On approaching the river _Beth_, we halted, to allow the baggage to cross, which was expeditiously conveyed in a large ferry-boat; the horses and mules were obliged to swim over, a spectacle curious and diverting enough. I passed over with the Governor; after which the boat went backwards and forwards till the whole of the troops were transported across the river, when we encamped, the side which we had quitted being occupied by another little army, headed by the Governor of another district. The two opposite camps had much the appearance of two hostile armies previous to a battle. This river very much resembles the _Po_ in Italy, and is perfectly navigable. On each side are immense fields of corn and rice, intersected by tracts of waste land covered with broom and heath, and spots of pasture-land on which large droves of camels graze. To prevent the camels from straying, they have one of their fore legs bent at the first joint, and tied up: they are attended by boys, who take them out early in the morning, and at night bring them back to the tents, before which each camel takes his place as regularly as our cows do in their stalls. The next morning we reached a castle, and a ruinous walled town, occupied by soldiers, and slaves, who look after the herds of mules belonging to the Emperor. It is situated on a hill, whence I had a prospect of the immense plain we had first traversed, upon which not a single tree is to be seen. About noon, on the sixth day, we approached a lofty mountain, which terminated this extensive plain, and formed the commencement of a chain of high hills, which we ascended and descended successively, and at length descried the large and populous city of Mequinez: we passed by a long aqueduct, a remnant of ancient architecture, and several Roman ruins, and reached one of the great gates of the town, where we were met by a strong detachment of soldiers commanded by the Governor, who, after the salutations and ceremonies usual on such occasions, escorted us to the palace of Eslawee, the Governor of Larache, where I was kindly received and most hospitably entertained by all his relations and friends.