[TRAVEL & EXPLORATION] -- DENHAM, Dixon, Major (1786-1828), and Captain Hugh CLAPPERTON (1788-1827). 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 Fellatah Empire. London: John Murray, 1826.