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
... indicating the number of formations of which they are composed . The whole disk is divided by radiating lines into four segments , to include the four great departments of the Animal Kingdom ; the Vertebrates , with Man at their head ...
... indicating the number of formations of which they are composed . The whole disk is divided by radiating lines into four segments , to include the four great departments of the Animal Kingdom ; the Vertebrates , with Man at their head ...
Pagina 30
... indicates the simi- larity of purposes or functions performed by organs of dif- ferent structure . 17. Thus , there is an analogy between the wing of a bird and that of a butterfly , since both of them serve for flight . But there is no ...
... indicates the simi- larity of purposes or functions performed by organs of dif- ferent structure . 17. Thus , there is an analogy between the wing of a bird and that of a butterfly , since both of them serve for flight . But there is no ...
Pagina 34
... indicating to us , in Creation , the execution of a plan fully matured in the beginning , and undeviatingly pursued ; the work of a God infinitely wise , regulating Nature according to imm . table laws , which He has himself imposed on ...
... indicating to us , in Creation , the execution of a plan fully matured in the beginning , and undeviatingly pursued ; the work of a God infinitely wise , regulating Nature according to imm . table laws , which He has himself imposed on ...
Pagina 65
... indicated by dotted lines , in Fig . 22 . 124. The mechanism of the voice is as follows : the air , on its way to the lungs , passes the vocal cords . So long as these are in repose , no sound is produced ; but the moment they are made ...
... indicated by dotted lines , in Fig . 22 . 124. The mechanism of the voice is as follows : the air , on its way to the lungs , passes the vocal cords . So long as these are in repose , no sound is produced ; but the moment they are made ...
Pagina 69
... indicate very complicated mental operations , and probably would require numerous preliminary experiments . 137. The instinctive actions of animals relate either to the procuring of food , or to the rearing of INTELLIGENCE AND INSTINCT .
... indicate very complicated mental operations , and probably would require numerous preliminary experiments . 137. The instinctive actions of animals relate either to the procuring of food , or to the rearing of INTELLIGENCE AND INSTINCT .
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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...