ScienceJohn Michels (Journalist) 1939 |
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Page 83
... concerned with the control of such pests . The most comprehensive treatise prior to Professor Quayle's book was " Insects Affecting the Orange , " by H. G. Hubbard , a publica- tion of 227 pages by the U. S. Department of Agricul- ture ...
... concerned with the control of such pests . The most comprehensive treatise prior to Professor Quayle's book was " Insects Affecting the Orange , " by H. G. Hubbard , a publica- tion of 227 pages by the U. S. Department of Agricul- ture ...
Page 167
... concerned with the intra - organ- ismal environment . It is not advisable in the present state of our knowl- edge to dwell upon a general scheme of classification of ecological generalizations . We feel , however , that such a scheme ...
... concerned with the intra - organ- ismal environment . It is not advisable in the present state of our knowl- edge to dwell upon a general scheme of classification of ecological generalizations . We feel , however , that such a scheme ...
Page 305
... concerned , thiamin may be considered to be a hormone , a vitamin or something which is neither a hormone nor a vitamin . For the time being I have preferred to refer to it and similar substances by the general term " growth substance ...
... concerned , thiamin may be considered to be a hormone , a vitamin or something which is neither a hormone nor a vitamin . For the time being I have preferred to refer to it and similar substances by the general term " growth substance ...
Contents
Sci 105 | 1 |
Philosophical Society American 382 E G CONKLIN 436 | 9 |
ALEXANDER J Science in the Old South | 12 |
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