FOR
LABORATORY
ALWAYS
SPECIFY
O R FIELD USE
THE
INDEX TO ADVERTISERS IN THIS ISSUE
ORIGINAL
DRUMMOND
"MICROCAPS" (Disposable micro-pipettes)
τ
•
Guaranteed accurate to 1 % .
•
No guesswork—available in 3 6 standard sizes— from 1 to 100 lambdas.
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Special sizes made to your order.
•
Easiest to use—no need to fill to a line. maximum accuracy every time.
•
M a y also b e used with a rubber suction tube in stead of a bulb.
You get
•
Eliminates the possibility of contamination.
•
Economical enough to use once and discard.
SEND FOR SAMPLES PRICES: Sizes from 1 to 5 0 lambda inclusive, $ 4 . 5 0 per vial of 1 0 0 , including bulb assembly. Sizes over 5 0 to 1 0 0 lambdas, $ 5 . 5 0 per vial of 1 0 0 . Quantity discounts: less 1 0 % in lots of 1 2 vials or more. 1 5 % in lots of 1 0 0 vials or more.
M a d e in U.S.A. by
DRUMMOND SCIENTIFIC CO. 5 0 0 Parkway
·
Broomall, Pennsylvania 1 9 0 0 8
* Pharmacia Fine Chemicals, Inc 33 Paul Klemtner & Co., Inc. Philips Electronic Instruments. . , 90 Anders Advertising, Inc. * Phoenix Precision Instrument Co 59 Product Promotions Agency, Inc. «Photovolt Corp 88:193 Mohr & Co., Inc. «Pierce Chemical Co 179 Advertising Design * Polyscience Corp 36:144 «Pope Scientific Co 188 Max H. Mayer «Precision Gas Products, Inc 188 Tek-Mark, Inc. * Precision Scientific Co., Subsidiary of GCA Corp 169 Tri-State Advertising Agency, Inc. Princeton Applied Research Corp 16 Mort Barish Associates, Inc. Professional Tape Co., Inc 184 Robert Peterson Advertising Agency «Quinton Co., Div. of Merck Co., Inc.. Kumrill-Hoyt, Co., Inc.
47
Sadtler Research Laboratories, I n c . . . . 81 Romer & Company, Inc. «Ε. Η. Sargent & Co 49:123:163 Sidney Clayton & Associates, Inc. «Carl Schleicher & Schuell Co 32 Wildrick & Miller, Inc. «Sehoeffel Instrument Co.. . . . . . . . . . . 112 Cristina Agency «Scientific Glass Apparatus Co., Inc.. . 57 Scientific Products, Div. of American Hospital Supply Corp 26 Alex T. Franz, Inc. e Shimadzu Seisakusho, Ltd 136 New Asia Trading News Agency, Ltd. «Siemens America, Inc 177 Clinton E. Frank, Inc. «Sigmamotor, Inc 182 Gelia and Wells, Inc.
Circle No. 25 on Readers' Service Card
«Techne Inc 174 «Technical Equipment Corp 124 Buchen Advertising, Inc. «Texas Nuclear Corp., Subsidiary of Nuclear-Chicago Corp 44:104 Sidney Clayton Associates, Inc. «Thermolyne Corp 92 E. R. Hollingsworth &: Associates «Arthur H. Thomas Co 160 Tokyo Shibaura Electric Co., Ltd 119 New Asia Trading News Agency «Torsion Balance Co 46 Michel-Cather, Inc. «Tracerlab 176 Bonfield Associates «Tracer, Inc 7 Weekley and Valenti, Inc. «Henry Troemner, Inc 77 Greenfield-Ullman, Inc.
the versatile LOOMIS laboratory press • Designed and engineered for multi ple laboratory use. • Forms KBr pellets and X-ray pellets. • Plastic molding and forming opera tion. • Adapts to extrusion and isostatic pressing. • Quick changeover with handwheel for accurate change of opening.
Loomis 20 ton press with compact power unit. 30 and 50 ton models also available from stock.
• Sturdy design and construction protects expensive dies. Does all kinds of testing. Call or write:
H
ΜΗ
MIDVALE-HEPPENSTALL PRESSURE
EQUIPMENT
Nicetown, Philadelphia, Pa. 19140
DIVISION
·
ANALYTICAL CHEMISTRY
141
«Vacuum/Atmospheres Corp 36 Farnell & Polk Advertising, Inc. «Varian Aerograph 50 Bob Barriskill «Varian Associates Cary Instruments Div IFC Jay Chiat & Associates «Varian Associates 125:151 Botsford, Constantine & McCarty, Inc. «Victoreen Instrument Co 31 Palm & Patterson, Inc. «Wang Laboratories HO Impact Advertising Inc. «Waters Associates, Inc. OBC Studio D., Inc. «Welch Scientific Co 108 Armstrong-Desmond Advertising, Inc. Whittaker Corp., Gencom Div 32 A. D. Adams Advertising, Inc. «John Wiley & Sons, Inc 113 Ed McLean & Co., Inc. «Wilkens-Anderson Co 94 Mandabaeh and Simras, Inc. Will Scientific Inc.. . . . . . . . . . . . . . . . . 172 Hart-Conway Co., Inc.
Area Code 215 225-5000
Subsidiary of HEPPENSTALL COMPANY, Pittsburgh, Pa. Circle No. 191 on Readers' Service Card 192 A
Unitron Instrument Co Van Christo Associates
*See ad in ACS Laboratory
Guide
