CURTIS, CHARLES GORDON ), American inventor, was born at Boston (Mass.), April 20, 186o. He was educated at Columbia university (C.E., 1881; LL.B., 1883; M.S., 1907 ), and practised as a patent lawyer for eight years. He organized the C. and C. Electric Motor Co., and also the Curtis Electric Manufacturing Co., of which latter concern he was presi dent. He invented a steam turbine of high efficiency with a new method of controlling speed, the land rights of which he sold to the General Electric Co. This concern spent $3,000,00o in de veloping the patent, with the result that the Curtis steam turbine is widely employed both in electric power-plants and marine pro pulsion, being used in the U.S. and British navies.