Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
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Сторінка 66
American Philosophical Society. Field Methods Since topographic maps are wanting for many of the mountains to be ... method according to Spurway , which expresses the hydrogen - ion con- centration sufficiently accurately for all ...
American Philosophical Society. Field Methods Since topographic maps are wanting for many of the mountains to be ... method according to Spurway , which expresses the hydrogen - ion con- centration sufficiently accurately for all ...
Сторінка 67
American Philosophical Society. Laboratory Methods In the laboratory the samples were passed as air - dry soil through a sieve with round holes of 2 mm . diameter , according to the usual methods in soil - analysis . It was often ...
American Philosophical Society. Laboratory Methods In the laboratory the samples were passed as air - dry soil through a sieve with round holes of 2 mm . diameter , according to the usual methods in soil - analysis . It was often ...
Сторінка 214
... methods , leading to multilateral treaties , are fast producing new rules . Official codification , in a legislative sense , is in progress , the first conference having been held last month . A means of revising treaties , not yet ...
... methods , leading to multilateral treaties , are fast producing new rules . Official codification , in a legislative sense , is in progress , the first conference having been held last month . A means of revising treaties , not yet ...
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facing 131 | 4 |
Ten Unsolved Mysteries of the Stellar Universe By HARLOU | 13 |
THE AMERICAN PHILOSOPHICAL SOCIETY HELD AT PHILADELPHIA | 17 |
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