New England Equalizing Heater Co. New and important discovery in the application and use of steam to heating, ventilating, &c., by Prof. John Johnson, Saco, Me. ... [1865-1870] ... [electronic resource].
Electronic text and image data. [Chester, Vt. : Readex, a division of Newsbank, Inc., 2005. Includes files in TIFF, GIF and PDF formats with inclusion of keyword searchable text. (American broadsides and ephemera. First series ; no. 22138).