Affiliations Courses Research 1935[position unknown]American Museum Of Natural History1947[position unknown]American Museum Of Natural History1948[position unknown]American Museum Of Natural History1949[position unknown]American Museum Of Natural History1950[position unknown]American Museum Of Natural History1951[position unknown]American Museum Of Natural History1952[position unknown]American Museum Of Natural History1953[position unknown]American Museum Of Natural History1954[position unknown]American Museum Of Natural History1955[position unknown]American Museum Of Natural History1956[position unknown]American Museum Of Natural History1957[position unknown]American Museum Of Natural History1958[position unknown]American Museum Of Natural History1959[position unknown]American Museum Of Natural History1960[position unknown]American Museum Of Natural History1961[position unknown]American Museum Of Natural History1962[position unknown]American Museum Of Natural History1963[position unknown]American Museum Of Natural History1964[position unknown]American Museum Of Natural History1965[position unknown]American Museum Of Natural History1966[position unknown]American Museum Of Natural History1967[position unknown]American Museum Of Natural History1968[position unknown]American Museum Of Natural History1914Laboratory Assistant In ZoologyUniversity Of Chicago1919Research AssistantUniversity Of Chicago1924Research AssistantUniversity Of Chicago1930Research AssociateUniversity Of Chicago 1914Physiology 1914Student1947Zoology 1947Consultant1948Zoology 1948Consultant1949Zoology 1949Consultant1950Zoology 1950Consultant1951Zoology 1951Consultant1952Zoology 1952Consultant1953Zoology 1953Consultant1954Zoology 1954Consultant1955Zoology 1955Consultant1956Zoology 1956Consultant1957Zoology 1957Consultant1958Zoology 1958Consultant1959Zoology 1959Consultant1960Zoology 1960Consultant1961Zoology 1961Consultant1962Zoology 1962Consultant1963Zoology 1963Consultant1964Invertebrate Zoology 1964Consultant1965Invertebrate Zoology 1965Consultant1966Invertebrate Zoology 1966Consultant1967Invertebrate Zoology 1967Consultant1968Invertebrate Zoology 1968Consultant 1914Physiology[role unknown]1919Zoology[role unknown]1924Zoology[role unknown]1930[subject unknown][role unknown]1935[subject unknown]Independent1965[subject unknown]Independent