Page contains:
- Photograph of Sewall Knight at the Imperial Cancer Research Fund, London, where he gave a seminar, Dec 1980;
- Photograph of Sewall Knight with Walter F Bodmer and Betty Robinson at the Imperial Cancer Research Fund, London, Dec 1980;
- Photograph of Sewall Knight with Walter F Bodmer and Pontecorvo at the Imperial Cancer Research Fund, London, Dec 1980.