00825cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035001900092040004600111042001200157050001700169110004100186245004800227260004800275300005800323500005800381500007200439650002200511700003300533999001700566gs 13000255 DLC20260227111314.0790223s1912    xx            000 0 eng c  ags 13000255   a(OCoLC)4687386  aLibrary, U.S. Geological SurveycOCldDLC  apremarc00aTN287.C2bA51 aCanada.bCommission of Conservation.10aMine-rescue work in Canada,cby W. J. Dick.  aOttawa,bCommission of conservation,c1912.  avii, 50 p.bplates, plans (part fold.) diagr.c25 cm.  aAt head of title: Commission of conservation, Canada.  aOn cover: Commission of conservation Canada. Committee on minerals. 0aMine rescue work.1 aDick, William Joseph,d1833-  c25249d25249