Affiliations Research 1913Assistant Professor Of ZoologyUniversity Of Michigan1916Associate Professor Of ZoologyUniversity Of Michigan1928Professor Of ZoologyUniversity Of Michigan1929Professor Of ZoologyUniversity Of Michigan1930Professor Of ZoologyUniversity Of Michigan 1913Zoology[role unknown]1916Zoology[role unknown]1928[subject unknown][role unknown]1929[subject unknown][role unknown]1930[subject unknown][role unknown]
