THE PRESERVATION OF MINE TIMBERS

In mining operations the cost of timber is an item of much importance, because the life of mine timbers is, in many cases, very short and, as the supply of the better grades becomes depleted, less durable kinds must be used. This, of course, tends to shorten still further the period of serviceability.
Keywords: Cost, Costs, creosote, insect, preservative, timber, wood, Decay, Mine, Mines, Pressure, Treatment, wear
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