Affiliations Courses Research 1939Head Of Department And Professor Of BiologyUnion College1928[position unknown]Columbia University1930InstructorColumbia University1931InstructorColumbia University1932Assistant Professor Of BiologyEmory University 1928Protozoology 1928Student 1930[subject unknown][role unknown]1931[subject unknown]Beginners1932[subject unknown]Beginners1939[subject unknown]Independent
