He cannot.

It is not true; and if it were, the descent of blood through the same channels, for centuries, has formed habits of thought not so easily to be disturbed.
Amalgamation would afford the only true and profound means of civilization.

But nature seems, like all else, to declare that this race is fated to perish.

Those of mixed blood fade early, and are not generally a fine race.

They lose what is best in either type, rather than enhance the value of each, by mingling.