 | 1897 - Страниц: 918
...observatory, over the process of Daguerre, and even over that of wet collodion. The sliverbromide gelatine plate, which I was the first, I believe, to use for...on succeeding nights; and so make up by successive instalments, as the weather may permit, the total long exposure which may be needful. The power of... | |
 | 1891 - Страниц: 346
...gelatin plate, except for its grained texture, meets the needs of the astronomer at all points. It possesses extreme sensitiveness; it is always ready...any position ; it can be exposed for hours ; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | 1891 - Страниц: 680
...gelatine plate, except for its grained texture, meets the needs of the astronomer at all points. It possesses extreme sensitiveness ; it is always ready...any position : it can be exposed for hours ; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | British Association for the Advancement of Science - 1892 - Страниц: 1258
...gelatine plate, except for its grained texture, meets the needs of the astronomer at all points. It possesses extreme sensitiveness ; it is always ready...any position ; it can be exposed for hours ; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | British Association for the Advancement of Science - 1892 - Страниц: 1146
...gelatine plate, except for its grained texture, meets the needs of the astronomer at all points. It possesses extreme sensitiveness ; it is always ready...any position ; it can be exposed for hours ; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | 1892 - Страниц: 790
...gelatine plate, except for its grained texture, meets theneeds of the astronomer at all points. It possesses extreme sensitiveness; it is always ready...any position; it can be exposed for hours; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | Smithsonian Institution. Board of Regents - 1893 - Страниц: 816
...gelatine plate, except for its grained texture, meets theneeds of the a stronomer at all points. It possesses extreme sensitiveness; it is always ready...any position; it can be exposed for hours ; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | 1900 - Страниц: 600
...gelatine plate, except for its grained texture, meets the needs of the astronomer at all points. It possesses extreme sensitiveness; it is always ready...a,ny position; it can be exposed for hours; lastly, it does not need immediate development, and for this reason can be exposed again to the same object... | |
 | Astronomical Society of the Pacific - 1909 - Страниц: 614
...observatory, over the process of DAGUERRE, and even over that of wet collodion. The silverbromide gelatine plate, which I was the first, I believe, to use for...on succeeding nights ; and so make up by successive instalments, as the weather may permit, the total long exposure which may be needful. » "The power... | |
 | Astronomical Society of the Pacific - 1910 - Страниц: 316
...observatory, over the process of DAGUERRE, and even over that of wet collodion. The silverbromide gelatine plate, which I was the first, I believe, to use for...on succeeding nights ; and so make up by successive instalments, as the weather may permit, the total long exposure which may be needful. "The power of... | |
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The silver-bromide gelatine plate, which I was the first, I believe, to use for photographing the spectra of stars, except for its grained texture, meets the need of the astronomer at all points. This plate possesses extreme sensitiveness ; it is always... 
