why take changes? use
TAYLOR COMPARATORS for FAST, ACCURATE
pH, CHLORINE, PHOSPHATE TESTS to insure precise control
Taylor Comparators allow you t o make fast, accurate colorimetric tests for p H , chlorine, phosphate or nitrates, etc. right on the spot. In a matter of minutes you get correct operational data t o help you determine the exact amounts of chemicals needed to properly control crystallization, bleaching, precipitation, extraction or waste treatment. To use, simply fill the middle tube with treated sample, move color standard slide across until sample matches one of the standards. Values are then read directly from the slide. Taylor Comparators are durable, lightweight, portable. M a n y serve for several determinations with only a change of color standard slides.
COLOR STANDARDS GUARANTEED Be sure to use only Taylor reagents and accessories with Taylor Comparators to assure accurate results. All Taylor liquid color standards carry an unlimited guarantee against fading. SEE Y O U R DEALER f o r T a y l o r sets o r i m m e d i a t e replacement o f supplies. W r i t e direct f o r FREE H A N D B O O K " M o d e r n p H a n d Chlorine C o n t r o l " . Gives theory a n d a p p l i c a t i o n o f p H control. Illustrates a n d describes complete T a y l o r line.
W. A. TAYLOR
AND CO. 7 3 0 2 YORK RD. · BALTIMORE-4, MD.
130 A
ALPHABETICAL LIST OF ADVERTISERS Allen-Bradley C o . . , 35 Agency—The Fensholt Adv. Agency, Inc. Allied Chemical Corp., Barrett Division.78-79 Agency—McCann-Erickson, Inc. AHied Chemical Corp., General Chemical Div 8 Agency—Atherton & Currier, Inc. Allied Chemical Corp., Nitrogen DiviX05 sion s # Agency—G. M. Basford Co. Allied Chemical Corp., Semet-Solvay Petrochemical Div 65 Agency—Atherton & Currier Inc. Allied Chemical Corp., Solvay Process Division 83 Agency—Atherton & Currier, Inc. Aluminum Co. of America 77 Agency-Ketchum, MacLeod & Grove, Amei-onaV To™ ιq ^ n c ^ n ^ r s ^ M V C o n n e l l Adv.'·· " Agency, Inc. American Instrument Co., Inc 34 Agency—Advertising Inc. of Washing ton Ampco Metal, Inc 92 Agency-Hoffman & York, Inc. . L . „ . _ ' _a Autoclave Engineers, Inc 18 AS C mieS & McKbmey Adv TB Â^? ' Agency
Bailey Meter Company 68 Agency—Fuller & Smith & Ross, Inc. Barrett Division, Allied Chemical Corp.. 78-79 Agency—McCann-Erickson, Inc. Bendix Aviation Corp., Cinn. Div 22 Agency-MacManus, John & Adams, Inc. A. M. Byers Company 74 Agency-Ketchum, MacLeod & Grove, Inc· Cameron Iron Works, Inc 23 Agency-Boone and Cummings The Carborundum Co., Refractories Div 120 Agency—G. M. Basford Co. Celanese Corporation of America. . . 123:IBC Agency-Ellington & Co., Inc. Centrico, Incorporated. . 127 Agency-Harold Schor Associates Centrifix Corporation 100 Agency-Palm & Patterson, Inc.
Despatch Oven Company 17 Agency—Foulke Agency, Incorporated Doerr Glass Co 125 Agency—George F . Walsh Advertising Agency Dow Corning Corporation 98 Agency—Church & Guisewite Adv. Inc. Duriron Company, Incorporated.. OBC Agency-Kircher, Helton & Collett, Inc.
Eastman Chemical Products, I n c . . . . . . . Agency-Fred Wittner Advertising Eimco Corp Agency-Matsie Company Electric Steel Foundry Co Agency-Cole & Weber, Inc. Ertel Engineering Corp Agency-W. N. Hudson, Advertising
10 20 14 132
Fansteel Metallurgical Corp 117 Agency^Symonds, MacKenzie & Co., 110 I · Firestone Plastics Co 90 Agency-Grey Adv. Agency Foote Mineral Co 104 Agency—The Harry P. Bridge Co. Foxboro Company 45 Agency—Noyes & Company The French Oil Mill Machinery Co.. . . 126 Agency—Central Advertising Agency Frick Company 129 Agency—Waynesboro Adv. Agency
INDUSTRIAL AND ENGINEERING CHEMISTRY
General American Transportation Corporation, Louisville Drying Mchry. Unit , '. . Agency-Edward H, Weiss and Co. General American Transportation Cor. P
