01216cam a22002891 4500001001300000003000400013005001700017008004100034010001700075035001900092040002400111042001200135050002200147051002500169100005600194245029500250260005300545300007900598410005000677500002600727504003200753650003700785650003600822700002200858710002900880999001700909gs 25000034 DLC20260227111329.0761116s1925 vauabf s000 0 eng  ags 25000034  a(OCoLC)2560280 aDLCcOTdOCoLCdDLC apremarc00aQE173b.A2 no. 25 aTN805.V8bC3cCopy 21 aCampbell, Marius R.q(Marius Robinson),d1858-1940.14aThe Valley coal fields of Virginia,cby 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. aCharlottesville,bUniversity of Virginia,c1925. aix, 322 p.bill., XXVII pl. (incl. fold. col. map) tables, diagrs.c26 cm.20aVirginia Geological Survey.tBulletinvno. 25 aMap folded in pocket. aBibliographical references. 0aCoal mines and miningzVirginia. 0aForests and forestryzVirginia.1 aPederson, Fred C.2 aGeological Survey (U.S.) c26359d26359