general interests of mankind? In regard to the defeat of the Arabians by the Franks, the case is altogether different. They were the same species, and doubtless, at that time, more advanced than the Europeans, but they were Mohammedans, and in the full flush of enthusiasm for their faith, which they invariably propagated by the sword. And if they had overrun Europe as they did Asia, somewhat similar results would doubtless have followed, for though it is altogether improbable, indeed, in view of its Divine origin, impossible, that they could have exterminated the Christian religion, they would have done it and the general cause of civilization incalculable injury. But both of these great branches of the race have long since disappeared from history. The Semitic element can scarcely be said to exist at all. In Africa it is adulterated by the blood of the Negro, and perhaps the blood of some race or races not so low in the scale as the Negro. In Asia it is mixed with the Mongolian blood, and though the Arab and Persian populations of our day are mainly white, there is more or less taint pervading all the Asiatic communities. The great Pelasgian branch has long since disappeared and been swallowed up in the more modern branches of the race, and though the modern Italian claims to be, and doubtless is, the lineal descendant of the ancient Roman, no portions of the race are wider apart than the ancient Roman and his modern descendant, a striking proof that accidental consanguinity does not affect the universality of the race.