AMERICAN PHILOSOPHICAL SOCIET/ HELD AT PHILADELPHIA, FOR PROMOTING USEFUL KNOWLEDWE JUN 15 1989 Herman H. Goldstine, Executive Officer 13 June 1989 Dr. Joshua Lederberg, President The Rockefeller University 1230 York Avenue New York, New York 10021 Dear Dr. Lederberg: As you know, it is the custom of the Society to publish in its Year Book biographical memoirs its deceased members. As editor of the Year Book, I am writing to ask whether you would be willing to provide an essay on Dr. George W. Beadle. The memoirs, which cften include personal reminiscences as well as description and evaluation of the subject's career, are generally around fifteen hundred words in length. If you could do this, it would be a great service, and a splendid addition to the Year Book. Sincerely, Qpurd oped eee VAC Assistant to the Editor an bors Th, MAL be KO4 te La, YN, SE OF THE presi EXECUTIVE OFFICE — 104 SOUTH F STREET, PHILADELPHIA, PENNSYLVANIA 19106-3387 * Phone (215) 627-0706