摘要：Chapter 14 - Recapitulation and ConclusionAs this whole volume is one long argument, it may be convenient to the reader to have the leading facts and inferences briefly recapitulated。

摘要：Chapter 13 - Mutual Affinities of Organic Beings: Morphology: Embryology: Rudimentary OrgansFrom the first dawn of life, all organic beings are found to resemble each other in descending degrees, s...

摘要：Chapter 12 - Geographical Distribution continuedAs lakes and river-systems are separated from each other by barriers of land, it might have been thought that fresh-water productions would not have ...

摘要：Chapter 11 - Geographical DistributionIn considering the distribution of organic beings over the face of the globe, the first great fact which strikes us is, that neither the similarity nor the dis...

摘要：Chapter 10 - On The Geological Succession of Organic BeingsLet us now see whether the several facts and rules relating to the geological succession of organic beings, better accord with the common ...

摘要：Chapter 9 - On the Imperfection of the Geological RecordIN the sixth chapter I enumerated the chief objections which might be justly urged against the views maintained in this volume。

摘要：Chapter 8 - HybridismTHE view generally entertained by naturalists is that species, when intercrossed, have been specially endowed with the quality of sterility, in order to prevent the confusion o...

摘要：Chapter 7 - InstinctTHE subject of instinct might have been worked into the previous chapters。

摘要：Chapter 6 - Difficulties on TheoryLONG before having arrived at this part of my work, a crowd of difficulties will have occurred to the reader。

摘要：Chapter 5 - Laws of VariationI HAVE hitherto sometimes spoken as if the variations so common and multiform in organic beings under domestication, and in a lesser degree in those in a state of natur...

摘要：Chapter 4 - Natural SelectionHow will the struggle for existence, discussed too briefly in the last chapter, act in regard to variation。 This preservation of favourable variations and the rejectio...

摘要：Chapter 3 - Struggle for ExistenceBEF0RE entering on the subject of this chapter, I must make a few preliminary remarks, to show how the struggle for existence bears on Natural Selection。 It has b...

摘要：but they graduate into varieties。 and hardly two naturalists can agree which forms to rank as species and which as varieties。 We must, however, in many cases, decide by a majority of naturalists,...

摘要：Chapter 1 - Variation Under DomesticationWHEN we look to the individuals of the same variety or sub-variety of our older cultivated plants and animals, one of the first points which strikes us, is,...

摘要：These facts seemed to me to throw some light on the origin of species mdash。 that mystery of mysteries, as it has been called by one of our greatest philosophers。 On my return home, it occurred t...

摘要：Full Title:On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life。,Fellow of the Royal, Geological, Linnæ。 Author of Journal o...