- 1951Professor Of Biology
- 1962Professor Of Biology
- 1962Professor Of Embryology
- 1968[position unknown]
- 1969[position unknown]
- 1970[position unknown]
- 1971[position unknown]
- 1972[position unknown]
- 1977[position unknown]
- 1978[position unknown]
- 1979[position unknown]
- 1980[position unknown]
- 1981[position unknown]
- 1982[position unknown]
- 1983[position unknown]
- 1984[position unknown]
- 1985[position unknown]
- 1986[position unknown]
- 1987[position unknown]
- 1988[position unknown]
- 1989[position unknown]
- 1990[position unknown]
- 1991[position unknown]
- 1992[position unknown]
- 1993[position unknown]
- 1984[position unknown]
- 1975Associate Professor
- 1980[position unknown]