A K Henry: The Irish Journal of Medical Science, Vol. 7 : Formerly the Dublin Journal of Medical Science; The Official Organ of the Royal Academy of Medicine in Ireland; September, 1922 (Classic Reprint)


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Excerpt from The Irish Journal of Medical Science, Vol. 7: Formerly the Dublin Journal of Medical Science; The Official Organ of the Royal Academy of Medicine in Ireland; September, 1922 In connection with photography it is worth while to mention that a key seems now to have been found to an old-standing and fascinating puzzle, viz., the chemical nature of the sub stances comprising the latent picture. The chemical guess that this is due to certain hypothetical sub-salts of Ag has never been experimentally demonstrated and may be cast aside. The truth about the latent image is this. It represents adsorption complexes of colloid silver in different degrees of dispersion, with normal non-reduced silver haloids. This view is beautift demonstrated by the experiments of W. Reinders who has succeeded in producing these photo-haloids synthetically in the form of differently coloured crystals by allowing different silver haloids to crystallise in the presence of differently coloured colloid silvers. The truth is, that. The photo-haloids of silver represent adsorption complexes of colloid silver in different degrees of dispersion with normal non-reduced silver haloids. (ino. Ostwald). 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.
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Author: A K Henry
Number of Pages: 72 pages
Published Date: 22 Dec 2016
Publisher: Forgotten Books
Publication Country: United States
Language: English
ISBN: 9781334713569
Download Link: Click Here
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Forging of Iron and Steel : A Text Book for the Use of Students in Colleges, Secondary Schools and the Shop (Classic Reprint)
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