Affiliations Courses Research 1935Graduate StudentColumbia University1935StudentColumbia University1936Graduate StudentColumbia University1933[position unknown]Brooklyn College1933FellowBrooklyn College1934Fellow In BiologyBrooklyn College1939Instructor In BiologyBrooklyn College1940Instructor In BiologyBrooklyn College 1933Embryology 1933Student1935Protozoology 1935Student 1933[subject unknown]Beginners1934[subject unknown]Independent1935[subject unknown]Independent1936[subject unknown]Beginners1939[subject unknown]Independent1940[subject unknown]Independent