The stream had not long returned to its limits, as I soon convinced myself, when, wandering to its brink, I saw to the south of this embankment an expanse of water stretching far over the land, out of which the tops of the taller trees peeped forth like verdant islands. Beyond the inundation still older downs were visible, which are no longer disturbed by water. These heights and hills connected with each other in an extremely arbitrary manner, or lying scattered, and partly forming a manifold circumvolution of the white stream, are not perhaps remains of an old deposit from the river, but probably the product of alluvial soil and earth thrown up. The river acquires for itself, from its well-known fruitful qualities—the nature of the place being favourable, by means of the plants floating towards it—a green border, which mostly consists of bushes, whose roots, matted together, resist the action of the stream. These bushes retain the yearly deposited slime of the Nile, and continue to grow with the ascending ground. So, likewise, the sand driven in when the water is low, and the portion of earth thrown up by the violent squalls of wind, remain behind protected by the bushes. When the water is at its greatest possible height, this accumulation is chiefly covered with its fertilizing layer of slime; whilst by the pressure of the water and the particles forcing themselves upwards, it still becomes higher. The sandy earth deposited by every wind, and the roots of the bushes penetrating through the moist soil, increase the swell of this formation of hills, by the fall of their leaves and wood, as one may plainly see in the spheroid and parallel sites of the shores of the downs, which have been partly destroyed. In the interior beyond Mandera dwell the Kabbabish Arabs, a widely-spread Nomad race, possessing large droves of camels and horses, which they bring down from time to time to the shore to drink, and to supply themselves with drinkable water. This is the point of time at which Suliman Kashef is on the watch to extort tribute from them.