On the Origin of Species by Means of Natural Selection: Or the Preservation of Favored Races in the Struggle for Life1859 |
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Page viii
... changes of climate and of the level of the land , and by occasional means - Dispersal during the Glacial period co - extensive with the world 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of viii CONTENTS .
... changes of climate and of the level of the land , and by occasional means - Dispersal during the Glacial period co - extensive with the world 346-382 CHAPTER XII . GEOGRAPHICAL DISTRIBUTION - continued . Distribution of viii CONTENTS .
Page 1
... period to the present day I have steadily pursued the same object . I hope that I may be excused for entering on these personal details , as I give them to show that I have not been hasty in coming to a decision . My work is now nearly ...
... period to the present day I have steadily pursued the same object . I hope that I may be excused for entering on these personal details , as I give them to show that I have not been hasty in coming to a decision . My work is now nearly ...
Page 8
... period of life the causes of variability , whatever they may be , generally act ; whether during the early or late period of development of the embryo , or at the instant of conception . Geoffroy St. Hilaire's experiments show that ...
... period of life the causes of variability , whatever they may be , generally act ; whether during the early or late period of development of the embryo , or at the instant of conception . Geoffroy St. Hilaire's experiments show that ...
Page 11
... period of flowering with plants when transported from one climate to another . In animals it has a more marked effect ; for instance , I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in ...
... period of flowering with plants when transported from one climate to another . In animals it has a more marked effect ; for instance , I find in the domestic duck that the bones of the wing weigh less and the bones of the leg more , in ...
Page 13
... period of life a peculiarity first appears , it tends to appear in the offspring at a corresponding age , though sometimes earlier . In many cases this could 1A- not be otherwise : thus the inherited peculiarities in the CHAP . I. 13 ...
... period of life a peculiarity first appears , it tends to appear in the offspring at a corresponding age , though sometimes earlier . In many cases this could 1A- not be otherwise : thus the inherited peculiarities in the CHAP . I. 13 ...
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Common terms and phrases
adapted affinities allied species America amount analogous ancient animals become bees believe birds breeds cause cells characters cirripedes climate closely allied colour common parent continuous crossed crustaceans degree difficulty distinct species divergence domestic doubt embryo Europe existing exterminated extinct extremely facts favourable Fcap fertility flowers formations forms fossil Gärtner genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hermaphrodites History hybrids hybrids produced important individuals inhabitants inherited insects instance instincts intercrossing intermediate land larvæ less living male mammals manner migration modification modified descendants natural selection naturalists nearly nest offspring perfect pigeons plants pollen Post 8vo present principle probably produced progenitor racters ranked reciprocal crosses remarked resemble Second Edition seeds sexual selection Silurian slight South America sterility structure struggle successive suppose theory Third Edition tion variability variation varieties vary Vols whole widely Woodcuts