On the Origin of Species by Means of Natural Selection |
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Page 10
... point is discussed in this volume on which facts cannot be adduced , often apparently leading to conclusions di- rectly opposite to those at which I have arrived . A fair result can be obtained only by fully stating and balancing the ...
... point is discussed in this volume on which facts cannot be adduced , often apparently leading to conclusions di- rectly opposite to those at which I have arrived . A fair result can be obtained only by fully stating and balancing the ...
Page 14
... points which strikes us , is , that they gen erally differ much more from each other , than do the in- dividuals of any one species or variety in a state of nature . When we reflect on the vast diversity of the plants and animals which ...
... points which strikes us , is , that they gen erally differ much more from each other , than do the in- dividuals of any one species or variety in a state of nature . When we reflect on the vast diversity of the plants and animals which ...
Page 17
... point of view , Mr. Buckman's recent experiments on plants seem extremely valuable . When all or nearly all the individ- uals exposed to certain conditions are affected in the same way , the change at first appears to be directly due to ...
... point of view , Mr. Buckman's recent experiments on plants seem extremely valuable . When all or nearly all the individ- uals exposed to certain conditions are affected in the same way , the change at first appears to be directly due to ...
Page 18
... points in structure and constitution in which the varieties and subvarieties differ slightly from each other . The whole organisation seems to have become plastic , and tends to depart in some small degree from that of the parental type ...
... points in structure and constitution in which the varieties and subvarieties differ slightly from each other . The whole organisation seems to have become plastic , and tends to depart in some small degree from that of the parental type ...
Page 22
... 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 so truly , were the offspring ...
... 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 so truly , were the offspring ...
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Common terms and phrases
accumulated adapted affinities allied species America amount ancient animals appear become bees believe birds breeds cause cells characters cirripedes climate closely allied colour continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo endemic Europe existing exterminated extinct extremely facts favourable fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ laws less living look male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring organic organisation perfect pigeons pistil plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rudimentary seeds sexual selection Silurian slight South America sterility structure struggle successive suppose swimbladder tend theory tion trees variability variation varieties vary whole widely