Modern printing processes : gum bichromate and platinotype papers (1900)
Abbott, Henry G., 1858-1905 · Chicago : Geo. K. Hazlitt · leaf 13
I I MODERN PRINTING PROCESSES. clear through to the paper on those portions which lie under the clear glass of the shadows and those portions which lie under the half-tones of the negative will be printed more or less through … the pigment, according as the light is allowed to penetrate through the developed film of the negative. Again glancing at the figure, we can readily see that if the coating on- the paper be too heavy there will be great danger of the half- tones being undermined by the unexposed por- tions…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
