The Chemistry of Light and Photography
Arno Press, 1875 - 288 páginas
Volume contains "6 plates: 1 Woodburytype of the moon, 2 Lichtpaus specimens on 1 plate, 1 Scamoni Relief Heliogravure, 1 Scamoni Intaglio Heliogravure, 2 Glazed Obernetter Collotypes on 1 plate, [and] 1 Photolithograph of a map by S.H. Parkins. The plates are printed by the Woodburytype Permanent Photographic Printing Co., London; Obernetter, Munich; Scamoni, St. Petersburg."--Hanson Collection catalog, p. 54.
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Página 284 - Fahr. the rays emitted by a solid are invisible, but at that temperature they impress the eye with the sensation of red ; that the heat of the incandescing body being made continuously to rise, other rays are added, increasing in refrangibility as the temperature...
Página 210 - At the place of arrival the films were unrolled and then enlarged by the help of a magic lantern ; a number of writers thereupon set to work to copy the enlarged despatches, and ultimately forwarded them to their respective addresses. Thus Paris corresponded, by the aid of photography, for six months with the outer world, and even poor persons were able to let their relatives know that they still lived.
Página 35 - This gave it a brilliant surface, and a warmer and more beautiful tone to the prints upon it, giving the pictures a brighter appearance than those produced upon the ordinary paper. Thus Talbot's process, which at first seemed hardly worth notice compared with that of Daguerre, was gradually so perfected by successive improvements, that it ultimately took precedence of Daguerre's. After 1853, paper pictures from collodion negatives came more and more into vogue, whilst the demand for daguerreotypes...