On the Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life1859 |
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Page 1
... occurred to me , in 1837 , that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it . After five years ' work I allowed myself ...
... occurred to me , in 1837 , that something might perhaps be made out on this question by patiently accumulating and reflecting on all sorts of facts which could possibly have any bearing on it . After five years ' work I allowed myself ...
Page 15
... occur ; but natural selection , as will hereafter be explained , will determine how far the new characters thus arising shall be preserved . When we look to the hereditary varieties or races of our domestic animals and plants , and ...
... occur ; but natural selection , as will hereafter be explained , will determine how far the new characters thus arising shall be preserved . When we look to the hereditary varieties or races of our domestic animals and plants , and ...
Page 25
... occur together in any other species of the whole family . Now , in every one of the domestic breeds , taking thoroughly well - bred birds , all the above marks , even to the white edging of the outer tail- feathers , sometimes concur ...
... occur together in any other species of the whole family . Now , in every one of the domestic breeds , taking thoroughly well - bred birds , all the above marks , even to the white edging of the outer tail- feathers , sometimes concur ...
Page 47
... occur in deciding whether or not to rank one form as a variety of another , even when they are closely con- nected by intermediate links ; nor will the commonly- assumed hybrid nature of the intermediate links always remove the ...
... occur in deciding whether or not to rank one form as a variety of another , even when they are closely con- nected by intermediate links ; nor will the commonly- assumed hybrid nature of the intermediate links always remove the ...
Page 55
... occur in a group having many species , than in one having few . To test the truth of this anticipation I have arranged the plants of twelve countries , and the coleopterous insects of two districts , into two nearly equal masses , the ...
... occur in a group having many species , than in one having few . To test the truth of this anticipation I have arranged the plants of twelve countries , and the coleopterous insects of two districts , into two nearly equal masses , the ...
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Common terms and phrases
adapted affinities allied species America amount analogous ancient animals become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble Second Edition seeds sexual selection Silurian slight South America sterility structure struggle successive suppose theory Third Edition tion variability variation varieties vary Vols whole widely Woodcuts