UNIVERSITY OF CALIFORNIA DEPARTMENT OF CHEMISTRY BERKELEY 4, CALIFORNIA September 14, 1959 Dr. J. Lederberg Department of Genetics Stanford Medical School Palo Alto, California Dear Josh: I have just returned to find your communication of September 4th and also to hear the news on this morning's broadcast. I wonder how seriously to take the remark "the 835“payload had been sterilized." Perhaps the most encouraging thing is that they took the trouble to mention this fact gives hope for the future. Cn Saturday the 26th seems suitable and I have communicated it to Harold Weaver. Your suggestion for reproducing the report of Panel 2 sounds to me perfectly satisfactory and I will communicate this to the Council itself. You may see Otto Schmitt before that time but I can't imagine that there would be any reason for not doing it. I am looking forward to seeing you in your new quarters. ings and very truly yours, Melvin Calvin Professor of Chemistry MC :mf