 | Medicine - 1808 - 544 pages
...malleable iron, alloyed with nickel. 4. The lead-coloured mass, which cements these things together, has been described already, and constitutes by far...exposed to the air, the stone becomes covered with numc rous reddish spots, which do not appear in a fresh fracture, and arise manifestly from the rusting... | |
 | Samuel Cooper Thacher, David Phineas Adams, William Emerson - American literature - 1808 - 702 pages
...inch. They may be made very conspicuous by drawing a file across the stone. 4. The lead-coloured mass has been described already, and constitutes by far...part of the stone. After being wet and exposed to the air,the stone becomes covered with numerous reddish spots, which do not appear in a fresh fracture,... | |
 | Samuel Cooper Thacher, David Phineas Adams, William Emerson - American literature - 1808 - 710 pages
...drawing a file across the stone. 4- The lead-coloured mass has been described already, and consti(Uites by far the greater part of the stone. After being wet and exposed to the air,the stone becomes covered with numerous reddish spots, which do not appear in a fresh fracture,... | |
 | David Phineas Adams, William Emerson, Samuel Cooper Thacher - 1808 - 708 pages
...across the stone. 4- The lead -coloured mass has been described already, and constitutes by far tlje greater part of the stone. After being wet and exposed to the air,the stone becomes covered with numerous reddish spots, which do not appear in a fresh fracture,... | |
 | American Philosophical Society - Electronic journals - 1809 - 532 pages
...stone, when they become brilliant. 4. The lead-coloured mass, which cements these things together, has been described already, and constitutes by far...fresh fracture, and arise manifestly from the rusting ot the iron. 5. There are a few instances of matter dispersed irregularly through the stone, which... | |
 | English literature - 1809 - 688 pages
...stone becomes covered with numerous rtddfeh spots, which do not appear in a fresh fracture, and aribe manifestly from the rusting of the iron. finally,...in the laboratory of this College according to the excellerit instructions of Howard, Vauquclin, and Fourcroy. The analysis was hastv, and (tended mH... | |
 | Agriculture - 1809 - 520 pages
...Their colour is whitish, and they were mistaken fpr silver ; but are an alloy of iron with nickel. After being wet and exposed to the air, the stone becomes covered with numerous red spots, which manifestly arise from the iron. It appears therefore that these stones are perfectly... | |
 | Connecticut Academy of Arts and Sciences - American periodicals - 1810 - 458 pages
...inch. They may be made very conspicuous by drawing a. file across the stone. 4. The lead-coloured mass has been described already, and constitutes by far...and arise manifestly from the rusting of the iron. 5. There are a few instances of matter dispersed irregularly through the stone, which are considered... | |
 | Geology - 1869 - 488 pages
...inch. They may be made very conspicuous by drawing a file across the stone. 4. The lead-colored mass has been described already, and constitutes by far...and arise manifestly from the rusting of the iron. ART. II. — On the distillation of dense Hydrocarbons at high temperatures, technically termed " Cracking;"... | |
 | Geology - 1869 - 468 pages
...inch. They may be made very conspicuous by drawing a file across the stone. 4. The lead-colored mass has been described already, and constitutes by far...and arise manifestly from the rusting of the iron. 5. There are a few instances of matter dispersed irregularly through the stone, which are considered... | |
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The lead-coloured mass has been described already, and constitutes by far the greater part of the stone. After being wet and exposed to the air, the stone becomes covered with numerous reddish spots, which do not appear in a fresh fracture, and arise... 