Document mBYKwbdw3aL7OzmDXJxOawepb

E. C. FUNSCH, M. D. 4101 LACLEDE AVENUE ST. LOUIS, MO. March 29,1944 Kettering Laboratory of Physiology University of Cincinnati Cinnati, Ohio G-entleaeni Am desirous of sending blood samples in cases of suspected lead intoxication to you for analysis. We are running one or two of these a week. Would you kindly send me prepared mailing tubes with preservative and any instructions that you may deem advisable? The bill for the examina tion will be borne by the Insurance Carriers and should accompany the report of your findings, I would like to have your interpretation of what you consider the normal amount of lead in blood and the amount you would expect toxic symptoms. Respectfully, e c f /c f . -SJ- E. C, Funsch, M.D. !'