ones being responsible for the whirlpool we met outside the gateway of Boko Boko.
The scenery above Boko Boko was exceedingly lovely, the river shut in between its rim of mountains. As you pass up it opens out in front of you and closes in behind, the closely-set confused mass of mountains altering in form as you view them from different angles, save one, Kangwe—a blunt cone, evidently the record of some great volcanic outburst; and the sandbanks show again wherever the current deflects and leaves slack water, their bright glistening colour giving a relief to the scene.
For a long period we paddle by the south bank, and pass a vertical cleft-like valley, the upper end of which seems blocked by a finely shaped mountain, almost as conical as Kangwe. The name of this mountain is Njoko, and the name of the clear small river, that apparently monopolises the valley floor, is the Ovata. Our peace was not of long duration, and we were soon again in the midst of a bristling forest of rock; still the current running was not dangerously strong, for the river-bed comes up in a ridge, too high for much water to come over at this season of the year; but in the wet season this must be one of the worst places. This ridge of rock runs two-thirds across the Ogowé, leaving a narrow deep channel by the north bank. When we had got our canoe over the ridge, mostly by standing in the water and lifting her, we found the water deep and fairly quiet.
On the north bank we passed by the entrance of the Okana River. Its mouth is narrow, but, the natives told me, always deep, even in the height of the dry season. It is a very considerable river, running inland to the N.N.E. Little is known about it, save that it is narrowed into a ravine course above which it expands again; the banks of it are thickly populated by Fans, who send down a considerable trade, and have an evil reputation. In the main stream of the Ogowé below the Okana's entrance, is a long rocky island called Shandi. When we were getting over our ridge and paddling about the Okana's entrance my ears recognised a new sound. The rush and roar of the Ogowé we knew well enough, and could locate which particular obstacle to his headlong course
