On the Origin of the Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 13
... Hence if man goes on selecting , and thus aug- menting , any peculiarity , he will almost certainly modify unintentionally other parts of the structure , owing to the mysterious laws of correlation . The results of the various , unknown ...
... Hence if man goes on selecting , and thus aug- menting , any peculiarity , he will almost certainly modify unintentionally other parts of the structure , owing to the mysterious laws of correlation . The results of the various , unknown ...
Page 15
... but invariably revert in character to their aboriginal stocks . Hence it has been argued that no deductions can be drawn from domestic races to species in a state of nature . discover on what decisive CHAP . I. 15 UNDER DOMESTICATION .
... but invariably revert in character to their aboriginal stocks . Hence it has been argued that no deductions can be drawn from domestic races to species in a state of nature . discover on what decisive CHAP . I. 15 UNDER DOMESTICATION .
Page 25
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesticated , and yet be unknown to ornithologists ; and this , considering their size , habits , and remarkable characters ...
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesticated , and yet be unknown to ornithologists ; and this , considering their size , habits , and remarkable characters ...
Page 26
... Hence it must be assumed not only that half - civilized man succeeded in thoroughly domesticating several species , but that he intentionally or by chance picked out extraordinarily abnormal spe- cies ; and further , that these very ...
... Hence it must be assumed not only that half - civilized man succeeded in thoroughly domesticating several species , but that he intentionally or by chance picked out extraordinarily abnormal spe- cies ; and further , that these very ...
Page 42
... hence the Toulouse and the common breed , which differ only in colour , that most fleeting of characters , have lately been exhibited as distinct at our poultry - shows . I think these views explain what has sometimes been noticed ...
... hence the Toulouse and the common breed , which differ only in colour , that most fleeting of characters , have lately been exhibited as distinct at our poultry - shows . I think these views explain what has sometimes been noticed ...
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Common terms and phrases
accumulated adapted admit affinities allied species America analogous ancient appear archipelago Asa Gray become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common continuous crossed crustaceans degree developed difficulty distinct species divergence doubt eggs embryo existing exterminated extinct extremely facts favourable females fertilised fertility flowers formation forms fossil Fritz Müller Gärtner genera genus geological Glacial period gradations greater number groups of species habits Hence hermaphrodites hive-bee hybrids important individuals inhabitants inherited insects instance instincts intercrossing larvæ less living males mammals manner migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation parent perfect pigeons pistil pollen present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble rudimentary organs seeds sexual sexual selection Silurian slight South America stamens sterility structure struggle successive suppose theory tion variability variations vary whilst whole