- 1939[subject unknown]Independent
- 1939[subject unknown]Corporation Member
- 1939The Relation of Cells to Organs in Plant DevelopmentFriday Evening Lecturer
- 1940[subject unknown]Corporation Member
- 1941[subject unknown]Corporation Member
- 1942[subject unknown]Corporation Member
- 1943[subject unknown]Trustee
- 1943[subject unknown]Corporation Member
- 1944[subject unknown]Trustee
- 1944[subject unknown]Corporation Member
- 1945[subject unknown]Trustee
- 1945[subject unknown]Corporation Member
- 1946[subject unknown]Corporation Member
- 1946[subject unknown]Trustee
- 1947[subject unknown]Corporation Member
- 1947[subject unknown]Trustee
- 1948[subject unknown]Corporation Member
- 1948The Problem of Size Determination in PlantsFriday Evening Lecturer
- 1949[subject unknown]Corporation Member
- 1950[subject unknown]Corporation Member