CHAPTER XXIV.. [1833-1847.]

The Inventions and Discoveries of Lord Dundonald's Father.--His own Mechanical Contrivances.--His Lamps.--His Rotary Steam-Engine, his Screw-Propeller, his Condensing-Boiler, and his Lines of Ship-building.--Their Tardy Development.--His Correspondence upon Steam-Shipping with Sir James Graham, the Earl of Minto, the Earl of Haddington, and the Earl of Auckland.--The Progress of his Inventions.--The Janus.--The Beneficial Results of his Experiments 221