On the 25th March, 1819, the travellers left Tripoli with Mahommed el Moukni, Bey of Fezzan, who is called sultan by his subjects. Protected by this escort, Ritchie and Lyon reached Murzuk without molestation, but there the former died on the 2nd November, worn out by the fatigue and privations of the journey across the desert. Lyon, who was ill for some time from the same causes, recovered soon enough to foil the designs of the sultan, who counting on his death, had already begun to take possession of his property, and also of Ritchie's. The captain could not penetrate beyond the southern boundaries of Fezzan, but he had time to collect a good deal of valuable information about the chief towns of that province and the language of its inhabitants. To him we likewise owe the first authentic details of the religion, customs, language, and extraordinary costumes of the Tuarick Arabs, a wild tribe inhabiting the Great Sahara desert. Captain Lyon's narrative also contains a good deal of interesting information collected by himself on Bornou, Wadai, and the Soudan, although he was unable to visit those places in person. The results obtained did not by any means satisfy the English Government, which was most eager to open up the riches of the interior to its merchants. Consequently the authorities received favourably the proposals made by Dr. Walter Oudney, a Scotchman, whose enthusiasm had been aroused by the travels of Mungo Park. This Dr. Oudney was a friend of Hugh Clapperton, a lieutenant in the Navy, three years his senior, who had distinguished himself in Canada and elsewhere, but had been thrown out of employment and reduced to half-pay by the peace of 1815. Hearing of Oudney's scheme, Clapperton at once determined to join him in it, and Oudney begged the minister to allow him the aid of that enterprising officer, whose special knowledge would be of great assistance. Lord Bathurst made no objection, and the two friends, after receiving minute instructions, embarked for Tripoli, where they ascertained that Major Denham was to take the command of their expedition. Denham was born in London on the 31st December, 1783, and began life as an articled pupil to a country lawyer. As an attorney's clerk he found his duties so irksome and so little suited to his daring spirit that his longing for adventure soon led him to enlist in a regiment bound for Spain. Until 1815 he remained with the army, but after the peace he employed his leisure in visiting France and Italy. Denham, eager to obtain distinction, had chosen the career which would best enable him to achieve it, even at the risk of his life, and he now resolved to become an explorer. With him to think was to act. He had asked the minister to commission him to go to Timbuctoo by the route Laing afterwards took when he heard of the expedition under Clapperton and Oudney; and he now begged to be allowed to join them.