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October 17, 1939 Dr, 13, E, Eoker Institute of Pathology Western Reserve University 20S5 Adelbert Road Cleveland* Ohio Dear Doctor Eokeri- We are laboring under a considerable volume of work at the present time which.makes it difficult for us to acoede to the request In your letter of October 14th,and which would make it quite impossible for us to analyze the materials which you wish to send us without some delay, Cn the other hand, I do not like to refuse to accommodate you and if It would be satisfactory to you to have these samples worked in gradually along with some others, we shall be able to complete them over a period of several weeks, In view of our experience with the opportunities for contamination In the handling of'the tissues of animals, I think I should warn you that the utmost care is necessary in order to obtain useful results, The ooncentratlona of lead in animal tissues are always quite low, and the total quantities involved in the tissues of small animals are quite small.

Exclusive "Electro-Chemical Control" Makes Anaconda White Lead "FINER AND SMOOTHER!

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February 9, 1937 Dr* Florent Costea 1*1 Rue Cardinefc Paris - 8F Franc Dear Doctor Coates j I read your letter of January 21st concerning the request of the Wooers Union that they he supplied with certificates Indicating the physical fitness of men you have examined* From the point of view of our general medical policy, I see no objection to your supplying such certificates to the management of refineries in whioh you make examinations.

jt, ft *I f THE ASSOCIATED ETHYL COMPANY LIMITED rPS^8^i!

STATELIEST OP MISCELLANEOUS ACCOUNTS SEPTEMBER, 1936 American Cyanasdd A Chemical Corp.

Philadelphia, Pa., April 5, 1*43.

`Tke Qatom&i n/l I TVT %t PAINTa7ke l_rll 1t Here's a tip on how to get his Big, Profitable thdersl At b e s t , a housewife's trade is worth a few dollars a month, hut a painter's is frequently worth hundreds.

ff DON'T LET LOW-GRADE PAINT SPOIL THE PICTURE!

^ W NEWARK PLANT p PIGMENT COLOR RESEARCH REPORT $ FEBRUARY 1935 PIGMENT COLOR RESEAROii REPORTS FEBRUARY - 1935 I - IRON BLUES Yield Study B-63-D (FLP) ........................................ .......................

Vorys, Sater, Seymour and Pease 2100 One Cleveland Center 1375 East Ninth Street Cleveland.

ESTA8U9HE0 1092 E.