At 10.30 the messenger having finished his breakfast, we left Injum. He gave me his horse to ride, as I could not get the old Wawa mare to go on without a great deal of beating. At noon halted at the side of a brook, to water the horses. Here end the hills and the pudding-stone of which they are composed, and the rocks are now a dark gray slate, which moulders away with the rains, the soil a strong blue clay, with deep gullies formed by the rains. At 1 left the brook: the country thickly wooded with tall trees, amongst which are a number of the acacia or mimosa, many of them thrown down by the elephants, for the purpose of feeding on the upper and tender branches. The traces of elephants, buffaloes, and the larger kind of antelopes called in Bornou _corigum_, are numerous. At 2.40 halted at a village of the Kumbrie, or Cambrie, a race of Kaffirs inhabiting the woods, on both sides of the river. They made a great difficulty in procuring me a drink of water, so I mounted and left them, and at 3.30 arrived at a branch of the Quorra, called the Menai, close to its junction with a second branch. The Menai is about twenty yards in breadth, and about two fathoms in depth; the current hardly perceptible, and the water dark and muddy; that of the branch into which it runs being about thirty yards in breadth, with a strong current, about three or four knots, throwing a back-water up the Menai. The island on the other side of it is low and swampy, and covered with high reeds; the colour of both the streams red and muddy, as if in flood; but the messenger, on my asking if this was the case, said no, that the river was now at its lowest mark, and pointing to a place on the opposite bank of the Menai, about fifteen feet above the present level, said the river rose to that height during the rains. The trees on both banks were close down to the water’s edge, and the branches were in the stream, and every now and then a branch would be broken off, and washed away by the strength of the current. From this, and the muddiness of the water, I concluded it was rising; but certainly the inhabitants must know best: had I not made inquiry, I should certainly have said it was rising. The canoe being on the other side of the Menai, the messenger stripped off his tobe, and swam over for it. After crossing and swimming the horses over, in about a quarter of an hour’s ride I entered the walls of Boussa, by the western gate. The walls appeared very extensive, and are at present under repair. Bands of male and female slaves, accompanied by drums and flutes, and singing in chorus, were passing to and from the river with water, to mix the clay they were building with. Each great man has his part of the wall to build, like the Jews when they built the walls of Jerusalem, every one opposite his own house.