As the more perfectly the coins are cleaned and dried,* the less the effect, and as a dry perspiration (so to call it) must exist in a greater or less degree on all coins, since they pass through so many hands, and as perspiration is slightly acid. 4thly.... Journal of the Franklin Institute - Page 115by Franklin Institute (Philadelphia, Pa.) - 1849Full view - About this book
| John Holmes Agnew, Eliakim Littell - 1843 - 612 pages
...metal, and judging from the experiments with silver and copper, the more oxidable the better ; 3dly, as the more perfectly the coins are cleaned and dried*...perspiration (so to call it) must exist in a greater or le.-?s degree on all coins, since they pass through so many hands, and as perspiration is slightly... | |
| 1843 - 602 pages
...metal, and judging from the experiments with silver and copper, the more oxidable the better ; 3dly, as the more perfectly the coins are cleaned and dried*...perspiration (so to call it) must exist in a greater or le^s degree on all coins, since they pass through so many hands, and as perspiration is slightly acid... | |
| John Holmes Agnew - 1843 - 612 pages
...metal, and judging from the experiments with silver and copper, the more oxidable the better ; 3dly, as the more perfectly the coins are cleaned and dried*...a dry perspiration (so to call it) must exist in a greaier or le<-s degree on all coins, since they pass through so many hands, and as perspiration is... | |
| Perry Fairfax Nursey - 1843 - 538 pages
...experiments with silver and copper the more oxidable the better ; 3rdly, As the more perfectly the coins arc cleaned and dried* the less the effect, and as a dry...it) must exist in a greater or less degree on all coin?, since they pass through so many hands, and as perspiration is slightly acid ; 4thly, As even... | |
| 1843 - 536 pages
...metal, and judging from the experiments with silver and cupper the more oxidable the better ; ."inlU , As the more perfectly the coins are cleaned and dried*...slightly acid ; 4thly, As even with clean coins the effectf by actual contact must be admitted, bnt still is greater when there is a difference in the... | |
| 1843 - 884 pages
...metal, and judging from the experiments with silver and copper, the more oxidable the better. 3rdly. As the more perfectly the coins are cleaned and dried,*...still is greater when there is a difference in the naturej of the metal ; and Sthly. As when the metals are not in contact (being removed only the one-twentieth... | |
| 1843 - 570 pages
...metal, and judging from the experiments with silver and copper the more oxidable the better ; 3rdly, as the more perfectly the coins are cleaned and dried*...slightly acid ; 4thly, as even with clean coins the effect! by actual contact must be admitted, but still is greater when there is a difference in the... | |
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