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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... plants about us , we soon realize that a very large majority live on land , the number of aquatic species being relatively small . Of the land plants the major part are the familiar flowering plants . Next in number are the many fungi ...
... plants about us , we soon realize that a very large majority live on land , the number of aquatic species being relatively small . Of the land plants the major part are the familiar flowering plants . Next in number are the many fungi ...
Стр. 180
... plants must be regarded as perhaps the most momentous event in the history of the plant kingdom . In the comparatively uniform environment of aquatic life there is much less scope for variation and selection to operate ; but once ...
... plants must be regarded as perhaps the most momentous event in the history of the plant kingdom . In the comparatively uniform environment of aquatic life there is much less scope for variation and selection to operate ; but once ...
Стр. 185
... plants makes it extremely probable that the living seed plants also represent several independent lines of development . Of the older types of seed plants still existing , the conifers - pines , firs , redwood , etc. - are the most nu ...
... plants makes it extremely probable that the living seed plants also represent several independent lines of development . Of the older types of seed plants still existing , the conifers - pines , firs , redwood , etc. - are the most nu ...
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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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