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Charcoal from Coal-Tar

Heat prevent the vinegar from running out. It is gentry in an iron pot till it melts, 1 pound essential to the success of the process that a coal-tar pitch. Add 2 pounds fluid coal-tar, current of air should pass through the tub. In order to establish this circulation, the above holes are made, and the air enters by them, and passes out through the tubes in the B A D D false bottom above. Some parties insert a perforated false bottom about 2 inches below the slanting ventilation-holes, to support the shavings, leaving the portion of the tub below free; others prefer a similar false bottom about 2 inches above the holes, in order to prevent the shavings from coming in contact with the holes and obstructing the ventilation. Dis is a stop-cock, or faucet, 6 inches from the bottom of the generator, the discharging capacity of which must be controlled by the size of the generator. Never draw off the vinegar below this faucet. also be entirely packed with beech shavings or entirely with cobs; the latter, however, are inferior, as they soon rot and become worthless. Beech chips are preferred to shavings by some vinegar manufacturers.