Note 62 — Chapter I

Mr. Smiles, in his interesting “Lives of the Engineers” (i.) states that, in 1790, Lord Stanhope had proposed a mode of propelling vessels by steam, and had been in communication with Mr. Rennie on this subject, who, on the 26th April of that year, sent his Lordship such information as he could obtain about Boulton and Watt’s improved steam-engine. Lord Stanhope objected to the space occupied by the condensing apparatus, to which Mr. Rennie replied that high pressure could be applied, on which his Lordship constructed a vessel on that plan which obtained a speed of 3 miles an hour (vol. ii. p. 237).