The British encyclopedia, or, Dictionary of arts and sciences, Том 3C. Whittingham, 1809 |
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... taken , by way of example , of fixing a transparent blue enamel upon gold of 22 carats . The artist begins his operation by break . ing his enamel into small pieces in a steel mortar , and afterwards pulverizing it in a mortar of agate ...
... taken , by way of example , of fixing a transparent blue enamel upon gold of 22 carats . The artist begins his operation by break . ing his enamel into small pieces in a steel mortar , and afterwards pulverizing it in a mortar of agate ...
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... taken out by long spring pincers . The work is placed as near as possible at the farther extremity of the muffle ; and as soon as the artist per- ceives a commencement of fusion , he turns it round with great delicacy , in order that ...
... taken out by long spring pincers . The work is placed as near as possible at the farther extremity of the muffle ; and as soon as the artist per- ceives a commencement of fusion , he turns it round with great delicacy , in order that ...
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... taken in sharpening it , that the original general form should be pre- served , by laying the sides flat upon the oil- stone , and rubbing them so as not to round them in the least , after which the graver is to be held sloping towards ...
... taken in sharpening it , that the original general form should be pre- served , by laying the sides flat upon the oil- stone , and rubbing them so as not to round them in the least , after which the graver is to be held sloping towards ...
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... taken place : it will be necessary to strengthen the water as the work becomes nearer completion , but cautiously , lest the ground should be broken ; and every time the aqua fortis is removed the plate must be washed with clean water ...
... taken place : it will be necessary to strengthen the water as the work becomes nearer completion , but cautiously , lest the ground should be broken ; and every time the aqua fortis is removed the plate must be washed with clean water ...
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... taken as many dimensions lower as the for- mer is taken higher . And , in general , an equation of any height will be constructed by the intersection of two lines , whose di- mensions multiplied together produce the dimension of the ...
... taken as many dimensions lower as the for- mer is taken higher . And , in general , an equation of any height will be constructed by the intersection of two lines , whose di- mensions multiplied together produce the dimension of the ...
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