A travers le continent mysterieux: découverte des sources méridionales du Nil, circumnavigation du Lac Victoria et du Lac Tanganyika, descente du fleuve Livingstone ou Congo jusqu'a l'Atlantique
Vocabularies of the dialects spoken by different tribes of the natives inhabiting the coast of Africa, from Mosambique to the borders of Egypt, with a few others spoken in the interior of that continent
A voyage to Abyssinia and travels into the interior of that country, executed under the orders of the British government, in the years 1809 and 1810; in which are included, an account of the Portuguese settlements on the east coast of Africa, visited in the course of the voyage; and a concise narrative of late events in Arabia Felix; and some particulars respecting the aboriginal African tribes, extending from Mosambique to the borders of Egypt; together with vocabularies of their respective languages
Arab tales translated from the Swahili language into the Túgulu dialect of the Mákua language: together with comparative vocabularies of five dialects of the Mákua language
Die Suahili-Sprache, enthaltend Grammatik, Gespräche und Wörterverzeichnisse, mit einem Anhange: Sansibar-Arabisch, sowie Wörterverzeichnissen der Sprachen von Usambara, Bondeï, Unyamwezi und des Yao