climate in the course of time should modify existing types; that it will
call itself white is reasonably sure; that it will conform closely to
the white type is likely; but that it will have absorbed and assimilated
the blood of the other two races mentioned is as certain as the
operation of any law well can be that deals with so uncertain a quantity
as the human race.

There are no natural obstacles to such an amalgamation. The unity of the
race is not only conceded but demonstrated by actual crossing. Any
theory of sterility due to race crossing may as well be abandoned; it is
founded mainly on prejudice and cannot be proved by the facts. If it
come from Northern or European sources, it is likely to be weakened by
lack of knowledge; if from Southern sources, it is sure to be colored
by prejudices. My own observation is that in a majority of cases people
of mixed blood are very prolific and very long-lived. The admixture of
races in the United States has never taken place under conditions likely
to produce the best results but there have nevertheless been enough
conspicuous instances to the contrary in this country, to say nothing of
a long and honorable list in other lands, to disprove the theory that
people of mixed blood, other things being equal, are less virile,
prolific or able than those of purer strains. But whether this be true
or not is apart from this argument. Admitting that races may mix, and
that they are thrown together under conditions which permit their
admixture, the controlling motive will be not abstract considerations
with regard to a remote posterity, but present interest and inclination.

The Indian element in the United States proper is so small
proportionally--about one in three hundred--and the conditions for its
amalgamation so favorable, that it would of itself require scarcely any
consideration in this argument. There is no prejudice against the Indian
blood, in solution. A half or quarter-breed, removed from the tribal
environment, is freely received among white people. After the second or
third remove he may even boast of his Indian descent; it gives him a
sort of distinction, and involves no social disability. The distribution
of the Indian race, however, tends to make the question largely a local
one, and the survival of tribal relation may postpone the results for
some little time. It will be, however, the fault of the United States
Indian himself if he be not speedily amalgamated wi