- 1988Student (Lectures, Demonstrations And Laboratory)
- 1988Assistant Director
- 1991Associate Director
- 1960[subject unknown]Research Assistants
- 1961[subject unknown]Research Assistants
- 1969[subject unknown]Independent
- 1970[subject unknown]Independent
- 1971[subject unknown]Independent
- 1972[subject unknown]Independent
- 1973[subject unknown]Independent
- 1975[subject unknown]Independent
- 1976[subject unknown]Independent Investigators
- 1977[subject unknown]Independent
- 1978[subject unknown]Independent
- 1979[subject unknown]Independent
- 1980[subject unknown]Independent
- 1981[subject unknown]Independent
- 1987[subject unknown]Library Readers
- 1988[subject unknown]Library Readers
- 1994[subject unknown]Library Readers
- 1995[subject unknown]Library Readers
- 1996[subject unknown]Library Readers
- 1999[subject unknown]Library Readers
- 2002[subject unknown]Summer Investigators
- 2002[subject unknown]Research Fellows
- 2003[subject unknown]Visiting Principal Investigators