Principles of Zoölogy : Touching the Structure, Development, Distribution, and Natural Arrangement of the Races of Animals, Living and Extinct with Numerous Illustrations: Part I, Comparative Physiology, for the Use of Schools and CollegesGould and Lincoln, 1859 - 250 pagina's |
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Pagina 2
... Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian 66 64 ་ ་ 86 39 66 Upper Silurian 66 Lower Silurian 66. Of Hearing.
... Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian 66 64 ་ ་ 86 39 66 Upper Silurian 66 Lower Silurian 66. Of Hearing.
Pagina 11
... lower Oölitic beds ; many forms commence in the Tertiary ; a great number of types make their appearance only in the Modern age ; while only a few have continued from the Silurian , through every period to the present . Thus , the ...
... lower Oölitic beds ; many forms commence in the Tertiary ; a great number of types make their appearance only in the Modern age ; while only a few have continued from the Silurian , through every period to the present . Thus , the ...
Pagina 12
... lower levels . In the same manner , the southern warm fauna extends northward , along the Andes . FIG . 1. Simple cell , magnified , as seen in the house - leek . 2. Cells when altered by pressure upon each other ; from the pith of ...
... lower levels . In the same manner , the southern warm fauna extends northward , along the Andes . FIG . 1. Simple cell , magnified , as seen in the house - leek . 2. Cells when altered by pressure upon each other ; from the pith of ...
Pagina 16
... Lower Silurian forma- tion ; 2. Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oolitic ; 7. Cretaceous ; 8. Lower Terti- ary or Eocene ; 9. Upper Tertiary , or Miocene , and Pleiocene ; 10. Drift . 155 ...
... Lower Silurian forma- tion ; 2. Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oolitic ; 7. Cretaceous ; 8. Lower Terti- ary or Eocene ; 9. Upper Tertiary , or Miocene , and Pleiocene ; 10. Drift . 155 ...
Pagina 22
... lower form allied to the Polyps by their gen- eral appearance , ( Rhizopods or Foraminifera . ) The class of ACEPHALS Contains three orders : a . Those having shells of two valves , ( bivalves , ) like the clam and oyster ...
... lower form allied to the Polyps by their gen- eral appearance , ( Rhizopods or Foraminifera . ) The class of ACEPHALS Contains three orders : a . Those having shells of two valves , ( bivalves , ) like the clam and oyster ...
Overige edities - Alles bekijken
Veelvoorkomende woorden en zinsdelen
albumen allantois Ammonites Animal Kingdom appear aquatic arteries Articulata Articulates auricles become belong birds blood body bones brain branches called canal carboniferous Carnivora cartilaginous cavity cells Cercaria chyle classes cloth composed contains corresponding crabs crustaceans crystalline lens cuttle-fish digestive distinct Distoma distribution divided Echinoderms eggs embryo enclosed epoch fauna fishes fluid formation fossils frog furnished Gasteropods geological germ germinative germinative vesicle gills head heart Illustrations important Infusoria insects intestine jaws jelly-fishes layer less limbs living lower lungs magnified mals mammals membrane metamorphoses mode mollusks muscles namely natural nerves nervous system oxygen peculiar period plants polyps portion Radiates regions reptiles resemblance respiration respiratory organs Rhizodonts rocks SECTION shell showing Silurian similar skin species star-fishes structure surface teeth temperate tentacles terrestrial animals Tertiary tion tissues trachea tropical types upper vegetative ventricle vertebrated animals vesicle White-fish whole worms yolk young Zoology
Populaire passages
Pagina 189 - Experiments of dredging in very deep water have also taught us that the abyss of the ocean is nearly a desert. Not only are no materials found there for sustenance, but it is doubtful if animals could sustain the pressure of so great a column of water, although many of them are provided with a system of pores, (260,) which enables them to sustain a much greater pressure than terrestrial animals. America, one species takes...