Collection includes final typescript draft of material for his book, Louis Sullivan: prophet of modern architecture (published as: Louis Sullivan, prophet of modern architecture. New York: The Museum of modern art and W.W. Norton. [c1935]); 4 notebooks with drafts for chapters 1-4, 5-8, 9-13, and 14-17 of his book, American architecture: the colonial and georgian periods (published as: Early American architecture from the first colonial settlements to the national period. New York: Oxford University press. c1952 ); 1 notebook with work prints for the section on colonial architecture from this book; a set of illustrations for this book; and a notebook with a general index. Also includes notebook with photographs and ms. notes for the book, Early houses of Norwich, Vermont (published as: Early houses of Norwich, Vermont [by] Philip Aylwin White [and] Dana Doane Johnson, edited by Hugh S. Morrison. Hanover, N.H., Dartmouth College. c1938). Also includes 1 notebook of general correspondence and 2 notebooks with correspondence regarding requests for photographs and permission to publish them.