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40ORESS ALU COMMUNICATIONS TO THE STATTK *50 IVR:> OF HEALTH THE STATE BOARD OF HEALTH OF MISSOURI CITY OF JEFFERSON IKy 2, 1937 Kettering Laboratory of Applied Physiology University of Cincinnati Cinnianati, Ohio Gentlemen: I have a reference to the effect that you are interested in the accumulative effect of small doses of arsenic am lead in such materials as spray residues, and I shall be grateful for any reprints of articles you have published on this subject. I shall be grateful for any references you can give me to the literature in regard to the injurious effect of spray residues on the consumer. Very truly yours C 1 Adams, M D Director of Laboratories