It is by natural selection that those most fitted to succeed in the struggle for existence survive and propagate their kind. The familiar example may be cited of the deer which, being the equal of all the other members of the herd in other respects, is less swift of foot, and hence lagging behind his fellows falls a victim to his feline enemy the panther. His untimely death has eliminated him from the problem and made it impossible for him to become the progenitor of a slow-footed race of deer.
The dominant races of men have been evolved by reason of the operation of the law of natural selection. While we may not at this time care to repeat or emulate the violent acts of our forefathers, by which they over-ran the territories of their less ferocious neighbors, appropriating the land, and in many instances slaughtering entire populations, we must