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Wages 2 men, at 5s. 6d 11 0 Wages 2 boys, at 3s. 6d 7 0 L 0 18 0 Oil, 1 gallon 0 3 6 Waste, 5 lb 0 1 0 Total L 1 2 6 for five million cubic feet, or 0.054d. per 1,000 feet. The boiler burns a mixture of coke and breeze, chiefly the latter, of small value, costing 0.0174d. per 1,000 feet of gas exhausted; therefore the total cost of exhausting gas by the new system is
Fuel 0.0174d Wages, oil, and waste 0.0540 Total 0.07l4d. per 1,000 cubic feet of gas, exclusive of repairs, which will be decidedly less for the new exhauster than for that on the older system, from the friction being so much less. The feed water evaporated is at the rate of about 7.4 lb. per pound of breeze, and 7.5 lb. per pound of coke.
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