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Show Cost of Mine Timbers. The cost of exery ton of anthracite Is Increased eight cents by tho expense ex-pense of the mine timbers. To supply sup-ply these tlmbeis, says the Vegeta-ilan Vegeta-ilan Magazine, lequlres each year the pioduct of iipproxlmntetly 150,000 acres or forest. Timber Is used for cioss ties for tram roads In the main haulage ways, as wooden i oilers and at, piops. A set of gangway timber consists or two legs, commonly nine or ten feet long and about l.'l Inches In diameter, nnd a collar six or seven feet long. These sets nro placed on an aveiage at Intervals In-tervals or file reet; ono gangway frequently fre-quently contains 1,000 bets, and ten gangways to a collleiy Is not an unusual un-usual number. The aveiage life or the timber Is hardly ubovo two years. Forty-five per cent, of the timbers ate ilestioyed, by decay, while bieakago, wear and InBects destroy tho lenuilnder. Ry peeling the timbers and pioporly sea-aonlng sea-aonlng them nnd especially by giving them n treatment In oils or charnlcal salts, their length of service Is matcri ally Inci eased. |