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The photographic negative : written as a practical guide to the preparation of sensitive surfaces by the calotype, albumen, collodion, and gelatine processes, on glass and paper, with supplementary chapters on development, etc., etc. (1888)

Burbank, W. H. (William Henry), 1853- · New York : Scovill Manufacturing Co. · leaf 113

An illustration from The photographic negative : written as a practical guide to the preparation of sensitive surfaces by the calotype, albumen, collodion, and gelatine processes, on glass and paper, with supplementary chapters on development, etc., etc., 1888, leaf 113
st is to wash in many changes of water, stirring the emulsion well after each change, and allowing it to settle be- fore decanting the water. If this method be adopted a double tubed decantation flask will be found very convenient ; a piece of clean muslin is tied over the small tube and the… … is tied over its mouth around the glass tube. The method of converting Davanne’s cooker into a washing apparatus has already been given.

Photography

Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.

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