Narrative of Travels and Dscoveries 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 to Bornou, to Sackatoo, the capital of the Felatah empire.

London: John Murray, 1828.

Third edition. 2 vols, 8vo. pp. xii, [4], 471, [1]; pp. iv, 467, [1]; with 12 plates (one coloured) and 3 folding maps, several woodcut illustrations in the text, tissue-guards. Bound in contemporary calf with later spines, gilt, with double maroon labels, slight wear to extremities and scuffs to sides. marginal stain to frontis in v2, occasional spots of foxing mainly on guards. Endpapers and edges of text black marbled. A solid and attractive set. A first edition was published in 1826; this edition, the third, appeared two years later. Although the titlepage makes reference merely to 'the late Doctor Oudney', the truth was that Clapperton himself had died the previous year while being detained in the Fulani capital of Sokoto, and that Denham would soon join his erstwhile companions, when he succumbed to malaria in June 1828 in the British colony of Sierra Leone.
An account of the attempt to trace the course of the Niger river. Denham, Clapperton and Dr Oudney were dispatched on an expedition in 1822 to approach the river from Tripoli. A veteran of Waterloo and a friend of the Duke of Wellington, Denham was given command but treated his colleagues with such contempt that he soured relations between them from the start. After being delayed at Murzuq, the party crossed the Sahara and reached Kuka (Kukawa) in the kingdom of Bornu (later Nigeria) in February 1823. Here the party separated, with Clapperton and Oudney making for Kano and Denham investigating Lake Chad. Following Oudney's death, Denham and Clapperton undertook a terrible desert crossing back to Tripoli and reached England in June 1825. Although it failed to find the Niger, the expedition opened much of north central Africa to European knowledge.