| Results | ||
| Speaker | Title | Date |
| Clark, Walter | A Photographic Tropical Research Programme | 1953 |
| Clark, Walter | Infrared Color Photography | 1966 |
| Clark, Walter | Kodak Research In The Graphic Arts | 1951 |
| Clark, Walter | The Photographic Year: A Review of Progress in 1950 | 1951 |
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