After having rode along by the date groves, and well built peasants houses, for about half an hour from Derr, we ascended the eastern mountain, the road along the river side being interrupted by the rocks. On the top of the mountain is a wide plain, covered with small fragments of loose sand-stone; and bordered on the east, at about two hours distance, by a higher range of mountains. We continued along this plain in the direction of W. S. W., until two hours and a half from Derr, when we descended again to the banks of the river, near the village Kette (قتّه), where we crossed the dry bed of a branch of the stream, and alighted on an island, at the tent of my guide, where I remained for the night. These people, who all speak Arabic as well as the Nouba language, are quite black, but have nothing of the Negro features. The men generally go naked, except a rag twisted round their middle; the women have a coarse shirt thrown about them. Both sexes suffer the hair of the head to grow; they cut it above the neck, and twist it all over in thin ringlets, in a way similar to that of the Arab of Souakin, whose portrait is given by Mr. Salt in Lord Valentia’s Travels. Their hair is very thick, but not woolly; the men never comb it, but the women sometimes do; the latter wear on the back part of the head, ringlets, or a small ornament, made of mother of pearl and Venetian glass beads. Both men and women grease their head and neck with butter whenever they can afford it; this custom answers two purposes; it refreshes the skin heated by the sun, and keeps off vermin. The young boys go quite naked; but the grown up girls tie round their waist a string of leather tassels, much resembling the feather ornaments worn for a like purpose by the south sea islanders. _March 3d._ I sent my guide back to Derr, to purchase more Dhourra, in order that we might give some of it to the camels, in those places where no wild herbs grow; and on his return we set out. Our road lay along a grove of date trees, and an uninterrupted row of houses, for two hours, when the perpendicular rock reached close to the river. At the height of about sixty or eighty feet above the footpath, I observed from below, the entrance to an apartment hewn in the rock, but without any road leading to it, the rock being there quite perpendicular. In like manner I have seen sepulchres cut in the rock of Wady Mousa in Arabia Petræa, which can only be approached by means of ladders, forty or fifty feet in height. In two hours and a half we reached the castle of Ibrim (ابريم), which is now completely in ruins, the Mamelouks having sustained a siege in it last year, and in their turn besieged the troops of Ibrahim Beg, in the course of which operations, the walls were battered with the few cannon that were found in the castle, and many of the houses of the village levelled with the ground.