The practical working of the gelatine emulsion process (1880)
Abney, William de Wiveleslie, Sir, 1843-1920, author · London : Piper and Carter · leaf 63
53 VARIATIONS IN MANIPULATIONS. washing apparatus, as shown in the figure. In the lid of a common canister a hole is perforated so as just to ad¬ mit of the insertion of a glass tube a, a ; a piece of india- rubber tubing connects this with the water tap, and cover® … any small chink between the glass and the lid, as shown. A spout is soldered on to the canister, as shown. A bottle containing the emulsion to be washed is placed in the canister, the tube being inserted in it. The water flows over the top of the bottle, and rises in the canister to the level of…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
