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produced by the laws 1859 1860 1861 1866
the products 1869 1872

still acting round us, and preserved by Natural Selection. 1859 1860 1861 1866
and the Survival of the Fittest. 1869 1872

the main objections to the theory of natural selection are greatly diminished or disappear. On the other hand, all the chief laws of palæontology plainly proclaim, as it seems to me, that species have been produced by ordinary generation: old forms having been supplanted by new and improved forms of life, produced by the laws of
Variation
variation
still acting round us, and preserved by Natural Selection.