โ Scribed by W.W. Adams
No coin nor oath required. For personal study only.
probably does not exist, due to the better illumination found in American coal mines.
Beat knee, beat hand, and beat elbow are important hazards in the mines of Great Britain, but cannot be considered so, excepting in very limited areas, in the United States. A more detailed account of the investigation will be found in Serial 266o, recently issued by the Bureau of Mines.
EXPLOSIVES USED IN MINING.
๐ SIMILAR VOLUMES
Oct., I913. ] CURRENT TOPICS. 469 Coal-Dust Explosions. (4th Report of Explosions in Mines Committee.)IWhile there is 11o well-defined border line between
## THE FRANKLIN INSTITUTE. โข Communicated by the Author to the Stated Meeting, held Wednesday, April zS, zgo 3. The Mine Explosion at Johnstown. BY M. G. MOORE, Miuing Engineer in charge of the Mining and Coking Department of the Cambria Steel Company. On the tenth day of July, 1902 , there was