An account of the principle and effects of the Pensilvanian stove-grates , (which warm Rooms, &c. by a continual Introduction and Exchange of dry fresh Air) Commonly known by the Name of American Stoves; together with a description of the late additions and improvement made to them, By James Sharp, (for which His Majesty's Patent is obtained) No. 15, Leadenhall-Street, London. N. B. The Manufactory is at No. 133, Tooley-Street, Southwark.