CMEFELL: RU ce RS “ MAY 5 1967 RESEARCH FACILITY FOR NUCLEIC ACIDS INSTITUTE FOR CHEMICAL RESEARCH KYOTO UNIVERSITY Ly. < Uji,Kyoto-Fu 611,Japan “CE CF THE PRES April 25, 1987 Dr. Joshua Lederberg The Rockefeller University 1230 York Avenue New York, New York 10021-6399 U.S.A. Dear Dr. Lederberg Mother has asked me to write to you, as she cannot do so herself just now. She and I would like you to know how much we appreciate your early message of sympathy over our recent loss. 4 months have passed since his death. But even now I can't understand why he has gone, I can't believe that someone with so much enthusiasm, hard will can die. I had been sure that he would recover and be back on research, but... My father always said to me that it was only after the intensive training as your postdoc that he had gained self-confidence.He also told me that it was from you that he learned what is science and how to be a good scientist.You were always, and the only professor for him he respected from the bottom of his heart.I wish to express my hearty thanks for your favors and patronage rendered to my father during his lifetime. With fondest love Goshiker Nacla/ J Yoshiko Hirota (Yukinori's daughter)