Ours is a solemn moment. We stand at a crisis—the supreme crisis of the ages. For unnumbered millenniums man has toiled upward from the dank jungles of savagery toward glorious heights which his mental and spiritual potentialities give promise that he shall attain. His path has been slow and wavering. Time and again he has lost his way and plunged into deep valleys. Man’s trail is littered with the wrecks of dead civilizations and dotted with the graves of promising peoples stricken by an untimely end.

Humanity has thus suffered many a disaster. Yet none of these disasters were fatal, because they were merely local. Those wrecked civilizations and blighted peoples were only parts of a larger whole. Always some strong barbarians, endowed with rich, unspoiled heredities, caught the falling torch and bore it onward flaming high once more.

Out of the prehistoric shadows the white races pressed to the front and proved in a myriad ways their fitness for the hegemony of mankind. Gradually they forged a common civilization; then, when vouchsafed their unique opportunity of oceanic mastery four centuries ago, they spread over the earth, filling its empty spaces with their superior breeds and assuring to themselves an unparalleled paramountcy of numbers and dominion.

Three centuries later the whites took a fresh leap forward. The nineteenth century was a new age of discovery—this time into the realms of science. The hidden powers of nature were unveiled, incalculable energies were tamed to human use, terrestrial distance was abridged, and at last the planet was integrated under the hegemony of a single race with a common civilization.

The prospects were magnificent, the potentialities of progress apparently unlimited. Yet there were commensurate perils. Towering heights mean abysmal depths, while the very possibility of supreme success implies the possibility of supreme failure. All these marvellous achievements were due solely to superior heredity, and the mere maintenance of what had been won depended absolutely upon the prior maintenance of race-values. Civilization of itself means nothing. It is merely an effect, whose cause is the creative urge of superior germ-plasm. Civilization is the body; the race is the soul. Let the soul vanish, and the body moulders into the inanimate dust from which it came.

Two things are necessary for the continued existence of a race: it must remain itself, and it must breed its best. Every race is the result of ages of development which evolves specialized capacities that make the race what it is and render it capable of creative achievement. These specialized capacities (which particularly mark the superior races), being relatively recent developments, are highly unstable. They are what biologists call “recessive” characters; that is, they are not nearly so “dominant” as the older, generalized characters which races inherit from remote ages and which have therefore been more firmly stamped upon the germ-plasm. Hence, when a highly specialized stock interbreeds with a different stock, the newer, less stable, specialized characters are bred out, the variation, no matter how great its potential value to human evolution, being irretrievably lost. This occurs even in the mating of two superior stocks if these stocks are widely dissimilar in character. The valuable specializations of both breeds cancel out, and the mixed offspring tend strongly to revert to generalized mediocrity.

And, of course, the more primitive a type is, the more prepotent it is. This is why crossings with the negro are uniformly fatal. Whites, Amerindians, or Asiatics—all are alike vanquished by the invincible prepotency of the more primitive, generalized, and lower negro blood.

There is no immediate danger of the world being swamped by black blood. But there is a very imminent danger that the white stocks may be swamped by Asiatic blood.

The white man’s very triumphs have evoked this danger. His virtual abolition of distance has destroyed the protection which nature once conferred. Formerly mankind dwelt in such dispersed isolation that wholesale contact of distant, diverse stocks was practically impossible. But with the development of cheap and rapid transportation, nature’s barriers are down. Unless man erects and maintains artificial barriers the various races will increasingly mingle, and the inevitable result will be the supplanting or absorption of the higher by the lower types.

We can see this process working out in almost every phase of modern migration. The white immigration into Latin America is the exception which proves the rule. That particular migration is, of course, beneficent, since it means the influx of relatively high types into undeveloped lands, sparsely populated by types either no higher or much lower than the new arrivals. But almost everywhere else, whether we consider interwhite migrations or colored encroachments on white lands, the net result is an expansion of lower and a contraction of higher stocks, the process being thus a disgenic one. Even in Asia the evils of modern migration are beginning to show. The Japanese Government has been obliged to prohibit the influx of Chinese and Korean coolies who were undercutting Japanese labor and thus undermining the economic bases of Japanese life.