00859cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040004600112050002300158100002500181245011300206260006700319300004300386490006600429500004000495504003200535650001700567650001600584999001700600gs 27000053 DLC20260227111331.0920727s1926    enka     b   f000 0 eng c  ags 27000053   a(OCoLC)26265578  aLibrary, U.S. Geological SurveycCStdDLC00aTN295b.G65 no. 221 aJones, Elwyn,d1901-12aA method for the determination of the velocity of detonation over short lengths of explosives,cby E. Jones.  aLondon,bPrinted and published by H.M. Stationery Off.,c1926.  a21 p.billus., tables, diagrs.c25 cm.0 a[Great Britain] Safety in Mines Research Board. Papervno. 22  aAt head of title: Mines Department.  aBibliographical foot-notes. 0aMine safety. 0aExplosives.  c26538d26538