| Samuel Dwight Humphrey - 1849 - 154 pages
...and left. The copies may be made upon Calotype paper in a very short time, the invisible impression being brought out in the way already described. But...circumstances, to obtain a good copy on this sort of pho. tographic paper. The copy should be washed and dried, and the fixing process (which may be deferred... | |
| 1854 - 816 pages
...and that it forms no part of the present invention, I need not describe it here more particularly. Although it takes a much longer time to obtain a copy upon this paper than upon calotype paper, yet the tints of the copy are generally more harmonious and agreeable. On... | |
| Great Britain. Court of Common Pleas - 1855 - 590 pages
...and that it forms no part of the present invention, I nced not describe it here more particularly. Although it takes a much longer time to obtain a copy upon this paper, than upon calotype paper, yet the tints of the copy are generally more harmonious and agreeable. On... | |
| 1900 - 638 pages
...already described. But the author prefers to make the copies upon photographic paper prepared in the way he originally described in a memoir read to the Royal...be washed and dried, and the fixing process (which may be deferred to a subsequent day) is the same as that already mentioned. The copies are made by... | |
| 1900 - 614 pages
...already descril>ed. But the author prefers to make the copies upon photographic paper prepared in the way he originally described in a memoir read to the Royal...appear more harmonious and pleasing to the eye ; it requiresin general from three minutes to thirty minutes of sunshine, according to circumstances, to... | |
| 1905 - 676 pages
...and that it forms no part in the present invention, I need not describe it here more particularly, although it takes a much longer time to obtain a copy upon this paper than upon calo" The Fixing Process.— In order to fix the picture thus obtained, I first dip it in... | |
| 1851 - 412 pages
...'but the copies are positive, having the lights comformable to nature. They also represent the objects in their natural position with respect to right and...be washed and dried, and the fixing process (which -may be deferred to a subsequent day) is the same as that already mentioned. The copies are made by... | |
| 1846 - 652 pages
...memoir read to the Royal Society in February, 1839, and which is made by washing the best writing-paper, first, with a weak solution of common salt, and, next,...of sunshine, according to circumstances to obtain a ?ood copy on this sort of photographic paper. The copy should be washed and dried, and the fixing process... | |
| United States. Patent Office - 1848 - 1028 pages
...and that it forms no part of the present invention, I need not 'describe it here more particularly. Although it takes a much longer time to obtain a copy upon this paper, yet the tints of the copy are generally more harmonious and agreeable. In order to fix such positive copies,... | |
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