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INDEX TO ADVERTISERS IN THIS ISSUE RCA Electronic Components & Devices. 44 Al Paul Lefton Company Reinhold Book Division 61 Rodder Instruments Corp 165 S iltern Graphic Sage Instruments, Inc 83 Lescarboura Advertising, Inc. E. H. Sargent & Co 41:106:147 Sidney Clayton & Associates, Inc. Scientific Glass Apparatus Co., I n c . . . . 125 Scientific Industries, Inc 118 N. Kermin Advertising Scientific Products, Div. of American Hospital Supply Corp 168 Alex T. Franz, Inc. Somar Laboratories, Inc 69 Ivan S or vail, Inc 87 A. B. W. Toft & Co. Stanford Linear Accelerator Center. . . . 154 Techdata, Inc. Supelco, Inc 109 Barash Advertising Techne ( Princeton), Ltd 151 Technical Equipment Company 70 Tall ant/Yates Advertising, Inc. Technicon Controls, Inc 105 Mediad, Inc. Texas Nuclear Corp., Subsidiary of Nu­ clear-Chicago Corp 68:76:103 Sidney Clayton Associates, Inc. Thermolyne Corp 154 E. R. Hollingsworth & Associates Thermovac Industries Corp 160 M. B. Brucker Co., Inc. Arthur H. Thomas Co 144:145 Tracerlab, A Div. of Laboratory for Electronics, Inc 96 Hepler & Gibney, Inc.

Tracor, Inc Weekley and Valenti, Inc. Henry Troemner, Inc AUyn H. Jacobson

6:18

Wilks Scientific Corp A. B. W. Toft & Co.

159

Ultra Carbon Corp 148 Church and Guisewite Adv., Inc. Unicam Instruments Ltd 49-52 Weekley & Valenti Adv., Agency Union Carbide Corp., Carbon Products Div 74 J. M. Mathes, Inc. Varian Aerograph 91 Bob Barriskill Varian Associates Cary Instruments Div 24:120 The Bowes Company Analytical Instruments Div 88:123 Recorder Div 110 Hoefer, Dieterich & Brown, Inc. Vickers Instruments, Inc 86 Robert Hartwell Gabine The Victoreen Instrument Co 46—47 Palm & Patterson, Inc. Warner-Chilcott Laboratories, Instru­ ments Div 8—9 Bonfield Associates, Inc. The Warner & Swasey Co 143 Taube/Violante, Inc. The Welch Scientific Co 38 Armstrong-Desmond Advertising, Inc. Westronics, Inc 40 Evans Young, Wyatt Advertising John Wiley & Sons, Inc 80 The Lampert Agency, Inc. Wilkens-Anderson Co 67 Mandabach & Simms, Inc.

Yellow Springs Instrument Co., Inc.. . . 136 Odiornc Industrial Advertising, Inc. Laboratory Supply Center 166 Burdick & Jackson Laboratories Eastern Chemical Corp. William J. Hacker & Co., Inc. Hill Engineering & Manufacturing Co. LaMotte Chemical Products Co. Oriel Optics Penn-Chem Corporation Petroleum Analytical Research Corp. Southwestern Analytical Chemicals REINHOLD PUBLISHING CORPORATION A Subsidiary of Chapman-Reinhold, Inc. Advertising Management for the American Chemical Society Publications 430 Park Ave., New York, Ν. Υ. 10022 Cable Address: REINPUB NYK Advertising

Thomas N. J. Koerwer Sales Director, ACS Publications

Arthur P. Watts Advertising Sales Manager, AC J. Barry Stanford Assistant Advertising Sales Manager, AC

SALES REPRESENTATIVES New York 10022 . . . Arthur P. Watts, J. Barry Stanford, Sam W. Percy, William N. Wham, William L. Chapman, Reinhold Publishing Corp., 430 Park Ave., 212-688-8600 Philadelphia 19107 . . . James A. Byrne, Reinhold Publishing Corp., 12 So. 12th St., 215-922-0346 Chicago 60603 . . . Eugene P. Eldridge, Reinhold Publishing Corp., 10 So. La Salle St., 312-726-1282 Cleveland 44114 . . . Joseph C. Hoopes, Reinhold Publishing Corp., East Ohio Bldg., 1717 East 9th St., 216-771-4011 San Francisco 94109 . . Denis A. Cardone, Reinhold Publishing Corp., 1255 Post St., 415-771-7044 Los Angeles 90045 . . . Clay S. Holden, Reinhold Publishing Corp., 8939 So. Scpulveda Blvd., 213-776-0552 Denver 90203 . . . Robert H. Heidersbach, Roy McDonald Associates, Inc., 846 Lincoln St., 303-825-3325 Houston 77006 . . . Frank N. Vickrey, Roy McDonald Associates, Inc., 3130 South­ west Freeway, 713-529-6711 Tulsa 74114 . . . Max C. Nelson, Roy Mc­ Donald Associates, 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 Japan . . . Bancho Koheki Co., Ltd., 8, Shinano-machi, Shinijuku-ku Tokyo, Ja­ pan

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