Though there is a certain physical resemblance among those tribes who speak clearly-marked Bantu dialects (the Babangi of the upper Congo, the people of the Great Lakes, the Ova-herero, the Ba-tonga, Zulu-Kafirs, Awemba and some of the East Coast tribes), there is nevertheless a great diversity in outward appear ance, shape of head and other physical characteristics, among the negroes who inhabit