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Show POWER (inly O.udo.'juu barrels of oil left underground un-derground in America, reports the geological survey. That will la.-i is' years, ai the rate oil is being used up now. Auto owners need not worry Al- j -' unlimited suppueh of oil in ' western beds of 6hale rock Cheap method of extracting It will be de vised when necessary and profitably Gasoline will soon be a back number num-ber nother decade or two and auto land airplane engines will be run by electrlcit) sent by wm-lf from giant water power plants nnd power stations sta-tions burning coal at the mines |