While waiting the Sultan’s arrival, Dr. Barth’s time was chiefly occupied in defending himself against the attacks of the large black ant (_Termes mordax_). One day, in particular, he maintained a long and desperate encounter with a host of these voracious little insects. In a thick unbroken column, about an inch broad, they had marched over the wall of the courtyard, and entering the hall where he abode both day and night, advanced right upon the store-room. But his couch being in their way, they immediately assailed his own person, and compelled him to decamp. Assisted by his servants, he then fell upon the bandits, killing all the stragglers and foragers, and burning the main body of the army as it proceeded on its way. But fresh legions arrived on the scene of war, and it took a struggle of two hours’ duration thoroughly to break up their lines, and put them to flight. The insects seemed to have been attracted by the corn which Dr. Barth had stored up. But it must be owned that, if inconvenient in one respect, their attacks are beneficial in another; for they destroy all kinds of vermin, mice included. And while they thus act as the “scavengers of the houses,” in many parts of Negroland they also render service through their very greediness in gathering what man would fain appropriate for himself. They lay in such considerable stores of corn, that the poor natives frequently dig out their holes in order to gain possession of their supplies. It was on the 3rd of July that the Sultan appeared before the walls of his capital, escorted by about eight hundred cavalry. At the head of the _cortége_ rode the lieutenant-governor, surrounded by a troop of cavaliers. Then came the Barma, followed by a man carrying a spear of ancient and peculiar shape, designed to represent the “fetish,” or idol of Kénga-Matáya, the original patrimony of the kings of Bagirmi. Next rode the Fácha, or commander-in-chief, who is the second person in the kingdom; and after him the Sultan himself, attired in a yellow burnous, and mounted on a grey charger, the points of which could hardly be seen owing to the amplitude of the war-trappings that hung about him. Nor was the head of his rider much more plainly visible, not only on account of the horsemen gathered round him, but more particularly owing to two umbrellas—one of green, the other of red—borne on each side of him by a couple of slaves.