Letter from Howard Walter Florey to John T Litchfield, Jr, Lederle Laboratories, Pearl River, New York Enjoyed Litchfield's visit - says Dr Astrup is highly thought of by those who have worked on similar subjects, particularly fibrinolysis - does not know Astrup personally - worth investigating Astrup as possibility for the Geneva establishment - best places from which to get people for Geneva are smaller countries with relatively limited resources. 24 October 1959