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Show STEAM USED TO MINE ASPHALT DEPOSITS J. F. Cowan. Utah mining man. returned re-turned yesterday from a trip of inspection inspec-tion of the asphalt beds at Promontory Point, eleven miles from Kot-elle, L'tsh. Not long ago Mr. Cowan began a search ior an economical inuuivu 01 liii.iu.i, mineral. ,V pipe was run into the ground a distance of 170 feet until it pierced the asphalt bed. Although the mineral oozed out of the pipe, it was too (hick lo bo nilnod profitably in this way. Mr. Cowan plans to inject steam into the beds until the asphalt Is liquefied. Wnen this Is accomplished, tho substance can bo baled out to the surface, it is said. |