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 4
... flowers with separate sexes absolutely re- quiring the agency of certain insects to bring pollen from one flower to the other , it is equally preposterous to account for the structure of this parasite , with its relations to several ...
... flowers with separate sexes absolutely re- quiring the agency of certain insects to bring pollen from one flower to the other , it is equally preposterous to account for the structure of this parasite , with its relations to several ...
Page 35
... flower - garden races of plants , most useful to man at dif- ferent seasons and for different purposes , or so beautiful in his eyes , we must , I think , look further than to mere variability . We cannot suppose that all the breeds ...
... flower - garden races of plants , most useful to man at dif- ferent seasons and for different purposes , or so beautiful in his eyes , we must , I think , look further than to mere variability . We cannot suppose that all the breeds ...
Page 37
... flowers in the different varieties of the same species in the flower - garden ; the diversity of leaves , pods , or tubers , or whatever part is valued , in the kitchen garden , in comparison with the flowers of the same varieties ; and ...
... flowers in the different varieties of the same species in the flower - garden ; the diversity of leaves , pods , or tubers , or whatever part is valued , in the kitchen garden , in comparison with the flowers of the same varieties ; and ...
Page 38
... flowers present very slight differences . It is not that the varieties which differ largely in some one point do not differ at all in other points ; this is hardly ever , I speak after careful observation , -perhaps never , the case ...
... flowers present very slight differences . It is not that the varieties which differ largely in some one point do not differ at all in other points ; this is hardly ever , I speak after careful observation , -perhaps never , the case ...
Page 42
... the wild parent- stocks of the plants which have been longest cultivated in our flower and kitchen gardens . If it has taken centuries or thousands of years to improve or modify most 42 [ CHAP . I. UNCONSCIOUS SELECTION .
... the wild parent- stocks of the plants which have been longest cultivated in our flower and kitchen gardens . If it has taken centuries or thousands of years to improve or modify most 42 [ CHAP . I. UNCONSCIOUS SELECTION .
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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