On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeThis is the 'second edition' of Darwin's Origin of Species. |
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Page 10
... produced very little direct effect , though apparently more in the case of plants . Under this point of view , Mr ... produce similar changes of structure . Nevertheless some slight amount of 10 CHAP . I. VARIATION.
... produced very little direct effect , though apparently more in the case of plants . Under this point of view , Mr ... produce similar changes of structure . Nevertheless some slight amount of 10 CHAP . I. VARIATION.
Page 17
... produced under domestication ; I believe that some small part of the difference is due to their being descended from distinct species . In the case of some other domesticated species , there is presumptive , or even strong evidence ...
... produced under domestication ; I believe that some small part of the difference is due to their being descended from distinct species . In the case of some other domesticated species , there is presumptive , or even strong evidence ...
Page 19
... so unlike all wild Canidæ -ever existed freely in a state of nature ? It has often been loosely said that all our races of dogs have been produced by the crossing of a few aboriginal species CHAP . I. 19 UNDER DOMESTICATION .
... so unlike all wild Canidæ -ever existed freely in a state of nature ? It has often been loosely said that all our races of dogs have been produced by the crossing of a few aboriginal species CHAP . I. 19 UNDER DOMESTICATION .
Page 20
... produced by the crossing of a few aboriginal species ; but by crossing we can only get forms in some degree intermediate between their parents ; and if we account for our several domestic races by this process , we must admit the former ...
... produced by the crossing of a few aboriginal species ; but by crossing we can only get forms in some degree intermediate between their parents ; and if we account for our several domestic races by this process , we must admit the former ...
Page 23
... produced by crossing two breeds unless one of the parent - stocks possessed the characteristic enormous crop ? The supposed aboriginal stocks must all have been rock - pigeons , that is , not breeding or willingly perching on trees ...
... produced by crossing two breeds unless one of the parent - stocks possessed the characteristic enormous crop ? The supposed aboriginal stocks must all have been rock - pigeons , that is , not breeding or willingly perching on trees ...
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Common terms and phrases
accumulated adapted affinities allied species America amount analogous ancient animals appear 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 hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner Marsupials migration modification modified descendants natural selection naturalists nearly nest oceanic islands offspring organisation perfect pigeons plants pollen present probably produced progenitor racters ranked reciprocal crosses remarked resemble rock-pigeon rudimentary organs seeds sexual selection Silurian slight South America sterility structure struggle successive supposed tend theory tion variability variations varieties vary whole widely