[EXPLORATION]. STANLEY, Henry M. (1841?1904). A pair of works, including: Through the Dark Continent? New York: Harper & Brothers, 1878. 2 volumes, 8vo. Numerous plates, wood?engravings, several folding maps including 2 large maps in rear pockets. Original publisher?s green pictorial cloth lettered in gilt, brown coated endpapers (hinges cracked with separation from spine, ends frayed). FIRST AMERICAN EDITION. ?? In Darkest Africa; or, The Quest, Rescue, and Retreat of Emin, Governor of Equatoria. New York: Charles Scribner?s Sons, 1890. 2 volumes, 8vo. Steel?engraved portrait frontispieces, numerous plates and wood?engravings in text, 2 (of 3) large folding maps in rear pockets. Original publisher?s green pictorial cloth gilt with inset silhouette of Africa, brown coated endpapers (covers a bit rubbed, some spots of fraying at ends). FIRST AMERICAN TRADE EDITION. ?? Together, 2 works in 2 volumes, condition generally good.