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 15
... nearly separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and connected by threads with the blood - layer of the body . 127. Section of the egg of a mammal ; v , the thick vitelline ...
... nearly separated from the yolk sphere , and is to become the in testine . The heart ( h ) is already distinct , and connected by threads with the blood - layer of the body . 127. Section of the egg of a mammal ; v , the thick vitelline ...
Pagina 30
... nearly allied to the monkey than to the butterfly , though they both have in common the faculty of flight . Affinities , and not analogies , therefore . must guide us in the arrangement of animals . 18. Our investigations should not be ...
... nearly allied to the monkey than to the butterfly , though they both have in common the faculty of flight . Affinities , and not analogies , therefore . must guide us in the arrangement of animals . 18. Our investigations should not be ...
Pagina 55
... nearly on a level with the head , can see to only a very short distance before them . 90. If there be animals destitute of eyes , they are either of a very inferior rank , such as most of the polypi , or else they are animals which live ...
... nearly on a level with the head , can see to only a very short distance before them . 90. If there be animals destitute of eyes , they are either of a very inferior rank , such as most of the polypi , or else they are animals which live ...
Pagina 57
... nearly immovable . Therefore , persons , whose hearing is deficient , employ an artificial trumpet , by which the vibrations from a much more extended surface may be collected . The external ear is peculiar to mammals , and is wanting ...
... nearly immovable . Therefore , persons , whose hearing is deficient , employ an artificial trumpet , by which the vibrations from a much more extended surface may be collected . The external ear is peculiar to mammals , and is wanting ...
Pagina 75
... nearly all that 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 ...
... nearly all that 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 ...
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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