The Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life |
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Page vi
... action - Extinction caused by Natural Se- lection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and ...
... action - Extinction caused by Natural Se- lection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and ...
Page xiv
... action of the physical conditions of life , something to the crossing of already existing forms , and much to use and disuse , that is , to the effects of habit . To this latter agency he seems to attribute all the beautiful adaptations ...
... action of the physical conditions of life , something to the crossing of already existing forms , and much to use and disuse , that is , to the effects of habit . To this latter agency he seems to attribute all the beautiful adaptations ...
Page xviii
... action of the conditions of life . He clearly saw , however , the full force of the principle of natural selection . The celebrated geologist and naturalist , Von Buch , in his excellent Description Physique des Isles Canaries ' ( 1836 ...
... action of the conditions of life . He clearly saw , however , the full force of the principle of natural selection . The celebrated geologist and naturalist , Von Buch , in his excellent Description Physique des Isles Canaries ' ( 1836 ...
Page 8
... action , we must bear in mind that in every case , as Professor Weis- mann has lately insisted , and as I have incidentally shown in my work on ' Variation under Domestication , ' there are two factors : namely , the nature of the organ ...
... action , we must bear in mind that in every case , as Professor Weis- mann has lately insisted , and as I have incidentally shown in my work on ' Variation under Domestication , ' there are two factors : namely , the nature of the organ ...
Page 17
... action of the poor soil ) , that they would , to a large extent , or even wholly , revert to the wild aboriginal stock . Whether or not the experiment would succeed , is not of great importance for our line of argu- ment ; for by the ...
... action of the poor soil ) , that they would , to a large extent , or even wholly , revert to the wild aboriginal stock . Whether or not the experiment would succeed , is not of great importance for our line of argu- ment ; for by the ...
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Common terms and phrases
adapted affinities allied species America ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour common continent crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellę larvę less living males mammals manner marsupials migration modified descendants natural selection naturalists nearly nest occasionally offspring organisation organs parent peculiar perfect pigeon pistil pollen present principle probably produced progenitor quadrupeds ranked remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed swimbladder tend theory tion trees variability variations varieties vary whilst whole wings young