 | Charles W. Vincent, James Mason - 1842 - 346 דפים
...water ; and, being placed on a smooth board, gently washed by allowing pure water to flow over it, and dried in the dark at common temperatures. Papers thus...at any moment rendered far more sensitive than any photographic preparation, excepting the Calotype, (which it quite equals,) by simply washing it over... | |
 | 1841 - 542 דפים
...water ; and, being placed on a smooth board, gently washed by allowing pure water to flow over it, and dried in the dark at common temperatures. Papers thus...sensitive than any known photographic preparation, excepting the Calotype, which it quite equals, by simply washing it over with a solution formed of... | |
 | W H. T - 1843 - 66 דפים
...the same solution. It is then placed for a minute in a solution of one drachm of hydriodate of potass in six ounces of water ; and being placed on a smooth...prepared may be kept for any length of time, and are, at a moment, rendered far more sensitive than any known photographic preparation, except the calotype,... | |
 | Perry Fairfax Nursey - 1843 - 678 דפים
...then washed with a solution of the bichromate of potash and dried at a little distance from the fire. Papers thus prepared may be kept for any length of time, and are always ready for use. They are not sufficiently sensitive for use in the camera obscura, but they are... | |
 | British Association for the Advancement of Science - 1844 - 480 דפים
...then washed with a solution of the bichromate of potash and dried at a little distance from the fire. Papers thus prepared may be kept for any length of time, and are always ready for use. They are not sufficiently sensitive for use in the camera obscura, but they are... | |
 | 1843 - 508 דפים
...then washed with a solution of the bichromate of potash and dried at a little distance from the lire. Papers thus prepared may be kept for any length of time, and are always ready for me. They are not sufficiently sensitive for use in the camera obscnra, but they are... | |
 | Encyclopaedia - 1851 - 276 דפים
...ounces of water, placed on a smooth board, gently washed by allowing some water to flow over it, and dried in the dark at common temperatures. Papers thus...may be kept for any length of time, and are at any time rendered sensitive by simply washing them over with a solution formed of one drachm of the ferroeyanate... | |
 | Robert Hunt - 1852 - 324 דפים
...ounces of water, placed on a smooth board, gently washed by allowing some water to flow over it, and dried in the dark at common temperatures. Papers thus...may be kept for any length of time, and are at any time rendered sensitive by simply washing them over with a solution formed of one drachm of the ferrocyanate... | |
 | Robert Hunt - 1852 - 378 דפים
...ounces of water, placed on a smooth board, gently washed by allowing some water to flow over it, and dried in the dark at common temperatures. Papers thus...may be kept for any length of time, and are at any time rendered sensitive by simply washing them over with a solution formed of one drachm of the ferrocyanate... | |
 | Robert Hunt - 1853 - 356 דפים
...ounces of water, placed on a smooth board, gently washed by allowing some water to flow over it, and dried in the dark at common temperatures. Papers thus...may be kept for any length of time, and are at any time rendered sensitive by simply washing them over with a solution formed of one drachm of the ferrocyauate... | |
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... distilled water ; it is quickly dried, and a second time washed with the same solution. It is then, when dry, placed for a minute in a solution of... 
