London: Frank Cass, 1968.
Hardcover. Fine in a Very Good dust jacket. Reprint of the 1875 edition. Book is as-new, dust jacket is sunned at the spine and price-clipped. Slavery Series No. 3. According to the dust jacket, "Cooper's work was aimed at whipping up a state of public opinion which would force the British government into concrete diplomatic action to end Mohammodean and Portuguese slaving in East Africa."