INDEX TO ADVERTISERS IN THIS ISSUE Varian Associates Hoefer, Dieterich & Brown, Inc. The Victoreen Instrument Co Palm & Patterson, Inc. Voland Corp Lescarboura Advertising, Inc.
16:151 24-25 219
Arthur P. Watts Advertising Sales Manager, AC
Denver 90203 . . . Robert H. Heidersbach, McDonald-Thompson, Inc., 846 Lincoln St., 303-825-3325
Clay S. Holden Assistant Advertising Sales Manager, AC
Houston 77006 . . . Frank I. Vickery, Mc Donald-Thompson, Inc., 3130 Southwest Freeway, 713-529-6711 Tulsa 74114 . . . Max C. Nelson, McDonaldThompson, Inc., 570 South Harvard, 918-742-9961 Great Britain and Western Europe . . . Brayton Nichols, The American Magazine Group, 44 Conduit Street, London W. 1, England
Waters Associates, Inc OBC David B. Tibbetts John Wiley & Sons, Inc 149 Needham & Grohmann, Inc. Wilkens-Anderson Co 173 Mandabach & Simms, Inc. Wilkens Instrument & Research, Inc.. . 65-68 Bob Barriskill Advertising Wilks Scientific Corp 198:199 H. Edward Oliver Associates, Inc.
SALES REPRESENTATIVES
Japan . . . Genzo Uchida, Bancho Koheki Co., Ltd., 5-5 Hayabusa-cbo, Chiyoda-ku, Tokyo, Japan
New York 10022 . . . Arthur P. Watts, Clay S. Holden, Sam W . Percy, Robert N. Gillespie, Reinhold Publishing Corp., 430 Park Ave., 212-688-8600 Chicago 60602 . . . Eugene P . Eldridge Reinhold Publishing Corp., I l l W. Washington St., 312-720-8467
PROMOTION DEPARTMENT Robert Voepel Promotion Manager
Cleveland 44114 . . . William N. Wham, Reinhold Publishing Corp., East Ohio Bldg., 1717 East 9th St., 216-771-4011 San Francisco 94105 . . . Morton McDonald, McDonald-Thompson, Inc., 625 Market St., 415-397-5377 Yellow Springs Instrument Co., Inc.. Odiorne Industrial Advertising, Inc.
134
Los Angeles 90005 . . . M. Jeffrey Kaufman, McDonald-Thompson, Inc., 1313 West 8th Street, 213-483-1304 Portland 97221 . . . Francis M. Eaton, Mc Donald, Thompson, Inc., 2035 S.W. 58th Avenue, 503-292-8521
Carl Zeiss, Inc., Basford, Inc.
PRODUCTION DEPARTMENT Alfred E. Gall Advertising Production Director, ACS Publications Anne Forrest Advertising Production Manager, Analytical Chemistry
166
GREASELESS HIGH VACUUM GLASSWARE
Laboratory Supply Center 222 Burdick & Jackson Laboratories Clark Micro analytical Laboratory Eastern Chemical Corp. General Atomic Div., General Dynamics George W. Gates & Co. Greiner Scientific Corp. (Manostat) Gollob Analytical Service, Inc. Κ am an Nuclear LaMotte Chemical Products Co. Petroleum Analytical Research Corp.
Multi-Ridge 0 RING JOINTS Delmar-Urry design is ideal for any apparatus where grease is a problem. Multiple pressure ridges applied to each side of the Viton 0 Ring secure vacuum systems down to lOr 6 mm Hg. For use in temperatures from -40° to 500°F and pressure systems up to 40 PSI.
NEW STOPCOCK DESIGN This new Delmar-Urry unit has a precision bore body which allows interchanging plugs and other parts. Features include: • Viton elastomer Ο Rings · Precision bore body • Pressure 10-" mm Hg. • Temperature range -40° to 500°F • Sizes 0 4 mm opening and 0-10 mm opening Ask for Catalog 60-D4A
REINHOLD PUBLISHING CORPORATION Advertising Management for the American Chemical Society Publications 430 Park Ave., New York, N.Y. 10022 Cable Address:
Delmar
REINPUB NYK
Thomas N. J. Koerwer Advertising Sales Director, ACS Publications
SCIENTIFIC LABORATORIES, INC 317 MADISON ST., MAYWOOO, ILL.
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VOL 38, NO. 2, FEBRUARY 1966 ·
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