Affiliations Courses Research 1970Distinguished University Professor Of ScienceFlorida Atlantic University1949Associate Research Professor Of DermatologyUniversity Of Pennsylvania1950Associate Research ProfessorUniversity Of Pennsylvania1951Research ProfessorUniversity Of Pennsylvania 1970Systematics-Ecology Program 1970Visiting Investigator 1949[subject unknown]Indendent1950[subject unknown]Library Readers1951[subject unknown]Library Readers1970[subject unknown]Independent
