The grammar of photo-engraving : containing instruction in drawing, chemistry and optics, as applied to photo-engraving, and a practical treatise on the art of half-tone, zinc etching, swelled gelatine, lithotype and chalk plate engraving, as practiced in the United States (1895)
Farquhar, H. D. (Harry D.), Eder, Josef Maria, 1855-1944 · London : Dawbard & Ward · leaf 70
65 THE GRAMMAR OF PHOTO-ENGRAVING. Experience only can teach us when the development has been carried far enough. When the development has gone far enough, immediately place the plate under a tap and wash off the developer, the back being washed with the hand. … Fig. 29 If after examination the lines are found to be clear, trans- parent, sharp and free from spots, and all details of the copy are satisfactorily reproduced, the plate is ready for Fixing. After the plate has been developed it is fixed. The cyanide solution is poured off and on the plate,…
Photoengraving
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
