The 5th Cataract, or Shellal el Homar, 24 miles from El Bagara, is a system of tortuous rapids running through irregular dangerous rocks. It is formed by a ridge of black rocks, broken up into islands, of which the main one is termed Draka. Here there are really two distinct cataracts—one to the north, which has two rather dangerous and difficult passages, in consequence of the banks being covered with brushwood rocks and mimosa trees, which prevent the tow rope being employed; the other to the south, called Shellal el Homar. These cataracts, like those that precede them, are dangerous and impracticable during low water. They were successfully surmounted by the gunboats of the Nile Expedition in September, 1897 (high Nile). From the 5th Cataract, where the Dar Robatab is quitted and the Dar Berber commences, a path exists on both banks for 30 miles to the town of Berber. About half-way the nature of the soil changes from the primitive desert to sandstone, and ranges of hills formed of the latter begin to show themselves on both banks, but more prominently on the western shore, where, opposite El Hasa, the edge of a stony plateau, about 100 feet high, known as Jebel Nakam, advances to within 200 yards of the water’s edge; thence the road follows the western shore at a distance of about ¾ of a mile, the intervening land being well cultivated and acacias and “dom” palms fairly abundant. On the right bank, although a fringe of acacias borders the Nile, cultivation is almost entirely absent except in the immediate neighbourhood of the villages, which are met at frequent intervals; and the country, after entering the sandstone formation, consists of nothing but one vast desert plain extending as far as the eye can reach. In view of the railway running the whole way along the river bank from Abu Hamed to Khartoum the description of the itineraries along the banks is omitted. The reader who desires such is referred to N.O. (pp. 63-70). [Sidenote: Berber.] Berber, 131 miles from Abu Hamed (for description, _vide_ Chap. III, p. 85). Between Berber and the Atbara (20 miles) the cultivation improves, and a fairly broad band runs parallel to the east bank of the river; the inhabitants in this reach are fairly numerous. The current here runs at the rate of from 2 to 3½ miles per hour; but above it, where the river increases in width, a proportional decrease in the rate of the stream takes place, and it does not exceed 2 miles. [Sidenote: Atbara confluence.]