- Africa, Central--Description and travel (8)
- Schweinfurth, Georg August, 1836-1925--Journeys--Africa, Central (2)
- Indigenous peoples--Africa, Central (1)
- Livingstone, David, 1813-1873 (1)
- Plants--Africa, Central (1)
- Slave-trade--Africa (1)
- Stanley, Henry M. (Henry Morton), 1841-1904 (1)