http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
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
72, 11 pages : plates (part color, part folded) ; 25 cm.
Illustrated by geological sections and engravings of some rare fossils.
Imprint on cover: Oxford, W. Wallace; J. M. Christy, printer, Rossville.
Microfilm. Ann Arbor, Mich., Xerox University Microfilms, 1972. 35 mm. (American Culture Series, reel 537.8)