- 1926Professor Of Biology
- 1927Professor Of Biology
- 1928Professor Of Biology
- 1931Rector
- 1952[position unknown]
- 1921[position unknown]
- 1922Instructor
- 1923[position unknown]
- 1929Rector And Professor Of Biology
- 1952[position unknown]
Preserving and communicating the history of science at the MBL