 | Smithsonian Institution. Board of Regents - 1902 - Liczba stron: 1242
...of meteorites were early made out. Howard in 1802, from a chemical investigation of various "stony and metallic substances which at different times are said to have fallen on the earth, also of various kinds of native iron," drew the conclusion that a content of nickel characterized... | |
 | Smithsonian Institution. Board of Regents - 1902 - Liczba stron: 1204
...of meteorites were early made out. Howard in 1S02, from a chemical investigation of various "stony and metallic, substances which at different times are said to have, fallen on the earth, also of various kinds of native iron," drew the conclusion that a content of nickel characterized... | |
 | Roberta J. M. Olson, Jay M. Pasachoff - 1999 - Liczba stron: 412
...Burke, 5ff. 42 lbid., 17-18,45-46. 43 See E. Howard, "Experiments and Observations on certain stony and metallic Substances which at different Times are said to have fallen on the Earth; also on various Kinds of native ircrn" Philosophical Transactions, 92, 1 802, 168-2 1... | |
 | 1901 - Liczba stron: 768
...of meteorites were early made out. Howard in 1802, from a chemical investigation of various "stony and metallic substances which at different times are said to have fallen on the earth, also of various kinds of native iron," drew the conclusion that a content of nickel characterized... | |
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... of terrestrial origin does at intervals come to the earth. Since this beginning the study of meteorites has been one of constantly widening interest and purport. The essentially distinguishing features of meteorites were early made out. Howard in... 