00989cam a22002531a 4500001001300000003000400013005001700017008004100034010001700075035002000092040004700112042001200159050001600171100003100187245012200218260008400340300007000424490005500494500007200549650002100621700003600642710004000678999001700718gs 11000401 DLC20260227111311.0831011s1875    enkabf        000 0 eng c  ags 11000401   a(OCoLC)10000492  aU.S. Geological Survey. LibrarycPPANdDLC  apremarc00aQE243b.B871 aBrown, Charles Barrington.10aReports on the physical, descriptive, and economic geology of British Guiana /cby Charles B. Brown and J.G. Sawkins.  aLondon :bPrinted for H.M. Stationery off., and sold by Longmans, Green,c1875.  aiv, 297 p. :bill., fold. plates, fold. map (in pocket) ;c25 cm.0 aMemoirs of the Geological Survey of Great Britain.  aPub. by order of the lords commissioners of Her Majesty's Treasury. 0aGeologyzGuyana.1 aSawkins, James Gay,d1806-1878.2 aGeological Survey of Great Britain.  c25056d25056