Science, Том 72John Michels (Journalist) American Association for the Advancement of Science, 1883 Since Jan. 1901 the official proceedings and most of the papers of the American Association for the Advancement of Science have been included in Science. |
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... experiments may be necessary , and in the case of specific mixtures of gases requiring the complete absence of the rare gases or their presence in definite proportions , the appa- ratus may become complicated and the technique very ...
... experiments may be necessary , and in the case of specific mixtures of gases requiring the complete absence of the rare gases or their presence in definite proportions , the appa- ratus may become complicated and the technique very ...
Стр. 426
... experiments that the course of absorption of nitrogen , phosphorus and potassium from fertilizer mixtures containing only two of them is in accordance with the deductions made by Liebig.1 Thus , a com- parison of the absorption graphs ...
... experiments that the course of absorption of nitrogen , phosphorus and potassium from fertilizer mixtures containing only two of them is in accordance with the deductions made by Liebig.1 Thus , a com- parison of the absorption graphs ...
Стр. 609
... experiments which are typical of many performed . The experiments were carried out in pure culture . TABLE I THE NECESSITY OF MANGANESE FOR THE GROWTH OF CHLORELLA SP . Ringer's solution ( control ) 20 0 In addition , an experiment ...
... experiments which are typical of many performed . The experiments were carried out in pure culture . TABLE I THE NECESSITY OF MANGANESE FOR THE GROWTH OF CHLORELLA SP . Ringer's solution ( control ) 20 0 In addition , an experiment ...
Содержание
B Mosquito Vectors of Experimental Yellow | 1 |
Polar Exploration I BowMAN 439 | 13 |
Sudan III Behavior of E H MACARTHUR | 14 |
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