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Books Bücher 1 - 7 von 7 in When it is wished to spot the horn in imitation of tortoise shell, metallic solution,...
" When it is wished to spot the horn in imitation of tortoise shell, metallic solution, must be employed, as follows. To spot it red, a solution of gold in aqua regia must be employed ; to spot it black, a solution of silver in nitric acid must be used... "
American Mechanics' Magazine - Seite 236
1825
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Mechanics Magazine, Band 4

1825
...it makes the horn dry promptly. When it is wished to spot the horn iu imitation of tortoise-shell, metallic solution must be employed, as follows. To-...silver in nitric acid must be used ; and for brown, a Iiot solution of mercury in nitric acid. The right side of the horu must be impregnated with these...
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Mechanics' Magazine and Journal of Science, Arts, and Manufactures, Band 4

1825
...it makes the horn dry promptly. , When it is wished to spot the horn in imitation of tortoise-shell, metallic solution must be employed, as follows. To...solution of silver in nitric acid must be used ; and for browu, a hot solution of mercury in nitric acid. The right side of the horn must be impregnated with...
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Newton's London Journal of Arts and Sciences: Being Record of the ..., Band 10

William Newton, Charles Frederick Partington - 1825
...it makes the horn dry promptly. When it is wished to spot the horn in imitation of tortoise-shell, metallic solution must be employed as follows. — To spot it red, a solution of gold in aqua riga must be employed ; to spot it black, a solution of silver ra nitric acid must be used ; and for...
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Glasgow Mechanics' Magazine, and Annals of Philosophy, Band 4

1826
...metallic. solution must be employed ~*8 : — To spot it red, a solution of gold in aqua rigia mast be employed ; to spot it black, a solution of silver...The right side of the horn must be impregnated with those solutions, and they will assume the colour intended. The brown spots can be produced on the horn...
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Hand-book of the Useful Arts: Including Agriculture, Architecture, Domestic ...

Thomas Antisell - 1852 - 692 Seiten
...spot the horn in imitation of tortoise shell, metallic soIntion must be employed ns follows : To epot it red, a solution of gold in aqua regia must be employed ; to spot it black, isolation of silver in nitric acid must be used ; and for brown, a hot solution of mercury in nitric...
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Putnam's Home Cyclopedia ...

G.P. Putnam & Co - 1852
...in imitation of tortoise shell, metallic solution must be employed as follows : To spot it red, я solution of gold in aqua regia must be employed ; to spot it black, » solution of silver in nitric acid must be used : and for brown, a hot solution of mercury in nitric...
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A dictionary of arts, manufactures, and mines, Band 2

Andrew Ure - 1867
...dry promptly. When it is wished to spot the horn in imitation of tortoise shell, metallic solutions must be employed as follows : — To spot it red,...be impregnated with these solutions, and they will ásenme the colours intended. The brown spots can be produced on the horn by means of a paste made...
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