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<br />r <br /> <br />-~- <br />the managers oP these properties, or proper officers, a charge oP crim- <br />inal negligence against said witnesses would conic nearer serving the <br />ends o justice, than charging managers who. risked not only the lives <br />o_` their men but their own lives daily i}ttder the belief that a pillar <br />o_' W ound 50 Peet thick stood between"them end danger, when in Pact ~ <br />_aet and one inch was the enact thickness. It appears beyond reason <br />to suppose that-men knowing the extent oP the crater and the pressure <br />exerted, both of which Pacts here knonr_ to the managers of the Americus. <br />a^.d Sleepy Hollor~ Llines, Would Por a moffient continuo to visit and oper- <br />ate amine frith only Pour Peet of rock between them mid curtain death. <br />ibis accident emphasizes the necbssity oP legislation, making <br />c~datory pro-rision Por the filing of acetzrato maps oP all unflerground <br />ror;:ings in metaliferous mining, the smno as now controls coal mining. <br />Kith such data, accidents oP this nature could be averted. <br />This departrrert flosires to acknowledge the courtesy oP Prof. <br />I'on Jiest for assistance rendered in this work and iu Piling a map mid <br />report togethex• with akotchos illust•ratiltg same. <br />(Signed) Barry A. Iron, <br />Comnissionor of ),linos. <br />~J <br />... ~ ~.h <br />