This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...2o Warnerke's tissue 3 Beer and albumen 15 Coffee' 9 Emulsion 13 Whether any of the "emulsion" plates were gelatino-bromide we do not know; but in any case this summary of the pictures contributed to one of the most popular exhibitions ever held shows that up to that time, only some ten years ago, the gelatine process ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1888 Excerpt: ...2o Warnerke's tissue 3 Beer and albumen 15 Coffee' 9 Emulsion 13 Whether any of the "emulsion" plates were gelatino-bromide we do not know; but in any case this summary of the pictures contributed to one of the most popular exhibitions ever held shows that up to that time, only some ten years ago, the gelatine process was practically not used at all. t British Journal of Photography, March ioth, 1876. OTHER GELATINO-BROMIDE PROCESSES. 69 The pages of the English trade journals from 1873 to 1877 contain many useful suggestions and improvements from one or other Pioneers of other of a race of experimentalists which then Ge atmo-Bromide. flourished, a race which appears, alas! to be dying out. In December, 1873, E. W. Foxlee pointed out the value of alcohol as a preservative in gelatine emulsion, showing that it enabled gelatinous solutions to be kept for a long time without undergoing decomposition; its use also caused the plates to set and dry more rapidly. Mr. F. Wratten, in August, 1877, showed that the gelatine along with the silver bromide could be precipitated by adding alcohol to the solution containing it, leaving behind in the water all the soluble salts. By this method the necessity for dialysis or washing could be obviated. In the "British Journal Almanac" for 1874, Mr. W. B. Bolton showed how to form the emulsion in a small portion of the gelatine only, the remainder being added at the close of the operation. In this way the retarding action of the viscid gelatine was avoided. At a later period this method was found very useful. Of other workers about this time (1873-77) we can only name Messrs. P. Mawdsley, H. B. Berkeley, J. W. Gough, Col. Stuart-Wortley; and the anonymous contributors, "Amateur," "Franklin,&qu...
Read Less
Add this copy of A History of Photography to cart. $15.42, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of A History Of Photography to cart. $18.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of A History of Photography (Paperback Or Softback) to cart. $19.48, new condition, Sold by BargainBookStores rated 3.0 out of 5 stars, ships from Grand Rapids, MI, UNITED STATES, published 2022 by Legare Street Press.
Add this copy of A History of Photography to cart. $26.58, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of A History of Photography to cart. $28.09, new condition, Sold by Prominent Trading Company rated 4.0 out of 5 stars, ships from Hereford, HEREFORDSHIRE, UNITED KINGDOM, published 2010 by BiblioLife.
Add this copy of A History Of Photography to cart. $28.30, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
