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EXPLOSIVES. <br />T}te exp}osives used ie the 40f, 7~8 in.Girutt powder~3X capn and Cernwn <br />insoloid (use. <br />The powdet• Yn stored in a frmne magaz ino ~4{~'X~~'~eet in dump 46 ft.ea <br />of the blackss~i t}i s}top. Average amount kept in storage lOQ.<<. <br />The powder is heated by a galvanized iron water jacketed thawer also <br />in u h•ama houner4'X4'~heatsd by exhaunt steam~loanted on dump. <br />