Started early: the character of the country continued the same as yesterday, and presented beautiful specimens of the mimosa, here breaking down from age, at another place interwoven with creepers, one species of which produces the red juicy fruit called “fito” by the Kanúri, and has been mentioned by me before. It was nearly eight o’clock when, proceeding in groups, two of our horsemen, on passing near a very large and thick gherret, suddenly halted, and with loud cries hastened back to us. We approached the spot, and saw a very large snake hanging in a threatening attitude from the branches of the tree: on seeing us it tried to hide itself; but after firing several balls, it fell down, and we cut off its head. It measured 18 feet 7 inches in length, and at the thickest part 5 inches in diameter, and was of a beautifully variegated colour. Two natives, who had attached themselves to our troop the day before, cut it open and took out the fat, which they said was excellent. The ride was truly interesting; but by degrees it became too much for me, and after seven hours’ march I was so utterly exhausted as to be obliged to halt, and lie down. Most of the Arabs remained with us; others, with ʿAli ben ʿAisa, went on to the well. When we pursued our march in the afternoon, the country for the first three hours was more level, but then became very hilly; and at five o’clock we ascended a considerable elevation to our left, the highest point in the whole country, but perhaps not more than 600 or 700 feet above the level of the Tsád. From here we crossed two very pretty valleys, or dells, especially the second one, where there were very curious hilly projections of a calcareous stone. But these valleys were very poor indeed, in comparison with the valley or hénderi Fóyo, situated at some distance from the well where we encamped for the night; for its bottom presented one uninterrupted mass of vegetation, impenetrable in many spots. Here the botanist might be sure to find some new species, although the principal trees were the kúrna (_Cornus_), serrákh, úm el barka, or _Mimosa Nilotica_, hajilíj, or _Balanites_, and the talha, _M. ferruginea_, but all interwoven with creepers, and offering the most delightful shade. These valleys, which afford the only watering-places, must of course be very dangerous during the night, on account of the wild beasts, principally lions, of which there are great numbers hereabouts. Here our companions received a messenger from Ghét, the young chief of the Welád Slimán. [Sidenote: Tuesday, Sept. 30th.]