 | John Timbs - 1839 - 446 pages
...While attempting to prepare paper with the chromate of silver, for which purpose (says the author) I used first the chromate of potash, and then the...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | Jacob Bigelow - 1840 - 424 pages
...salt of silver is dispensed with : by MUNGO PONTON, Esq., FRSE, Foreign Secretary Society of Arts for Scotland. Communicated by the Society of Arts.* While...water, when it will be found that those portions of the salt, which have not been acted on by the light, are readily dissolved out, while those which have... | |
 | Jacob Bigelow - 1840 - 418 pages
...object is laid in the usual way on this paper, the portion exposed to the light speedily becomes lawny, passing more or less into a deep orange, according...water, when it will be found that those portions of the salt, which have not been acted on by the light, are readily dissolved out, while those which have... | |
 | 1840 - 516 pages
...the light speedily becomes tawny, passing more or less into a deep orange according to the strength of the light. The portion covered by the object retains...water, when it will be found that those portions of the salt which h«^e not been acted on by the light are really dissolved out, while those which have... | |
 | Royal Scottish Society of Arts - 1841 - 444 pages
...silver, for which purpose I used first the chromate of potash, and then the bichromate of that alki'li ; I discovered that when paper was immersed in the bichromate...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | 1842 - 496 pages
...degree of transparency in the different parts of the object. hi this state, or course, the drawiag though very beautiful, is evanescent. To fix it, all...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | Encyclopaedia - 1851 - 276 pages
...the light speedily becomes tawny, passing more or less into a deep orange, according to the strength of the light. The portion covered by the object retains...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | Robert Hunt - 1852 - 324 pages
...the light speedily becomes tawny, passing more or less into a deep orange, according to the strength of the light. The portion covered by the object retains...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | Robert Hunt - 1853 - 356 pages
...the light speedily becomes tawny, passing more or less into a deep orange, according to the strength of the light. The portion covered by the object retains...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
 | Robert Hunt - 1852 - 380 pages
...the light speedily becomes tawny, passing more or less into a deep orange, according to the strength of the light. The portion covered by the object retains...water, when it will be found that those portions of the salt which have not been acted on by the light are readily dissolved out, while those which have... | |
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... of the light. The portion covered by the object retains the original bright yellow tint, which it had before exposure, and the object is thus represented yellow upon an orange ground, there being several gradations of shade, or tint, according to... 
