Manual of coal and its topography. [electronic resource] Illustrated by original drawings, chiefly of facts in the geography of the Appalachian region of the United States of North America. By J. P. Lesley.
Electronic text and image data. Ann Arbor, Mich. : University of Michigan, Digital Library Initiatives, 2000. Includes both TIFF files and keyword searchable text. [Making of America] This volume is made possible by a grant from the Andrew W. Mellon Foundation as part of Making of America IV: the American voice, 1850-1877.