How, then, can we say what is the type to breed from, even if we confine our attention to one country?
If, on the other hand, we look farther afield, and study the results of race-mixture or "miscegenation," we but encounter fresh puzzles.

That the half-breed is an unsatisfactory person may be true; and yet, until the conditions of his upbringing are somehow discounted, the race problem remains exactly where it was.

Or, again, it may be true that miscegenation increases human fertility, as some hold; but, until it is shown that the increase of fertility does not merely result in flooding the world with inferior types, we are no nearer to a solution.
If, then, there is a practical moral to this chapter, it is merely this: to encourage anthropologists to press forward with their study of race; and in the meantime to do nothing rash..