Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
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Результати 1-3 із 56
Сторінка 66
... determining elevations . This barometer , made by Richard Frères in Paris ( France ) , was the large precision type with ... determined separately and in place by means of the " Soiltex " method according to Spurway , which expresses the ...
... determining elevations . This barometer , made by Richard Frères in Paris ( France ) , was the large precision type with ... determined separately and in place by means of the " Soiltex " method according to Spurway , which expresses the ...
Сторінка 68
... determined , except ferrous iron , which could not be determined in the presence of so much organic matter . Be- cause of its importance in our considerations the organic matter or humus was determined additionally in three ways : ( 1 ) ...
... determined , except ferrous iron , which could not be determined in the presence of so much organic matter . Be- cause of its importance in our considerations the organic matter or humus was determined additionally in three ways : ( 1 ) ...
Сторінка 84
... determined by author ; CHEMICAL ANALYSES Sh means determined by Earl V. Shannon ; Columns I refer to the percentages in the air - dry material as is ; Columns II refer to the same percentages recalculated on the basis of mineral part ...
... determined by author ; CHEMICAL ANALYSES Sh means determined by Earl V. Shannon ; Columns I refer to the percentages in the air - dry material as is ; Columns II refer to the same percentages recalculated on the basis of mineral part ...
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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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