Affiliations Courses Research 1909[position unknown]Oberlin College1920Associate In Med. EntomologySchool Of Hygiene And Public Health Johns Hopkins University1917Bruce FellowJohns Hopkins College1913Graduate StudentJohns Hopkins University1915[position unknown]Johns Hopkins University1916Bruce FellowJohns Hopkins University1916FellowJohns Hopkins University1917Instructor In ZoologyJohns Hopkins University 1909Zoology 1909Student1912Embryology 1912Student1913Physiology 1913Student1916Zoology 1916Instructor1917Zoology 1917Instructor 1915Zoology[role unknown]1916Zoology[role unknown]1917Zoology[role unknown]1920Zoology[role unknown]