00903cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040005400112042001200166050002200178082001000200110006800210245008800278260007500366300002600441490005400467650003500521830008800556999001700644gs 45000031 DLC20260227111350.0861112s1944    bcca          000 0 eng c  ags 45000031   a(OCoLC)14705030  aU.S. Geol. Survey Libr.cTxDaMdTxDaMdOCoLCdDLC  apremarc00aTN27b.B72 no. 18  a669.91 aBritish Columbia.bDepartment of Mines and Petroleum Resources.00aSpecimens and samples, their treatment and use,cby officers of the Dept. of Mines.  aVictoria, B.C.,bPrinted by C.F. Banfield, printer to the King,c1944.  a27 p.billus.c27 cm.1 aBritish Columbia. Dept of Mines. Bulletinvno. 18 0aOresxSampling and estimation. 0aBulletin (British Columbia. Department of Mines and Petroleum Resources) ;vno. 18.  c28024d28024