American Edition of the British Encyclopedia: Or, Dictionary of Arts and Sciences ; Comprising an Accurate and Popular View of the Present Improved State of Human Knowledge, Volum 6Mitchell, Ames and White, 1819 |
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... heating in a crucible some pure quicksilver ; and when it is nearly boiling , adding to it about a sixth of its weight ... heat , such as metals , and sometimes glass and porcelain the se- cond method is practised with those sub- stances ...
... heating in a crucible some pure quicksilver ; and when it is nearly boiling , adding to it about a sixth of its weight ... heat , such as metals , and sometimes glass and porcelain the se- cond method is practised with those sub- stances ...
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... heat- ed to about the temperature of an anneal- ing oven , the gum burns off , and the borax by vitrifying cements the gold with great firmness to the glass ; after which it may be burnished . The gilding upon porce- lain is in like ...
... heat- ed to about the temperature of an anneal- ing oven , the gum burns off , and the borax by vitrifying cements the gold with great firmness to the glass ; after which it may be burnished . The gilding upon porce- lain is in like ...
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... heat requisite for this purpose will , in ma- ny cases , bring the temper of the steel too low on such occasions , the way al- ready described for gilding on copper is sometimes practised ; that is , the parts of the steel to be gilded ...
... heat requisite for this purpose will , in ma- ny cases , bring the temper of the steel too low on such occasions , the way al- ready described for gilding on copper is sometimes practised ; that is , the parts of the steel to be gilded ...
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... heat , form no data for judging of those on more elevated situations , where , it is asserted , a greater quantity of snow falls and becomes ice than can possibly be dissolved annually ; and experience proves , beyond doubt , that ...
... heat , form no data for judging of those on more elevated situations , where , it is asserted , a greater quantity of snow falls and becomes ice than can possibly be dissolved annually ; and experience proves , beyond doubt , that ...
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... heat by con- centration and refraction in some favour- able positions , must produce very violent thaws ; the air ... heat of the earth , is always above the freezing point , as is evident from the heat of the springs which issue from ...
... heat by con- centration and refraction in some favour- able positions , must produce very violent thaws ; the air ... heat of the earth , is always above the freezing point , as is evident from the heat of the springs which issue from ...
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American Edition of the British Encyclopedia: Or Dictionary of Arts ..., Volum 6 William Nicholson Uten tilgangsbegrensning - 1818 |
American Edition of the British Encyclopedia: Or, Dictionary of ..., Volum 6 William Nicholson Uten tilgangsbegrensning - 1819 |
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