Document kaD9x528Mz6pEzv9KBQnqXL3q

`Red (th-and LINE \ ........ \>-/ V W.C. ERKERT U RCH A Si N G A GEN T IM *. April 19, 194-1 Dr. Robert A. Kehoe, M.D. Director of Kettering Laboratory of Applied Physiology University of Cincinnati Eden Avenue Cincinnati, Ohio Dear Dr. Kehoe: Thanhs ever so much for your most interesting and informative letter dated April 15 in reference to exhaust fumes expelled by Internal combustion engines. The article referred to in your second paragraph that you intended should be enclosed was not re ceived. I would very much appreciate receiving the reprint referred to if it is conveniently available. Beyond this, we have no additional questions at this time, but shall feel free to contact you if problems on this subject present themselves. Jookfoi RED LEAlRP HE 0011614