An account of the new invented Pennsylvanian fire-places: wherein their construction and manner of operation is particularly explained; their advantages above every other method of warming rooms demonstrated; and all objections that have been raised against the use of them, answered and obviated. With directions for putting them up, and for using them to the best advantage. And a copper-plate, in which the several parts of the machine are exactly laid down, from a scale of equal parts.Franklin, Benjamin, 1706-1790.1744Book-plate of Henry Stevens of Vermont.Signatures: leaf (t.-p.) unsigned, A-E⁴ (E₂ numbered E₃; E₄ blank)SML,FRA 381 Ac2 +1744b: Negative photostat on 22 l. (22 x 28 cm.) each leaf showing confronting pages of original.SML,FRA 381 Ac2 1744: Signatures wanting.text