Africa, to the south of the desert, is the proper home of the Negro race. Tribes of true Negro stock occupy by far the larger portion of that great continent to the southward of the Senegal, the Niger, the basin of Lake Chad, and the highlands of Abyssinia. The Arabs, however, have penetrated Central Africa within the basins of the Niger and Lake Chad, and have been settled for upward of five centuries upon the coasts of Eastern Africa. The Hottentot and Caffre families, who inhabit the extreme south of the African continent, must be classed as sub-varieties of the Negro stock. The epithet _negroid_ is generally applied to these races. But between the Hottentot and Negro types there is a well-marked distinction, and not less so between the Hottentot and the Caffre families. The color of the Hottentot is a dark and yellowish brown; the hair short and frizzled, and distributed over the head in tufts; the stature short. The Caffres are well made and (comparatively to their neighbors of Hottentot race) of muscular frame--their limbs of rounded form, their skin of deep brown color, their hair short, black, and curly, but less woolly than that of the Negro. The Negro race, through the iniquities of the slave-trade, has been transplanted from Africa to the other side of the Atlantic, and now forms a considerable item in the population of the New World. In North America, the people of pure Negro blood amount, however, to hardly more than a twelfth part of the total population; in South America the proportion is perhaps rather more considerable. The Malay, or brown family of nations, is distinguished, besides the color of the skin, by lank, coarse, and black hair; with flat faces and obliquely set eyes. Their stature is below the average height either of the Caucasian or the Negro, and the figure generally square and robust.