[AMERICANA ? EXPLORATION]. A group of 3 works, including: GASS, Patrick. Journal of the Voyages and Travels of a Corps of Discovery under the Command of Capt. Lewis and Capt. Clarke of the Army of the United States? Philadelphia: printed for Mathew Carey, 1812. 8vo. 3 (of 6) plates, lacking map (2 plates torn in half with loss). Contemporary calf (extremes rubbed, loss near head, some separation to lower joint). Fourth edition. Howes G77; Wagner?Camp 6:4. ?? HAPDE, Jean Baptiste Auguste. Beaut?s de l?Histoire d?Amerique? Paris: D?Alexis Eymery, 1816. Volume 1 (of 2) only, 8vo. Half?title, 6 engraved plates (hand?colored), title?page vignette also hand?colored. Full contemporary sheep, covers with gilt?tooled borders, spine gilt, all edges gilt (extremes a bit worn, old sticker affixed to upper cover). FIRST EDITION. ?? CAMPE, Joachim Heinrich. Columbus, or the Discovery of America? Translated from the original German by Elizabeth Helme. London: printed for Baldwin, Cradock and Joy, 1818. 8vo. Folding map frontispiece (some offsetting to map and title?page). Early full calf gilt (extremes rubbed). New edition. ?? Together, 3 works in 3 volumes, condition generally good.