Show Anthracite Coal to Last 85 Years Indlaunpolls lud According to Prof William Giifllths mining expert and geologist of Scranton Pa the entire en-tire supply of anthracite coal will bo exhausted In 85 years His estimates on the supply ate based on 1903 surveys sur-veys Tho production has been averaging averag-ing just under 80000000 tons a year for several yours In 1907 It was 70 000000 tons Ahead much territory Is entlitIy mined out and the empty caverns ale to numerous that It Is possible pos-sible for people to walk twenty or unlit 01 moll miles under tine surface of the earth In mine passageways u |