This statement bears on the face of it a certain degree of improbability; but it loses that character when it is considered that Timbuctoo, although it is become, in consequence of its frontier situation, the port, as it were, of the caravans from the north, which could not return across the desert the same season, if they were to penetrate deeper into Soudan, is yet, with respect to the trade itself, probably only the point whence it diverges to Houssa, Tuarick, &c.

on the east, and to Walet, Jinnie, and Sego, on the west and south, and not the mart where the merchandise of the caravans is sold in detail.

Such Moors, therefore, as did not return to Barbary with the returning caravan, but remained in Soudan until the following season, might be expected to follow their trade to the larger marts of the interior, and to return to Timbuctoo only to meet the next winter's caravans.

Adams arriving at Timbuctoo in February, and departing in June, might therefore miss both the caravans themselves and the traders, who remained behind in Soudan; and, on the same principle, Park might find Moors carrying on an active trade in the summer at Sansanding, and yet there might not be one at Timbuctoo.
Adams never proceeded to the southward of Timbuctoo, further than about two miles from the town, to the mountains before spoken of; he never saw the river Joliba or Niger, though he had heard mention made of it.

He was told at Tudenny, that the river lay between that place and Bambarra.
This apparently unimportant passage, affords on examination a strong presumption in favour of the truth and simplicity of this part of Adams' narrative.
In the course of his examinations, almost every new inquirer questioned him respecting the Joliba or Niger, and he could not fail to observe, that because he had been at Timbuctoo, he was expected, as a matter of course, either to have seen, or at least frequently to have heard of that celebrated river.