Furthermore, modern migration is itself only one aspect of a still more fundamental disgenic trend. The whole course of modern urban and industrial life is disgenic. Over and above immigration, the tendency is toward a replacement of the more valuable by the less valuable elements of the population. All over the civilized world racial values are diminishing, and the logical end of this disgenic process is racial bankruptcy and the collapse of civilization. Now why is all this? It is primarily because we have not yet adjusted ourselves to the radically new environment into which our epochal scientific discoveries led us a century ago. Such adaptation as we have effected has been almost wholly on the material side. The no less sweeping idealistic adaptations which the situation calls for have not been made. Hence, modern civilization has been one-sided, abnormal, unhealthy--and nature is exacting penalties which will increase in severity until we either fully adapt or _finally perish_. "Finally perish!" That is the exact alternative which confronts the white race. For white civilization is to-day conterminous with the white race. The civilizations of the past were local. They were confined to a particular people or group of peoples. If they failed, there were always some unspoiled, well-endowed barbarians to step forward and "carry on." But to-day _there are no more white barbarians_. The earth has grown small, and men are everywhere in close touch. If white civilization goes down, the white race is irretrievably ruined. It will be swamped by the triumphant colored races, who will obliterate the white man by elimination or absorption. What has taken place in Central Asia, once a white and now a brown or yellow land, will take place in Australasia, Europe, and America. Not to-day, nor yet to-morrow; perhaps not for generations; but surely in the end. If the present drift be not changed, we whites are all ultimately doomed. Unless we set our house in order, the doom will sooner or later overtake us all. And that would mean that the race obviously endowed with the greatest creative ability, the race which had achieved most in the past and which gave the richer promise for the future, had passed away, carrying with it to the grave those potencies upon which the realization of man's highest hopes depends. A million years of human evolution might go uncrowned, and earth's supreme life-product, man, might never fulfil his potential destiny. This is why we to-day face "The Crisis of the Ages." To many minds the mere possibility of such a catastrophe may seem unthinkable. Yet a dispassionate survey of the past shows that it is not only possible but probable if present conditions go on unchanged. The whole history of life, both human and subhuman, teaches us that nature will not condone disobedience; that, as I have already phrased it, "no living being stands above her law, and protozoön or demigod, if they transgress, alike must die."