| Description | Summarised "About winding up of Boulton & Fothergill’s affairs and Boulton’s generosity towards him. Playfair upon patent drawings. Thinks Hornblower’s two-cylinder engine comes about through Boulton mentioning it to Wilson about two years ago that had this scheme in reserve when the mines were so deep as to load the single cylinder too much, thereby enabling you to use second-hand steam. About the two-cylinder model. Boulton’s sketch of a boiler [within the text], also other useful information." |