Document w9ND9wvenvGr9KdXELyz658E

February 15 191+1 Dr. R. M. Kurten 8lO Main Street Racine Wisconsin Dear Doctor Kurten: We are sending you containers for the collection of samples of blood and samples of urine from the four men indicated in your letter of February 12th. I enclose herewith instructions for the collection of these samples, which I would appreciate your following in the minutest detail. Lead is so prevalent everywhere in the air and in the dusts deposited from the air, and the quantities required to produce serious contamination are so small, that every possible precaution must be taken in the collection o f samples of this type. I believe we shall be able to obtain the information which we need from these small samples of urine. We may consider it advisable to obtain some larger samples, but this will probably not be necessary and, in any case, I shall communicate with y o u further if it seems advisable. Let me make one additional precautionary comment. The tubes of blood are occasionally broken in transit, and it necessary, therefore, to exercise a great deal of care in packing them so that they will not be broken. Also, the tubes in which the needles are shipped are easily broken b y the heavy hub, if they are not packed around with cotton or some other material to hold them tightly in the tube. Very truly yours, RAK:is Robert A. Kehoe, M.D R U S S E L L M. KURTEN, M. D. F. A. C. S. BIO MAIN STREET RACtNE.WtSCONSIN Feb. 12, 1941 Dr. Robert A. Kehoe Kettering Laboratory of Applied Physiology Bden Avenue Cincinnati, Ohio Dear Doctor Kehoe: I have discussed your letter with Mr. Kitto. He feels we should make the examinations. If you will send us equipment for four men, we shall forward the specimens to you. Very truly yours RMK:CH 00054"8