A lengthy march under the deep twilight shadows of a great forest, which protected us from the hot sunbeams, brought us, on the next day, to a camp newly constructed by a party of Arabs from Ujiji, who had advanced thus far on their road to Unyanyembe, but, alarmed at the reports of the war between Mirambo and the Arabs, had returned. Our route was along the right bank of the Rugufu, a broad sluggish stream, well choked with the matete reeds and the papyrus. The tracks and the bois de vaches of buffaloes were numerous, and there were several indications of rhinoceros being near. In a deep clump of timber near this river we discovered a colony of bearded and leonine-looking monkeys. As we were about leaving our camp on the morning of the 28th a herd of buffalo walked deliberately into view. Silence was quickly restored, but not before the animals, to their great surprise, had discovered the danger which confronted them. We commenced stalking them, but we soon heard the thundering sound of their gallop, after which it becomes a useless task to follow them, with a long march in a wilderness before one. The road led on this day over immense sheets of sandstone and iron ore. The water was abominable, and scarce, and famine began to stare us in the face. We travelled for six hours, and had yet seen no sign of cultivation anywhere. According to my map we were yet two long marches from the Malagarazi--if Captain Burton had correctly laid down the position of the river; according to the natives' account, we should have arrived at the Malagarazi on this day. On the 29th we left our camp, and after a few minutes, we were in view of the sublimest, but ruggedest, scenes we had yet beheld in Africa. The country was cut up in all directions by deep, wild, and narrow ravines trending in all directions, but generally toward the north-west, while on either side rose enormous square masses of naked rock (sandstone), sometimes towering, and rounded, sometimes pyramidal, sometimes in truncated cones, sometimes in circular ridges, with sharp, rugged, naked backs, with but little vegetation anywhere visible, except it obtained a precarious tenure in the fissured crown of some gigantic hill-top, whither some soil had fallen, or at the base of the reddish ochre scarps which everywhere lifted their fronts to our view.