On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for LifeJ. Murray, 1859 - Всего страниц: 502 "...All the foregoing rules and aids and difficulties in classification are explained, if I do not greatly deceive myself, on the view that the natural system is founded on descent with modification; that the characters which naturalists consider as showing true affinity between any two or more species, are those which have been inherited from a common parent, and, in so far, all true classification is genealogical; that community of descent is the hidden bond which naturalists have been unconsciously seeking, and not some unknown plan of creation, or the enunciation of general propositions, and the mere putting together and separating objects more or less alike. But I must explain my meaning more fully..." This re-print of Charles Darwin's 1859 publication of "On The Origin of Species" has been carefully formatted to improve readability and to ensure that the page numbers match, as closely as possible, the original table of contents and index for quick referencing and scholarly quotation of the author's 'First Edition'. |
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Стр. 8
... believe in this ; but the chief one is the remarkable effect which confine- ment or cultivation has on the functions of the repro- ductive system ; this system appearing to be far more susceptible than any other part of the organisation ...
... believe in this ; but the chief one is the remarkable effect which confine- ment or cultivation has on the functions of the repro- ductive system ; this system appearing to be far more susceptible than any other part of the organisation ...
Стр. 11
... believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats with blue eyes are invariably deaf ; colour and. CHAP . I. 11 UNDER DOMESTICATION .
... believe that long limbs are almost always accompanied by an elongated head . Some instances of correlation are quite whimsical : thus cats with blue eyes are invariably deaf ; colour and. CHAP . I. 11 UNDER DOMESTICATION .
Стр. 14
... believe that the rule has a wider extension , and that when there is no apparent reason why a pecu- liarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first ...
... believe that the rule has a wider extension , and that when there is no apparent reason why a pecu- liarity should appear at any particular age , yet that it does tend to appear in the offspring at the same period at which it first ...
Стр. 17
... believe , as we shall presently see , that all our dogs have descended from any one wild species ; but , in the case of some other domestic races , there is presumptive , or even strong , evidence in favour of this view . It has often ...
... believe , as we shall presently see , that all our dogs have descended from any one wild species ; but , in the case of some other domestic races , there is presumptive , or even strong , evidence in favour of this view . It has often ...
Стр. 18
... believe that these latter have had more than one wild parent . With respect to horses , from reasons which I cannot give here , I am doubtfully inclined to believe , in opposition to several authors , that all the races have descended ...
... believe that these latter have had more than one wild parent . With respect to horses , from reasons which I cannot give here , I am doubtfully inclined to believe , in opposition to several authors , that all the races have descended ...
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aboriginal accumulated adapted affinities allied species America amount ancient appear beak become bees believe birds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic animals domestic breeds domestic races doubt embryo Europe existing exterminated extinct extremely facts favourable fertility flowers formation forms fossil Gärtner genera genus geological geological period Glacial period greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living male mammals manner Marsupials migration modification modified descendants mongrels natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive supposed theory tion variability variation varieties vary whole widely wild