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Measures of Ores, Earth, Etc

13 cubic feet of ordinary gold or silver ore, in mine.. I ton-2000 lbs. 20 cubic feet of broken quartz I ton- 2000 lbs.

In calculating the quantity of ore " in place" in a mine, an allowance is generally made for moisture in the ore, determined by the character of the ore. 18 feet of gravel in bank-1 ton. 27 cubic feet of gravel when dry-1 ton. 25 cubic feet of sand-1 ton. 18 cubic feet of earth in bank-1 ton. 27 cubic feet of earth when dry-1 ton. 17 cubic feet of clay-1 ton. 44.8 cubic feet bituminous coal when broken down-1 long ton, 2240 lbs. 42.3 cubic feet anthracite coal when broken down-1 long ton-2240 lbs. 123 cubic feet of charcoal-1 ton, 2240 lbs. 70.9 cubic feet of coke-I ton, 2240 lbs.

I cubic foot anthracite coal-50 to 55 lbs.

I cubic foot bituminous coal-45 to 55 lbs.

I cubic foot Cumberland coal-53 lbs.

I cubic foot Cannel coal-50.3 lbs.

I cubic foot charcoal (hard wood)-18.5 lbs.

I cubic foot charcoal (pine)-18 lbs.

I cord of wood, 4 ft. X4 ft. X8 ft.-128 cubic feet.

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