 When the solar rays are passed through a print and thrown upon prepared paper, the unshaded parts are slowly copied ; but the lights transmitted by the shaded parts, are seldom so definite as to form a distinct resemblance of them by producing different...  System of Theoretical and Practical Chemistry ... - Page 161by Friedrich Christian Accum, Thomas Cooper - 1814Full view - About this book
 | William Laxton - Architecture - 1839 - 522 pages
...thin coating of line varnish ; but this has not destroyed their susceptibility of becoming coloured. When the solar rays are passed through a print, and...them by producing different intensities of colour. " The images formed by means of a citmera obseitra have been found too faint to produce in any moderate... | |
 | Industrial arts - 1839 - 520 pages
...thin coating of fine varnish ; but this has not destroyed their susceptibility of becoming coloured. When the solar rays are passed through a print, and...them by producing different intensities of colour. " The images formed by means of a comerct ofocura have been found too faint to produce, in any moderate... | |
 | 1839 - 504 pages
...their susceptibility of becoming coloured. 'When the solar rays are passed through a print, and tlirown upon prepared paper, the unshaded parts are slowly...them by producing different intensities of colour. " The images formed by means of a camera obscura hare been found too faint to produce, in any moderate... | |
 | Perry Fairfax Nursey - Industrial arts - 1839 - 508 pages
...thin coating of fine varnish ; but this has not destroyed their susceptibility of becoming coloured. When the solar rays are passed through a print, and...prepared paper, the unshaded parts are slowly copied j but the lights transmitted by the shaded parts are seldom so definite as to form a distinct resemblance... | |
 | Science - 1842 - 496 pages
...parts of the leather or paper, to cause them to become dark when exposed to the rays of the sun. " When the solar rays are passed through a print and...resemblance of them by producing different intensities of color. " With regard to the preparation of the solution, I have found the best proportions those of... | |
 | Physics - 1839 - 1198 pages
...thin coating of fine varnish; but this has iiot destroyed their susceptibility of becoming coloured. When the solar rays are passed through a print and...resemblance of them by producing different intensities af colour. “ The images formed by means of a camera obscura have been found to be too faint to produce,... | |
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