By observation, 1 determined the latitude of my camp at Obbo to be 4 degrees 02' N., 32 degrees 31' long. E., and the general elevation of the country 3,674 feet above the sea, the temperature about 76 degrees F. The altitude of Latooka was 2,236 feet above the sea level: thus we were, at Obbo, upon an elevated plateau, 1,438 feet above the general level of the country on the east of the mountain range. The climate would be healthy were the country sufficiently populated to war successfully against nature; but the rainfall continuing during ten months of the year, from February to the end of November, and the soil being extremely fertile, the increase of vegetation is too rapid, and the scanty population are hemmed in and overpowered by superabundant herbage. This mass of foliage, and grasses of ten feet in height interwoven with creeping plants and wild grape-vines, is perfectly impenetrable to man, and forms a vast jungle, inhabited by elephants, rhinoceros, and buffaloes, whose ponderous strength alone can overcome it. There are few antelopes, as those animals dislike the grass jungles, in which they have no protection against the lion or the leopard, as such beasts of prey can approach them unseen. In the month of January the grass is sufficiently dry to burn, but even at that period there is a quantity of fresh green grass growing between the withered stems; thus the firing of the prairies does not absolutely clear the country, but merely consumes the dry matter, and leaves a ruin of charred herbage, rendered so tough by the burning, that it is quite impossible to ride without cutting the skin from the horse's shins and shoulders. Altogether, it is a most uninteresting country, as there is no possibility of traversing it except by the narrow footpaths made by the natives. The chief of Obbo came to meet us with several of his head men. He was an extraordinary-looking man, about fifty-eight or sixty years of age; but, far from possessing the dignity usually belonging to a grey head, he acted the buffoon for our amusement, and might have been a clown in a pantomime. The heavy storm having cleared, the nogaras beat, and our entertaining friend determined upon a grand dance; pipes and flutes were soon heard gathering from all quarters, horns brayed, and numbers of men and women began to collect in crowds, while old Katchiba, the chief, in a state of great excitement, gave orders for the entertainment.