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書籍 書目1 - 9,共 9 頁;搜尋條件:... of silver; and this is accordingly the quantity used. It is true that there is...
" ... of silver; and this is accordingly the quantity used. It is true that there is already some silver in the alloy, but a little excess over the quantity required for the quartation does no injury to the process. The lead used for the cupellation is... "
Illustrated History of the United States Mint: With a Complete Description ... - 第 26 頁
George Greenlief Evans 著 - 1888 - 160 頁
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Journal of the Franklin Institute, 第 41-42 卷

Franklin Institute (Philadelphia, Pa.) - 1846
...injury to the process. The lead used for the cupellation is kept prepared in thin sheets, rat into square pieces, which should each weigh about ten times...of a hollow cone, and into this are introduced the assay-gold and the quartation-silver, when the lead is closed round them, and pressed into a ball....
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The American Numismatical Manual of the Currency Or Money of the Aborigines ...

Montroville Wilson Dickeson - 1860 - 271 頁
...injury to the process. " The lead used for the cupellation is kept prepared in thin sheets cut into square pieces, which should each weigh about ten times as much as the gold under assays. " The lead is now rolled into the form of a hollow cone, and into this are introduced the assay...
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The American Numismatic Manual of the Currency of Money of the Aborigines ...

Montroville Wilson Dickeson - 1865 - 271 頁
...injury to the process. " The lead used for the cupellation is kept prepared in thin sheets cut into square pieces, which should each weigh about ten times as much as the gold under assays. " The lead is now rolled into the form of a hollow cone, and into this are introduced the assay...
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Annual Report

1869
...injury to the process. The lead used for the cupellation is kept prepared in thin sheets, cut into ' square pieces, which should each weigh about ten times...and the quartation silver, when the lead is closed round them and pressed into a ball. The furnace having been properly heated, and the cupels placed...
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House Documents, Otherwise Publ. as Executive Documents: 13th ..., 第 12 卷

1869
...injury to the process. The lead used for the cupellation is kept prepared in thin sheets, cut into square pieces, which should each weigh about ten times...and the quartation silver, when the lead is closed round them and pressed into a ball. ¡t ASSAY OP GOLD AND SILVER COINS. 423 brought to the same temperature,...
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The Kansas City Review of Science and Industry, 第 3 卷

1880
...accordingly the quantity use: Thin sheets of lead for cupellation are cut into square pieces and rolled into form of a hollow cone, and into this are introduced the assay gold and the qcr tation silver. The lead is then closed around them and pressed into a balL I: the furnace are placed...
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Report of the Board of Regents

Smithsonian Institution. Board of Regents - 1872
...injury to the process. The lead used for the cupellation is kept prepared in thin sheets, cut into square pieces, which should each weigh about ten times...and the quartation silver, when the lead is closed round them and pressed into a ball. brought to the same temperature, the leaden ball, with its contents,...
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Annual Report of the Board of Regents of the Smithsonian Institution: 1868

1869
...cupellation is kept prepared in thin sheets, cut into square pieces, which should each weigh about teu times as much as the gold under assay. The lead is...and the quartation silver, when the lead is closed round them and pressed into a ball. brought to the same temperature, the leaden ball, with its contents,...
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Journal of the Franklin Institute

1846
...injury to the process. The lead used for the cupellation is kept prepared in thin sheets, cut into square pieces, which should each weigh about ten times...of a hollow cone, and into this are introduced the assay-gold and the quartation-silver, when the lead is closed round them, and pressed into a ball....
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