On the Origin of Species by Means of Natural Selection |
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Page x
Charles Darwin. The " Philosophy of Creation " has been treated in an admirable manner by the Rev. Baden Powell , in his Es- says on the Unity of Worlds , 1855. Nothing can be more striking than the manner in which he shows that the in ...
Charles Darwin. The " Philosophy of Creation " has been treated in an admirable manner by the Rev. Baden Powell , in his Es- says on the Unity of Worlds , 1855. Nothing can be more striking than the manner in which he shows that the in ...
Page 6
... manner are highly variable : specific characters more variable than generic : secondary sexual characters variable - Species of the same genus vary in an analogous manner - Re- versions to long lost characters - Summary , CHAPTER VI ...
... manner are highly variable : specific characters more variable than generic : secondary sexual characters variable - Species of the same genus vary in an analogous manner - Re- versions to long lost characters - Summary , CHAPTER VI ...
Page 12
... manner profitable to itself , under the complex and sometimes varying con ditions of life , will have a better chance of surviving , ano thus be naturally selected . From the strong principle of inheritance , any selected variety will ...
... manner profitable to itself , under the complex and sometimes varying con ditions of life , will have a better chance of surviving , ano thus be naturally selected . From the strong principle of inheritance , any selected variety will ...
Page 13
... manner as the acknowledged varieties of any one species are the descendants of that species . Furthermore , I am convinced that Natural Selection has been the main but not exclu sive means of modification . CHAPTER I. VARIATION UNDER ...
... manner as the acknowledged varieties of any one species are the descendants of that species . Furthermore , I am convinced that Natural Selection has been the main but not exclu sive means of modification . CHAPTER I. VARIATION UNDER ...
Page 17
... manner . To judge how much , in the case of any variation , we should attribute to the direct action of heat , moisture , light , food , & c . , is most difficult : my impression is , that with animals such agen- cies have produced very ...
... manner . To judge how much , in the case of any variation , we should attribute to the direct action of heat , moisture , light , food , & c . , is most difficult : my impression is , that with animals such agen- cies have produced very ...
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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