Author: Edward H. ForbushPublisher: BoD – Books on Demand
ISBN: 3752400161
Category : Fiction
Languages : en
Pages : 33
Book Description
Reproduction of the original: The Mentor, Game Birds of America by Edward H. Forbush
The Mentor, Game Birds of America
Author: Edward H. ForbushPublisher: BoD – Books on Demand
ISBN: 3752400161
Category : Fiction
Languages : en
Pages : 33
Book Description
Reproduction of the original: The Mentor, Game Birds of America by Edward H. Forbush
The Mentor: Game Birds of America, Vol. 1, Num. 34, Serial No. 34
Author: Edward Howe ForbushThe Mentor, a Wise and Faithful Guide and Friend, Vol. 1
Author: Edward Howe ForbushPublisher: Forgotten Books
ISBN: 9780656151745
Category : Pets
Languages : en
Pages : 34
Book Description
Excerpt from The Mentor, a Wise and Faithful Guide and Friend, Vol. 1: Game Birds of America, Department of Natural History Author of Useful Birds and Their Protection, A History of Game Birds, W ild F owl, and Share Birds, etc. 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.
Game Birds of America
Author: Edward Howe ForbushPublisher:
ISBN:
Category : Game and game-birds
Languages : en
Pages : 11
Book Description
The Mentor
Author: The Mentor, Butterflies
Author: W.J HollandPublisher: BoD – Books on Demand
ISBN: 3752399961
Category : Fiction
Languages : en
Pages : 58
Book Description
Reproduction of the original: The Mentor, Butterflies by W.J Holland
The Mentor-world Traveler
Author: Mentor
Author: The Cardinal
Author: The Mentor: Photography
Author: Paul L. AndersonPublisher: anboco
ISBN: 3736412665
Category : Fiction
Languages : en
Pages : 60
Book Description
Louis Jacques Mande Daguerre (born 1789, died 1851), was a great French scene-painter who experimented for many years trying to find some way of rendering permanent the image projected by a lens. J. Nicéphore Niépce was engaged in the same research, and from 1829 until the death of Niépce in 1833 the two worked together, but it was not until some years after the latter date that Daguerre discovered the process that bears his name. This process may be briefly described as follows: a highly polished and perfectly clean silver plate is rendered sensitive to light by the formation of a deposit of silver iodide on the surface, this being accomplished by exposing the plate—of course in the dark—for some minutes to the vapor of iodine. When the plate has assumed a uniform golden-brown color it is placed in the camera and the exposure is made, the light projected by the lens causing a chemical change to take place in the silver iodide. The image thus obtained is very weak, and in order to strengthen it the plate is exposed for some minutes to the vapor of mercury. It is subsequently fixed, or rendered permanent, by bathing with a solution of sodium thiosulphate (ordinarily known to photographers as "hypo"). This dissolves the silver compounds that were not affected by light. In some cases the picture is still further strengthened by treating it with chloride of gold. This not only increases the vigor of the image but at the same time improves its stability, so that it is less likely to fade as the result of atmospheric action or exposure to light. The effect of the chloride of gold is literally to gold-plate the image. As the surface of the completed daguerreotype is very sensitive to any mechanical action, it must be protected by glass. A mere touch of the finger leaves an irremediable scratch. The daguerreotype was at one time very popular for portraiture, but the process has certain drawbacks that have caused it to be superseded by improved methods.