We find upon the world's stage today eight distinctly differentiated races, in the sense in which History tells us the word must be used. They are, the Slavs of eastern Europe, the Teutons of middle Europe, the English of Great Britain and America, the Romance nations of Southern and Western Europe, the Negroes of Africa and America, the Semitic people of Western Asia and Northern Africa, the Hindoos of Central Asia and the Mongolians of Eastern Asia. There are, of course, other minor race groups, as the American Indians, the Esquimaux and the South Sea Islanders; these larger races, too, are far from homogeneous; the Slav includes the Czech, the Magyar, the Pole and the Russian; the Teuton includes the German, the Scandinavian and the Dutch; the English include the Scotch, the Irish and the conglomerate American. Under Romance nations the widely-differing Frenchman, Italian, Sicilian and Spaniard are comprehended. The term Negro is, perhaps, the most indefinite of all, combining the Mulattoes and Zamboes of America and the Egyptians, Bantus and Bushmen of Africa. Among the Hindoos are traces of widely differing nations, while the great Chinese, Tartar, Corean and Japanese families fall under the one designation--Mongolian. The question now is: What is the real distinction between these nations? Is it the physical differences of blood, color and cranial measurements? Certainly we must all acknowledge that physical differences play a great part, and that, with wide exceptions and qualifications, these eight great races of to-day follow the cleavage of physical race distinctions; the English and Teuton represent the white variety of mankind; the Mongolian, the yellow; the Negroes, the black. Between these are many crosses and mixtures, where Mongolian and Teuton have blended into the Slav, and other mixtures have produced the Romance nations and the Semites. But while race differences have followed mainly physical race lines, yet no mere physical distinctions would really define or explain the deeper differences--the cohesiveness and continuity of these groups. The deeper differences are spiritual, psychical, differences--undoubtedly based on the physical, but infinitely transcending them. The forces that bind together the Teuton nations are, then, first, their race identity and common blood; secondly, and more important, a common history, common laws and religion, similar habits of thought and a conscious striving together for certain ideals of life. The whole process which has brought about these race differentiations has been a growth, and the great characteristic of this growth has been the differentiation of spiritual and mental differences between great races of mankind and the integration of physical differences.