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 215
... rocks * which compose the crust of our globe are of two kinds : 1. The Massive Rocks , called also Plutonic or Igneous Rocks , which lie beneath all the others , or have sometimes been forced up through them , from beneath . They were ...
... rocks * which compose the crust of our globe are of two kinds : 1. The Massive Rocks , called also Plutonic or Igneous Rocks , which lie beneath all the others , or have sometimes been forced up through them , from beneath . They were ...
Pagina 216
... rocks are the only ones which have been found to contain animal and vegetable remains . These are found imbedded in the rock , just as we should find them in the mud now deposited at the bottom of the sea , if laid dry . The strata ...
... rocks are the only ones which have been found to contain animal and vegetable remains . These are found imbedded in the rock , just as we should find them in the mud now deposited at the bottom of the sea , if laid dry . The strata ...
Pagina 217
... rock , whether it be lime- stone , sand , or clay , is termed a geological Formation . Thus , the coal beds , with ... rocks we distinguish ten prin- cipal Formations , each of which indicates an entirely new era in the earth's history ...
... rock , whether it be lime- stone , sand , or clay , is termed a geological Formation . Thus , the coal beds , with ... rocks we distinguish ten prin- cipal Formations , each of which indicates an entirely new era in the earth's history ...
Pagina 219
... rocks were formed by the subsidence of sediment in water , no rocks would be formed except in regions covered by water ; they would be thickest at the parts where most sediment was deposited , and gradually thin out towards their ...
... rocks were formed by the subsidence of sediment in water , no rocks would be formed except in regions covered by water ; they would be thickest at the parts where most sediment was deposited , and gradually thin out towards their ...
Pagina 220
... rock , it is easy to determine whether the animals to which these remains belonged lived in the water , or on land ... rocks are entirely formed of animal re- mains , particularly of corals and shells . So , also , coal is composed of ...
... rock , it is easy to determine whether the animals to which these remains belonged lived in the water , or on land ... rocks are entirely formed of animal re- mains , particularly of corals and shells . So , also , coal is composed of ...
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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...