Lives of Boulton and Watt. Principally from the Original Soho MssNote 112 — Chapter X · Boulton and the Steam Engine—Correspondence with Watt.Reading editionDarwin to Boulton, March 11, 1766. Boulton MSS.◇Copy noteReturn to CHAPTER X. Boulton and the Steam Engine—Correspondence with Watt.