Document oeRL22wabNMQx5pQaKbV3e8yw

St andar d Oil Devel o pment Co mpany Medic al Depar t ment . l inde n, New Je r se y D. W. CALDWELL, M; D. MEDICAL d ir e c t o r January 5> 195 EFFECTIVE NOVEMBER I, 1949 jOUR MAILING ADDRESS WILL BE P.0. BOX51. LINDEN. N. J. I Ethyl Corporation, Eastern Division k - 0 5 Lexington Avenue New York, IT, New York Dear Mr. Baldwin: Att. Mr. A. J. Baldwin I would like to ask the following regarding periodic toxic examinations of certain of our employees working on T.E.L. Is it possible to have lead analysis made, within your company, on the blood, urine and feces of our employees working with leaded substances? We find that local bio-chemical laboratories results are seemingly unsatisfactory. It is my understanding that the technical analysis is rather difficult and I am hesitant to ask our own medical technician to do such tests. Very truly yours, DWCrMLB D. W. CALDWELL, M.D. HE 0 0 1 8 4 6 r>