On the Origin of Species by Means of Natural Selection |
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Page 10
... doubt errors will have crept in , though I hope I have always been cautious in trusting to good authorities alone . I can here give only the general conclusions at which I have arrived , with a few facts in illustration , but which , I ...
... doubt errors will have crept in , though I hope I have always been cautious in trusting to good authorities alone . I can here give only the general conclusions at which I have arrived , with a few facts in illustration , but which , I ...
Page 13
... doubt , after the most deliberate study and dispassionate judgment of which I am capable , that the view which most naturalists entertain , and which I formerly enter tained - namely , that each species has been independently created ...
... doubt , after the most deliberate study and dispassionate judgment of which I am capable , that the view which most naturalists entertain , and which I formerly enter tained - namely , that each species has been independently created ...
Page 19
... doubts how strong is the tendency to inheritance : like produces like is his fundamental belief : doubts have been thrown on this principle by theoretical writers alone . When any devia- tion of structure often appears , and we see it ...
... doubts how strong is the tendency to inheritance : like produces like is his fundamental belief : doubts have been thrown on this principle by theoretical writers alone . When any devia- tion of structure often appears , and we see it ...
Page 22
... doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in char- acters of generic value . I think it could be shown that this statement is hardly correct ; but naturalists ...
... doubt could not so perpetually recur . It has often been stated that domestic races do not differ from each other in char- acters of generic value . I think it could be shown that this statement is hardly correct ; but naturalists ...
Page 23
... doubt that if other animals and plants , equal in number to our domes- ticated productions , and belonging to equally diverse classes and countries , were taken from a state of nature , and could be made to breed for an equal number of ...
... doubt that if other animals and plants , equal in number to our domes- ticated productions , and belonging to equally diverse classes and countries , were taken from a state of nature , and could be made to breed for an equal number of ...
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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