Principles of Zoölogy: Touching the Structure, Development, Distribution, and Natural Arrangement of the Races of Animals, Living and Extinct ... Pt. I. Comparative Physiology. For the Use of Schools and Colleges, Deel 1Gould and Lincoln, 1870 - 250 pagina's |
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Pagina 2
... Upper Tertiary Formation Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian Upper Silurian Lower Silurian 95 42 19 "
... Upper Tertiary Formation Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian Upper Silurian Lower Silurian 95 42 19 "
Pagina 11
... upper compartment , the Articulates at the left , the Mollusks at the right , and the Radiates below , as being the lowest in rank . Each of these compartments is again subdivided to include the different classes belonging to it , which ...
... upper compartment , the Articulates at the left , the Mollusks at the right , and the Radiates below , as being the lowest in rank . Each of these compartments is again subdivided to include the different classes belonging to it , which ...
Pagina 14
... embryo ; xx , membrane rising to form the amnios ; a , allantois ; y , yolk . 126. The same more fully developed . The allantois ( a ) is further de FIG . veloped , and bent upwards . The upper 14 EXPLANATION OF THE FIGURES .
... embryo ; xx , membrane rising to form the amnios ; a , allantois ; y , yolk . 126. The same more fully developed . The allantois ( a ) is further de FIG . veloped , and bent upwards . The upper 14 EXPLANATION OF THE FIGURES .
Pagina 15
... upper part of the yolk ( dd ) is nearly separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and connected by threads with the blood - layer of the body . 127. Section of the egg of a ...
... upper part of the yolk ( dd ) is nearly separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and connected by threads with the blood - layer of the body . 127. Section of the egg of a ...
Pagina 16
... Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oölitic ; 7. Cretaceous ; 8. Lower Terti- ary or Eocene ; 9. Upper Tertiary , or Miocene , and Pleiocene ; 10. Drift . 155. Fossils of the Paleozoic age ...
... Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oölitic ; 7. Cretaceous ; 8. Lower Terti- ary or Eocene ; 9. Upper Tertiary , or Miocene , and Pleiocene ; 10. Drift . 155. Fossils of the Paleozoic age ...
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allantois Ammonites Animal Kingdom appear aquatic arteries Articulata Articulates auricles become belong birds blood body bones brain branches called canal carboniferous cartilaginous cavity cells Cercaria chyle classes cloth composed containing crabs Cretaceous crustaceans crystalline lens cuttle-fish digestive distinct Distoma distribution Echinoderms eggs embryo epoch fauna fishes fluid formation fossils frog furnished Gasteropods genera germ germinative vesicle gills groups head heart important Infusoria insects intestine jaws jelly-fishes layer legs less limbs living lower lungs magnified mals mammals membrane metamorphoses mode mollusks monkey motion muscles namely natural nerves oxygen Paleozoic peculiar period plants Polyps portion Radiata regions reproduction reptiles resemblance respiration respiratory organs Rhizodonts rocks sea-urchins SECTION shell showing Silurian similar skin species star-fishes stomach structure surface teeth temperate tentacles terrestrial animals Tertiary tion tissues trachea tropical tubes types vegetable ventricle Vertebrates vesicle vessels White-fish whole worms yolk young Zoology