Interesting as his journey was, it is impossible to describe the various places he visited or the adventures he met with. Day after day he travelled on, sometimes detained for weeks and months together, at one town or another, though he was never idle, always employing himself in gaining information, or in studying the language of the district through which he was to pass. On the 19th of June he was close to the Niger, and hoped that the next day he might behold with his own eyes that great river of Western Africa which has caused such immense curiosity in Europe, and the upper part of the large eastern branch of which he had himself discovered. Elated with such feelings, he set out early the next morning, and, after a march of two hours through a rocky wilderness covered with dense bushes, he obtained the first sight of the river, and in another hour reached the place of embarkation, opposite the town of Say. Here he beheld, in a noble, unbroken stream, the mighty Niger gliding along in a north-north-east and south-south-west direction, though at this spot, owing to being hemmed in by rocky banks, only about seven hundred yards broad. It had been seen by Mungo Park flowing eastward, and it was therefore, till the Landers descended it, supposed that it might possibly make its way into some vast lake in Central Africa. On the flatter shore opposite, a large town lay spread out, the low ramparts and huts of which were picturesquely overtopped by numbers of slender dum-palms. After waiting some time the boats he had sent for, which were about forty feet in length and four to five in width, arrived. They were formed by hollowing out two trunks of trees, which were sewn together in the centre. His camels, horses, people, and luggage having crossed in safety, he followed in the afternoon, intending to survey the course of the river between the point where it has become well-known by the labours of Mungo Park, Caillie, and the Landers. The language spoken here, the Songhay, differs materially from that with which he was acquainted, and he therefore was less able to converse with the people than he had been before. Quitting Say, he left the Niger behind him, or rather on his right-hand side, proceeding north-west towards Timbuctoo. The country on this side of the Niger is thickly inhabited, and he passed numerous towns and villages on his way. At the village of Namantugu he met an Arab from the west, called Wallati, who undertook to escort him safely to the town of Timbuctoo. He was a handsome fellow. His dress consisted of a long black gown, with a black shawl wound round his head, and he moved along at a solemn pace; he reminded the doctor of the servants of the Inquisition. The inhabitants of this place were clothed in the purest white, even the little children wearing round their heads turbans composed of strips of white cotton.