We have, therefore, the evidence of a race of men, striking through the other darker ones, on perhaps nearly a central line, from one end of the continent to the other. The poor despised Bushman, forming for himself, with sticks and grass, a lair among the low-spreading branches of a protea, or nestling at sunset in a shallow hole, amid the warm sand of the desert, with wife and little ones like a covey of birds, sheltered by some ragged sheepskins from the dew of the clear sky, has an ancestral and mental relationship to the builder of the pyramids and the colossal temples of Egypt, and to the artists who adorned them. He looks on nature with a like eye, and stereotypes in his language the same conclusions derived from it. He has in his words vivified external things, as they did, according to that form which, in our more logical tongues, we name poetical metaphor. The _sun_--“Soorees”--is to him a female, the productive mother of all organic life; and rivers, as Kuis-eep, Gar-eep, are endowed with masculine activity and strength. To this scattered family of man, which ought properly to be called the _Ethiopic_ race, as distinguished from the negro, may probably be ascribed the fierce invasions from the centre, eastward and westward, under the names of Galla Giagas, and other appellations, which occasionally convulsed both sides of Africa; and, perhaps, by intermixture of races, gave occasion to much of the diversity found among native tribes, in disposition, manners, and language. The localities occupied by it have become insulated through the intrusion of the negro. Its southern division, or the Hottentot tribes, were being pressed off into an angle, and apparently in the process of extinction or absorption by the Zambezan Kaffirs from the north and east, when Europeans met and rolled them away into a small corner of desert. Egypt was evidently the artery through which population poured into the broad expanse of Africa. That the progenitors of the negro race first entered there, and that another race followed subsequently, is one mode of disposing of the question, which, however, only removes its difficulties a little farther back. This supposition is unnecessary. Any number of human families living together, comprises varieties of constitution, affording a source from which, by the force of external circumstances, the extreme variations may be educed. If we examine critically the representations of the oldest inhabitants of Egypt, we shall see in the form of man which they exhibit, a combination of characteristics, or a provision for breaking into varieties corresponding to the conditions of external nature in the interior regions.