Affiliations Courses Research 1926[position unknown]Hunter College1927Graduate StudentColumbia University1928Graduate StudentColumbia University1929Graduate StudentColumbia University1930Graduate StudentColumbia University1931Graduate StudentColumbia University 1926Botany 1926Student1927Protozoology 1927Student 1928[subject unknown][role unknown]1929[subject unknown][role unknown]1930[subject unknown][role unknown]1931[subject unknown]Independent
