It was not till the 4th of May that, in company with a Fezzan merchant, Kolo, he commenced his return journey, with a small caravan, towards Tripoli. At Barruwa they laid in a supply of dry, ill-smelling fish, which constitutes the most useful article of exchange in the Tebu country. The region to his right, over which he had previously passed, was now entirely covered with water from the overflowing of the Chad, which had submerged several villages.
He met with no unusual adventures during his long, tedious journey northward across the desert.
At Mourzouk he had the pleasure of meeting Mr Frederick Warrington. He here remained six days, discharging some of his servants, and among them his faithful Gatroni.
Some tribes of Arabs had here rebelled against the Turks, and he was in some danger while in their hands. Escaping, however, from them, he reached Tripoli in the middle of
August, and, embarking at the end of four days, arrived safely, on the 6th of September, in London.
Although much of the country he had passed over was already known, no previous African traveller more successfully encountered and overcame the difficulties and dangers of a journey through that region.
The most important result of his adventurous journey was the discovery of a large river, hitherto unknown, falling into the Chad from the south, and of the still larger affluent of the Quorra, the mighty Binue, which, rising in the far-off centre of the continent, flows through the province of Adamawa.
The courage and perseverance of Dr Barth, while for five years travelling many thousand miles, amidst hostile and savage tribes, in an enervating climate, frequently with unwholesome or insufficient food, having ever to keep his
