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230 pages, Hardcover
First published January 1, 1878
We should expect to find a predominance of sexual over asexual generation, in the arrangements of nature for continuing her various species, inasmuch as two heads are better than one, and a locus pœnitentiæ is thus given to the embryo - an opportunity of correcting the experience of one parent by that of the other. And this is what the more intelligent embryos may be supposed to do; for there would seem little reason to doubt that there are clever embryos and stupid embryos, with better or worse memories, as the case may be, of how they dealt with their protoplasm before, and better or worse able to see how they can do better now; and that embryos differ as widely in intellectual and moral capacity, and in a general sense of the fitness of things, and of what will look well into the bargain, as those larger embryos - to wit, children - do.
After which, however, the conclusion arrived at is, that, “after all, the cause more probably lies in some imperfection in the original act of impregnation, causing the embryo to be imperfectly developed rather than in the conditions to which it is subsequently exposed.” A conclusion which I am not prepared to accept.
Food, when sufficiently assimilated (the whole question turning upon what is “sufficiently”), becomes stored with all the experience and memories of the assimilating creature; corn becomes hen, and knows nothing but hen, when hen has eaten it.
But if we turn from what “might” or what “would” happen to what “does” happen, we find that a few white families have nearly driven the Indian from the United States, the Australian natives from Australia, and the Maories from New Zealand. True, these few families have been helped by immigration; but it will be admitted that this has only accelerated a result which would otherwise, none the less surely, have been effected.