Those who believe in the obliteration of the black race will speculate on the time required for such a consummation. Suppose then each generation is only able to leave behind it half its own numbers, this would bring the blacks to the vanishing point at about the end of a century, by which time the white population of the United States will probably outnumber that of the whole of Europe. The rate of decrease, however, may be much more rapid. Persons now living can recollect the time when a considerable quarter of the city of Boston was occupied by these people; but now, without emigration, they have almost entirely disappeared. This is attributed by the people of Boston to several causes. In a state of freedom they bring up very few children. The mortality also among them is very great, especially from consumption; and then there is the fact that in the second, or at latest the third generation, the mixed race becomes quite incapable of continuing itself. These facts are distressing to contemplate; but nothing is gained by refusing to look facts in the face, of whatever character they may be. It is an analogous fact that the red man has been swept away from the face of the continent that was his own, all the way from Boston to the Rocky Mountains; and the work of annihilation will soon be complete from the Atlantic to the Pacific. But this ordinance of nature, that a civilised and a savage race cannot coexist on the same soil, is no reason why the inferior race should be treated with unfairness, unkindness, or contempt. [Sidenote: _Fusion of Races Impossible._] As to the fusion of the two races, history assures us that nothing of the kind has ever been accomplished, and that it is physically impossible. And it is fortunate for the progress of mankind that nature has put her veto upon it; otherwise that portion of the highest, and most advanced, and most richly endowed race of the human family, which has been placed on the grandest and most favourable stage for fresh development, would be sunk and degraded by admixture with the lowest race of all. The fact that in the long centuries during which the Greeks and the Romans occupied Western Asia and Northern Africa, they were unable to produce a mixed race capable of maintaining itself, may be suggested for the consideration of those who are advocating a scheme of ‘miscegenation’ between the Anglo-Saxon and the negro.