Download or read book The Photographer's Friend, Vol. 4 written by and published by Forgotten Books. This book was released on 2017-05-07 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Photographer's Friend, Vol. 4: January, 1874 We now come to the carbonate process This consists in the addition of carbonate of soda in sumcient quantity to produce by double decomposition a very sensible precipo itate of carbonate of silver, and this substance in falling carries With it the organic impuri ties The precipitate easily subsides, and leaves a clear and colorless supernatant liquid. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.