The engine, of which this is a model, performed the high duty of lifting one hundred and ten millions of pounds one foot high by the con sumption of one bushel of coal (94 lbs.)
The arrangements of the Cornish pumping engine may be studied in Wickstead's book on the Cornish engine.  The engine, of which this is a model, performed the high duty of lifting one hundred and ten millions of pounds one foot high by the con sumption of one bushel of coal (94 lbs.)  in the fire-place of the boilers.