The Navigator, : containing directions for navigating the Ohio and Mississippi rivers; with an ample account of these much admired waters, from the head of the former, to the mouth of the latter; and a concise description of their towns, villages, harbors, settlements, &c. : With maps of the Ohio and Mississippi. : To which is added an appendix, containing an account of Louisiana, and of the Missouri and Columbia rivers, as discovered by the voyage under Capts. Lewis and Clark.