'The space occupied by the water tanks in the steam launches belonging to the naval service being comparatively large, and therefore inconvenient in such small vessels, Mr. Crichton, engineer to the Cork Steam Ship Company, has endeavoured to obviate the difficulty, and the merits of his invention have been tested at Devonport, apparently with success. The double-screw steam-launch No. 33, belonging to Her Majesty's ship Cambridge was tried at the measured half-mile on the Tamar (off Saltmarsh) on last Tuesday week. Her engines, which were built by Messrs. Penn and Son, are direct acting high pressure, and are now fitted with Mr. Critchon's patent surface condensing apparatus, by which means the large water tanks formerly carried, and also the noise of the exhaust pipe in the funnel, are avoided.'