Professor Davis Coakley, MD. F.R,CP.1 Robert Mayne Day Hospital, St. James's Hospital, 57 Mount Anville Wood, Dublin 8. Lower Kilmacud Road, Tel : 537941 Extn. 2615, 2619 Dublin 14. DC/GOK. 22 October 1990 i GA) Professor Joshua Lederberg, ore The Rockefeller University, 1230 York Avenue, New York, NY 10021, UNITED STATES OF AMERICA. Dear Professor Lederberg, I am currently writing a book which will be published during the Quatercentenary Celebrations of Trinity College Dublin in 1992. The book will include biographies of famous graduates of Trinity College Dublin who made contributions to Medical Science. I intend to include a biography on Bill Hayes. I am anxious that the biography should be more than just a catalogue of his achievements. I have been told that you may be able to help me with some reminiscences. I certainly would be very grateful if you could help me in this regard. I look forward to hearing from you. With best wishes, Yours sincerely, San Caley SS Professor Davis Coakley, M.D., F.R.C.P.I.