r, by means of mechanical appliances brought into action solid particles of fuel, usually carried off by the draft to be Heat and Steam. by occasional exertion of force storing up power, for the time deposited in a solid form. A correspondent writing to us on the subject of" Waste and when… … would be 2,065 foot-pounds. This result we prac- Pig. 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 30 per cent of useful heat. Adding this 30 per cent to our line…
