ORGANIC EVOLUTION—THE FACTORS
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which are founded on that supposition are fantastic and wild to a degree. If one thing is denuded of blood it does not follow that another thing will atrophy. If the eye of an animal be denuded of blood, much is taken for granted when it is assumed that its germ cell, situated far distant, will proliferate into an organism with an atrophied eye. It is precisely the physiological processes that Mr. Spencer fails to keep in the foreground, and, in this case, no one more than he fails to profit by the salutary advice: "Clearer conceptions of these matters would be reached if, instead of thinking in abstract terms, the physiological processes concerned were brought into the foreground."
