On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for Life |
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Page ii
... laws . ” WHEWELL : Bridgewater Treatise . " The only distinct meaning of the word ' natural ' is stated , fixed , of settled ; since what is natural as much requires and presupposes an intelligent agent to render it so , i.e. to effect ...
... laws . ” WHEWELL : Bridgewater Treatise . " The only distinct meaning of the word ' natural ' is stated , fixed , of settled ; since what is natural as much requires and presupposes an intelligent agent to render it so , i.e. to effect ...
Page vi
... LAWS OF VARIATION . Effects of external conditions - Use and disuse , combined with natural selection ; organs of flight and of vision - Acclimatisa- tion - Correlation of growth - Compensation and economy of growth - False correlations ...
... LAWS OF VARIATION . Effects of external conditions - Use and disuse , combined with natural selection ; organs of flight and of vision - Acclimatisa- tion - Correlation of growth - Compensation and economy of growth - False correlations ...
Page vii
... law of Unity of Type and of the Conditions of Existence embraced by the theory of Natural Selection .. Page 189-226 ... Laws governing the sterility of hybrids - Sterility not a special endowment , but incidental on other differences ...
... law of Unity of Type and of the Conditions of Existence embraced by the theory of Natural Selection .. Page 189-226 ... Laws governing the sterility of hybrids - Sterility not a special endowment , but incidental on other differences ...
Page ix
... laws of , explained by variations not supervening at an early age , and being inherited at a corresponding age – RUDIMENTARY ORGANS ; their origin explained — Summary 443-491 - - favour -- CHAPTER XIV . RECAPITULATION AND CONCLUSION ...
... laws of , explained by variations not supervening at an early age , and being inherited at a corresponding age – RUDIMENTARY ORGANS ; their origin explained — Summary 443-491 - - favour -- CHAPTER XIV . RECAPITULATION AND CONCLUSION ...
Page xiii
... law , and not of miraculous interposition . Lamarck seems to have been chiefly led to his conclusion on the gradual change of species , by the difficulty of distinguishing species and varieties , by the almost perfect gradation of forms ...
... law , and not of miraculous interposition . Lamarck seems to have been chiefly led to his conclusion on the gradual change of species , by the difficulty of distinguishing species and varieties , by the almost perfect gradation of forms ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living male mammals manner Marsupials migration modification modified descendants mongrels natural selection naturalists nearly nest occasionally offspring organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor racter ranked reciprocal crosses remarked resemble rudimentary organs seeds Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely