Transcriber's note:
- pg [40] Changed: alway to: always
- pg [62] Changed: themeslves to: themselves
- pg [104] Changed: on he sandy bank to: the
- pg [194] Added period after: on the river
- pg [207] Added period after: but so it is
- pg [228] Added period after: explorer of Africa
- pg [241] Added period after: higher up the Niger
- pg [343] Changed reference to pg. 267 to: 207
- Added [Map] at the end of the List of illustrations