V O L U M E 2 2 , N O . 1, J A N U A R Y 1 9 5 0 39A

A Penny An Impression . . . That's just about what it costs to run a one-inch advertisement every month for a year in the Laboratory Supply Center of Analytical Chemistry.

For the price of a government penny post­card (before you print any message on it), you can attain :

Readership by over 29,000 techni­cal men involved in analysis and control work in both plant and laboratory.

Attention from readers who study every ad in the Laboratory Supply Center because they are in a buy­ing frame of mind.

Listing of your name in the Adver­tisers' Index along with all other advertisers.

If you'd like to try a less frequent cam­paign, we're at your service. One one-inch insertion is yours at the very low cost of $10.00. Analytical Chemistry and the other American Chemical Society publica­tions can help you do some testing or small-scale advertising at remarkably low rates. Why not call a Reinhold repre­sentative today to work with you on how to best make sales through this economical medium?

When selling or buying laboratory equipment and supplies, readers naturally turn to the "Supply Center" as the speediest and surest means of finding what they seek. This heavy reader traffic means added sales, added dollars. And when highly skilled technicians, laboratory directors and gradu­ate chemists read Analytical Chemistry, they are naturally interested in concise, easily-read mes­sages. This "Supply Center" is your telegraphic means of reaching these men quickly, economically.

INDEX TO ADVERTISERS Allied Chemical & Dye Corp 4th Cover American Platinum Works 25 A Applied Research Laboratories 12 A

Baker & Adamson Products 4th Cover Baker Chemical Co., J. Τ 2nd Cover Bausch & Lomb Optical Co 40 A

Central Scientific Co 4 A Chemical Rubber Co 28 A Coleman Instruments, Inc 21A Coors Porcelain Co 24 A

Despatch Oven Co 31A

Eastman Kodak Co 29 A Eberbach & Son Co 31 A Eck & Krebs, Inc 37 A Eimer & Amend 18A

Fisher Scientific Co 18 A Fish-Schurman Corp 30 A

General Chemical Div 4th Cover General Laboratory Supply Co 33 A Greiner Co., Emil 13 A

Hellige, Inc 33 A

Kimble Glass 11 A Klett Mfg. Co 3 2 A : 3 6 A

LaPine & Co., Arthur S 14 A Lindberg Engineering Co 3rd Cover

Macbeth Corp 33 A Machlett & Son, Ε 26 A Mallinckrodt Chemical Works 10 A Merck & Co., Tnc 6 A Meyer Scientific Supply Co., Inc 35 A

National Technical Laboratories 5 A New York Laboratory Supply Co., Inc 20 A North American Philips Co., Inc 34 A

Owens-Illinois Glass Co H A

Palo-Myers Inc 30 A Parr Instrument Co 35 A Perkin-Elmer Corp 7 A Photovolt Corp 31 A:37 A Precision Scientific Co 15 A : 32 A

Rubicon Co 24 A

Sargent & Co., Ε. Η 1 7 A : 2 7 A Schaar & Co 8 A Schleicher and Schuell Co., Carl 36 A Scientific Glass Apparatus Co., Inc 35 A Standard Scientific Supply Corp 9 A Superior Electric Co 22 A

Terminal Radio Corp 26 A Thermal Syndicate, Ltd 28 A Thermo Electric Mfg. Co 24 A Thomas Co., Arthur H 16 A

Welch Scientific Co., W. M 37 A Wilkens-Anderson Co 26 A

DIRECTORY Laboratory Supply Center 38 A-39 A

Burrell Corp. Cargille, R. P . General Biochemicals, Inc. Kern Co. Nalge Co. Panray Corp. Research Chemicals, Inc. Sorvall, Inc., Ivan Wilkens-Anderson Co. Wisconsin Alumni Research Foundation