12mo (176 x 103 mm). 28 woodcut maps of rivers and creeks, including one plan entitled "Fall of Ohio." (Some dampstaining and browning, portion of fore-edge of N6 torn away affecting portions of map and text.) Original boards, old leather backing (early rustic stitch repair to spine on front board, some overall wear). Provenance: John W. Sterne (signature, rear flyleaf). 

Eleventh edition of Cramer's navigational guide to the Ohio and Mississippi rivers, the "most widely used guide to western waters in the early period, both before and after the application of steam in 1807" (Howes). the Navigator first included an account of the discoveries of Lewis and Clark in the sixth edition of 1808, present also in this edition. The Appendix includes a summary of Lewis and Clark's discoveries based on a letter written by William Clark to his brother in Louisville (see Wagner-Camp 4). According to Graff, no copies of the first two editions of the Navigator are known. See Graff 2954; see Howes C-855; see Literature of the Lewis & Clark Expedition pp.89-94; Sabin 17386.