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 26
... remains only . And these are of the greatest importance , since they furnish us with the means of ascertaining the changes and modifica tions which the Animal Kingdom has undergone in the suc cessive creations , since the first ...
... remains only . And these are of the greatest importance , since they furnish us with the means of ascertaining the changes and modifica tions which the Animal Kingdom has undergone in the suc cessive creations , since the first ...
Pagina 33
... remains of a great number of animals belonging to species . which do not exist at the present day . Many of these remains present forms so extraordinary that it is almost im possible to trace their alliance with any animal now living ...
... remains of a great number of animals belonging to species . which do not exist at the present day . Many of these remains present forms so extraordinary that it is almost im possible to trace their alliance with any animal now living ...
Pagina 75
... remains of the numerous extinct races of animals of past geological eras ; and from these alone are we to determine the struc- ture and character of the ancient fauna . 154. Most of the Radiata have a calcareous test or crusty shell ...
... remains of the numerous extinct races of animals of past geological eras ; and from these alone are we to determine the struc- ture and character of the ancient fauna . 154. Most of the Radiata have a calcareous test or crusty shell ...
Pagina 127
... remains nearly uniform , it follows that it must daily lose as much as it receives ; in other words , the excretions must equal in amount the food and drink taken , with the exception of the small proportion discharged by the alimentary ...
... remains nearly uniform , it follows that it must daily lose as much as it receives ; in other words , the excretions must equal in amount the food and drink taken , with the exception of the small proportion discharged by the alimentary ...
Pagina 133
... remains in the ovary . It is afterwards enclosed in another envelope , the shell membrane , which may remain soft , ( s , ) Fig . 98 . S or be further surrounded by calcareous deposits , the shell 12 OF THE EGG . 133 96 97 97 Form of ...
... remains in the ovary . It is afterwards enclosed in another envelope , the shell membrane , which may remain soft , ( s , ) Fig . 98 . S or be further surrounded by calcareous deposits , the shell 12 OF THE EGG . 133 96 97 97 Form of ...
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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