rapids are dark in tint, in places nearly black, and streaked with deep red. They are very rich in iron — so much so that all this day our compasses were of no use. In going twenty yards in a straight line, with no rock visible above the water, the needle would turn halfway round the box. Immediately above the second rapids, the Lualaba, here a mile wide, is joined on the right bank by the Lulindi. In the upper angle formed by the Lualaba and Lulindi are fine mountains, covered with forest, and called the Mountains of Bena Twiti.

Some distance higher up, the Lualaba is joined by another tributary from the east — the Luama. Between the Luama and the Lulindi the main river describes a right angle, flowing westward to the village of Sekabudi, then northwards to the confluence of the Lulindi. We camped on the left