On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for Life |
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Page 14
... 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 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 directly opposite to those at which I have arrived . A fair result can be obtained only by fully stating and balancing the ...
Page 19
... points which strikes us , is , that they generally differ more from each other than do the individuals of any one species or variety in a state of nature . When we reflect on the vast diversity of the plants and animals which have been ...
... points which strikes us , is , that they generally differ more from each other than do the individuals of any one species or variety in a state of nature . When we reflect on the vast diversity of the plants and animals which have been ...
Page 22
... point of view , Mr. Buckman's recent experiments on plants are extremely valuable . When all or nearly all the individuals 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 are extremely valuable . When all or nearly all the individuals exposed to certain , conditions are affected in the same way , the change at first appears to be directly due to ...
Page 23
... points in structure and constitution in which the varieties and sub - varieties 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 ...
... points in structure and constitution in which the varieties and sub - varieties 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 ...
Page 26
... 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 al ! 1 know propagate their kind so truly , were the 26 ...
... 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 al ! 1 know propagate their kind so truly , were the 26 ...
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Common terms and phrases
accumulated adapted affinities allied species America analogous ancient animals appear archipelago 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 existing exterminated extinct extremely facts favourable fertilised fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids hybrids produced important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate larvæ laws less living males mammals manner migration modification modified descendants natural selection naturalists nearly nest occasionally offspring organic organisation origin of species perfect pigeons plants pollen present principle probably produced progenitor ranked reciprocal crosses remarked resemble rock-pigeon rudimentary seeds sexual sexual selection Silurian slight sometimes South America sterility structure struggle successive supposed swimbladder tend theory variability variations varieties vary whole widely