At the same time, Baudry on the _Dantec_ tacked about in search of the deep channel, taking frequent soundings. Any inaccuracies were guarded against by taking the mean draught of the two larger vessels, and constantly determining the position by astronomical observations. This system was invariably followed down to Ansongo, that is, for the whole navigable course of the Niger. Though we did not secure the accuracy of a regular survey, still to me it appeared quite enough; for the first vessels that might come after us, will possess an indication of the position of the deep channel relatively to the banks and their configuration, the distances from one point to another, the position of the villages, and the peculiarities of the soil, etc. Below Ansongo, in the region of the rapids, Baudry and I had to abandon all survey work, and devote our attention exclusively to the boats. Bluzet completed the map, which is of no practical value, as it is impossible to determine any navigable channel, especially for steamers, in those dangerous rapids. The only object of its existence is to prove that a navigable channel does not exist. So that all that can be done is to choose the least undesirable means of access to the Western Sudan from among the many that have been proposed. After passing the villages of Koa, Burrem and Bori, where the people came out in canoes with presents of goats, sheep, eggs and poultry, we arrived abreast of Kagha, about one o’clock on the 25th. The moment we reached the mouth of the creek which leads to it—for the village is not on the main stream, but a little inland—we were hailed from a canoe by a great giant with an intelligent face and woolly hair, forming a halo round his head, which was more picturesque than clean. He was a Kunta, knew French, had been in the villages of Mediné and Nioro, in the French Sudan, and even spoke a little Soninké, the maternal language of most of our coolies. He acted as pilot for us, but, in spite of all his efforts, we could not get up to Kagha, for there was not sufficient depth of water; so we had to pitch our camp at the foot of a little hill covered with dwarf palms rather more than a mile from the nearest huts. A deputation of the Kuntas of the village soon joined us, who told us that Sidi Hamet had arrived two days before with my letter for Aluatta; but the latter was from home, and no one knew exactly where to find him, nor if my missive had reached him. In fact, fifteen days before, a band of Kel Gossi, a Tuareg tribe whose territory is about the centre of the bend of the Niger, had carried off a hundred head of cattle belonging to the chief of the southern Kuntas; Aluatta had set off to overtake the raiders, and induce them in the name of Allah and Mahomet to restore their ill-gotten gains.