Science, Том 23John Michels (Journalist) American Association for the Advancement of Science, 1894 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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Стр. 17
... color and very compact and tough . The groundmass is aphanitic and in it are numerous , lighter blotches and changes of color , between the blotches , and sometimes in them are black crystals of horn- blende ; pyrite is also quite ...
... color and very compact and tough . The groundmass is aphanitic and in it are numerous , lighter blotches and changes of color , between the blotches , and sometimes in them are black crystals of horn- blende ; pyrite is also quite ...
Стр. 133
... color as a result of this injury are soft and hard maple , tulip , white , red and scarlet oak and cottonwood , and blackberry . Probably all plants that color at all would show the same thing . Carrying the observation a little further ...
... color as a result of this injury are soft and hard maple , tulip , white , red and scarlet oak and cottonwood , and blackberry . Probably all plants that color at all would show the same thing . Carrying the observation a little further ...
Стр. 134
... color which the same tree will take on in different seasons . We have in the experimental orchard two kinds of plums , of which some are growing on their own roots , and the rest on the roots of peach trees . The plum trees on peach ...
... color which the same tree will take on in different seasons . We have in the experimental orchard two kinds of plums , of which some are growing on their own roots , and the rest on the roots of peach trees . The plum trees on peach ...
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Meeting of the Iowa Academy of Sciences | 10 |
ROUGHING IT WITH AN ECLIPSE PARTY | 42 |
ESTERBROOKS | 56 |
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