Affiliations Courses Research 1926Assistant In ZoologyColumbia University1927Instructor In AnatomyColumbia University1928Instructor In AnatomyColumbia University1930Medical SchoolColumbia University1931Assistant Professor Of AnatomyColumbia University1932Assistant Professor Of AnatomyColumbia University1929Instructor In AnatomyCollege Of Physicians And Surgeons 1926Protozoology 1926Student 1927[subject unknown][role unknown]1928[subject unknown][role unknown]1929[subject unknown][role unknown]1930[subject unknown][role unknown]1931[subject unknown]Independent1932[subject unknown]Independent