00823cam a22002531  4500001001300000003000400013005001700017008004100034010001700075035001800092040002600110042001200136050002100148100003300169245005600202260004200258300005000300410006400350500005200414504003200466650001300498650004100511999001700552gs 27000369 DLC20260227111332.0720306s1927    xx            000 0 eng    ags 27000369   a(OCoLC)256115  aDLCcOAkUdOCoLCdDLC  apremarc00aQE185b.A4 no. 41 aHurst, Macleod Ewart,d1897-10aArsenic-bearing deposits of Canada,cby M.E. Hurst.  aOttawa,bF.A. Acland, printer,c1927.  aiv, 181 p.bincl. illus., tables. fold. plan.20aGeological Survey of CanadatEconomic geology seriesvno. 4  aAt head of title: Canada.  Department of mines.  aBibliographical foot-notes. 0aArsenic. 0aMines and mineral resourceszCanada.  c26596d26596