The American Naturalist, Volumen21Essex Institute, 1887 |
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Página 688
... Placenta of the Mouse , Rat , and Field - Mouse [ Illustrated ] Anthropology - Arrow - Release among the Nava- jos . The Great Serpent - Mound . The Ruined Cities of Yucatan . SCIENTIFIC NEWS PAG 76 76 77 77 71 J. B. LIPPINCOTT COMPANY ...
... Placenta of the Mouse , Rat , and Field - Mouse [ Illustrated ] Anthropology - Arrow - Release among the Nava- jos . The Great Serpent - Mound . The Ruined Cities of Yucatan . SCIENTIFIC NEWS PAG 76 76 77 77 71 J. B. LIPPINCOTT COMPANY ...
Página 780
... Placental Types , and on certain Vestigiary Structures in the Placentæ of the Mouse , Rat , and Field - Mouse . The discoidal placenta has been supposed by Balfour to have been derived from an earlier and less specialized diffuse type ...
... Placental Types , and on certain Vestigiary Structures in the Placentæ of the Mouse , Rat , and Field - Mouse . The discoidal placenta has been supposed by Balfour to have been derived from an earlier and less specialized diffuse type ...
Página 781
... placenta , as seen in the Mare and Dugong , show conclusively that we cannot draw a sharp line of demarcation between the diffuse and zonary types of the placenta . It follows , without any doubt whatever , from what has been said in ...
... placenta , as seen in the Mare and Dugong , show conclusively that we cannot draw a sharp line of demarcation between the diffuse and zonary types of the placenta . It follows , without any doubt whatever , from what has been said in ...
Página 782
... placenta which must have been developed in the ancestors of the Rodentia . All of the placental girdle , in the light of this evidence , has been aborted in the Rodentia , except a small discoidal segment nearest to the blood vascular ...
... placenta which must have been developed in the ancestors of the Rodentia . All of the placental girdle , in the light of this evidence , has been aborted in the Rodentia , except a small discoidal segment nearest to the blood vascular ...
Página 783
... placenta of the highest types and the two unequal placental disks of the Old World monkeys are further modifications of a type which must have been primitively zonary or diffuse , as is proved by the placentation of the Lemurida , which ...
... placenta of the highest types and the two unequal placental disks of the Old World monkeys are further modifications of a type which must have been primitively zonary or diffuse , as is proved by the placentation of the Lemurida , which ...
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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