the largest headstream of the Benue, which descends from the neighbouring Ngaunderé Mountains. After the confluence the united stream, already 500 or 600 feet wide, winds westwards between sandstone hills rising many hundred feet above its bed, which at many points is obstructed by rocky ledges, rendering all

Fig-. 128. — Confluence of the Niger and Benoue.

navigation impossible in the dry season. But it is soon swollen by numerous affluents from the Wangara hills in the north, and from the south by the Faro (Paro), a copious stream descending from the still unexplored regions beyond Adamawa, and sweeping round the east foot of Mount Alantika, one of the