(Sir W. Garstin G.C.M.G., April, 1897.)

No account of the Dongola province would be complete without some mention of this great depression which extends through the Western Desert from Hafir to Debba, a distance of some 125 miles. It is chiefly inhabited by the Kababish tribe of Arabs, who use it for grazing their flocks; and it contains numerous wells.

It has been thought that this depression might possibly be utilised as a storage reservoir or as a means for escaping the surplus water in an excessive flood. It is very doubtful whether it could thus be made use of. The wadi appears really to come to an end a few miles north of Hafir, and the nearest point to the river to be at a distance of some 10 miles.

The lowest portions of the Wadi El Gab must be considerably lower than the level of the river in flood, but by how much it is impossible, without levels, to say.

On leaving the Nile, in the direction of this valley, the country rises rapidly for some 4 miles. It then begins to fall away from the river, in a succession of terraces, until a total of about 10 miles have been traversed. The real edge of the wadi then commences. Its width at the northern end appears to be about 5 miles. The western edge is filled up with drift sand, which is gradually covering the palm trees. A well, measured at the Oasis of Lagia, showed the water level to be some 9 feet below the ground surface. The water was sweet and of good quality.

It would be useful to have the whole of this depression carefully levelled and surveyed. The area covered by it is very large, and supposing it were possible to fill it with water, the loss from evaporation would certainly be very great.

Section 3.—“Bayuda Desert.”

General.The tract of country north of Kordofan, i.e., north of N. lat. 16° (approximately), bounded on the north and east by the Nile and on the west by the Wadi Melh has been called the Bayuda Desert, though this name is not applied to it by the Arabs.

Inhabitants.It is inhabited by nomad Arabs, viz., on the east by the Kababish, chiefly the Omatto section under Sheikh Fadl Mula Wad Rekha; in the centre by the Hawawir, of which the Sauarab is the most important sub-tribe, under Sheikh Hassan Khalifa; and on the east by the Hassania, whose headquarters are at Jebel Gilif and Jakdul. In the extreme north, in the angle formed by the bend of the Nile, are the Monasir, who are, however, a sedentary tribe. These above-mentioned nomads wander a great deal according to the grazing, on the existence or absence of which, in many cases, depends the fact of wells being open or not.