Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 858
ireplace the heat utilized in a room roseto 0.355 of the heat given off from the fuel. Therefore, to produce the same degree of warmth in aroom, Galtons fireplace requires only one-third of the quantity of coal required by an ordinaryfireplace. It may be laid down as an axiom that every fireplace… … 4048.
Mechanical engineering -- Dictionaries
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