00498     2200169   4500001002100000005001500021035002000036007000300056008004100059082001100100084001500111245011700126260003300243300002800276650001100304990001300315INLIS00000000005390320220416013942  a0010-0422000453ta220416                g          0 eng    a625.86  a625.86 INV  aInvestigations in ceramics and road materials :btesting and research laboratories /cDepartment of Mines Canada  aOttawa :bF.A. Acland,c1926  a70 p. :bill. ;c25 cm. 4aMINING  aBK010899