Khabir, خَبير) to protect the caravan from such extortions. No caravan can cross the desert in safety without being accompanied by some of the Ababde, and although many of the Fellah merchants perfectly know the road, they never venture to perform it alone. Our assailants retreated after a long parley, which succeeded the fight; and although we had at first intended to remain at Abou Adjadj for the night, our guides now thought it adviseable to push further on, because they were afraid that the opposite party might send during the night for a reinforcement of men from their village. We therefore rode three hours farther over a rocky ground until we arrived in a wide valley called Wady Houd (وادي هود), where we halted. During the whole of this afternoon’s march we had observed among the barren granite rocks, great quantities of locusts. _March 5th._ Wady Houd is a broad valley full of shrubs and pasturage, bordered on both sides by rocks of fine granite, similar to those of Assouan and the Cataract. We pursued our road for two hours along the valley; and at the end of three hours march came to sandrocks intersected by layers of quartz. We then ascended a slightly sloping plain, and at the end of four hours entered a wide sandy valley, in which we continued in a direction, S. W. by S. for several hours, until we reached, after about seven hours march, a narrow Wady called Om el Hebal (اُم الحبال), or the mother of ropes; so called from its numerous windings. Here we halted after a day’s march of about seven hours and a half. The Wady is full of thorny trees of the acacia species, the dark-green leaves of which are in singular unison with the surrounding granite rocks, the surface of which is smooth and shining, and of the deepest black. The valley is in few places more than sixty yards across; the highest summits of the rocks, which are every where steep cliffs, may be about two or three hundred feet above the level ground. This evening we lighted our fires with the dried dung of the camels that had rested here before; indeed we seldom halted in the evening without finding fuel of this kind, for the traders rarely go out of the accustomed track, nor can they choose their resting places at random, being fixed to those spots where there is some pasturage of herbs and shrubs, or at least some acacia trees, upon the leaves and branches of which their camels may feed for a few hours in the evening. I found much less order at the encamping of this caravan, than I had observed among other caravans in the Eastern Desert. Our party consisted of thirty nine loaded camels, thirty five asses, and about eighty men, and it was divided into a dozen different families or messes, each of which on the halting ground formed a separate _bivouac_. We had two men from Assouan, the others were from Daraou, Klit, and Esne, and a few from Gous, and Farshiout. People from Siout seldom travel this road. Although