| Royal Society Research Professor |
Department of Zoology, Oxford University |
1989- |
| Vice-President for Research |
Princeton University, USA |
1977-88 |
| Professor of Biology |
Princeton University, USA |
1973-88 |
| Senior Lecturer/Professor |
Physics Department, University of Sydney |
1961-73 |
| Lecturer |
Engineering and Applied Physics, Harvard |
1960-61 |