| Description | On the same sheet: Sketch and calculations re. a boiler. Transcript of extract of letter. John Rennie to James Watt Jr. 15 Apr. 1814. Docketed "Orders a 6 horse engine for a mud machine for the Kennet & Avon Canal Co. Also, extract of a letter from Mr. Rennie to James Watt Jr. 15 April 1814. Can afford 14 to 15 feet in height for the mud engine. Will send a man to the Witham Navigation in 8 or 10 days." |