n trans- ly into a power extending through a period much longer than formed into steam, does not, as he supposes, only that required for condensing or compressing it. contain 1,169 units of heat, but contains 1,169 mul- tiplied by 624 pounds, or 78,062°5 units. The steam engine furnishes a ready… … would be 2,065 foot-pounds. This result we prac- 77 Fig. 1 is a vertical longitudinal representation of a furnace tically obtain every day with engines which we know to lose and boiler, and Fig. 2 is a cross section, taken on a transverse 80 per centof useful heat. Adding this 30 per cent to our…
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