Narrative of travels and discoveries in Northern and Central Africa, in the years 1822, 1823, and 1824

The narrative recounts an overland expedition from the North African coast deep into the Sahara and the regions surrounding Lake Chad and Bornou, detailing routes, camps, supplies, and the practical difficulties of travel. Daily journals record desert terrain, wells and wadis, passing caravans, and encounters with towns and diverse local peoples, with observations on dress, customs, and conversation. Separate excursions describe visits to Mandara, Loggun, and the eastern shores of the lake, including two unsuccessful attempts to complete its circuit. The account notes illness and the death of a travelling companion and is supplemented by translated letters, charts, and geographical and political observations.