Letter from A Gottschalk, John Curtin School of Medical Research, Australian National University, Canberra to Howard Walter Florey Thanks for reprint of Croonian Lecture - proposes to come to Oxford on 14 July and give seminar on 15th - would have liked to arrive earlier but sponsors of his American visit suggested he participate in International Convention on viruses at Ann Arbor on 11-13 July. 15 February 1960