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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... Variability - Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic ...
... Variability - Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic ...
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... Variability - Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic ...
... Variability - Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic ...
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... variability of the oak- genus . The fertilisation of clover by bees added to and cor- rected . Additional objections to the theory of natural selection considered . Mr. Walsh on equable variability . A striking instance of a striped ...
... variability of the oak- genus . The fertilisation of clover by bees added to and cor- rected . Additional objections to the theory of natural selection considered . Mr. Walsh on equable variability . A striking instance of a striped ...
Стр. 4
... variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues of facts . We shall , however , be enabled to ...
... variability of species in a state of nature ; but I shall , unfortunately , be compelled to treat this subject far too briefly , as it can be treated properly only by giving long catalogues of facts . We shall , however , be enabled to ...
Стр. 7
... Variability . WHEN we look to the individuals of the same variety or sub - variety of our older cultivated plants and ani- mals , one of the first points which strikes us , is , that they generally differ more from each other than do ...
... Variability . WHEN we look to the individuals of the same variety or sub - variety of our older cultivated plants and ani- mals , one of the first points which strikes us , is , that they generally differ more from each other than do ...
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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...