OCR Text |
Show TESIFOMSfOL coal .:::iESjpf utah T daUnmln th baat aowdar ta uaa In tha coal mines of tha stats. series of tst la beinc mad under tha dlr-tloa dlr-tloa of J. m. Petti t. stat coal mine Inspector. In-spector. Inspector Pettlt saya tha first . ih anad early thia week in the southern part of th state, when the Ktiia permissible powder waa tried OUT. ' Mr. ettjt am tha powder manufacturers manufac-turers are aradln their powder dn. much the earn aa cattlemen arad their icatti. The deetre t to s-t a powder which . explodes much the same as Mark powder, hut wbt'h g-tvee off leas amok and a smaller blase. AH , the powders wlH ba tried eut, and tha most aatls-tmrtsny aatls-tmrtsny adopted generally la the coal mines. Tn renilar giant powder. It- Is said, la not satisfactory hi moat mlnea unleaa tha coal la brittle, and Mack powder gives oft -too much smoke and blase. |