On the Origin of Species by Means of Natural Selection: Or The Preservation of Favored Races in the Struggle for Life, 2±ÇD. Appleton, 1888 - 458ÆäÀÌÁö |
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xxi ÆäÀÌÁö
... admits the truth of the descent and modification of species , and supports this doctrine by many original observations . The first edition of this work was published on November 24th , 1859 , and the second edition on January 7th , 1860 ...
... admits the truth of the descent and modification of species , and supports this doctrine by many original observations . The first edition of this work was published on November 24th , 1859 , and the second edition on January 7th , 1860 ...
14 ÆäÀÌÁö
... c . , we must admit that many domestic breeds must have originated in Europe ; for whence otherwise could they have been derived ? So it is in India . Even in the case of the breeds 14 CHAP . 1 Character of Domestic Varieties .
... c . , we must admit that many domestic breeds must have originated in Europe ; for whence otherwise could they have been derived ? So it is in India . Even in the case of the breeds 14 CHAP . 1 Character of Domestic Varieties .
15 ÆäÀÌÁö
... admit are descended from several wild spe cies , it cannot be doubted that there has been an immense amount of inherited variation ; for who will believe that animals closely resembling the Italian greyhound , the bloodhound , the bull ...
... admit are descended from several wild spe cies , it cannot be doubted that there has been an immense amount of inherited variation ; for who will believe that animals closely resembling the Italian greyhound , the bloodhound , the bull ...
21 ÆäÀÌÁö
... admit that many of our domestic races are descended from the same parents - may they not learn a lesson of caution , when they deride the idea of species in a state of nature being lineal descendants of other species ? Principles of ...
... admit that many of our domestic races are descended from the same parents - may they not learn a lesson of caution , when they deride the idea of species in a state of nature being lineal descendants of other species ? Principles of ...
40 ÆäÀÌÁö
... admits that out of the 300 species , which will be enumerated in his Pro- dromus as belong ng to the oak family , at least two - thirds are provisional species , that is , are not known strictly 40 CHAP . IL Doubtful Species .
... admits that out of the 300 species , which will be enumerated in his Pro- dromus as belong ng to the oak family , at least two - thirds are provisional species , that is , are not known strictly 40 CHAP . IL Doubtful Species .
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adapted admit affinities allied species America analogous ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamell©¡ larv©¡ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed tend theory tion variability variations varieties vary whilst whole wings young