Fires improv'd [electronic resource] : being a new method of building chimneys, so as to prevent their smoaking: in which A Small Fire, shall warm a Room better than a much Larger made the Common Way. With the manner of altering such Chimneys as are already Built, so that they shall perform the same Effects. Illustrated with Cuts. Written in French, by Monsieur Gauger: made English and improved, by J. T. Desaguliers, M. A. F. R. S. By whom is added, the manner of making coal-fires, as useful this new-way, as the wood-fires propos'd by the French author, Explain'd by an Additional Plate. The whole being suited to the Capacity of the meanest Work-Man.