Columbia Gniversity inthe City of Rew Pork DEPARTMENT OF ZOOLOGY July 21, 1958 Dr. Joshua Lederberg Department of Medical Genetics Genetics Building University of Wisconsin Madison 6, Wisconsin Dear Josh, When I hear the worldwide accolade of your scientific achievements, note your election to our distinguished societies, and sense our colleagues’ estimation of your worth, I am filled with happiness for you, but when I learn of your appointment at Stanford and realize how little you will appreciate the wonderful advantages that institution offers, I am filled with envy. Nonetheless, heartfelt congratulations. Is Bruce Stocker or Lucca still with you? With all best wishes, to you and Esther, ncerely yours, Francis J. Ryan