"Printing out" Quotes from Famous Books
 ... carbon process the negatives should be intenser than those intended for printing out on silver paper. However, good proofs may be obtained from any negatives, so to say, by varying the strength of the bichromate solution, as, also, by using the tissue freshly sensitized for weak negatives, in order ...
— Photographic Reproduction Processes • P.C. Duchochois |
