- 1972Assistant Professor
- 1973Assistant Professor
- 1966Professor Of Molecular Biology
- 1966Assistant Professor Of Molecular Biology
- 1944Assistant Research
- 1935Professor Of Biology
- 1968[position unknown]
- 1969[position unknown]
- 1970[position unknown]
- 1971[position unknown]
- 1972[position unknown]
- 1973[position unknown]
- 1974[position unknown]
- 1975[position unknown]