Document dQyBdbY3Vq12z4zyp77mmZ475

COPY LEAD INDUSTRIES ASSOCIATION 420 Lexington Avenue New York 17, New York March 29th, 1949 George H. G-ehrmann, M. D. Medical Director S. I. duPont de Nemours & Company Wilmington 98, Delaware Dear George: I had a rather odd visitor this morning in the share of a man employed at a testing riant of one of the large air craft companies near Sen Francisco. He claimed that he had acouired lead roisoning (now cured) as a result of having done welding on some exhaust stacks in which lead In the form of a gray rowfier had keen deposited from ethyl gasoline exhaust gases. This is an entirely new one to me. Does it, in your orinion, make sense? If so, I would think that some precaution ary cleaning prior to such -welding operations should he recom mended. Sincerely yours Manfred from Manfred Bowditch K 0014 5