From this point our kind friend Mr. Frederic Warrington returned with his followers to the town, and we were left to ourselves. We then turned off from the road, and entered the fine date-plantation of Zenzúr, celebrated in the fourteenth century, as one of the finest districts of Barbary, by the Sheikh eʾ Tijáni, passing by a great magazine of corn, and a mouldering clay-built castle, in which were quartered a body of horsemen of the Urshefána. Fine olive-trees pleasingly alternated with the palm-grove, while the borders of the broad sandy paths were neatly fenced with the _Cactus opuntia_. Having passed our former place of encampment in Sayáda, we were agreeably surprised to see at the western end of the plantation a few new gardens in course of formation; for there is a tax, levied not on the produce of the tree, but on the tree itself, which naturally stands in the way of new plantations. Having halted for a short time at noon near the little oasis of Sidi Ghár, where the ground was beautifully adorned with a profusion of lilies; and having passed Jedaim, we encamped towards evening in the wide courtyard of the Kasr Gamúda, where we were kindly received by the Kaimakám Mustapha Bey, whom I was providentially destined to meet twice again, viz. on my outset from, and on my final return to, Fezzan. The whole plantation of Zawíya, of which Gamúda forms a part, is said to contain a hundred and thirty thousand palm-trees. Ibrahim gave me an interesting account to-day of Negroland. Though a native of Bagirmi, he had rambled much about Mandara, and spoke enthusiastically of the large and strong mountain-town Karawa, his report of which I afterwards found quite true; of the town of Mendif, situated at the foot of the great mountain of the same name; and of Mora, which he represented as very unsafe on account of bands of robbers,—a report which has been entirely confirmed by Mr. Vogel. Our chief interest at that time was concentrated upon Mandara, which was then supposed to be the beginning of the mountainous zone of Central Africa.