Robinson, H. P. (Henry Peach), 1830-1901, author, Abney, William de Wiveleslie, Sir, 1843-1920, author, Piper & Carter, publisher · London : Piper & Carter · leaf 22
10 FLOATING THE PAPER. least 90°, in fact, tlie hotter it is the more glossy will he the resulting paper. The solution, free from hubbies, is poured in, and should be of a depth of at least \ an inch. Suppose the smaller size to be coated, before commencing, the paper is taken by the two opposite… … Fig. 3. the convex side brought on to the surface of the fluid ; the hands are then separated, and the paper will gradually float on the surface. One corner should be gradually raised to see that all air-bubbles are absent. If there be any, they should be broken with the point of a glass rod, and…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
