Properties of Photographic Plates Exposed to Light


IN May, 1904, I exposed an ordinary sensitised ¼ plate (20th Century Rapid) to daylight. It was so placed that the light had to pass through a window before falling upon the plate. The day was cloudy and dull, without sun, and the time of exposure was from two to four p.m.

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WINN, L. Properties of Photographic Plates Exposed to Light. Nature 72, 485 (1905).

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