Correspondence, manuscripts, notes, and printed materials. This collection consists of his correspondence (1937-1957) in four boxes; manuscripts, notes, and printed copies of speeches and periodical articles and the manuscripts of "North Atlantic Triangle" and "Making of Modern Canada". Included also are the notes for a number of courses given by him at Columbia University as well as three boxes of student seminar papers. Most of the materials in the collection relate to some phase of Canadian life and history