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" But the author prefers to make the copies upon photographic paper prepared in the way which he originally described in a memoir read to the Royal Society, in February 1839, and which is made by washing the best writing paper, first with a weak solution... "
The Magazine of Science, and Schools of Art - Page 117
1842
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The Repertory of patent inventions [formerly The Repertory of ..., Volume 16

1771 - 432 pages
...and that it forms uo 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...
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American Journal of Pharmacy and the Sciences Supporting Public ..., Volume 13

1842 - 386 pages
...but the copies are positive, having the lights conformable to nature. They also represent the objects in their natural position with respect to right and...pleasing to the eye ; it requires in general from three to thirty minutes of sunshine, according to circumstances, to obtain a good copy on this sort of photographic...
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The Annals of Electricity Magnetism and Chemistry and Guardian of ..., Volume 7

1841 - 542 pages
...but the copies are positive, having the lights conformable 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 subse quent day) is the same as that already mentioned. The copies are made by...
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Philosophical Magazine

1841 - 1426 pages
...with a weak solution of common salt, and next with a solution of nitrate of silver. Although it tnkes a much longer time to obtain a copy upon this paper,...tints appear more harmonious and pleasing to the eye j it requires in general from 3 minutes to 30 minutes of sunshine, according to circumstances, to obtain...
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The Franklin Journal, and American Mechanics' Magazine

1842 - 930 pages
...in the way which he originally described in a memoir read to the Royal Society in February, lS39,and which is made by washing the best writing paper, first...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...
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Journal of the Franklin Institute

1842 - 886 pages
...Society in February, 1839, and which is made by washing the best writing paper, first with a weaksolution of common salt, and next with a solution of nitrate...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...
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Abstracts of the Papers Printed in the Philosophical Transactions ..., Volume 4

Royal Society (Great Britain) - 1843
...but the copies are positive, having the lights conformable to nature. They also represent the objects in their natural position with respect to right and...pleasing to the eye ; it requires in general from 3 minutes to 30 minutes of sunshine, according to circumstances, to obtain a good copy on this sort...
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Abstracts of the Papers Printed in the Philosophical Transactions ..., Volume 4

Royal Society (Great Britain) - 1843 - 552 pages
...made by washing the best writing paper, first with a weak solution of common salt, and /•'.(•/ with a solution of nitrate of silver. Although it...pleasing to the eye ; it requires in general from 3 minutes to 30 minutes of sunshine, according to circumstances, to obtain a good copy on this sort...
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Littell's Living Age

1846 - 636 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,...circumstances to obtain a good copy on this sort of photoirraphic paper. The copy should be washed and dried, and the fixing process (which may be deferred...
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Annual Report of the Commissioner of Patents

United States. Patent Office - 1848
...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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