Black and white photographic print, showing secondary electrons produced in air by gamma-rays
- Made:
- 1912-1937
Black and white photographic print, from a photo lent by Prof. C.T.R. Wilson, F.R.S.) (see Royal Society's Proceedings, "A", Vol. 87, plate 7, No. 2 1912) and display label, mounted on passe partout board minus frame, showing secondary electrons produced in air by gamma-rays, by Science Museum Photographer, South Kensington, London, England, 1933-1937