The British encyclopedia, or, Dictionary of arts and sciences, Том 3C. Whittingham, 1809 |
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... glass , twelve parts ; minium , eighteen ; potash , four ; nitre , four ; borax , two ; oxide of tin three ; oxide of cobalt , one - eighth of a part , gave a smooth pearl co- loured enamel , not brittle or subject to crack , and ...
... glass , twelve parts ; minium , eighteen ; potash , four ; nitre , four ; borax , two ; oxide of tin three ; oxide of cobalt , one - eighth of a part , gave a smooth pearl co- loured enamel , not brittle or subject to crack , and ...
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... glass without lead . The application of these colours consti- tutes the art of painting upon glass ; an art much practised in former ages , but which was , till lately , supposed to be lost , because out of fashion . It , however , too ...
... glass without lead . The application of these colours consti- tutes the art of painting upon glass ; an art much practised in former ages , but which was , till lately , supposed to be lost , because out of fashion . It , however , too ...
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... glass rather from his own expe- rience than from the instructions in the work just mentioned . The materials and fluxes which enter into the compositions of the colours for painting on glass are , in general , the same as those applied ...
... glass rather from his own expe- rience than from the instructions in the work just mentioned . The materials and fluxes which enter into the compositions of the colours for painting on glass are , in general , the same as those applied ...
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... glass . They do not change on the latter , but on the former they almost entirely disappear by the first fire ; and they must be laid on very heavily in order to have any part visible . It is to the presence of lead in their glaze that ...
... glass . They do not change on the latter , but on the former they almost entirely disappear by the first fire ; and they must be laid on very heavily in order to have any part visible . It is to the presence of lead in their glaze that ...
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... glass are the same as for tender porcelain . Concerning Greens . The greens , employed in painting , are made with the green oxide of copper , or sometimes with a mixture of yellow and blue . They must be previously melted with their ...
... glass are the same as for tender porcelain . Concerning Greens . The greens , employed in painting , are made with the green oxide of copper , or sometimes with a mixture of yellow and blue . They must be previously melted with their ...
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