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For more than 12 years,

Nuclear-Chicago has been the

foremost manufacturer of

instruments for measuring and

recording radioactivity.

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In the past tew months Nuclear-Chicago has distributed thousands of copies of these Technical Bulfetins describing the analytical use of radioisotopes. If you have not received them, just check and mail the coupon. New Technical Bulletins are now being prepared and will be issued periodically. If you will check the coupon accordingly we'll be glad to see that the new Builetins will be sent you regularly as published.

TO: Nuclear-Chicago Corporation 2a West Erie Street, Chicago 10, Illinois • Send Technical Bulletins 1, 2 & 3

Π Send future Bulletins regularly

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ÂjEdea/ieÂ. Qiùx&fe. fâuù'ocAe*

NAME.

ADDRESS.

247 WEST ERIE STREET · CHICAGO .10, ILUNQ1S

Circle Ne. 82 on Readers' Service Card

V O L . 3 1 , HO. 4.

nuclear-chicago CORPORATION