On the Origin of Species by Means of Natural Selection: Or, The Preservation of Favoured Races in the Struggle for LifeThis is the 'second edition' of Darwin's Origin of Species. |
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Page 95
Thus I can understand how a flower and a bee might slowly become, either
simultaneously or one after the other, modified and adapted in the most perfect
manner to each other, by the continued preservation of individuals presenting
mutual ...
Thus I can understand how a flower and a bee might slowly become, either
simultaneously or one after the other, modified and adapted in the most perfect
manner to each other, by the continued preservation of individuals presenting
mutual ...
Page 98
When the stamens of a flower suddenly spring towards the pistil, or slowly move
one after the other towards it, the contrivance seems adapted solely to ensure
selffertilisation; and no doubt it is useful for this end: but, the agency of insects is ...
When the stamens of a flower suddenly spring towards the pistil, or slowly move
one after the other towards it, the contrivance seems adapted solely to ensure
selffertilisation; and no doubt it is useful for this end: but, the agency of insects is ...
Page 104
But isolation probably acts more efficiently in checking the immigration of better
adapted organisms, after any physical change, such as of climate or elevation of
the land, &c.; and thus new places in the natural economy of the country are left ...
But isolation probably acts more efficiently in checking the immigration of better
adapted organisms, after any physical change, such as of climate or elevation of
the land, &c.; and thus new places in the natural economy of the country are left ...
Page 108
The existence of such places will often depend on physical changes, which are
generally very slow, and on the immigration of better adapted forms having been
checked. But the action of natural selection will probably still oftener depend on ...
The existence of such places will often depend on physical changes, which are
generally very slow, and on the immigration of better adapted forms having been
checked. But the action of natural selection will probably still oftener depend on ...
Page 115
It might have been expected that the plants which have succeeded in becoming
naturalised in any land would generally have been closely allied to the indigenes
; for these are commonly looked at as specially created and adapted for their ...
It might have been expected that the plants which have succeeded in becoming
naturalised in any land would generally have been closely allied to the indigenes
; for these are commonly looked at as specially created and adapted for their ...
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action adapted allied America amount ancient animals appear become believe birds breeds cause chapter characters climate closely common compared considered continuous crossed descended developed difficulty distinct domestic doubt Edition effects existing extinct extremely facts families favourable fertility flowers follow formations forms genera genus geological give given groups habits hand Hence History hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind land laws less living look male manner means modification namely natural selection naturalists nearly never observed occur organic origin parent perfect period plants points Post 8vo present principle probably produced range ranked reason remarked Second seeds seems seen separated single slight sometimes species sterility structure struggle successive supposed tend theory tion variability variations varieties vary Vols whole widely Woodcuts