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
... III . Tertiary Age . II . Secondary Age . I Paleozoic Age . Metamorphic Rocks .. Upper Tertiary Formation Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian 66 64 ་ ་ 86 39 66 Upper Silurian 66 Lower Silurian 66. Of Hearing.
... III . Tertiary Age . II . Secondary Age . I Paleozoic Age . Metamorphic Rocks .. Upper Tertiary Formation Lower Tertiary Cretaceous Oolitic Trias Carboniferous Devonian 66 64 ་ ་ 86 39 66 Upper Silurian 66 Lower Silurian 66. Of Hearing.
Pagina 11
... rocks . The Belemnites appear in 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 ...
... rocks . The Belemnites appear in 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 ...
Pagina 16
... rocks composing it ; E , plutonic or massive rocks ; M , metamor- phic rocks ; T , trap rocks ; L , lava . 1. Lower Silurian forma- tion ; 2. Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oolitic ; 7 ...
... rocks composing it ; E , plutonic or massive rocks ; M , metamor- phic rocks ; T , trap rocks ; L , lava . 1. Lower Silurian forma- tion ; 2. Upper Silurian ; 3. Devonian ; 4. Carboniferous ; 5 . Trias , or Saliferous ; 6. Oolitic ; 7 ...
Pagina 35
... rocks , ) and living or organ- ized bodies , ( vegetables and animals . ) These two groups have nothing in common ... rock or the crystal , once formed , never changes from internal causes ; its constituent parts or mole- cules ...
... rocks , ) and living or organ- ized bodies , ( vegetables and animals . ) These two groups have nothing in common ... rock or the crystal , once formed , never changes from internal causes ; its constituent parts or mole- cules ...
Pagina 36
... rock would never change . The limestone and granite of our mountains remain just as they were formed in ancient geological epochs ; while numberless generations of plants and ani- mals have lived and perished upon their surface ...
... rock would never change . The limestone and granite of our mountains remain just as they were formed in ancient geological epochs ; while numberless generations of plants and ani- mals have lived and perished upon their surface ...
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...