19th Century Africa
- David Livingstone and the Victorian encounter with Africa. London: National Portrait Gallery, c1996. ("Published for the exhibition, David Livingstone and the Victorian Encounter with Africa, held at the National Portrait Gallery, London, from 22 March to 7 July 1996, and at the Scottish National Portrait Gallery, Edinburgh ... from 26 July to 6 October 1996")
- Denham, Dixon, Captain Clapperton, and the late Dr. Oudney. Narrative of travels and discoveries in Northern and Central Africa : in the years 1822, 1823, and 1824, extending across the Great Desert to the tenth degree of northern latitude, and from Kouka in Bornou, to Sackatoo, the capital of the Felatah empire. 2 vols. London : Darf Publishers, 1985.
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