Columbia subject headings:
Africa, West--Description and travel.
Indigenous peoples--Africa, West.
Niger Expedition (1841-1842)
Niger River--Description and travel.
Nigeria--Description and travel.
Harvard subject headings:
Africa, West--Description and travel.
Indigenous peoples--Africa, West.
Niger Expedition (1841-1842)
Niger River expedition (1841)
Niger River--Description and travel.
Nigeria--Description and travel.
Princeton subject headings:
Africa, West--Description and travel.
Indigenous peoples--Africa, West.
Niger Expedition (1841-1842)
Niger River--Description and travel.
Nigeria--Description and travel.