 | Friedrich Christian Accum - 1803 - 430 Seiten
...unaltered, the colour of the nitrate becomes deepest. * Journals of the Royal Institution, Nov*, PWhen the shadow of any figure is thrown upon the prepared...leather ; and, in this case, it is more readily acted upon than when paper is used. After the colour has been once fixed upon the leather or paper, it cannot... | |
 | 1843 - 630 Seiten
...shades of the picture ; and where ' the light is unaltered, the colour of the light becomes deepest. ' For copying paintings on glass the solution should...leather, and in this case, it is more readily acted upon than ' when paper is used.' Mr Wedgewood made various attempts iojix these copies, that is, to... | |
 | Friedrich Christian Accum - 1808 - 428 Seiten
...shades of the picture ; and where the light is unaltered the colour of the nitrate becomes deepest. When the shadow of any figure is thrown upon the prepared...leather ; and in this case it is more readily acted upon than when paper is used. After the colour has been once fixed upon the leathdr or paper, it cannot... | |
 | 1842 - 496 Seiten
...shades of the .picture, and where the light is unaltered, the color of the nitrate becomes deepest. " When the shadow of any figure is thrown upon the prepared...leather ; and, in this case, it is more readily acted upon than when paper is used. " After the color has been once fixed upon the leather or paper, it cannot... | |
 | 1843 - 1266 Seiten
...shades of the picture: 'and •where the light is unaltered, the colour •of tbe light becomes deepest. For copying •paintings on glass the solution should...leather, and in this case, it is more readily • acted upon than when paper is used/ Mr. Wedgewood made various attempts to fir these copies, that is, to... | |
 | THE EDINBURGH REVIEW OR CRITICAL JOURNAL - 1843 - 672 Seiten
...shades of the picture ; and where * the light is unaltered, the colour of the light becomes deepest. ' For copying paintings on glass the solution should...leather, and in this case, it is more readily acted upon than * when paper is used.' Mr Wedgewood made various attempts iofix these copies, that is, to... | |
 | 1871 - 808 Seiten
...nearly black. The alterations of color take place more speedily in proportion as the light is intense. When the shadow of any figure is thrown upon the prepared...is more readily acted on than when paper is used. The copy of a painting, or the profile, immediately after being taken, must be kept in an obscure place."... | |
 | 1847 - 598 Seiten
...shades of the picture, and where the light is unaltered the colour of the nitrate becomes deepest. When the shadow of any figure is thrown upon the prepared...leather, and in this case it is more readily acted upon than when paper is used. After the colour has been once fixed upon the leather or paper, it cannot... | |
 | 1847 - 610 Seiten
...ivliite, and the other parts speedily become <'''••; /•. For copying paintings on glass, tho solution should be applied on leather, and in this case it is more readily acted upon, than when paper is used. After the color has been once fixed upon the leather or paper, it cannot... | |
 | Robert Kemp Philp - 1864 - 1126 Seiten
...are more efficacious ; but blue and •violet light produce the most decided and powerful effects. When the shadow of any figure is thrown upon the prepared...leather; and in this case it is more readily acted on U'.-ui when paper is used. After the <x>loisV has been once fixed on the leather or paper, it cannot... | |
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When the shadow of any figure is thrown upon the prepared surface, the part concealed by it remains white, and the other parts speedily become dark. 
