The kafila for Mourzuk left Kouka on the 13th: several Arabs, who had determined on remaining here some time, took their departure in consequence of their fears of the bashaw’s visit. Nothing had arrived, and, in the absence of authentic intelligence, all was alarm and confusion, and reports of every kind arose: they said the kafila, which had been expected more than two months, could not be delayed from any other cause than the hostile intentions of the sultan: trusty persons were accordingly stationed at the commencement of the desert to give the earliest information of any thing approaching, and no assurances of ours had the least effect in calming the fears of the natives. Mr. Clapperton’s illness increased; and one night, while all were asleep, he made his way to the hut where the only servant slept who was not sick, begging for water; his inside, he said, was burning; the delirium had just then left him; he was too weak to return to his hut without the assistance of Columbus, who supported him in his arms; he was still dangerously ill; and four persons of our establishment, besides Doctor Oudney, were confined to their beds at this time with this same disorder: the symptoms of all were similar. Sep. 25.—After a most restless night, I rose by daylight, and taking my old negro, Barca, rode in the direction of Dowergoo. The harvest was abundant, and they had already begun to lop off the heads of the long gussub: the tamarind trees, which lose all their leaves at the commencement of the rains, were budding with great beauty, and had a bright carnation colour; the waters had already decreased very considerably; and the season appeared highly favourable for an expedition in some previously untrodden path: every thing else was, however, against the attempt; for, added to our poverty, I was the only one of our party capable of mounting a horse. On my return I visited my patients, for Doctor Oudney could not move from his hut; and the small-pox raged amongst the slaves of two of our friends, added to the fever of the season. Out of twelve slaves who were seized, two had died; and the only child of Mohamed-el-Wordy had now taken it from his slave. They are not ignorant of inoculation, and it is performed nearly in the same manner as amongst ourselves, by inserting the sharp point of the dagger, charged with the disease; they never give any medicine, but merely roll the invalid in a barracan, and lay him in a corner of the hut until the disorder takes a turn. The castor tree is found in this neighbourhood, and is commonly used as a medicine. There is also another tree, of which they either chew the blossom or steep it in water, which has the effect of an emetic.