01216cam a22002891 4500 gs 25000034 DLC 20260227111329.0 761116s1925 vauabf s000 0 eng gs 25000034 (OCoLC)2560280 DLC OT OCoLC DLC premarc QE173 .A2 no. 25 TN805.V8 C3 Copy 2 Campbell, Marius R. (Marius Robinson), 1858-1940. The Valley coal fields of Virginia, by Marius R. Campbell and others. Prepared in co-operation with the United States Geological survey. With a chapter on The forests of the Valley coal fields of Virginia, by Fred C. Pederson. Prepared in co-operation with the Office of state forester. Charlottesville, University of Virginia, 1925. ix, 322 p. ill., XXVII pl. (incl. fold. col. map) tables, diagrs. 26 cm. Virginia Geological Survey. Bulletin no. 25 Map folded in pocket. Bibliographical references. Coal mines and mining Virginia. Forests and forestry Virginia. Pederson, Fred C. Geological Survey (U.S.) 26359 26359