 | Gill's scientific, technological and microscopic repository - 1828 - عدد الصفحات: 436
...when it is ue~ cessary to transfer fine line engravings; the lines of these are so delicate, and so near to each other, that they either do not take well...been printed on common half-sized paper. After having dry polished a stone very perfectly, we warmed it, rubbed it with spirits of turpentine, and applied... | |
 | Luke Hebert - 1829 - عدد الصفحات: 392
...engravings, indefinitely ; so that they might be furnished at a quarter of their present actual value. In fact, all those which are done in lines, or those...engraving, which had been printed on common half-sized paperi After having dry-polished a stone, very perfectly, we warmed it, rubbed it with spirits of turpentine,... | |
 | Luke Hebert - 1835 - عدد الصفحات: 938
...when it is necessary to transfer fine line engravings ; the lines of these are во delicate, and so near to each other, that they either do not take well...impressions ; and this part of the art requires improvement. In the office of M. de Lasteyrie, they had succeeded in transferring to stone a small highly-finished... | |
 | Luke Hebert - 1836 - عدد الصفحات: 942
...when it is necessary to transfer fine line engravings ; the lines of these are so delicate, and so near to each other, that they either do not take well on the stone, or are apt to he crushed and confounded together by the effect of the pressure. Much practice and address are necessary... | |
 | 1841 - عدد الصفحات: 444
...when it is necessary to transfer fine line engravings ; the lines of these are so delicate, and so near to each other, that they either do not take well on the stone, or are apt to be crushed ud confounded together by the effect of the pressure. Much practice and address are necessary to obtain... | |
 | Luke Hebert - 1846 - عدد الصفحات: 944
...requires improvement. In the office of M. de Lasteyrie, they had succeeded in transferring to (tone a small highly-finished engraving, which had been...After having dry-polished a stone very perfectly, it was warmed, rubbed with spirits of turpentine, and then the engraving was applied to it. This had,... | |
 | 1874 - عدد الصفحات: 1186
...when it is necessary to transfer fine line engravings ; the lines of these are so delicate, and so near to each other, that they either do not take well...impressions ; and this part of the art requires improvement In the office of >I. de Lasteyrie, they had succeeded in transferring to stone a small highly finished... | |
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... fact, all those which are done in lines, or those in which the shadows are boldly executed, are capable of reproducing good impressions by means of autography. The operation becomes extremely difficult when it is necessary to transfer fine line engravings... 