(TRAVEL.) [Zadok Cramer.] The Navigator; Containing Directions for Navigating the Monongahela, Alleghany, Ohio, and Mississippi Rivers. 28 woodcut maps paginated with text. 360 pages. 12mo, contemporary ½ calf, worn, crudely rejointed, tight; minor wear to contents; early signatures on page x and rear pastedown. In ¼ calf folding case. Pittsburgh, 1814 8th and largest edition. "Most widely used guide to western waters in the early period"--Howes C855. Most of the maps are river sections, numbered 1 to 13 and I to XIII; also includes a map of Pittsburgh, a long description of the young city (pages 49-72), and a detail of the "Falls of Ohio." Appended in this edition for the first time is an expanded "Abridgement of Lewis and Clark's Expedition," pages 343-349. Erickson, Literature of Lewis and Clark, page 105; Sabin 17386.