Philadelphia, 1788. At a meeting of the American Philosophical Society, on the 18th of April 1788 a letter was received from Mr. James Rumsey, of the state of Virginia, accompanied with a drawing and description of an improved boiler for a steam-engine, as also drawings and discriptions [sic] of 1. An improvement in Dr. Barkers' grist-mill. 2. An improvement in the saw-mill. 3. An improvement in raising water by means of a steam-engine (s.n, 1788)
Bristol, B6660. - Excerpt from the minutes, containing a brief report of the committee appointed to examine the drawings of Rumsey's inventions. With an added note by Rumsey, dated May 10, 1788, on John Voight's pipe boiler. - Rink, E. Technical Americana, 2921. - Rink, E. Technical Americana, 3575. - Shipton & Mooney, 45218. - Signed on p. [2]: John Ewing, David Rittenhouse, Robert Patterson. Extract from the minutes, Samuel Magaw, one of the secretaries