discovered that the air could be proportion to their size as to render them unfit for out any account of its performance as to power, con- practical use. It was found necessary, therefore, to divested of its heat to a great extent, on its passage sumption of fuel, &c., being given; and it has been… … the purpose of being through which there was heated, immediately a constant flow of water. ‘comes in contact with metal that is hotter than itself, In each of these vessels there was an air-tight vessel increasing the density of the air in the air vessels, and and consequently has its temperature…
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