01082cam a22002291 4500 gs 06001370 DLC 20260227111305.0 870204s1848 ohuf 000 0 eng c gs 06001370 U.S. Geol. survey. Library/ICU ICU DLC n-us--- QE77 .C5 1848 Toner Coll QE77 .C5 1848a Another issue. Christy, David, 1802- Letters on geology: being a series of communications originally addressed to Dr. John Locke, of Cincinnati, giving an outline of the geology of the West and South West, together with an essay on the erratic rocks of North America, addressed to M. de Verneuil. Illustrated by geological sections and engravings of some rare fossils. By David Christy. Rossville [O.] J.M. Christy, printer, 1848. 72, 11 p. plates (part col., part fold.) 25 cm. Imprint on cover: Oxford, W. Wallace; J.M. Christy, printer, Rossville. Text on p. [4] of cover. Geology United States. 24542 24542