24/41 These gullies being in compact clay, the water has but little power of erosion, so they are worn deep but narrow. Some fragments of titaniferous iron ore, with haematite changed by heat, and magnetic, lay in the gully, which had worn itself a channel on the north side of the village. The Bua, like most African streams whose sources I have seen, rises in an oozing boggy spot. Another stream, the Tembwe, rises near the same spot, and flows N.W.into, the Loangwa. We saw Shuare palms in its bed. |