Based on thesis (Ph. D.)--University of California, 1937.
Bibliography: p. -263.
Electronic text and image data. Ann Arbor, Mich. : University of Michigan, Michigan Publishing, 2002. Includes both TIFF files and keyword searchable text. ([ACLS Humanities E-Book]) Mode of access: Intranet. This volume is made possible by a grant from the Andrew W. Mellon Foundation.