01082cam a22002291  4500001001300000003000400013005001700017008004100034010001700075040004500092043001200137050003000149051003600179100002700215245035600242260005000598300005400648500007600702500002900778650002800807999001700835gs 06001370 DLC20260227111305.0870204s1848    ohuf          000 0 eng c  ags 06001370   aU.S. Geol. survey. Library/ICUcICUdDLC  an-us---00aQE77b.C5 1848 Toner Coll  aQE77b.C5 1848acAnother issue.1 aChristy, David,d1802-10aLetters on geology:bbeing 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.cBy David Christy.  aRossville [O.]bJ.M. Christy, printer,c1848.  a72, 11 p.bplates (part col., part fold.)c25 cm.  aImprint on cover: Oxford, W. Wallace; J.M. Christy, printer, Rossville.  aText on p. [4] of cover. 0aGeologyzUnited States.  c24542d24542