Mukalli, an apparently insignificant tributary, on the right bank. In the angle between the left bank of the Mukalli and the Lualaba there was a high range of hills, and here the rapids again began. After working up them for many hours we came to a specially difficult one called Nyangi. The fall here cannot be less than fifteen feet. A curious cone-shaped rock, about forty feet high, apparently of white quartz, juts out in the middle of the river, on both sides of which are enormous blocks of quartz, while on the left bank is a cliff” of quartz about ninety feet high.

We camped on an island, which seemed to be a solid block of quartz, with only scrubby grass growing on it. This island is called Kitenge, after the chief who owns it, and is about three miles long, and from half a mile to a mile wide.