fame chiefly rests. In 1829 he designed the harbour which was afterwards executed at Par Docks in Cornwall; in 1835 he carried out works on the Bude harbour, dock, and Bude Canal, and in 1836 he designed Brixham harbour and the breakwater at Torquay. In 1836–37 he designed, as a terminus to the Great Western Railway, the Millbay Docks, Plymouth, afterwards executed by Isambard Kingdom Brunel. In 1843–44 he constructed canals in Devon, and was engaged on the Colchester and Arundel navigation; and in 1844 he designed harbour improvements for Newhaven and Littlehampton in Sussex. At the same time he was largely employed on marine works by the Admiralty and other government departments, as well as by public companies. The Exchequer Loan Commissioners engaged him in 1835–37 in the repair of the Montrose suspension bridge after its fall. There he introduced the principle of trussing the framing of the roadway. This system of preventing the undulation, by which so many structures of the kind have been destroyed, was quickly acknowledged to be essential to their safety. London practice About 1838 Rendel dissolved his partnership with Beardmore at Plymouth, and settled in London, but still was chiefly employed on work for his native county. In 1841 he constructed the Millbay Pier, Plymouth – a work of considerable difficulty owing to the depth of water in which it was built. Here he first introduced the method of construction since employed in Holyhead and Portland harbours. In 1839 he was engaged in preparing schemes for a railway between Exeter and Plymouth, running over Dartmoor. At the time sufficient funds could not be raised, but an alternative coastal line was afterwards carried out by I. K. Brunel. In 1843 he made plans for docks at Birkenhead, which he defended before parliamentary committees against hostile local influence. The contest was long protracted, and the incessant labour served to shorten Rendel's life; his published evidence forms a valuable record of engineering practice of the period. In 1844–53 he constructed docks at Grimsby; in 1848–53 extensions of the docks at Leith; in 1850–53 docks at Garston on the Mersey, with extensions of the East and West India and the London docks. As constructor of the Grimsby docks he was one of the first to apply W. G. Armstrong's system of hydraulic machinery for working the lock gates, sluices, cranes, etc. For this work he received a grand