The drop-weight method for the determina
๐
Article
๐
1915
๐
Elsevier Science
๐
English
โ 142 KB
more slowly, so that as the dye slowly enters the film the original negative is transformed into a positive produced in a colored dye. While one color is made in this way, the companion picture is also dyed in the other color, and the two, when placed together, make the finished picture. Since only