The talha-trees continued; but the herbage was principally limited to resú, an herb which has a very strong taste, and is not relished by camels for any length of time. The green strip took an irregular, winding course, sometimes approaching the sand-hills which we had always on our left at a certain distance, sometimes keeping more to our right; and Músa, our grave but cheerful camel-driver, dwelt in terms of the highest praise on the great superiority of this wadi, which he said is joined by as many as a hundred smaller branches. It evidently forms the natural highroad between Fezzán and the western desert, and about a month ago must have exhibited a more varied aspect, enlivened as it then was by a considerable torrent sweeping along it. In the afternoon we saw several spots where the eddying stream had formed itself a bed about five feet deep, and had turned up the ground all around; the crust of mire which covered the bed of the torrent had not yet dried. We encamped on a pleasant spot called Hamáwa, without pitching our tent, so delighted were we to enjoy the fresh air of the desert. Here we were joined by a man from Tasáwa, who wanted to seize a debtor, who had attached himself to Bóro’s party in order to make his escape into Sudán—a practice very common with the people of Fezzán. By repeated measuring with our chain, we had found that, on tolerably even ground, our ordinary rate as the Tawárek travel was half an English geographical mile in thirteen minutes. It is the general custom of these people, who do not allow their camels to feed on the march, to leave them the whole night on the pasture, and not to fetch them till morning, for which reason they never start very early, and often at a rather late hour. [Sidenote: Friday, June 28th.]