VOLUME
2 0, N O .
11, N O V E M B E R
43 A
1948
INDEX TO ADVERTISERS Allied Chemical & Dye Corp Aloe Co., A. S American Instrument Co American Platinum Works Amersil Co., Inc Angel Co., Inc., H. Reeve Applied Research Laboratories Atlas Electric Devices Co Autoclave Engineers Inc Baker & Adamson Reagents Baker Chemical Co., J. Τ Bausch & Lomb Optical Co Blaisdell Pencil Co Braun Corp BuehlerLtd Buffalo Apparatus Corp Central Scientific Co Chemical Rubber Co Coors Porcelain Co Despatch Oven Co Dietert Co., Harry W Eastman Kodak Co Eberbach & Son Co Eimer & Amend Fisher Scientific Co Fish-Schurman Corp General Chemical Div General Laboratory Supply Co Glas-Col Apparatus Co., Inc Greiner Co., Emil Hamilton Mfg. Co Harshaw Chemical Co Hellige, Inc Hevi Duty Electric Co Hoskins Mfg. Co Kimble Glass Klett Mfg. Co Laboratory Construction Co Lane-Wells Co LaPine & Co., Arthur S Lindberg Engineering Co Machlett & Son, Ε Mallinckrodt Chemical Works Merck & Co., Inc Nalge Co National Technical Laboratories New York Laboratory Supply Co., Inc North American Philips Co., Inc Owens-Illinois Glass Company Peterson & Co., Inc., Leonard Photovolt Corp Precision Scientific Oo Radio Corporation of America Rubicon Co Sargent & Co., Ε. Η Schaar & Co Schleicher & Schuell Co., Carl Scientific Glass Apparatus Co., Inc Southern Scientific Co., Inc Thermo Electric Mfg. (Jo Thomas Co., Arthur H Welch Scientific Co., W. M Wilkens-Anderson Co Will Corp Wisconsin Alumni Research Foundation
46 A 6A 24 A:32 A 31 A 43 A 33 A 17 A 40 A 37 A 46 A 2A 44 A 36 A 39 A 34 A 29 A 5A 34 A 32 A 41 A 27 A 25 A 31 A 22 A 22 A 30 A 46 A 26 A 9A 12 A 35 A 14 A 26 A 13 A 7A 11 A 28 A :39 A 41 A 8A 26 A 19 A 38 A 16 A 4A 43 A 15 A 36 A 40 A 11 A 28 A 32 A 18 A:37 A :45 A 10 A 37 A 21 A 33 A 36 A 38 A 29 A 28 A 20 A 35 A 30 A 29 A 30 A
DIRECTORY
Laboratory Supply ( Center Oargille; R, P. Crystal Research Laboratories, Inc. Rocky Mountain Research, Inc. Sorvall, Inc., Ivan Wisconsin Alumni Research Foundation
New AMERSIL ELECTRIC LABORATORY IMMERSION HEATERS The application shown is for producing a suit able pilot scale chemi cal reaction where concentration of acids and extreme accuracy of heat control are desirable. This is but one of many practical applications of Amersil's fused opaque quartz heater for producing high heat efficiencies (up to 200 watts per square inch of heater shell surface.) Write Department "I" today for new bulletin on Amersil heaters. *Trade Name Registered
Inc.
ENGELHARD HILLSIDE 5, N. J.
CHESTNUT AVENUE
The House of NALGE . . . A RELIABLE SOURCE FOR QUALITY RUBBER TUBING N A L G E laboratory tubing is hand wrapped. Manu factured of 1 0 0 % pure rubber, this tubing is designed especially for laboratory use. N A L G E tubing will preserve its original softness and does not deteriorate or harden over a considerable length of time. A selection of NALGE top quality §1016
I.D. 3/16" 1/4" 5/16" 3/8" 5/8" 3/4"
Wall 1/lff" 3/32" 3/16" 1/8" 1/4" 1/4"
tubing.
Price per 100ft.* $12.00 $14.10 $27.80 $22.60 $57.80 $66.90
*Less 7 ' / 2 % on 100 ft, orders. Mail coupon for prices and discounts on complete NALGE line.
IMMEDIATE DELIVERY from
42 A
COMPANY
AMERSIL
THE NALGE COMPANY 625 S. Goodman St., Rochester 7, N. y
AMERICA'S Name
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