Diary, Visit to America Large sheaf of notes taken by J H Gaddum during a visit to America in autumn 1948. Contains detailed timetable of places and people visited (pp5-8), extensive notes (some also typescript in the file). Visits noted include labs at Harvard, Yale, University of Chicago, Northwestern, E K Marshall's lab at Baltimore, Carl Schmidt's department in Philadelphia, and the Sloan Kettering Institute. Also contains a Harvard faculty club luncheon menu with notes on the back (page 2), and from the Laurentian Hormone Conference (Sept 1948) a membership list, memorandum, notice and programme of lectures (pp9-17, 78). 1948