Matthews (John). A Voyage to the River Sierra-Leone, on the Coast of Africa ... With an Additional Letter on the Subject of the African Slave Trade, 1st edition, London: for B. White and Son, 1788, bound after: Bowdler (Thomas). Letters written in Holland in the Months of September and October, 1787, 1st edition, London: printed for the benefit of a charitable institution at Bath, 1788. 2 works in 1 volume, 8vo (212 x 125 mm), 19th-century red half calf (spine somewhat faded and rubbed), edges dyed yellow, Matthews with engraved folding frontispiece ('A View of the Island of Bananas'), engraved folding map, frontispiece spotted and offset, map offset and with short closed tear to inner fold affecting frame only (old repair verso), a few pages with manuscript braces added to margins in black ink, spotting to last few pages, Bowdler with 2 engraved folding maps (one as frontispiece) of which both slightly browned and causing spotting to adjacent leaves including title-page, title-page and subsequent few leaves also with damp-stain to lower outer corner (qty: 1) ESTC T6213 (Matthews), T63080 (Bowdler); Sabin 46888 (Matthews). Provenance: George Wilbraham (1779-1852), Whig politician, of Delamere House, Northwich, Cheshire (bookplate).