Affiliations Courses Research 1935UndergraduateHarvard University1937Graduate Work In BiologyHarvard University1938Graduate Student In BiologyHarvard University1939Graduate Student In BiologyHarvard University1939Graduate Student Of BiologyHarvard University1940Graduate Student Of BiologyHarvard University1941Graduate Student In BiologyHarvard University 1935Embryology 1935Student 1937[subject unknown]Beginners1938[subject unknown]Beginners1939[subject unknown]Independent1939[subject unknown]Independent1940[subject unknown]Independent1941[subject unknown]Independent Investigators