On the 3rd May, Clapperton took leave of the sultan. This time there was a good deal of delay before he was admitted to an audience. Bello was alone, and gave the traveller a letter for the King of England, with many expressions of friendship towards the country of his visitor, reiterating his wish to open commercial relations with it and begging him to let him have a letter to say when the English expedition promised by Clapperton would arrive on the coast of Africa. Clapperton returned by the route by which he had come, arriving on the 8th of July at Kouka, where he rejoined Denham. He had brought with him an Arab manuscript containing a geographical and historical picture of the kingdom of Takrour, governed by Mahommed Bello of Houssa, author of the manuscript. He himself had not only collected much valuable information on the geology and botany of Bornou and Houssa, but also drawn up a vocabulary of the languages of Begharmi, Mandara, Bornou, Houssa, and Timbuctoo. The results of the expedition were therefore considerable. The Fellatahs had been heard of for the first time, and their identity with the Fans had been ascertained by Clapperton in his second journey. It had been proved that these Fellatahs had created a vast empire in the north and west of Africa, and also that beyond a doubt they did not belong to the negro race. The study of their language, and its resemblance to certain idioms not of African origin, will some day throw a light on the migration of races. Lastly, Lake Tchad had been discovered, and though not entirely examined, the greater part of its shores had been explored. It had been ascertained to have two tributaries: the Yeou, part of whose course had been traced, whilst its source had been pointed out by the natives, and the Shari, the mouth and lower portion of which had been carefully examined by Denham. With regard to the Niger, the information collected by Clapperton from the natives was still very contradictory, but the balance of evidence was in favour of its flowing into the Gulf of Benin. However, Clapperton intended, after a short rest in England, to return to Africa, and landing on the western coast make his way up the Kouara or Djoliba as the natives call the Niger; to set at rest once for all the dispute as to whether that river was or was not identical with the Nile; to connect his new discoveries with those of Denham, and lastly to cross Africa, taking a diagonal course from Tripoli to the Gulf of Benin. II.