n ark Ceramics, Inc., Box 230 Canton 1, Ohio ST! .WART, John A. (G I) :9 Locust Ave., Washington, l 'a. (S . F. Drakenfeld & Co., Inc.) STi .'.'ART. Malcolm (M ) ommercial Minerals Co. HO Irwin St., San Francisco 7, Calif. ST1 WART. Wilfred H . (R ) S. Reduction Co., 4610 Melville -<st Chicago, Ind. ST! X , William C. (R ) ninum Co. of America ' S. Broad St., Philadelphia, Fa. "T1 , W. C. (W ) Clemens Pottery Co. S. Wilson Blvd., Mt. Clemens, Mich. WATER CLAY PRODUCTS CO. P. Duffy) Lock Drawer 32 in'chsville, Ohio K, Donald F . (R ) Maxwell Dr., Pittsburgh 36, Pa. t rlnson-Walkcr Refractories Co.) ST GALE, George F. (G) doming Blvd., Coming, N . Y . ming Glass Works) 'J't SLAGER, Theodore F . (W ) orundum Co. 0 Lakeland Blvd. eland 32, Ohio t**]' ARD, Stephen D . (R I) C 36th, Los Alamos, N . M. s Alamos Scientific Laboratory) r>T , Roger C. (S I) nclton Sewer Pipe Co. iclton, Ind. T Alfred A. (W ) North St., Sun Prairie, W ise, ... sconsin Porcelain Co.) . L. A. (W ) onsin Porcelain Co. Lincoln St., Sun Prairie, W ise. ST P v t John Z, (W JI) 52378935. Batty B., d FAJB.N. Bragg, N . C. Norman H . (E l) 3 > Orchard Rd. ' C eland Heights 21, Ohio ( .shaw Chemical Co.) ' o : . Benjamin (W ) ( 'om ia Crafts 1 N . Gratiot, Mt. Clemens, Mich. Conrad A . (G) '. Remington Rd. 'ey, Columbus 9, Ohio era] Glass Co.) C. P. i imic Industries, Ltd. 2 ydeway, Welwyn Garden City J England "O: . F. R. (R) ( la Firebrick CO., Ltd. ' St. Ambroise St. real, Que., Canada Robert J. (M ) W. Higman Co. 'te St., New York 4, N . Y . . obert L. (B F I) * of Ceramic Engineering 1 e- iity o f Texas, Austin 12, Texas TO , S. A. (M) ter Concentrator Co. i Glasgow Ave., Fort Wayne, Ind. V . Guy E. (G) w . Water St., Elmira, N. Y . og Glass Works) Stanley D . (G) -'tchard Ave,, Coming, N . Y , >g Glass Works) : C Kobert F . (R I) ' jy Dept., General Electric Co. . 57, Roosevelt Park P. O. ' I`('i ''! 32, Mich. 7OI.T, John P. (I) 1 ay St., Toronto, Ont., Canada K!', Chalmer P . (W ) ' inter St., Crooksville, Ohio STOTT, A. E. Edward Johns & Co., Ltd. Armitage Sanitary Pottery New Rugeley, Stafford, England STOUT, Lester L. (B) Ohio State University Research Foundation Columbus 10, Ohio STRAD LEY, Norman (E l) Minnesota Mining & M fg. Co. 2301 Hudson Rd., St. Paul 6, Minn. STRAIGHT, Lee H . (S) Iowa Clay Products Co. Centerville, la. STRAIG H T, Merton T. (S ) Adel Clay Products Co., Box 85 101 Ashworth Rd. West D es Moines, la. STRAIN, R. E. (E) Alliance Ware, Ltd. Box S50, Vancouver, B. C., Canada STRATTON, Warren 3711 15th N . E ., Seattle 5, Wash. STRATTO N, Mrs. W . B. (D ) Pewabic Pottery, 10125 Jefferson Ave. Detroit 14, Mich. STR A U SS, Simon W . (B ) 3801 Connecticut Ave., N . W ., Apt. 247 Washington, D . C. (National Bureau of Standards) STREATO R BRICK CO., D IV . HYDRAULIC-PRESS BRICK CO. (James R. D . Stansfield) Streator, 111. STRIMPLE, J. H. (B) National Lead Co., Titanium Div. Box 58, South Amboy, N . J. STROD, Arvid J. (E l) Industrial Metals Improvement Co. The Park Bldg., Pittsburgh 22, Pa. STRONG. Kenneth B. (W ) 4624 Belmont Park Terrace Nashville 12, Tenn. (Titanium Alloy Mfg. Div., National Lead Co.) STROTT, Adolf J. (R ) Kearfott Co., Inc., Ceramic Dept. Little Falls, N. J. STRO UD, Harold L. (M) 2909 Bembridge Rd., Royal Oak, Mich. (Champion Spark Plug Co.) STROUP, Philip T . (R ) Aluminum Co. o f America Box 772, New Kensington, Pa. STRO UPE, Howard E.. Jr. (W I) Wheeling Tile Co., Wheeling, W . Va. STRUCTURAL CLAY PRODUCTS INSTITUTE (H arry C. Plummer) 1520 18th St., N . W . Washington 6, D . C. STRUCTURAL CLAY PRODUCTS RESEARCH FOUNDATION (Paul V . Johnson) Geneva, III. STRUEBING, Harold J. (R ) 1215 Military Rd., Buffalo 17, N. Y . (Richard C. Rcmmcy Son Co.) STUAR T. Deraid A. (B) Thurston Hall, Cornell University Dept, of Engr. Mat., Ithaca, N. Y. STU B BS, John M. (M ) National Gypsum Co. 3013 Boudinot Ave. Cincinnati 38, Ohio STUCKEY, Jasper L. (X ) 1911 Sunset Dr., Raleigh, N . C. (North Carolina Dept, of Conservation & Development) STULL, John L. Box 41, Alfred, N . Y. STUNTZ, Robert P. (R ) Babcock & W ilcox Co. 105 S. LaSalle, Chicago 3, 111. S T U P A K O F F CERAM IC 8c MFG. D IV ., CARBORUNDUM CO. (Semon H . Stupakoff) Latrobe, Pa. Roster 83 ^LjUPAKOFf, Scmon H . (W ) T Stupakoff Ceramic & Mfg. Div., . J. Carborundum Co. ' Latrobe, Pa. fYER, Charles A. (R ) 11 Roxbury Rd., Forest Hills Pittsburgh 21, Pa. (Vesuvius Crucible Co.) yH R , Karsten H., Jr. (W J) National Lead Co., Titanium Div., Research Dept., Box 58 South Amboy, N. J. -UBBARAO, Eleswarapu C. Pennsylvania State University College of Mineral Industries Dept, of Ceramics University Park, Pa. , flBRAMANIAN, D. R. , M /S Burn & Co. Ltd. j Ranigunj, P . O. Dist. Burdwan, India (JLLIVAN, Eugene C. (G F) Corning Glass Works, Corning, N . Y . jULLIVAN, John D . (B F ) 1 Battelle Memorial Institute 505 King Ave., Columbus 1, Ohio SULLIVAN, Joseph C. (G) i 38 Fulton St., Coming, N . Y. (Coming Glass Works) ULLIVAN, Paul A. (GI) 624 Adeline Dr., Webster, N . Y. (Bausch & Lomb Optical Co.) SUMERBANK (Bulent Buktas) Ankara, Turkey SUMMERS, E. W . (G ) Owens-Illinois, Technical Center Box 1035, Toledo 1, Ohio SUMRELL, Ferrall N. (E ) 707 Henry St. Uniondale, Hempstead, N. Y . (Hardwick Hindlc, Inc.) SUN, K. H . (G F) 2131 Lindsay Rd., Pittsburgh 35, Pa. (Westinghouse Electric Corp.) >R ~ ieramic Institute \ Bandung, Java, Indonesia 5UR E N A M E L & STAMPING W ORKS, LTD. (M. M. Sur) 24 Middle Rd., Entally Calcutta 14, India jUR, M. M. Sur Enamel & Stamping Works, Ltd. 24 Middle Rd., Entally Calcutta 14, India SURFACE C O M BUSTIO N CORP. (Harvey C. W eller) 2375 Dorr St. Toledo 1, Ohio SURFLEET, Harold Kaylene Laboratories, Waterloo Rd. London, N. W. 2, England (Kaylene (Chemicals) Ltd.) SUTHERLAND, Clark (S ) Robinson Clay Product Co. 6S W . State St., Akron 9, Ohio I SUTHERLAND, Frank R. (RI) R. R. 6, Box 316-A, Kokomo, Ind. (Haynes Stellite Co.) SUTPHEN, F. G. (X ) 2605 Central Ave., Middletown, Ohio SUTTON, Paul M. (G ) Coming Glass Works, Coming, N. Y. SUTTON, Willard H . Pennsylvania State University Mineral Industries Bldg. University Park, Pa. SUTTON, William H ,, Jr. (G) Davison Chemical Co. 101 N . Charles St., Baltimore 3, Md. Su t t o n , w . j . (R ) M High St., Alfred, N . Y. 'State University of New York, ' college of Ceramics) SVEC, J. J. (W I) 3440 S. Euclid Ave., Berwyn, 111. I (Industrial Publications Inc.) Wf SVVAIH. Richard S. K i | Nash Hall, Campus Rd., Toledo 6, Ohio ; | p y . 34, N o. 10 (1955) ]_ SW ALM, Phaon H . (W ) Box 178, Kingston, Ont., Canada' (Frontenac Floor & Wall Tile Co., Ltd.) SW A N SO N , Carl H. 770 Tech wood Dr., N. W.. Atlanta, Ga. SW EA R IN G EN . Jack C. (G) United Can & Class Co. Box 90, Hayward, Calif. SW EELY, B. T. (E F I) Gate 12, Crystal Lake, 111. (Chicago Vitreous Corp.) SW EITZER, Mark (W ) 320 N . Euclid, Pasadena 4, Calif. (S . Paul Ward, Inc.) SW EN T ZEL , John P. (R I) 8960 Hennepin Ave. Niagara Falls, N. Y. (Carborundum Co.) SW EO, Benjamin J. (E F I) Ferro Corp. 4150 E. 56th St., Cleveland 5, Ohio SW ICKER, Victor C. (G F) 907 Floral Dr., Whittier, Calif. (Consultant) SW IFT, Howard R. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio SW IGART, Joseph J. (M ) 3014 Middletown Rd., Pittsburgh 4, Pa. (Vitro Rare Metals Co.) SW IND ELL BROTHERS, INC. Bayard & Russell Sts. Baltimore 30, Md. SW INDELL-DRESSLER CORP. (Philip Dressier) Box 1888 Pittsburgh 30, Pa. SW IN E H A R T , David C. 1101 Campus Parkway, Rm. 633 Seattle 5, Wash. SW IN N E R T O N , Bertram B. (W ) 157 Hampden Park, Tiffin, Ohio (American Radiator & Standard Sanitary M fg. Corp.) SW INN ERTO N, George R. (M ) 35 E. State St., Alliance, Ohio (Moore & Hunger) SYLVANIA ELECTRIC PRODUCTS, INC. (B. S. Ellefson) 1740 Broadway, New York 19, N . Y. SY LV E STER , George R. (M I) . Sylvester & Co., Solon Center Bldg. Solon, Ohio SZCZEPANSKY, Daniel A. Box 757, Alfred, N. Y. SZYM ASZEK, Jan Walter (R ) 121 Muir Ave. Niagara Falls, Ont., Canada (Metals Research Laboratories) Ti TA IL B Y , Roland V . (W I) Stylon Corp., Milford, Mass. TA K A H A SH I, Kakuichiro (F ) Nippon Glass Co., Ltd. 1, Ginza 7-chme, Chuo-Ku Tokyo. Japan TALBOT, Herbert W ., Jr. (M ) National Lead Co., 1376 River Ave. Pittsburgh 12, Pa. TALWALKAR, T. W. 8 Bagmati Rd., Jamshedpur, India (Tata Iron & Steel Co., Ltd.) TAN BERG, Ragnar Drammens Glassverk Drammen, Norway TAO, Yung (R) 3834 W. 117th St., Cleveland, Ohio (North American Refractories Co.) TARNACKI, Walter J. (W I) 8417-C Loch Raven Blvd. Towson 4, Md. (Friez Instrument Div., Bendix Aviation Corp.) TARNOPOL, Milton S. (G) 943 Ninth Ave., Brackenridge, Pa. (Pittsburgh Plate Glass Co.) TAS t 1 TA'i T A 'l TAL' A 1 TAL lisi 190 1 .1 TAi TAI TAI TA'i TAI TA 1 i M nt . O! TAV TA Y ; ; C) ; University 1adust ries f'a. ) neoln, 111. 0.) restbury, N. Y. h. (11) t Yve., Dayton 5, Ohio r levelopment Center) (HI) -r Rd. i(:. 1'a. ) W) Co., Inc. lisville 8, Kv. B) Oak Ridge, Tenn. jiial Lab.) . (S) v ., Salisbury, N. C. W ts, Inc.) , incaster, Gain - d) . inic Tile Co. a o , J. (W I) W isc. . Barberton, Ohio W) v E pinent Corp., Box 352 TA Y TA . >1 UC e TA Y TA Y TA Y 0 TE. . ' V. (B F ) . g & Mfg. Co. Div. .c., St. Paul 6, Mian. (S) i*roducts ...tion, Geneva, 1.. & TAY LO R CO. ! .. aback) Chester, W . Va. a- J. (R ) L, K. R. 3 . Fa. . Son Co.) U C. (G F) t Works, Corning, N. Y. K) . ilcox Co., Box 923 TEA TEA t. <_ TEA TEE 6 TEE ( t TEE TEE c te; ei ( TEC ( TEK . B .. 1 K & T IL E CO. i.J r .) -a, ,ie, Texas Jr. (GI) 1. >1S Specifications Dept. J6, Toledo, Ohio . :,'.ni T . . i St., Marietta, Ga. N. (E) t Rd., Deerfield, 111. . Thompson Co.) (SF) eetor, 43 Burling Lane, S. N. Y. _ wnmercial Co.) C. (S ) Co., Shawnee, Ohio Up VV. (S I) Co., Box 866 16, Ohio :d H. (S ) Co., Upper Sandusky, Ohio RATO RIET Yooratory), (Christer Enberg) Kristinas vag 45 0 , Sweden : , Henry F. (M) Teichmann, Inc. , Pittsburgh 30. Pa. R oster 85 I: i; ii V. i. ! r : ICHM ANN, Henry F., Jr. (G ) 645 Klderwood.Dr.. R. R. 2 Brici'.'cville, Pa. (H - ry f . Teichmann, Inc.) IC IU 'A N N , Newton N . (G) I 24 Hardy Dr., R. R, 2, Bridgeville, Pa. (Ilenrv F. Teichmann, Inc.) TENNER V, Victor J. Findlay, III. . TF.RMAN, Mark J. (R) ftabcr.-lt & W ilcox Co. l 12nd St., New York 17, N . Y. E-; James W ., Jr. (W J) ) eea St., Kittanni-.ig, Pa. Co.) K r' iffin E. (E ) 6 2 Willow, Wheaton, 111. ( lot Nit Co.) TKT! 1CJames D . <SF) 1102 Fourth St., Vinton, la. i /in n l.ime fit Rock Co.) ' - v S ICK CO. (W . T. Gill, Jr.) * . Rmwnwood, Texas KITTED P IP E CO. . ' tik-y) . i,( 1 T'ir . Mineral W ells, Texas t C.r.ASS MFC. CO., IN C . Arrandale) nd Central Ave., Elmira, N . Y. Krwin F. (S ) - St., N . W ., Canton 3, Ohio an Brick, Inc.) ' i !i. (M ) H i St. . s, L. I,, N . Y. Iloy M fg. D iv., -.d Co.) tan R. (B) bon Co., Box 6087 hio hn W . (W I) ilox 119, Orrville, Ohio Tarry W. (W FIj Win China Co. Va. <WF) ment, General Electric Co. imore 3, Md. es A . G. arson, Ltd., < irks, Stourbridge, England les W . (Honorary) se, Old Swinford England ' 'carson, Ltd., rlcs) W. (W I) y, Trenton, N . J. t A. (R) Ave., Cincinnati 11, Ohio r Sons Co.) c L. (G) . Ave., Tarentum. Pa. Plate Glass Co.) 1. ( M) ' mrt, Red Bank, X . J. < ) t H. (B) Rd,, Newton Falls, Ohio t? & Mfg. Co.) ics F. v e, Greenville. S . C. . Paul (RF) ratories o , Joplin, Mo. rles W . (R) ohnstown, Pa. .Peel Co.) '! de L. (RF1) PI-.mouth Rd. Pa. ker Refractories C o ) t'lelin S, (W ) ' v c , Matawan, N . J. Mfg. Co.) 1crick S. (G F) tones C o, Inc. t , Louisville 10, Ky. ' (1955) T! OM 'SON, G. L. Borax & Chemicals, Ltd. 2 2 . High Holborn Loftlon, W . C. 1, England T! O M PSO N, John D . (E ) 24 ' Evergreen D r , Royal Oak, Mich (K ngs Mfg. Co.) : 01. ON, M. W . (W ) 1 1 1 China C o , East Liverpool, Ohio T Oh' 'SO N, Matthew S . (G ) I'.. -to Rico Glass Corp, Box 4272 nan, Puerto Rico I ON, Noel M. (R) hady Lane, Pittsburgh 34, Pa. ( rite D iv , l. tsal Atlas Cement Co.) V O C 1 ON, Renold D. (M ) ay Norton & Co. Tanna Bldg, and 1, Ohio ON, Thomas E. (E) .'52, W illiams Bay, Wise, ras C. Thompson Co.) ON, Lt. William M , Jr. (BJI) C, Area B, Box 8308 t-Patterson A FB, Dayton, N, Homer G. (R) W. Howard St. ukce 14, Wise, a Bradley Co.) Ohio N, James K. (W ) taster P i, Bath, N. Y. inghouse Electric Corp.) timer E. (R I) arkhurst B lv d , Buffalo 23, N. Y . on Co.) Y , J. Palin (W ) 143, Jamestown Rd. msburg, Va. t Thorley Co.) , James E. V. Main S t , Robinson, 111. , Vaughn M. can Ceramic Society I. High S t , Columbus 14, Ohio ATE, Bruce W. (S ) gbland A v e , Metuchen, N. J. -al Seaboard Terra Cotta Corp.) ON, George A. (M) a Silica C o , Box 437 a. 111. ON, Paul E. (W I) Lasheart D r , La Canada, Calif, o Corp.) ER, William R. (D ) Ceramics, Inc. Main, Akron 10, Ohio , Herreld D . (W ) ndoah Silica C o, Inc. State S t , Trenton 8, N. J. R. Everett E. (W ) 5, Old State Rd. ctady 6, N . Y. a! Electric Co.) ST, Helen M. v, Alfred, N . Y . ER, Hans (BFI) ta Mining & M fg. Co. Research, Inorganic Section Rd. & East Ave. il 6, Minn. Her W . Munziker & Cie, Lagerstrasse 1 . Switzerland 'arvey L. (M I) Igard A v e , Berkeley 9, Calif, t- olis-Honeywell) ' lliam H . F. Stacks," Caidy t Kirby, Cheshire, England ster College of Technology) '>h L. (C ) oraing Fiberglas Corp. e , Newark, Ohio \ N , John D. (W ) i Tile M fg. Co. Ninth S t , Little Rock, Ark. TILLOTSON, Clifford (R ) Tillotson Refractories Co. Box 398, Corona, Calif. TILLOTSON, E. Ward (GF) Mellon Institute, 4400 Fifth Ave. Pittsburgh 13, Pa. TINKER, Dean (M ) Granville, Ohio (Ohio Kilns, Inc.) TINKLEPAUGH. J. R. (RI) State University of New York College of Ceramics at Alfred Univ. Alfred, N. Y. T IP P IN G , J. United Glass Bottle M fg rs, Ltd. 8 Leicester St. London, W . C. 2, England TITANIUM ALLOY MFG. DIV., NATIONAL LEAD CO. (W . J. Baldwin) Box C, Bridge Station Niagara Falls, N . Y. TITUS, Henry B. (R ) North American Refractories Co. 50 Church S t , New York 7, N . Y . TOBERG, John (E ) Shepherd Chemical Co. 2803 Highland Ave. Cincinnati 12, Ohio TOBEY, Henry M. (S ) Dow Chemical C o , Midland, M idi. TODD, Henry (W ) Dee Lane, Queenston, O n t, Canada (Canadian Ohio Brass Co.) TOLER,'Herbert R. (E ) R. R. 2, Box 544, W est Chicago, 111. (American Terra Cotta Corp.) TOM, Elgin M. (G) 4208 Marlaine D r , Toledo 6, Ohio (Kimble Glass Co.) TOMASEK, A. J. (R) Walsh Refractories Cdrp. 101 Ferry S t , St. Louis 7, Mo. TOMKINS, David E. (M ) R. R. 5, Eastbrook R d , N ew Castle, Pa. (Shenango China, Inc.) TOOL, Arthur Q. (G F) 7325 Carroll Ave. Takoma Park 12, Md. TOOLEY, F. V. (GF) 611 W. Oregon, Urbana, III. (University-of Illinois) TOOMEY, James E. (R ) Kaiser Aluminum & Chemical Corp. 1625 Eye S t , N. W ,, Room 913 Washington 6, D . C. TOPPING, John (R) United States Steel Corp. 525 William Penn PI. Pittsburgh 30, Pa. TORGAL. K. G. 1/108, Mannarpuram Tiruchirapalli, S. India (Jamal Mohamed College) TORNO, Ralph F. (M ) 369 Front S t , No. 1, Berea, Ohio (McGean Chemical Co.) TOROK, Julius J. (G) 3008 Emmick D r , Toledo 6, Ohio (Kimble Glass Co.) TOSTEVIN. Edgar R. (W JI) R. R. Bogtown Rd. Purdy Station, N . Y . TOULOUSE, Julian H . (GI) 1817 Potomac D r , Toledo 7, Ohio (Owens-Illinois) TOW NSEND, William O. (G I) 1028 E. Main S t , Ottawa, Ohio (Sylvania Electric Products, Inc.) TRABERT, Loren A. (W I) 610 Maple St,-R ed W ing. Minn. (Red W ing Potteries, Inc.) TREDENNICK, William T. (R I) 514 Brookfield Rd. Drexel Hill, Pa. (Refractory Specialties Co.) TREISCHEL, C. C. (W FI) R. T. Vanderbilt C o, 230 Park Ave. New York 17, N . Y. R o ster 87 lENTON POTTERIES CO. Plants 1 & 2, 309 N . Clinton Ave. Box 141, Trenton, N . J. tEPTOW , Arnold W. (E ) B d l Telephone Labs. Vay H ill, N. J. iE A, John F. Moira Rd., Woodville Nr. Burton-on-Trent, England (John Knowles & Co., Ltd.) RINIDAD CLAY PRODUCTS, LTD. (Harold A. Eckel) 44, South Quay Port of Spain, Trinidad, B. W . I. RINXLEIN, Robert L. (W ) Box 722, Santa Anna, Texas (Santa Anna Tile Co.) RIPP, Harlan P. (E l) 1435 Nightingale Rd., Louisville, Ky. (General Electric Co.) ROMPETER, Bernard J. (W ) Champion Spark Plug Co. 8525 Butler Ave., Detroit 11, Mich. ROSTEL, L. J. (RFI) General Refractories Co., Box 1673 Baltimore 3, Md. ROSTEL, Louis J., Jr. (I) Norton Co., 1 New Bond St. Worcester 6, Mass. ROY, H. Neal (RI) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5j Ohio .'ROY, Walter J. (E) 888 Chili Ave., Rochester, N. Y . (Pfaudler Co.) TRUESDALE, Richard S. Box 275, Alfred, N. Y. rSE, Sbou-cheng ( W 1) Box 1055, North Sta., New Bedford, Mass. (Aerovox Corp.) TUCKER, Donald J. (M I) "" ' 4 Winthrop Rd. itingdon Valley, Pa. . . decision Grinding Wheel Co.) TUCKER, Edward F. (R) Stebbins Engineering & M fg. Co. Watertown, N. Y. TUCKER, Harvey C. (W I) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio TUCKER, Roland E. (W l) Trenton Potteries Co. 309 N. Clinton Ave., Trenton, X. J. TUNG, Chi Fang (E) 19418 Arrowhead Ave. Cleveland 19, Ohio (Glascote Products, Inc.) TUOM OLA, Richard V. Box 827, Alfred, N . Y. TURBETT, Paul E. (MI) 1127 Chickasaw Dr., Paris, Tenn. (H . C. Spinks Clay Co., Inc.) TURCK, Raymond L. (R ) 906 N. Highland, Dearborn, Mich. (Peninsular Grinding Wheel Co.) T U R IS S IN I, Robert (GJ) Corning Glass Works, Fallbrook Plant Coming, N. Y. TURK, Richard H , (E F I) Pemco Corp., 5601 Eastern Ave. Baltimore 24, Md. TURLEY, Charles L. (G) B. F. Drakenfeld & Co., Inc. Box 519, Washington, Pa. TUR NBULL, Edward D. (W ) 500 Penn Ave., Scranton 3, Pa. (Euston Lead Co., Div. Glidden Co.) TUR NBULL, John C. (G) '.iio Corp. of America jA-Victor Div., Lancaster, Pa. TURNER, A. A. (R) 153 Lake Ave., Metuchen, N. J. (Carborundum Co.) TURNER, Donald Messrs. Lodge Plugs, Ltd. Rugby, England Vol. 34, N o. 10 (1955) j. / TURNER, Mort D. (B ) Comer Fernando 1 & E. Roosevelt Apt. 5, Hato Rey, Puerto Rico (Puerto Rico Div., Mineralogy & Geology) TUR NER, P. P., Jr. (R I) 46 Imbler Dr., Cincinnati 18, Ohio (General Electric Co.) TUR NER, Robert C. (S I) One Jefferson Ave. Rockville Centre, N. Y. (Structural Clay Products Institute) TURNER, W. E. S. (Honorary) 30 Whitworth Rd., Ranmoor Sheffield 10, England TUT TL E, George N . (E ) Benjamin Electric Mfg. Co. Seegers Rd. & N. W . Highway Des Plaines, 111. TUTTLE, Milton A. (R) Box 981, Alfred, N. Y. (State University o f New York, College of Ceramics) TW ELLS, Robert (W F I) Electric Auto-Lite Co., Spark Plug Div., Box 231 Fostoria, Ohio TW ELLS, Robert G. (G I) 528 Isabella Ave., Lock 4, Pa. (Coming Glass Works) TWYFORDS, LTD. Cliffe Vale Potteries Stoke-on-Trent, England TYGART VALLEY GLASS CO. (E . A. Hinkins) Box 503 Washington, Pa. TY LER, W . S., CO. (C. E. Jenks) 3615 Superior Ave., N. E. Cleveland 14, Ohio TYRRELL, Miles E. (R) Box 412, Norris, Tenn. (U . S. Bureau of Mines) TYSINGER. Ted W. (S) 403 S. Hargrave St., Lexington, N . C. (Cunningham Brick Co.) u UELTZ, H . F. G. (B) 39 West St., Worcester, Mass. (Norton Co.) UHRM ANN, C. J. (GF) imperial Glass Corp-, Bellaire, Ohio ULEMAN. Turrell (G) 109 Virginia Ave., Aspinwall, Pa. (Pittsburgh Plate Glass Co.) ULRICH, Robert J. (E ) American Radiator & Standard Sanitary Corp. 1541 S. Seventh St., Louisville 8, Ky. UNION FRANAISE DES PRODUITS REFRACTAIRES (Louise Halm) 15, Rue de Milan, Paris 9e, France UNITED CLAY MINES CORP. (K. E. Ward) Oakland & Prospect Sts. Trenton 6, N . J. UNITED GLASS BOTTLE MFGRS., LTD. (J. Tipping) 8 Leicester St. London W . C. 2, England U N ITED STATES GYPSUM CO. (C. M. Lambe) 300 W . Adams St. Chicago 6, 111. UNITED STATES STEEL CORP. (W . S. Debenham) 525 William Penn PI. Pittsburgh 30, Pa. UNIVERSAL CLAY PRODUCTS CO. (C. A. Bloor) Sandusky, Ohio UNIVERSAL DENTAL CO. (Joseph Kohn) 48th & Brown Sts. Philadelphia 39, Pa. UNIVERSAL POTTERIES, INC. (Harry E. Davis) Cambridge, Ohio UNIVERSAL-RUNDLE CORP. (A . L. Johnson) W. Keith McAfee Lab. Box 1268, Mahoningtown, Pa. UNI Sa (i . 3 : vv. Mi i . ill CNUM, Rd h11 U; (U r U PIM URi v . t : iU la ai UTAH R Boa 27 LJ CORP. me Ave. ) <*. New Castle, Pa. ) .1timor 12, M*l. more 23, N. Y. is , (C. H. Myers) ty 10, Utah VAl VAl Ti u '1 ,Q\ VAL hi IN D1 A CC W Wl M VALE' VAl. VAL 2 VAN VAN VAN i VAN I VAN ( r. VAN 1. 1 (v'.u! VAN ,/K 4 ',3 ( -VI VAN Y L VAN ! N. \ VAN ;o -\ i-ul C:. rte VAN 10 741 1 F :ant (:oei VAN HO La (Cu VAN 10k littei 67 V. VAN N il Laboi Dr V Delft (Deli VAN SCI Sta: Co! AF VAN T 52! (K < CO. N RE BRICK Jr-) cy (M) Co. i' iancsco 4, Calif- da a. rs 1, N. Y. (RI) it 'i 39, Mich. anland, Calif. ,G) , 1 . Y. .rk-) (B l) j\ .. cut .ara Falls, N. Y. . . CO. l'ark Ave. -ni J. (R ) Apt. 6 . C. .) n I.. (GJ) : .ansas City 16, Mo. ii . i berglas Corp.) (B) . .m Corp. -i n 5, Texas , 1 . P. ni Enschede, Holland o:. , \ V. (M) ,.ii Corp. Carteret, M. J. iiy T. (W) .: k Kcl. r e , KT. Y. I Oil Co., Inc.) , L o u i s A. (R) .son, N. Y. :l CO.) s . (M) Nickel Co., Inc. N e w York 5, N. Y. Nb u r g , c. j. ;11 voor Microanalyse .ni lleyst Plein No. 2 1.1 lands ltiic.al University) N, Emily C. (XF) rsity of New York Ceramics, at Alfred Univ. Y. R. II. (E ) i ree Rd., Kohler, Wise. ..) ROSTKK VLA Ck, I.awm ice H . (B I) I Dept, of Chera. iV Metal. Engineering 1 University of Michigan j Ann Arlxir, Midi. W WIGGUHEN, Charles G. (W I) American Finery Wheel IKichmond Square, Providence 1, R- I- W..N' 7.EE. Arthur K. (G) 3430 Inverness Ave., Toledo 7, Ohio (Owens-Illinois) VAK^A, Eugen c L. 3 !0 Coen r .' iw B n iii ' (''.itgcrs VAS N N O ram ir a # Lu i i. Ai i Gua . (W ) 'iiiversity Heights M. J. >y) Antonio de S/A i. s/n o . Sao Paulo, Brazil VASI? S, T* mss (BJ) 1 i l Dit ars Ave. I. :lg Isla 1 r y S, N . Y. ( -nal C !>` ; !ncering Labs.) VAV LAV, l*ry- ! V . H <Gl) ! Glass Co. ! ' . un 4, W . Va. VA , y (XFI) f* T ile Co., Box 58 erv-' c ! icon, Ga. VEA: . Ja< '. 1 ) 4 Re( -nois o ' : , Joliet, 111. rt ucts Co.) vKK Ko" PI) W f >1 - n. 611 y- ve: J- . Jr. (RI) "sville, Okla. i Co.) VF.: L U! .h. ai ') Jo. cm . VEF \ 'V X ni i. . r <64 lxico y ..S . a .) V 1\ M) nt Co. cvoland, Ohio VF vi' i: , V .1 IS CO. rg) Box 8275 >i 18, Pa. i it Id Rd. ,-a \ V' r, England Ltd.) S DIV., WEAKER CO. ' pie Ave. ord City, Pa. REY, S. A. :ez) *P o -rrey N . L., Mexico P .10 m ing, N. Y. Cc ks) K fR) 5. Francisco 22, Calif, A n- vC 61S For' S'CEI R. 5 . (Co N'CE 33C C T I: Po V Cfc. >L. SI ute of Technology 73, Mass. )DUCTS CO. 'Idg. g .. W I) i-i . Hickory, K . C. C. (MJ) . Youngstown, Ohio 'inrden ' rlc ' IOLA, Pfc. Nazzareno, Jr. (RJ) l! 5 1339284, Hq. Co. 2nd Bn. 8 f h Regt., 10th Infantry Div. Ai O 36, New York, N. Y. ISC \ 'TI di MODRONE, Raimondo S . Ceramics Richard Ginori 1 ia Bigli, Milan, Italy ITO O, Sylvester A. (R I) 9'J 65 64th Rd., Apt. 2H Finest Hills, Long Island, N. Y. (A isicnal Laboratories) TTF US STE EL P R O D U C TS CO. ( . r H . W eil) Box 3991 C and 20, Ohio IT ' iA N U FA C TU R IN G CO. h Boyce) 60 Greenway Dr. i urgh 4, Pa. VOD A, Albert L. (E ) A a Porcelain Enameling Co. 4 Augusta Btvd., Chicago SI, 111. VOG: . Ralph B. (M ) I -ml Lime & Stone Co., Carey, Ohio VON I Y, Francis J. (D ) i Av., Perth Amboy, N . J. ( iry, Inc.) VOC .5, John H . (W ) rrow Highway, Claremont, Calif, t Ceramics Co.) VOS ilf.ed \ ones' Roofing Tile Works Ltd. I ?, I'limmerton, New Zealand VOS yuiond O. (G ) ? rshing St., Corning, N . Y. .g Glass Works) VOS .coll G. (E ) iview Rd., Cleveland 9, Ohio up.) VR1: I aminondas !< of Chemistry & Agriculture lo-Poulos" of the Hellenic Co. .a, Piraeus, Greece VUI' Milan, Jr. (M I) !., Woburn, Mass. i ' I.. Cabot, Inc.) WA' WA WA' WA VA WA WA WA V W V, John B., Jr. (B ). Bureau of Standards, D iv. 9.1 t:. & Van Ness St., N . W . n 25, D. C. , Jack H . (G F) tin Rd., N ., Newark, Ohio Uss Div., i Plate Glass Co.) aiceF . (W ) i . ' ernon Ave., Pasadena 3, Calif. F. igner & Co.) V imid C. (R ) Y vs. one Rd. e Heights 21, Ohio r n Corp. of America) I o B. (D ) e Rd., Reynoldsburg, Ohio ex Mold Co.) it J. (M) hi, Inc., 8 Central Ave. N. Y. . , Wald ' stavsbergs Fabriker . erg. Sweden ! ng.ee (B) . In-., 2905 E. 79th St. 4, Ohio i! I. (E ) . t., Berea, Ohio C. e.mical Co.) edert J. (W ) rp., 321 Broad Ave. !. j . . D, Aichard E. B. (M ) .s D ig . Co., Coliingdale, Pa. Vi! .r T . (GJ) Ei trie Products. Inc. Le nr Warren, Pa. -IN, !'. I 5 . (R ) ion C on Co.. Cleveland. Ohio !A L-ll . William O. rlr i. raners, Milledgeville, Ga. WALKER, A. M. Australian Tesselated Tile Co. Mitcham, Victoria, Australia WALKER, Eugene E. (W ) 220 W . Sheridan Ave., New Castle, Pa. (Universal-Rundle Corp.) WALKER, Henry E. (G) Harding Glass Co., Fort Smith, Ark. W ALKER, Herbert M. (W ) Walker China Co., Solon Rd. Bedford, Ohio W ALK ER, John Morgan Crucible Co., Ltd. Battersea Church Rd. London, S. W . 11, England W ALKER, Raymond F . (B ) 3726 Connecticut Ave., Apt. 408 Washington 8, D . C. (National Bureau of Standards) W ALKER, Warren W . (B ) 29 Laurel FI., Upper Montclair, N . J. (Graphite Metallizing Corp.) W ALKUP, D. H. <W) Kilgore Ceramics Corp., Box 1619 Kilgore, Texas . W ALKUP, Milton B. (M) Temescai Metallurgical Corp. 1415 S. 47th St., Richmond, Calif. W ALLA. Max R. (W ) Box 1369, Little Rock, Ark. (Winburn Tile Mfg. Co.) WALLACE, Arthur B. (W ) Du-Co Ceramics Co., Box 587 Butler, Pa. W ALLACE, Curtis C. (G) Electric Storage Battery Co. Box 5723, Philadelphia 20, Pa. WALLACE, Paul F. (B) Aluminum Co. of America Aluminum Research Lpbs., Box 772 New Kengsington, Pa. W ALSH, Donald E. (G) Consolidated Feldspar Dept., International Minerals & Chemical Corp. East Liverpool, Ohio W ALSH REFRACTORIES CORP. (A . J. Tomasek) 101 Ferry St. St. Louis 7, Mo. W ALTON, Jesse D ,, Jr. (E ) 3304 Fairway Rd., N. E. Atlanta 19, Ga. (Engineering Experiment Station Georgia Institute of Technology) W ALW O RTH , Chester A . (G) Libbey-Owens-Ford Glass Cq. Box 4278, Charleston 4, W . Va. WAMBOLD, Jack (B ) 325 K. Palisades BJvd. Palisades Park, N . J. (Wright Aeronautical Div., Curtiss-Wright Corp.) WAMPLER, Roy W . (G) Libbey-Owens-Ford Glass Co. Technical Bldg., 1701 E . Broadway Toledo 5, Ohio W ANG, Franklin F. Y. 405 N . Gregory St., Urbana, 111. WANGELIN, H. P. (W ) Universal-Rundle Corp. 3305 W . Forest Home Ave. Milwaukee 15, W ise. W A R D , George V . (R ) McLain Fire Brick Co., Div. o f H . K. Porter Co., Inc. W eilsville, Ohio W ARD, George W . (G) Gustin-Bacon M fg. Co. 210 W . Tenth St., Kansas City, Mo. W ARD, John B. (D ) Corning Glass Works, Corning, N . Y . W ARD, John F. (R ) Johns-Manville, 22 E. 40th St., New York 16, N . Y . WARD. K. E. (M) United Clay Mines Corp. Oakland & Prospect Sts. Trenton 6, N . J. R oster 91 \tfARD. Mrs. S. Paul (M ) 601 Mission St., South Pasadena, Calif. (S. Paul Ward, Inc.) \VARDE, John M. (R) 22 Outer Dr., Oak Ridge, Tenn. (Oak Ridge National Laboratory) WARFIELD, Robert A. (G) 2460 E. Livingston Ave. Columbus 9, Ohio (Federal Glass Co.) WARNER, Maurice F. (M ) 111 Glenwood Ave., East Orange, N. J. (Sierra Talc & Clay Co.) WARRELL, Lincoln A . (R ) Aluminum Co. of America 230 Park Ave, New York 17, X . Y. WARREN, George ( E l) Pfaudler Co., Research Laboratory 1000 West Ave., Rochester 3, N . Y. WARSHAW, Israel (B ) Glass Research Div. Pittsburgh Plate Glass Co. Creighton, Pa. WARYGA, Casimer F . (R ) 342 E. Ashdale, Philadelphia 20, Pa. (Frank Samuel & Co., Inc.) WASHABAUGH, Grover C,, Jr. (M ) New Castle Refractories Co. New Castle, Pa. WASHINGTON BRICK CO. (John R. Clark, Jr.) Muirkirk, Md. WASHINGTON BRICK & LIM E CO. (Walter Senters) Box 2198 Spokane, Wash. W ASHINGTON PO RCELAIN CO. (E. R. Miller) Willow St. Washington, N. J. WASMANN, Russell K. (R) Laclede-Christy Co., 391 Sutter San Francisco 8, Calif. WATERS, Martin R. (W I) 28 Sweetbriar Lane, Levittown, Pa. (Wenczel Tile Co.) WATKIN, Robert W . (W ) 2507 St. Clair Ave. East Liverpool, Ohio (Edwin M. Knowles China Co.) W ATKINS, Charles (I) 783 Brighton Blvd., Zanesville, Ohio WATKINS, George B. (G) Libbey-Owens-Ford Glass Co. 1701 E. Broadway, Toledo 5, Ohio WATKINS, Ray T. (S) U . S . Tariff Commission, Ceramic Div. Eighth & E Sts., N . W. Washington 25, D . C. WATKINS, W. J. (M ) Kentucky Clay Mining Co. Mayfield, Ky. WATSON, George F. (R ) American Brake Shoe Co. Metallurgical Lab., Mahwah, K. J. WATT, Charles Gaspro, Ltd., 500 Kuwili St. Honolulu 4, Hawaii WATT, Loren (W ) W att Pottery Co. Crooksville, Ohio WATT POTTERY CO. (Loren Watt) Crooksville, Ohio WATTS, Arthur P. (R) A C Spark Plug Div., General Motors Corp., Dept. 3103 Flint, Mich. WATTS, Arthur S. (Honorary, W FI) Lord Hall, Ohio State University Columbus 10, Ohio WAUGH, J. Stanley (BJ) Box 1, East Patchogue, N. Y. (General Electric Co.) WAXLER, Roy M. (G) National Bureau of Standards Conn. Ave. & Van N ess St., X. XV. Washington 25, D. C. WEATON, Ralph L. (G) St. Joseph Lead Co. of Pa. Zinc Smelting D iv., Monaca, Pa. WEAVER, Don S. Box 787, Alfred, N. Y. : Vol. 34, NO. 10 (1955) WEAVER, F. L. (R) Weaver Materiel Service, Gokey Bldg. Jamestown, N. Y. W EAVER, Harold L. (G) 303 Chestnut St., Port Allegany, Pa, (Pittsburgh Corning Corp.) WEAVER. R. A. (MF) Ferro Corp., 4150 E. 56th St. Cleveland 5, Ohio WEBB, Bradley A. 5850 W. 88th St. Los Angeles 45, Calif. W EBBER, John J. (R) 138 Meadowbrook Dr. Pittsburgh 34, Pa. (Harbison-Walker Refractories Co.) WEBER, Arthur W. (G) Corning Glass Works Coming, N. Y. WEBER, Berthold C. (B ) 3833 Saranac Dr., Dayton 9, Ohio (Aeronautical Research Laboratory) WEBER, Don A. (S ) Deister Concentrator Co. 901 Glasgow Ave., Fort Wayne, Ind. W EBER, Kenneth E. (M ) 2514 Thayer St., Evanston, 111. (O. Hommel Co.) W EBSTER, Charles E. (R I) 311 E. Beaver St., Zelienople, Pa. (Lava-Crucible-Refractories Co.) W EBSTER, David (S ) Polychcmicals Div. West Virginia Pulp & Paper Co. Box 832, Charleston, S. C. W EDD ELL, George G. (M ) O. Hommel Co., Box 475 Pittsburgh 30, Pa. WEEKS, Ben W. (M) Allied Trading Corp. 807 Commercial Bldg., Raleigh, X . C. W EH TJE, Ernst J. Box 269, Malmo 1, Sweden (AB Ifoverken & Skanska Cement) W EHTJE, Karl Fredrik A /B Rorstrands Porslinsfabriker Lidkoping, Sweden W EID EL , Robert A. (G) 497 Apple Orchard Lane Webster, N. Y . (Bausch & Lomb Optical Co.) W EIDENBAUM , Sherman S. (G) 59 W . Second St., Corning, N . Y. (Coming Glass Works) W EIDLICH , Gilbert (M ) 640 E. Jefferson, Kirkwood, Mo. (Western Machinery & Engine Co.) W EIDM AN, V. Wesley (R) 201 Duncan Ave., Wilmington 3, Del. (E . I. du Pont de Nemours & Co., Inc.) W EIGEL, Robert C. (R) 820 Woodlawn, Mexico, Mo. (Mexico Refractories Co.) W EIL, Edgar H. (E ) Vitreous Steel Products Co. Box 3991, Cleveland 20, Ohio W EIL, Kurt E. Rua Batatais 472, Sao Paulo, Brazil W EINSTEIN, Alex (G) Ednalite Optical Co., Inc. 200 N. Water St., Peekskill, N. Y. W EINTRITT, Donald J. (M) 5122 Pine St., Bellaire, Texas (Baroid Div., National Lead Co.) W EISE, Robert L. (G) 446 E. Second St., Logan, Ohio (General Electric Co.) W EISER, Rosabel V . (B ) 253 S. Brady St., DuBois, Pa. (Jeffers Electronics Div.) W EISKE, Ino (SI) Box 353, Mission, Texas (United Geophysical Corp.) W EISS, E. Joseph (B I) Dept, of Ceramic Engineering University of Texas, Austin, Texas W EISS, W. Russell (R) Wellsville, Mo. (W ellsville Fire Brick Co.) \ n:l de Vidrio, C ji.eas, Venezuela h bf l .(H} . .il lies, Princeton, \ P (HI) ai e., Ames, la. a St. allege) Y, am n an mic Society :J. 1 St., Columbus \ Jr. (B) C t., Santa Crue, l.'.i : O. & Son) * Pi. I}*' ) r !.. (R) I nrick & s (1954) Ltd. k., Canada K, 1. 1a-c 5 i C. (G) nation Corp. i., Toledo 1, Ol. Nt., d M 1 bori. es E. (R ) o., Scientific ! uox 2053, M B ich. . A. cr 1 ell. ,VF) i.Odin China Co. . Va. . J- W) .It* ! .1in China Co. / . Va. n CL (B) : . ics Steel Corp. rei. Center, Monroeville, 1 \N L. T. (R ) *on> Alkali Co., Cementa kc , iv. Uni `Commerce Bldg, clan . 14, Ohio . Ra 1. J. (S ) mit cssed Bricky & Tile 533, Pueblo, Colo! i. , James D . (RJ) Z. c St., Los Angeles if. ldir., McBean & Co.) EL, C. (W ) czel ; lie Co., Box 908 don, N. J. CEL T IL E CO. (C. W en;/elJ 908, Trenton, N. J. T, Nelson E. (W ) encan Potash & Chemical F e h Blvd., Williston P a;-, Y. R, James A. L. srs. Wengers Ltd., Etrur, e-on-Trent, Stafford, Eri NG, W. F. (E) amie Color & Chemical > e 2 9 /, New Brighton, Pa. 4 B B. (S) Jen Brick Co. W . Tuscarawas St., Cam- 1. mio SR, Alan J. (G) W tauga Ave., Coming, N. Y. g Glass Works) a ok ..ere Greenlane n, Derby, England shire Silica Fire Brien Ce.) ward F. (R ) iton Ave., Joliet, 111. s Clay Products Co.) chard R. (B ) 93, Alfred, N . Y. University of New YoP- . c of Ceramics) V, : OOK, J. H . (B) crai Electric Co., Rm. 15 search Laboratory, The K nectady, N. Y. 5 . CRN B R IC K CO. (I. R. Cline, : .... ille, 111. v\ KRN ELECTRIC CO., INC. ! .. W. Scott) 7650 Hawthorne S. lion t i l ago 23, III. V. . CRN ELECTRIC CO., INC. . J. Scott) 2525 Shadelan . . dianapolis 6, Ind. R o s i .... 'J. T FELDSPAR MILLING CO. Magnuson) Box 671 Colo. HOUSE ELECTRIC CORP. :1. Harnish, Jr.) Derry, Pa. E, C. Rogers vW l) 8, Antioch, III. 1 Inc.) EST. , A . E. R. (G F) \ f1 Umicuu-stry , On V Research Foundation i- .5? ^ s park Crescent i'J ' j 1 Ont., Canada " - O. B. (R) Me Products Corp. , Calif. ' ;>h H . (S I ) -'mic Corp., Brazil' Ind. A BRICK CO. - Wiseman) '"'a St., E. / ' T1, W . Va. .. E' , r A . (G F ) i ral Technology State University irk, Pa. <fH as J. 306y i, State College, Pa. bristopher C. H. S bing Plugs Ltd. ' , 1-ondon, S. W . 15, England . >. D . (W ) ` "oy M fg. Div. ay, N ew York 6, N . Y. tflf liant H . (R I) 1' 'd., Cincinnati 31, Ohio `x- '* :ctric Co.) . 'EEL CORP. `-nyder) South Plant Ohio WI ! T. (R) St. "3, Mass. A rsenal) \'V i 1'. (El) c Rd., Parma 29, Ohio mas Assoc.) : T). (R ) * -eer Fireproofing Co. ' `bio w ' R 1 iN G CO. WI i ! ere) Waynesburg, Ohio. well U. (M ) Co., Buffalo A ve. N. Y. ; a . (w i) Metuclicn, N . J. w V y V y V V V j 1 ; V 'o.. Ltd. eighley, England . K. (S F I) ics, Inc., R. R. 3 (G) nr Highway, Apt. 11 Park 30, Mich. :o.) . (B ) s, Tenn. Ixtu Chemical Co.) (RFI) :y Knoll," Entier, Pa. 1 Refractories Co.) ' . Cincinnati 15, Ohio S. (W ) ., Wilkinsimrv Pa. mic & Mfg. Co. nm Co.) ' Westfield, N, J. o.) ' >1in H. ( r.) -cling A- Stamping Co. (1955) ITES ELL, Lysle E. (R) Wellsville, Mo. (W ellsville Fire Brick Co.) : IT FI ELD, Robert E. (R ) Chas. Taylor Sons Co., Box 58 Annex Station, Cincinnati 14, Ohio IITFORD, Robert F. (R) North American Refractories Co. Ashland, Ky. ' ITFORD, William G. (D F ) Box 38, Olympia Fields, 111. (University of Chicago) ' S', Eugene H. (R) .'adding, McBean & Co., Box 3152 raule 14, Wash. M ' NET . John B. (E ) 17426 Norton Ave., Lakewood 7, Ohio (Ferro Corp.) -TAK ER, Clyde M. (W ) : ox 560, N ew Castle, Pa. ' tiiv-rsal-Rondle Corp.) TA KER, G. Ward (W ) ' ade Rd., Ambler, Pa. rsal-Rundle Corp.) ER, Harry (W ) m-Standard, 834 E. Broadway -le 4, Ky. ORE, J. W. (SFI) Vm Polytechnic Institute la sburg, Virginia r: MORE, O. J. (S) ' 'incivjt Clay Products Co. I: State Bank Bldg. -dge, la . ORE, O. J.. Jr. (RI) Co., Worcester 6, Mass. ! ORE, Russell G. (G) gh Plate Glass Co. tcway Center, Pittsburgh 22.-Pa. "amer C. (W ) Electric Co., One River Rd. - tady, N. Y. f hn Simison (E ) ind Rd., R. R. 1 eek, Ky. I Electric Co.) N, U. V. de Cramique Franaise le Rue Seine Oise, France ichard M. (G) nd Ave., Painted Post, N. Y. g Glass Works) Y, Harold (G) ing St., Corning, N . Y. i; Glass Works) 'lerman G. (R) ss Ave-, Pittsburgh 21, Pa. i in-Walker Refractories Co.) . James W . (S ) e Clay Product Co. e,* Ohio David R. (BJ) . Third St., Ames, la. Laboratory, Energy Commission) Mliara P., I l l (M ) nd Lead Products, Inc. ilunan Ave., Box 912 ad, Ind. Joron B. (BF) i l , East Orleans, Mass. , E. D. R iuxite Co. l'rtr, Jamaica, B. W . I. Ian Hugh (EJ) ce Charles Dr. nt., Canada e mels (Canada) Ltd.) '''i dam W ., Jr. (M ) oot' t-.es St. tta i Beach, Calif. . O p.) `, 11. W . V. (G) 1ar ' c Ave., Brackenridge, Pa. ttr.-h Plate Glass Co.) V -E, G. Darby (R ) 6, ' ork, Pa. r.rr Co.) W ILLIAMS, Alan B. (R I) 2233 Pickens Rd., Augusta, Ga. (Babcock &' W ilcox Co.) W ILLIAM S, Arthur E . (G) 1214 Eighth St., Moundsrille, W . Va. (Fostoria Glass Co.) W ILLIAM S, Charles (EJ) 131 North St., Auburn, N. Y. W ILLIAM S. Clyde (R F ) Battelle Memorial Institute 505 King A re., Columbus 1, Ohio W ILLIAM S, George F. (G) Owens-Illinois, Technical Center 1700 N . Westwood Ave., Toledo 1, Ohio W ILLIAM S, Gordon R. (W ) Box 186, Florence, Ala. (Styton Southern Corp.) W ILLIAM S, Harry M.. (W I) Locke Dept., General Electric Co. Charles & Cromwell Sts., Baltimore, Md. W ILLIAM S, John A . (W ) Box 250, Trenton 2, N . J. (Mitchell-Bissell Co.) W ILLIAM S, John C. (W ) Mt. Vernon Way, Whippany, N. J. (Bell Telephone Labs.) W ILLIAMS, Leroy L,, Jr. (E li 3006 Adams Ave., Evansville, Ind. (Seeger Refrigerator Co.) W ILLIAM S, Lloyd D . (G) Pressware Plant, Coming Glass Works Coming, N . Y. W ILLIAM S, Robert A., Jr. (W ) American Encaustic Tiling Co., Inc. 1000 N. Cannon Ave., Lansdale, Pa. W ILLIAMS, Robert B. (W ) 1107 Westwood Ave. Chattanooga, Tenn. (American Lava Corp.) W ILLIAM S, Robert M. (RI) 5809 Royal Oak Ave.,`.Baltimore, Md. (General Refractories Co.) W ILLIAM S, Walter E. (M I) N ew Castle Refractories Co. New Castle, Pa. W ILLIS, James B. (E ) 1355 Crofton Rd., Baltimore 12, Md. (Pemco Corp.) WILLMORE, Tracy A. (R) 1118 W . Illinois St., Urbana, 111. (University of Illinois) W ILLMS, Albert E. (M ) 476 Parker Ave., Hackensack, N. J. (Whittaker, Clark & Daniels, Inc.) W ILLS, Robert E. (R) Box ZZO, Coal City, Illinois (Illinois Clay Products) W ILLSON PRODUCTS, INC. (Thomas A. W illson) Box 622 Reading, Pa. W ILLSON, Thomas A. (G) Willson Products, Inc., Box 622 Reading, Pa. W ILSO N, Bonum S., Jr. 704 Rivers Ave., Charleston 43, S. C. W ILSON, Calvin S. (G) Libbey Glass Div., Owens-IUinios Ash St. & Wheeling R.R. Toledo 1, Ohio W ILSON, Charles L. (S ) 217 N . Meridian St., Brazil, Ind. (American Vitrified Products Co.) W ILSON, George (R) 131 Edison Ave., New Castle, Pa. (New Castle Refractories Co.) W ILSON, Hugh H ., Jr. (R I) Clemson College, Olin Hall Clemson, S . C. W ILSON, Maurice S. (R) Spring Lake Rd., Wallingford, Conn. (American Refractories & Crucible Corp.) W ILSO N, Robert Charles (W I) 791 Wedgewood Dr., Apt. 3 Columbus 4, Ohio(Ohio State University Engineering Experiment Station) R oster 95 klLSON. R. T. (S ) W OODBRIDGE, Thomas C. H C. G. (W) ' Ferris Brick Co., Box 188 38 Stirling Rd. Is, luc. Ferris, Texas Hayes, Middlesex, England ii . . J. tflNBURN, H . L. (S ) (British Bath Co. Ltd.) Calif. e to; Box 1369, Little Rock, Ark. (\Vinbum Tile M lg. Co.) lNCHELL, Richard (K) 41854 Bartram, New Castle, Pa. (Shenango China, Inc.) itlNEM ILLER, William F. (R ) \ 11 Ardmore Road, Worcester 9, Mass. (Norton Co.) L jN K E L , M. Lee (S ) 3 Champion Brick Co. 7600 Pulaski Highway Baltimore 6, Md. V lN S H IP , Lee C. (G ) I Sylvania Electric Products, Inc. 1 Emporium, Fa. Win ter , Aniuta i Institut d'optique Thorique $' et Applique, 3, Bld Pasteur Paris (1 5 ") France Wis c o n s in p o r c e l a in c o . (L. A. Stohl) 120 -Lincoln St. Sun Prairie, Wise. WISE, L . G. (X ). i E. I. du Pont de Nemours & Co., Inc. 3 Chemical Dept., Experimental Sta. j Wilmington, Del. IfflSEM AN, Claude F . (S ) ^ W est Virginia Brick Co. S 442 Virginia S t, E. 3 Charleston 24, W . Va. WOODRUFF, Ernest W. (R) Refractory Products Co. 910 Custer Ave., Evanston, 111. W OODS, C. J. (B ) North American Philips Co., Inc. Research & Control Instruments Div. 7S0 S. Fulton Ave., Mt. Vernon, N. Y. WOODS, William J. (W ) Box 627, Lewistown, Pa. (Pennsylvania Pulverizing Co.) W OODS, William J., Jr. (M ) Pennsylvania Pulverizing Co. Two Gateway Center Pittsburgh 22, Pa. W O O D V IL L E LIM E PR O D U C TS CO. (J. Robert Cowell, Jr.) 2140 Jefferson Ave., Toledo 2, Ohio WOODWARD, Roger (I) 861 Euclid Ave., Elmira, N . Y. WOODW ARD, Thomas R. (W ) 2SS8 Oakwood Ave., Zanesville, Ohio (Elgee Potteries, Inc.) W OOLDRIDGE, Morris L. (R ) Owens-Corning Fiberglas Co. Glass Research, Newark, Ohio WOOLEY, Seward E. (R I) 6 Westbury Bldg., 66 E. Cliff St. Somerville, N . J. (Johns-Manville Research Center) V. (S) iucts . Blvd. . I lif. ".i'n C,,iu<Rd?ble Co. Jersey City 3, N. j . (RD . (Indiana) ca rch ;Jcpt. 1 Ave.. Whiting, l . ) al Division 1 Dye Corp. ; New York 6, N. Ii } y I itauo (W ) .ve., Arlington, N. hug Cotp.) * 1. eo (G) \ , New Y ork 24, ; . V. b ., Ltd.) -O t lute, Science Fa. iv r-ity - t ; a , Japan i i T. fv / ! aigaku >N ifflSHOSKI, I. Stanley (R) Industrial Heating 1400 Union Trust Bldg. W OOTEN, John H. (S) Elgin-Butler Brick Co., Elgin, Texas W OOTEN, Richard M. (GJ) itc of Tech nolog ) ityuro-K u, Toky . A. (S) Pittsburgh 19, Pa. 10 Columbia Ave., Vineland, N. J. r.m icos, S. A. WISS, J. E. (M FI) (Kimble Glass Co.) ' Monterrey, N. L., M . ico 1339 Lincoln Rd., Columbus 12, Ohio WORCESTER ROYAL - :1 J. (B) ustoa me' (Consultant) ffITMER, Frank (G) 612 W . Main St., Woodville, Ohio PO R CELAIN CO., LTD. (Joseph F. Gimson) Royal Porcelain Works R actorj' Porcelain C 11 Pa. y (G) ITY (Ohio Lime Co.) Worcester, England Corp. ffITSCHEY, Ray A. (R) W ORCESTER, W . G. (X F I) i. i. .. Rd., New Rochelle, V. b A. P . Green Fire Brick Co. 720 Sask. Crescent E. (G) V Mexico, Mo. Saskatoon, Sask., Canada ii -2 Co., Moundsvillc, \V. .a . ct- WITTER, Raymond B. Apto. 4092--Cdrreo de! Este WORK, Lincoln T . (M ) IS N . Crescent, Maplewood, N . J. f.i. l a.... pei i-cho, Tsurum i-ku apan Cliacaito-Caracas, Venezuela (Consulting Engineer) (Fabrica de Productos Ceramicos) WORTHINGTON CORP. Co.) - WITUCKI, Robert M. (G) (Herbert E. Gallison) : A. (S ) 4 W . Fifth St., Corning, N . Y. Industrial Mixer Div. 1 v .cs, Concordia, Kar.s- (Corning Glass Works) 'WITZEMANN, A. W . (W ) Plainfield, N. J. F. (G) nt.. la.ss Works. Inc., box o 220 Allegheny Ave., Kittanning, Pa. WRIGHT, Edward P. (RI) tei^.-irg, W . Va. (Eljer Co.) Box 387, East Liverpool, Ohio i . i Iowa id S. (B ) WOLCOTT. J. David (N ew Castle Refractories Co.) . 1, Cl adds Ford, P a . R. R. 3, Corning, N. Y. WRIGHT, Harold D. (W ) i du Pont de Nemours & Co., inc.) WOLD, T. (W ) 319 N. Tenth St., Olean, N . Y. V. i James Smith & Stone, Ltd. (Olean Tile Co.) . C. St-in & Co. Ltd. Georgetown, Ont., Canada WRIGHT, H. D. (B) ucl Wo: ks, Linlithgow, Scot and WOMELDORPH, R. C. (G) Endevco Corp., 689 S. Fair Oaks Ave. . James . (S) 200 N . 29th St., Newark, Ohio Pasadena 2, Calif. our Re search Foundation (Owens-Coming Fiberglas Corp.) WONGSOREDJO, Rasmadji WRIGHT, Jack (D ) University of Omaha 7 Fc' ere 1 St., Chicago 1 6 , 111. i Balai Penjelidikaa Keramik Dept, of Fine Arts s J C. (G) (Ceramic Institute) 60th & Dodge Sts., Omaha, Nebr. ..iguc.se bend Club D jl. Raya Timur 340 WRIGHT, J. E. . logucbc bend, Calif. Bandung, Indonesia Messrs. A. G. Hackney & Co., Lid. . iiaywaid Scientific Glass Corp.) WOOD, Clifton E. (W ) Fairfield Pottery, Hanley Y uU G, Robert W . (G) 304y i E. Rockwell, Fenton, Mich. Stoke-on-Trent, England American Optical Co. (A. C. Spark Plug Div., WRIGHT, John C. ` iiass Research Lab. General Motors Corp.) c /o Mrs, Sutton, Alfred Station, N. Y. Southbridgc, Mass. WOOD, Kenneth T . (R ) 102 Grace Blvd., Painted Post, N . Y . WRIGHT, J. W. (GI) 2703 Densmore Dr., Toledo 6, Ohio ' NC, Stanley H . (R I) Cleveland Q uarries Co., Amherst, M.io (Corning Glass Works) WOOD, Lewis C. (R ) (Owens-Illinois) `G, Vincent M. (G) .usch & Comb Optical Co. 1219 E. Fourth S. WRIGHT, Roy E. (X ) oS St. Paul St., Rochester 2. N. Salt Lake City 2, Utah Philadelphia Quartz Co. of Calif. ; j UN G, W illard G. (W I) I (Kennecott Copper Corp.) Sixth & Grayson St. W. A. Case & Son M fg. Co. WOOD, Llewellyn, Jr. (S ) Berkeley 10, Calif. Robinson, 111. Carrington Woods, R. R. 4, Box 209 WRIGHT, Thomas S. (R) YOUNG, W . O. (W I) Milledgeville, Ga. 485 Monterey Box 575, Honeoye Falls, N. Y. (Oconee Clay Products Co.) North Vancouver, B. C., Canada (Victor Insulators Div., WOOD, Russell K. (W I) (Fairey & Co., Ltd.) I-T -E Circuit Breaker Co.) 3900 E. California St. W UELLNER, Joseph F. (E ) UNGBLOOD, Charles J., Jr. (G) ; Pasadena 10, Calif, 1602 Galion Ave., Cleveland 9, Ohio Mississippi Glass Co. i (Wallace China Co., Ltd.) (Ferro Corp.) 88 Angelica St., St. Louis 7, i . 4Vol. 34. No. 10 (1955> v 1< (G) Dye Corp. . (D) ., 17100 First Pt. a. CL U'F' fEi?, z A. (W) fatawan, N . J. ig . Co.) ..11. (W ) Inc., New ("astir., Pa. ;ei P . ( S ) a t st rr i, Texas '< Inc.) c . (W ) t., Pomona, Calif. . Mfg. Co.) D '/ineland, N . J. >-) a, Inglewood, Calif. >., Inc.) : alii/ ER. rwin F.- (M ) 1 m Dr. inh.i !. ' mg Island, N . Y . . F. m nfeld A Co., Inc.) >SS. air'tel (R F ) aer Pr ucts Div. tioi Bn:cau of Standards A on 4?, D. C. i'C E, Ellis J. (R ) ilfi Wheel Co. 5 . Sacramento Blvd. icr- o 12, 111. El i, Robeit L . (M ) ad mlustri -s Assn. 0 I ixington Ave. w 1A rk 17. N . Y. 1 :arik ' '"I) ni- GIs Works n b., Coming, N . Y . } avid ( . (W I) ding P <1.. Zanesville, Ohio cl n McCcr Pottery Co.) 'lb AN, . Wiltiam F. (B ) *6 'cNichnlas St. 1C* all 36, Ohio cu 1 Electric Co., s hire Div.) c t?c H (E l) ( railh Virp. . 27 Milwaukee, W ise. .(1 iK, r \ f" Ilinois 700 N . Westwood V 1, Obi ZLOTNICK, Herbert (BJ) Raytheon Mfg. Co., Research Div. Waltham 54, Mass. ZNEIMER, Jod E. (BJI) 108 Duff St., Watertown, Mass. (Raytheon M fg. Co.) ZOLLMAN, James A. (GJ) 1303 Willow St., Pike, Lancaster, Pa. (Radio Corp. o f America) ZORZI, Eugene R. (M) C. Tennant, Sons & Co., 100 Park Ave. New York 17, N . X- ZUDNAK, Stephen J. (W ) Box 1599, Trenton, N . J. (General Porcelain Co.) ZUMWALT. Donald A . (E) 904 E. Siauson Ave. Los Angeles 22, Calif. (California Metal Enameling Co.) ZVA NUT. Albert J. (M) .Lincoln Electric Co. 22801 St. Clair Ave., Box 3115 Cleveland, Ohio ZVANUT, Frank J. (W I) 14533 Bayes Ave., Lakewood, Ohio (Godfrey L. Cabot, Inc.) ZW ERMANN, Carl H . (BFI) 806 W . Main St., Robinson, 111. . ZWETSCH, Artur Villeroy & Boch Mettlach/Saar, Germany i Addenda " , George I.. d, N . Y. l i r a s , John 1?., m ss rhnsetts ` istitute of Technology PARTINGTON, Philip A. Box 787, Alfred, N. Y. I >. ' 1 , . ' rssachusetts Ave. POHLE, Joachim H . P . I, N . Y. m' i l,;t j.-, ss, Box 176, Alfred, N. Y. . Jr. (G) " David 1.. RUBIO, Diego P. l ord Glass Co. or 37, A lfr i, N; Y. Box 623, Alfred, N . Y. ay, Toledo 5, Ohio .eorge E . (R ) Joseph M., Jr. SIEBACH, Ralph E. i Co., Box 4.10 linton F West Caldwell, N . J. Box 826, Alfred, N. Y. ,io i, Thor s W. SM ITH, Ronald J. ard (G) ", Alfred, N . Y. Box 847, Alfred, N. Y. v ic., 504 Fifth Ave. . Max SM ITH , -Sidney L. M. Y . ' j u i" 1: n t i w e g 9 16 Munson St., LeRoy, N . -Y. v >. (B ) ' C- - y SOW ERS. Robert M. (G) -nnpa. Chemistry Dept. "I : 1 17155 Shaftsbury, Detroit 19, Mich. . F. Alfred, N . Y. (Ford Motor Co.) attic 8, W ash. , 1 "<! , Jr. (G) tt C.la Works STAPP, John A., Jr (G) 1 n . (B) r> `Jut. yy Dept., Corning, N. Y. Linde Air Products Co. i on Co. iv. H . rbert' M. (S ) day Pr A ts Co., Inc. E. Park Dr. and Woodward Ave. Tonawanda, N. Y, -nton 10, N . J. h r I a h , i. SULENS. Henry A. (M) V. , Seattle 5, Wash. ' `Jar M Ceramic Supply Co., Dlv. Ferro Corp. Ai i ! r Co. Box 151, Crooksvllle, Ohio m il, N. V. l'v in ' inithfield St. , W H IT E H E A D . Leland E. Box 6122, Va. Tech. Station mil, Apartado A-10 `or . ( 11 . N_ Y . Virginia Polytechnic Institute Blacksburg, Va. `.VC., Joliet, III.... . . . \ ri .A) c > '!. Y. W ILLIAM S, Robert E. 710 W . 21st St., Austin, Texas . ^ n 'o r .r ) .' R oster 9 9