Adams, however, fairly admitted that he knew nothing about it, and notwithstanding the surprise of many of his examiners, he could not be brought to acknowledge that he had heard the name even once mentioned at Timbuctoo.

All that he recollected was, that a river Joliba had been spoken of at Tudenny, where it was described as lying in the direction of Bambarra.
They who recollect Major Rennell's remarks respecting the Niger, in his Geographical Illustrations, will not be much surprised that Adams should not hear of the Joliba, from the natives of Timbuctoo.

At that point of its course, the river is doubtless known by another name, and if the Joliba were spoken of at all, it would probably be accompanied, as Adams states, with some mention of Bambarra, which may be presumed to be the last country eastward, in which the Niger retains its Mandingo name..