Letter from James Watt to Sir Joseph Banks, Soho Square, London Answers query about his commentary on Dr Robinson's memoir upon the Steam Engine in the Encyclopedia Brittannica for the use of Dr Brewster. Discusses his experiments for the steam engine in 1765, 1772 and 1793. Gives recommendations for Mr Biot to read. Writes of his illness and that of his grandson who is suffering from a fatal comsumption, asks for medical recommendation on which climate would suit him best. 1 March 1815