Having from hence made a stretch of about ten miles in the afternoon, and halted for nearly four hours at sunset, we started again for a wearisome night’s march, deviating very considerably from our former track; and after a march of a little more than eighteen miles, the latter part over a difficult range of sand hills, we reached in the morning the well of Zaw-kurá in a dreadfully fatigued state, and with the loss of four camels; but it was cheering to find that the locality—a vale richly adorned with siwák, or _Capparis sodata_, afforded some relief not only to the body but even to the mind. We here met with a small caravan of Tebu, natives of the very ancient village of Ágherim or Ághram, the place of which I have spoken on a former occasion[54], and which lies three days north-west from here by way of Yawi. Being on their road to Bórnu, they were anxious to exchange their camels for mine, the latter being accustomed to the climate of Bórnu whither they were going. Such an exchange is certainly advisable to travellers proceeding in either direction, in the event of the animals of each party being equally good; but, on the one hand, I wanted too badly the few camels which had withstood the fatigue, and, on the other, those of these people were too poor to allow me to accept their offer; and in consequence, they had to load the five horses which they had with them with water-skins. These people gave us the important information that the ghazzia of the Tawárek had returned from Tibésti, having made only a small booty of forty camels and thirty slaves, on account of the Tebu having been on their guard, although they threatened to return at some future period. We remained here the following day, enjoying the repose of which we stood so much in need. A strong wind had been blowing all night; but the heat, at two o’clock in the afternoon, reached its usual elevation of 108° in the best shade. [Sidenote: Monday, June 11th.] We started again in the afternoon, winding round the south-eastern edge of the considerable mountain group to which the vale is indebted for its existence, and having on our right sandy downs. Just at the spot where we left the small oasis, known to the traders of the desert as Zaw- kanwa, on our left, we fell in with the footsteps of a small party, when, supposing them to be marauders, we followed them up for awhile, till we had convinced ourselves that they were people in search of a runaway slave. Pursuing then our march altogether about sixteen miles, we halted at nine o’clock in the evening; but started again at midnight, and after a march of fourteen miles, reached Muskátenu, the southernmost limit of the oasis of Kawár, although nothing but an inconsiderable shallow depression, full of marl and alum.