The Doctrine of Descent and DarwinismD. Appleton and Company, 1875 - Всего страниц: 334 |
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Стр. 12
... seems to us , arbitrarily breaking the chain of ratiocination . We will now return to the preliminary question already indicated , as to the limits of the investigation of nature . It is the more important , as incompetent judges are ...
... seems to us , arbitrarily breaking the chain of ratiocination . We will now return to the preliminary question already indicated , as to the limits of the investigation of nature . It is the more important , as incompetent judges are ...
Стр. 17
... seems to indicate that all matter , in the most different phenomena in the material world , is based on a single species of atom . Every manual of physics or physiology will show that , in order to understand and calculate the ...
... seems to indicate that all matter , in the most different phenomena in the material world , is based on a single species of atom . Every manual of physics or physiology will show that , in order to understand and calculate the ...
Стр. 29
... seem to us higher than that of the polype in proportion as it is more complex . The superior com- plexity and variety of the parts is anatomically evident , and similarly the higher phase of the life . The superior energy of the ...
... seem to us higher than that of the polype in proportion as it is more complex . The superior com- plexity and variety of the parts is anatomically evident , and similarly the higher phase of the life . The superior energy of the ...
Стр. 36
... seem an inalienable mark of the vertebrata , yet the lancelet has no such head , but merely an anterior end . Nevertheless , it may be objected , it has a vertebral column ; yet this , the special badge of nobility of the vertebrate ...
... seem an inalienable mark of the vertebrata , yet the lancelet has no such head , but merely an anterior end . Nevertheless , it may be objected , it has a vertebral column ; yet this , the special badge of nobility of the vertebrate ...
Стр. 39
... seems , consists a stubborn opposition . Yet , if the distinction between animate and inanimate nature has been recognized as one not entirely absolute ; especially if the possibility , nay even the necessity , has been perceived of the ...
... seems , consists a stubborn opposition . Yet , if the distinction between animate and inanimate nature has been recognized as one not entirely absolute ; especially if the possibility , nay even the necessity , has been perceived of the ...
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according adaptation already Ammonites Amphibians animal world apes appearance Ascidian become birds brain carboniferous causes Cetacea character characteristics comparative anatomy complete connection continent Darwin dentition derivation diverge doctrine of Descent Echinoderms embryonic Eocene exhibit existence external facts families fauna fish formation fossil Ganoids Gastrula genera genus geological Goethe grade gradually groups Haeckel heredity higher horse human hypothesis idea individual infer Insectivora intermediate forms islands lancelet language larva larvæ likewise linguistic lower mammals Marsupials Medusa ment merely metamorphosis modifications morphological mutability natural selection observation Oolite organisms origin peculiar pedigree perfect period phase phenomena placenta plants polypes possess present primordial progenitors races relations remains reproduction reptiles resemblance Rütimeyer says scarcely scientific separate sexual Silurian skull species strata structure systematic terrestrial animals Tertiary theory of selection tion transformation transition true Ungulata Ungulates varieties vertebral column Vertebrata vertebrate animals whole
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Стр. 162 - 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.18 Darwin always knew that his views would be controversial. A few days before The Origin of Species appeared, Darwin wrote, in a letter to Wallace, 'God knows what...
Стр. 160 - Na'geli on plants, and the remarks by various authors with respect to animals, more especially those recently made by Professor Broca, that in the earlier editions of my Origin of Species I perhaps attributed too much to the action of natural selection or the survival of the fittest.