Explorations & Adventures in Equatorial Africa. xviii, 479, 28 ad pp. Folding frontispiece of gorilla. First Edition. John Murray, 1861. * A Journey to Ashango-Land: And Further Penetration into Equatorial Africa. xxiv, 501, [2] ad pp. Frontispiece and engraved folding map at rear. First American Edition. D. Appleton, 1867. Together two octavo volumes in blindstamped cloth with gilt decorative covers and lettered spine.

Paul du Chaillu was a French-American traveller, and these two famous accounts include his highly prized at the time observations on the gorilla of equatorial Africa.