Life on the Earth: Its Origin and Succession |
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Page 8
... fishes by Cephalo- poda ; but the researches of geology seem to shew that from the earliest periods , carnivora and herbivora , plants and animals , have been combined into the same general relations of mutual dependence as at present ...
... fishes by Cephalo- poda ; but the researches of geology seem to shew that from the earliest periods , carnivora and herbivora , plants and animals , have been combined into the same general relations of mutual dependence as at present ...
Page 10
... fish , where the different re- fractive power of the fluid in which they live is accompanied by modifications , not alike in each , but yet alike in the manifestation of intentional adaptation . Consider in the same point of view the ...
... fish , where the different re- fractive power of the fluid in which they live is accompanied by modifications , not alike in each , but yet alike in the manifestation of intentional adaptation . Consider in the same point of view the ...
Page 30
... fishes , to which in general form suited for easy motion in water the Cetaceans also correspond . So in early geological times we find Ichthyosaurus assuming that sort of conformity to fish - structure and form , which belongs to what ...
... fishes , to which in general form suited for easy motion in water the Cetaceans also correspond . So in early geological times we find Ichthyosaurus assuming that sort of conformity to fish - structure and form , which belongs to what ...
Page 33
... fishes has been often celebrated in this respect ; and we may add the thick oily integument of the Cetacea which at once balances their heavy bones , maintains the heat of their bodies in the polar oceans , and gives the boat - like ...
... fishes has been often celebrated in this respect ; and we may add the thick oily integument of the Cetacea which at once balances their heavy bones , maintains the heat of their bodies in the polar oceans , and gives the boat - like ...
Page 34
... fishes , the Triton and the young Frog , all work the expanded tail after the manner which men use in sculling a boat ; while the beautiful boat - beetle ( Notonecta ) floating on his back rows himself with long jointed , flattened oars ...
... fishes , the Triton and the young Frog , all work the expanded tail after the manner which men use in sculling a boat ; while the beautiful boat - beetle ( Notonecta ) floating on his back rows himself with long jointed , flattened oars ...
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Common terms and phrases
affinity ages Ammonites Amorphozoa ancient Annelida appear atmosphere beds Brachiopoda British BROOKE FOSS WESTCOTT Carbon Carboniferous Cenozoic Cenozoic Strata Cephalopoda Cetacea Chalk classes Clay climate cloth creation Cretaceous Crocodilia Crown 8vo Crustacea deposits Dimyaria distribution earlier earliest earth Echinodermata effect English epoch equal examples existing Fcap Fishes forms fossil freshwater Gasteropoda genera genus geological gilt leaves globe Goniatites groups heat History hypothesis Insects land Lias limestone limited Lingula living Llandeilo Mammalia marine mean temperature Mesozoic Mesozoic Period modern Oceans Mollusca Monomyaria naturalists nature number of species occur Oolitic organic origin Paleozoic Paleozoic Strata perhaps phenomena plants and animals Polyzoa prevalent Professor races recent regard remarkable Reptiles rivers rocks Royal 16mo Second Edition sediments Sermons shells shew Silurian Stonesfield Strata structure succession suppose surface Teleosaurus thickness tion traced University of Cambridge Upper variations vegetable whole zone Zoophyta وو
Popular passages
Page 202 - As all the living forms of life are the lineal descendants of those which lived long before the Cambrian epoch, we may feel certain that the ordinary succession by generation has never once been broken, and that no cataclysm has desolated the whole world.
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Page 203 - There is grandeur in this view of life, with its several powers, having been originally breathed by the Creator into a few forms or into one; and that, whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been, and are being evolved.
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Page 9 - Characteristics of the Gospel Miracles. Sermons preached before the University of Cambridge. With Notes. Crown 8vo. 4s. 6d. Introduction to the Study of the Four Gospels. Third Edition. Crown 8vo.
Page 202 - Therefore I should infer from analogy that probably all the organic beings which have ever lived on this earth, have descended from some one primordial form, into which life was first breathed.
Page 201 - I formerly entertained, namely, that each species has been independently created, is erroneous. I am fully convinced that species are not immutable; but that those belonging to what are called the same genera are lineal descendants of some other and generally extinct species, in the same manner as the acknowledged varieties of any one species are the descendants of that species. Furthermore, I am convinced that Natural Selection has been the main, but not exclusive, means of modification.
Page 201 - I cannot doubt that the theory of descent with modification embraces all the members of the same great class or kingdom. I believe that animals are descended from at most only four or five progenitors, and plants from an equal or lesser number.
Page 203 - It is interesting to contemplate an entangled bank, clothed with many plants of many kinds, with birds singing on the bushes, with various insects flitting about, and with worms crawling through the damp earth...
Page 186 - The intermixture of distinct species is guarded against by the aversion of the individuals composing them to sexual union, or by the sterility of the mule offspring. It does not appear that true hybrid races have ever been perpetuated for several generations, even by the assistance of man; for the cases usually cited relate to the crossing of mules with individuals of pure species, and not to the intermixture of hybrid with hybrid.