From the date of his arrival until the end of June, 1869, he remained at Ujiji, whence he dated those letters which, though the outside world still doubted his being alive, satisfied the minds of the Royal Geographical people, and his intimate friends, that he still existed, and that Musa’a tale was the false though ingenious fabrication of a cowardly deserter.  It was during this time that the thought occurred to him of sailing around the Lake Tanganika, but the Arabs and natives were so bent upon fleecing him that, had he undertaken it, the remainder or his goods would not have enabled him to explore the central line of drainage, the initial point of which he found far south of Cazembe’s in about latitude 11 degrees, in the river called Chambezi.

In the days when tired Captain Burton was resting in Ujiji, after his march from the coast near Zanzibar, the land to which Livingstone, on his departure from Ujiji, bent his steps was unknown to the Arabs save by vague report.  Messrs. Burton and Speke never heard of it, it seems.  Speke, who was the geographer of Burton’s Expedition, heard of a place called Urua, which he placed on his map, according to the general direction indicated by the Arabs; but the most enterprising of the Arabs, in their search after ivory, only touched the frontiers of Rua, as, the natives and Livingstone call it; for Rua is an immense country, with a length of six degrees of latitude, and as yet an undefined breadth from east to west.

At the end of June, 1869, Livingstone quitted Ujiji and crossed over to Uguhha, on the western shore, for his last and greatest series of explorations; the result of which was the further discovery of a lake of considerable magnitude connected with Moero by the large river called the Lualaba, and which was a continuation of the chain of lakes he had previously discovered.

From the port of Uguhha he set off, in company with a body of traders, in an almost direct westerly course, for the country of Urua.  Fifteen days’ march brought them to Bambarre, the first important ivory depot in Manyema, or, as the natives pronounce it, Manyuema.  For nearly six months he was detained at Bambarre from ulcers in the feet, which discharged bloody ichor as soon as he set them on the ground.  When recovered, he set off in a northerly direction, and after several days came to a broad lacustrine river, called the Lualaba, flowing northward and westward, and in some places southward, in a most confusing way.  The river was from one to three miles broad.  By exceeding pertinacity he contrived to follow its erratic course, until he saw the Lualaba enter the narrow, long lake of Kamolondo, in about latitude 6 degrees 30 minutes.  Retracing this to the south, he came to the point where he had seen the Luapula enter Lake Moero.