UNITED STATES ATOMIC ENERGY COMMISSTON Washington 25, D.C. April 15, 1952 Mr. M, W. Boyer General Manager U. S. Atomic Energy Commission 1901 Constitution Avenue Washington 25, D. ©. Dear Mr. Boyer: The Advisory Committee for Biology and Medicine at its mecting held on April 4 and 5 learned with mich regret that Dr. Shieids Warren has found it necessary to resign as Director of the Division of Biology and Medicine effective June 30, 1952. It is my understanding that Dr. Warren has advised you thst Dr. Ernest Goodpasture will be retiring from the committee on June 30, 1952. In seeking a replacement for Dr. Goodpasture, it was agreed unanimously that Dr, Warren should be asked to serve on the committee. The matter has been discussed with Dr, Warren and he has consented to accept a place on the committce if the Commission so desires, I therefore am transmitting the recommendation of the Committec that Dr, Warren be appointed a mombcr of the Advisory Committce for Biology and Medicine at the termination cf his present appointment as Director of the Division of Biology and Medicine, or on July 1, 1952. Sincerely yours, , /s/ Alan Gregg Alan Gregg Chairman, Advisory Committce for Biology and Medicine ADDENDUM #2 COPY