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 72
vaporation of the solvents. When it becomes too thick to flow well it must be thinned down by the addition of a sufflcient quantity of alcohol and ether in the proportions of three to flve. When the excess of collodion is drained from the plate into the stock bottle it gradually becomes fllled with… … washed cotton ' is loosely packed, through Fig. 16. which the collodion slowly Alters. The Sensitizing Bath. — The offlce of the bath is to make the collodion Aim sensitive by changing the metallic iodides and bromides into iodide and bromide of silver.
Photography
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