From Spaitla he proceeded to Muchtar and Musti, and then returning to Tugga, he went down the Bagrada to Tunis. From Tunis he again went to Spaitla, where he remained five days more, correcting and revising the drawings and memoranda which he had already made there. Passing Feriani, he came to a large lake, the Palus Tritonidis, now called the Lake of Marks, because there is in it a row of large trunks of palm-trees set up to guide travellers across it. "This was," says Bruce, "the most barren and unpleasant part of my journey in Africa: barren, not only from the nature of the soil, but by its having no remains of antiquity in the whole course of it." This desert scene was at last most agreeably and suddenly changed by the small river Triton, the water of which caused the adjacent country to be covered with all kinds of flowers and verdure. Bruce had now reached the Lesser Syrtis. He here turned to visit El Gemme, where there had been a large and perfect amphitheatre, until Mohammed Bey blew up a part of it to prevent its being occupied as a fortress by the Arabs. Continuing along the coast to Susa, Bruce once more arrived at Tunis, possessing drawings of what he considered "to be all the antiquities worth notice in the territories of Tunis and Algiers." Notwithstanding the great heat to which he had been subjected, his health was good, and he had hitherto met with no accident whatever: but he had now a very serious undertaking to perform, which was to cross the desert to Tripoli; and the Bey of Tunis being at enmity with the Basha of Tripoli, could give him no letters of introduction. He accordingly took leave of the bey and proceeded to Gerba, the island of the Lotophagi, where the Bey of Tunis, with his usual munificence, had prepared for him a house, with every sort of refreshment. On this coast there is no sort of fruit whatever: neither bush, nor tree, nor verdure of any kind, excepting the short grass that separates this country from the moving sands of the desert. About four days' journey from Tripoli, Bruce met the Emir Hadji, conducting a caravan of pilgrims from Fez in Morocco, across the whole of Africa, to Mecca--that is, from the Atlantic Ocean to the western banks of the Red Sea. The caravan consisted of about three thousand men, with an immense number of camels laden with merchandise, water, flour, and food, for the hadjis or pilgrims; and such a crowd of uncivilized beings, wildly traversing such a vast inhospitable desert, yet urged forward and supported by a principle of religion, formed a very extraordinary spectacle. They had scarcely passed when Bruce and his little party were assailed by a number of Arab horsemen, whom they repulsed with considerable difficulty, and with a loss of four men.