A voyage to the river Sierra-Leone [electronic resource] : on the coast of Africa; containing an account of the trade and productions of the country, and of the civil and religious customs and manners of the people; in a series of letters to a friend in England. By John Matthews, Lieutenant in the Royal Navy; during his residence in that country in the years 1785, 1786, and 1787. With an additional letter on the subject of the African slave trade. Also, a chart of part of the coast of Africa, from Cape St. Ann, to the River Rionoonas; with a view of the Island Bananas.