Photography with emulsions: a treatise on the theory and practical working of gelatine and collodion emulsion processes (1882)
Abney, William de Wiveleslie, Sir, 1843-1920 · New York, Scovill manufacturing co. · leaf 154
140 GELATINO-BKOMOIODIDE EMULSION. tube outwards. The glass collapses, and the short hit is pulled off. A flat file is then applied to the point, and the glass filed away till a very small orifice is left. The two tubes are then inserted in a cork which is fitted into a test-tube as shown. The… … bottom of the tube, and a very fine spray of liquid can be forced through the orifice of A. The solution of gelatine and bromide should be placed in a glass beaker or a jam-pot, and in the dark room the spray is blown on to it, and the liquid stirred, at the same time, with a clean glass rod. When…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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