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 14
... Separation of the cell - layer into three layers ; 8 , serous or nervou layer ; m , mucous or vegetative layer ; v , vascular or blood layer . 104. Embryo of a crab , showing its incipient rings . 105. Embryo of a vertebrate , showing ...
... Separation of the cell - layer into three layers ; 8 , serous or nervou layer ; m , mucous or vegetative layer ; v , vascular or blood layer . 104. Embryo of a crab , showing its incipient rings . 105. Embryo of a vertebrate , showing ...
Pagina 15
... separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and ... separation into segments ; d , a segment be . come free ; k , form of the adult . 143. Portion of a plant - like polyp ...
... separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and ... separation into segments ; d , a segment be . come free ; k , form of the adult . 143. Portion of a plant - like polyp ...
Pagina 57
... separated from the auditory passage by a membranous partition , the tympanum or drum , ( c ; ) though it still communicates with the open air by means ɔf a narrow canal , called the Eustachian tube , ( i , ) which opens at the back part ...
... separated from the auditory passage by a membranous partition , the tympanum or drum , ( c ; ) though it still communicates with the open air by means ɔf a narrow canal , called the Eustachian tube , ( i , ) which opens at the back part ...
Pagina 60
... usually two in number . Some fishes have four . They are similar openings , separated by a par tition upon the middle line of the body . In man and the mammals , the outer walls of the nose are composed 60 SPECIAL SENSES . Of Smell.
... usually two in number . Some fishes have four . They are similar openings , separated by a par tition upon the middle line of the body . In man and the mammals , the outer walls of the nose are composed 60 SPECIAL SENSES . Of Smell.
Pagina 83
... separated ; to this end , we find it fully developed in all animals . which raise the limbs from the sides , as the birds and the bats . On the other hand , it is rudimentary , or entirely want- ing in animals which move them back ...
... separated ; to this end , we find it fully developed in all animals . which raise the limbs from the sides , as the birds and the bats . On the other hand , it is rudimentary , or entirely want- ing in animals which move them back ...
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Veelvoorkomende woorden en zinsdelen
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