The American Naturalist, Volumen21Essex Institute, 1887 |
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Página 613
... region . They are peculiar in having thick , fleshy stems , generally with small scales in place of leaves borne on ... regions , whither the plants have probably been driven from an inability to cope with more vigorous forms of ...
... region . They are peculiar in having thick , fleshy stems , generally with small scales in place of leaves borne on ... regions , whither the plants have probably been driven from an inability to cope with more vigorous forms of ...
Página 615
... the same curious forms of stems adapted to a plant's existence in dry and arid regions form curious features in the homes of civilized man . METHODS OF INSTRUCTION IN GENERAL GEOLOGY.1 BY H. S. WILLIAMS 1887 ] 615 The Milkweeds .
... the same curious forms of stems adapted to a plant's existence in dry and arid regions form curious features in the homes of civilized man . METHODS OF INSTRUCTION IN GENERAL GEOLOGY.1 BY H. S. WILLIAMS 1887 ] 615 The Milkweeds .
Página 616
... regions of the unknown . than are found in the other more specialized sciences . This doubtless arises from the fact that as human knowledge has grown and the problems have become more scientifically interpreted , and the ultimate laws ...
... regions of the unknown . than are found in the other more specialized sciences . This doubtless arises from the fact that as human knowledge has grown and the problems have become more scientifically interpreted , and the ultimate laws ...
Página 623
... region , pointing out the precise phenomena in the locality , sequence and results in building a cone and making volcanic deposits . With a clear notion of one such typical volcano , it is a simple matter to classify and point out the ...
... region , pointing out the precise phenomena in the locality , sequence and results in building a cone and making volcanic deposits . With a clear notion of one such typical volcano , it is a simple matter to classify and point out the ...
Página 624
... region or formations examined , asking for detailed answers to the questions , What are the faunas ? What are the differences in the several sections ? What changes are seen in the nature of the deposits on passing upwards ? What are ...
... region or formations examined , asking for detailed answers to the questions , What are the faunas ? What are the differences in the several sections ? What changes are seen in the nature of the deposits on passing upwards ? What are ...
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Amer AMERICAN NATURALIST animals appear Artiodactyla Bering Island bones botany breed called cells character chemical color compounds conclusions Condylarthra contains crystals cusps described dike E. D. Cope Eocene evolution eyes facts fauna feet figures fossils four Gard genera genus geological geologists geology Göhrde groups Heptodon hornblende hornless stags horns hundred Hyracotherium Ichthyosaurus incisors inferior molar infra-spinous insects Island J. B. LIPPINCOTT COMPANY known Lambdotherium larvæ lower Menodus mineral Miocene molars natural North notes observed occur original paper Philadelphia plane plants plates polled cattle pollinia portion premolars present probably Proc Prof Professor Protohippus published recently region represented River rocks sandstone says scapular scapular index schists scientific sea-cow sections seen side skull species specimens Spiders structure student superior molars synonymy Taconic teeth tion varieties Vilmorin XXI.-NO