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 11
... appear to com- mence in the earliest strata , and to disappear with the carboniferous for- mation . The Ammonites also appeared in the Silurian formation , and did not become extinct before the deposition of the Cretaceous rocks . The ...
... appear to com- mence in the earliest strata , and to disappear with the carboniferous for- mation . The Ammonites also appeared in the Silurian formation , and did not become extinct before the deposition of the Cretaceous rocks . The ...
Pagina 37
... appear , which has not this peculiar structure . It ex- ists in the bones of animals , as well as in their flesh and fat ; in the wood , however solid , as well as in the bark and flowers of plants . It is to this general structure that ...
... appear , which has not this peculiar structure . It ex- ists in the bones of animals , as well as in their flesh and fat ; in the wood , however solid , as well as in the bark and flowers of plants . It is to this general structure that ...
Pagina 39
... appear- ance . It contains , besides , minute , rounded , or star - like points , improperly called bone- corpuscles , which are found to be cavities or canals , sometimes radiated and branched , as is seen in figure 5 , representing a ...
... appear- ance . It contains , besides , minute , rounded , or star - like points , improperly called bone- corpuscles , which are found to be cavities or canals , sometimes radiated and branched , as is seen in figure 5 , representing a ...
Pagina 45
... appear hereafter . They are - 1 . The medulla oblongata ; 2. Cerebellum ; 3. Optic lobes ; 4. Cerebral hemispheres ; 5. Olfactory lobes ; 6. the pituitary body ; 7 . the pineal body . ( See figures 9 and 21. ) The spinal marrow is made ...
... appear hereafter . They are - 1 . The medulla oblongata ; 2. Cerebellum ; 3. Optic lobes ; 4. Cerebral hemispheres ; 5. Olfactory lobes ; 6. the pituitary body ; 7 . the pineal body . ( See figures 9 and 21. ) The spinal marrow is made ...
Pagina 53
... appear as small black spots on the head ; such as are seen on the head of the Leech , the Planaria and the Nereis . In these latter animals there are four spots . According to Müller , they are small bodies , rounded behind , and ...
... appear as small black spots on the head ; such as are seen on the head of the Leech , the Planaria and the Nereis . In these latter animals there are four spots . According to Müller , they are small bodies , rounded behind , and ...
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...