It is above all the little wooden boxes in which the people keep their snuff, their medicines, and sometimes their gunpowder - which show real taste and a style and execution which can pass muster even from our point of view. The ornamentation which the older generation of men carry about on their skins in the form of keloids is applied to the lids of these boxes. Some of them take the shape of animals . . . Human heads, too are found among these carvings, and are executed with the same skill in technique. Most of them have the hair dressed in a long pig-tail, and the face still more cicatrized than the Makonde; these, I learn, represent members of the Mavia tribe.'