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 |
Vanuit het boek
Resultaten 1-5 van 33
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 ...
... 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 ...
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 inferior rank , such as most of the polypi , or else they are animals which live under ...
... 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 inferior rank , such as most of the polypi , or else they are animals which live under ...
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 ...
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...