Technical paper . ?° i .3 2 >. 5: £2 - —I • II ?a -^ CO < now EXPLOSIVES \i;k iianim i k 27. 28 MINE-ACCIDENT PREVENTION. soft in this room, but in cold weather two electric thawers are thawers consist of wood boxes 8 by 24 by 48 inches, withshelves arranged above some exposed lengths of german-silver wire,just above which is a sheet-iron plate covered with The tem-perature of the boxes varies from 80° to 85° F. A competent manis in charge at all times. Fuse is kept in this powder house, but themen have their detonators (blasting caps) in special boxes providedfor
Technical paper . ?° i .3 2 >. 5: £2 - —I • II ?a -^ CO < now EXPLOSIVES \i;k iianim i k 27. 28 MINE-ACCIDENT PREVENTION. soft in this room, but in cold weather two electric thawers are thawers consist of wood boxes 8 by 24 by 48 inches, withshelves arranged above some exposed lengths of german-silver wire,just above which is a sheet-iron plate covered with The tem-perature of the boxes varies from 80° to 85° F. A competent manis in charge at all times. Fuse is kept in this powder house, but themen have their detonators (blasting caps) in special boxes providedfor the purpose and carry them in and out of the mine as they goto or return from work. At a prominent group of mines on the Menominee range explosivesare delivered underground each day and are kept in dry, well-
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
