00949cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137050001700149082001000166100003600176245007900212260004800291300008700339410005600426500006400482500004200546504002500588650005300613999001700666gs 40000267 DLC20260227111345.0780708s1940    dcuabd   b   f000 0 eng    ags 40000267   a(OCoLC)4032074  aDLCcOClUdOCoLCdDLC  apremarc00aTN423.C2bJ6  a557.31 aJohnston, William Drumm,d1899-14aThe gold quartz veins of Grass valley, California,cby W. D. Johnston, Jr.  aWashington,bU.S. Govt. Print. Off.,c1940.  avi, 101 p.bincl. illus., tables. 35 pl. (part fold., incl. maps, diagrs.)c29 cm.20aGeological Survey (U.S.).tProfessional paper,v194  aAt head of title: United States Department of the Interior.  aMap and 4 colored diagrams in pocket.  aContains references. 0aGold mines and miningzCaliforniazGrass Valley.  c27653d27653