Bulletin . A. COAL-DUST IGNITION APPARATUS USED AT B. APPARATUS USED AT PITTSBURG, SHOWING IGNITION OF DUST. [INVESTIGATIONS OF THE n;\iin»\ 01 COAX Dl P. L48 Remits of laboratory experiments with explosive coal dusts at Pitt burg taHon i h up ol il iciins\ iv:uii:v bltumlnoua Illinois bituminous, uonook*lag Illinois bltumlnoua gaa bltumlnoua West Virginia bituminous Alabama bituminous No. or C\|M| 1 lllllll Distiii e hall1 • r < ? Jeoted 312363343 In the above tabulation no account is taken of the moisture or ashin the coals, nor of any deterioration of any o
Bulletin . A. COAL-DUST IGNITION APPARATUS USED AT B. APPARATUS USED AT PITTSBURG, SHOWING IGNITION OF DUST. [INVESTIGATIONS OF THE n;\iin»\ 01 COAX Dl P. L48 Remits of laboratory experiments with explosive coal dusts at Pitt burg taHon i h up ol il iciins\ iv:uii:v bltumlnoua Illinois bituminous, uonook*lag Illinois bltumlnoua gaa bltumlnoua West Virginia bituminous Alabama bituminous No. or C\|M| 1 lllllll Distiii e hall1 • r < ? Jeoted 312363343 In the above tabulation no account is taken of the moisture or ashin the coals, nor of any deterioration of any of the samples that mayhave taken place before or after powdering and storing in is shown in the table, lignites generally exhibited greater irregu-larity of results. The
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
