 | Literary and Philosophical Society of Manchester - 1874 - 556 pages
...instantly changes to a deep brown or to a black colour, varying according to the amount of exposure. A tint of the decomposed vanadate, which is of so slight...employed for the purposes of photographic printing. The unexposcd parts are converted, by treatment in the silver bath, into yellow silver vanadate. This substance... | |
 | Alfred Ely Beach - 1875 - 648 pages
...instantly changes to a deep brown or to a black color, varying according to the amount of exposure. A tint of the decomposed vanadate, which is of so slight...employed for the purposes of photographic printing. The unexposed parts are converted by treatment in the silver bath, into yellow silver vanadate. This substance... | |
 | Manchester Literary and Philosophical Society - 1876 - 406 pages
...parts instantly changes to a deep brown or to a black, varying according to the amount of exposure. A tint of the decomposed vanadate which is of so slight...immersion in the silver nitrate, be toned so as to become very perceptible. It is evident that paper prepared in this way might be employed for the purposes... | |
 | 1874 - 656 pages
...black colour, varying according tithe amount of exposure. A tint of the decomposed vanadate, which ia of so slight an amount as to be with difficulty distinguished...employed for the purposes of photographic printing. The unexposed part" are converted, by treatment in the silver bath, into yellow silver vanadate. This substance... | |
 | John Holmes Agnew, Walter Hilliard Bidwell - 1875 - 824 pages
...brown or a black color, varying according to the amount of exposure.' We are further informed that 'a tint of the decomposed vanadate, which is of so slight...be toned so as to exhibit a very perceptible tint.' Here, then, is a paper which photographers may experiment with after their manner, and discover the... | |
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... varying according to the amount of exposure. A tint of the decomposed vanadate, which is of so slight an amount as to be with difficulty distinguished from the whiteness of the paper, will, by immersion in the silver nitrate, be toned so as to exhibit... 