The science and practice of photography : an elementary textbook on the scientific theory and a laboratory manual (1920)
Roebuck, John R. (John Ransom), 1876-1965 · New York ; London : D. Appleton and company · leaf 136
PHOTOGRAPHY 1 14 to stack boxes of plates on edge. The same thing is often troublesome with the glossy surfaced de- veloping papers but much less often with the matt surfaced. The deposits in the case of the glossy surfaced papers are right on the surface and may be rubbed off with some absolute… … enough, the presence of some potassium iodide in the developer will hold back the development of these marks, and while it also holds back the regu- lar development, it does not do so as much. 77. Halation. — The spreading of the light from the brightly illuminated parts over into the shad- ows is…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.