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 2
... . For I am well aware that scarcely a single point is discussed in this volume on which facts cannot be adduced , often apparently leading to conclusions directly opposite to those at which I have arrived . A fair result 2 INTRODUCTION .
... . For I am well aware that scarcely a single point is discussed in this volume on which facts cannot be adduced , often apparently leading to conclusions directly opposite to those at which I have arrived . A fair result 2 INTRODUCTION .
Page 7
... points which strikes us is , that they generally differ more from each other than do the in- dividuals of any one species or variety in a state of nature . And if we reflect on the vast diversity of the plants and animals which have ...
... points which strikes us is , that they generally differ more from each other than do the in- dividuals of any one species or variety in a state of nature . And if we reflect on the vast diversity of the plants and animals which have ...
Page 14
... points of structure and constitution in which the varieties and sub - varieties differ slightly from each other . The whole organisation seems to have become plastic , and departs in a slight degree from that of the parental type . Any ...
... points of structure and constitution in which the varieties and sub - varieties differ slightly from each other . The whole organisation seems to have become plastic , and departs in a slight degree from that of the parental type . Any ...
Page 19
... point , if it could be cleared up , would be interesting ; if , for instance , it could be shown that the greyhound , bloodhound , terrier , spaniel , and bull - dog , which we all know propagate their kind truly , were the offspring of ...
... point , if it could be cleared up , would be interesting ; if , for instance , it could be shown that the greyhound , bloodhound , terrier , spaniel , and bull - dog , which we all know propagate their kind truly , were the offspring of ...
Page 25
... points of structure which are variable . The period at which the perfect plumage is acquired varies , as does the state of the down with which the nestling birds are clothed when hatched . The shape and size of the eggs vary . The ...
... points of structure which are variable . The period at which the perfect plumage is acquired varies , as does the state of the down with which the nestling birds are clothed when hatched . The shape and size of the eggs vary . 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