Simmons, Roger Edwin. [from old catalog] · Harrisburg, Pa., W. S. Ray, state printer · leaf 102
ofwood used for making them, if not of the requisite strength, hardness, anddurability, would in nowise pay in service the expenses of making the sprags. This industry excludes the softwoods and a number of soft hardwoods, likeaspen, yellow poplar, basswood, etc. Chestnut is not suitable owing to…
Woodwork · Lumber trade · Forests and forestry
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