After leaving Dumo and Sessé north of us, we had a boundless horizon of water on the east, while on the west stretched a crescent-shaped bay, bordered by a dense forest, ending south at Chawasimba Point. From here another broad bay extends southwards, and is terminated by the northernmost headland of Uzongora. Into this bay issues the Alexandra Nile in one powerful deep stream, which, from its volume and dark iron colour, may be traced several miles out. At its mouth it is about 150 yards wide, and at two miles above narrows to about 100 yards. We attempted to ascend higher, but the current was so strong that we made but slow progress, and after an ascent of three miles were obliged to abandon it. The plain on either side has a breadth of from five to ten miles, which during the rainy season is inundated throughout its whole extent. The deepest soundings we obtained were 85 feet. I know no other river to equal this in magnitude among the affluents of the Victoria Nyanza. The Shimeeyu river thus becomes the second largest affluent of the lake, and the two united would form a river equal to that which has its exit by the Ripon Falls. The Waganda Watongolehs, Sentum and Sentageya, call the Alexandra Nile the “Mother of the River at Jinja,” or the Ripon Falls. The Alexandra Nile constitutes a natural boundary between the sovereignty of Uganda and its subject kingdoms of Karagwé and Uzongora, which begin south of the river. The plain of the Alexandra stretches south a few miles to an irregular line of grassy and treeless mountains, which are the characteristics of the fine pastoral countries of Uzongora and Karagwé. At Lupassi Point the mountains project steeply, almost cliff-like, into the lake, with heights varying from 200 feet to 500 feet. The steep slopes bristle at many points with grey gneiss rocks— massy débris from the mountain brows. Near this point I discovered a stream which had a fall of 3 feet issuing from an orifice in a rocky cliff, though above it there was not the faintest sign of a watercourse. In the gullies and clefts of the cliff-sides most beautiful ferns abounded. I managed to climb to the top of the bluffs, and to my surprise overlooked a plateau, with a grandly rolling surface, covered with pasture and almost treeless, except near the villages, where grew dense groves of bananas. Further west, however, the plateau heaves upwards into mountain masses of the same naked character. Looking towards the east, directly in front of North Uzongora, stretches an apparently illimitable silvery sea; but towards the south one or two lofty islands are visible, situated about twenty-five miles from the mainland, serene and royal in their lone exclusiveness.