Mees, C. E. Kenneth (Charles Edward Kenneth), 1882-1960, Eastman Kodak Company · Rochester, N.Y. : Eastman Kodak Company · leaf 94
FUNDAMENTALS OF PHOTOGRAPHY … Fig. 86. a. Negative too dense all over. b. Result of using Farmer's Reducer. action without actually taking part in it, and an auto- catalytic action being one in which the rate of action in- creases of its own accord. Since the action of ammonium persulphate is auto-catalytic it acts most rapidly…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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