On the Origin of Species by Means of Natural Selection, Or, The Preservation of Favoured Races in the Struggle for LifeJohn Murray, 1866 - Всего страниц: 593 In bringing together for the first time in one volume the two principal works of Charles Darwin, the editors of the Modern Library are in a sense fulfilling a part of the author's intention. The Descent of Man is, in truth, a sequel and amplification of The Origin of Species and belongs with it as corroborative scientific evidence of the theories of evolution set forth in the earlier work. Darwin's statement in The Origin of Species that "light would be thrown on the origin of man and his history" is justified by the wealth of data contained in The Descent of Man. To these facts are added in the section Selection in Relation to Sex a mass of observations in support of the hypothesis that sexual selection exercises a major influence in the evolution of species. Of the history of these books and their epoch-making consequences upon the scientific and religious thought of our time it would be superfluous to comment. They remain in the 20th century, in spite of a few minor scientific revisions, one of the greatest achievements in humanity's quest for enlightenment. |
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Стр. xvii
... supposed " impulses " account in a scientific sense for the numerous and beautiful co - adaptations which we see throughout nature ; I cannot see that we thus gain any insight how , for in- stance , a woodpecker has become adapted to ...
... supposed " impulses " account in a scientific sense for the numerous and beautiful co - adaptations which we see throughout nature ; I cannot see that we thus gain any insight how , for in- stance , a woodpecker has become adapted to ...
Стр. xx
... supposed to have been caused by some miasma , have arisen and spread over the world , so at certain periods the germs of existing species may have been chemically affected by circumambient mole- cules of a particular nature , and thus ...
... supposed to have been caused by some miasma , have arisen and spread over the world , so at certain periods the germs of existing species may have been chemically affected by circumambient mole- cules of a particular nature , and thus ...
Стр. 10
... supposed , with the act of generation . 66 Seedlings from the same fruit , and the young of the same litter , sometimes differ considerably from each other , though both the young and the parents , as Müller has remarked , have ...
... supposed , with the act of generation . 66 Seedlings from the same fruit , and the young of the same litter , sometimes differ considerably from each other , though both the young and the parents , as Müller has remarked , have ...
Стр. 18
... supposed . The lake - inhabitants of Switzerland cultivated several kinds of wheat and barley , the pea , the poppy for oil , and flax ; and they possessed several domesticated animals ; they had also commerce with other nations . All ...
... supposed . The lake - inhabitants of Switzerland cultivated several kinds of wheat and barley , the pea , the poppy for oil , and flax ; and they possessed several domesticated animals ; they had also commerce with other nations . All ...
Стр. 24
... supposed aboriginal stocks must all have been rock - pigeons , that is , not breeding or willingly perching on trees . But besides C. livia , with its geographical sub - species , only two or three other species of rock - pigeons are ...
... supposed aboriginal stocks must all have been rock - pigeons , that is , not breeding or willingly perching on trees . But besides C. livia , with its geographical sub - species , only two or three other species of rock - pigeons are ...
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The Origin of Species by Means of Natural Selection: Or, the ..., Том 1 Charles Darwin Недоступно для просмотра - 2018 |
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adapted affinities allied species America analogous ancient appear archipelago become bees believe birds breeds cause cells chapter characters climate closely allied colour common continued crossed crustaceans degree difficulty distinct species divergence doubt eggs embryo existing exterminated extinct extremely facts favourable Fcap females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation parent perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America stamens sterility structure struggle successive supposed tion variability variations varieties vary Vols whole widely Woodcuts
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Стр. 229 - If it could be proved that any part of the structure of any one species had been formed for the exclusive good of another species, it would annihilate my theory, for such could not have been produced through natural selection.
Стр. xv - ... species had not been independently created, but had descended, like varieties, from other species. Nevertheless, such a conclusion, even if well founded, would be unsatisfactory, until it could be shown how the innumerable species, inhabiting this world have been modified, so as to acquire that perfection of structure and coadaptation which justly excites our admiration.
Стр. 81 - Several writers have misapprehended or objected to the term Natural Selection. Some have even imagined that natural selection induces variability, whereas it implies only the preservation of such variations as arise and are beneficial to the being under its conditions of life.
Стр. 208 - If it could be demonstrated that any complex organ existed, which could not possibly have been formed by numerous, successive, slight modifications, my theory would absolutely break down.
Стр. 144 - The limbs divided into great branches, and these into lesser and lesser branches, were themselves once, when the tree was...
Стр. 64 - Hence, as more individuals are produced than can possibly survive, there must in every case be a struggle for existence, either one individual with another of the same species, or with the individuals of ^distinct species, or with the physical conditions of life. It is the doctrine of Malthus applied with manifold force to the whole animal and vegetable kingdoms; for in this case there can be no artificial increase of food, and no prudential restraint from marriage.
Стр. 595 - History of Rome. From the Earliest Times to the Establishment of the Empire. With the History of Literature and Art.
Стр. 73 - Battle within battle must be continually recurring with varying success; and yet in the...
Стр. 412 - Every species has come into existence coincident both in space and time with a pre-existing closely allied species.
Стр. 84 - ... useful to any being. She can act on every internal organ, on every shade of constitutional difference, on the whole machinery of life. Man selects only for his own...