Thomas Haight Leggett died at Plainfield, New Jersey, U.S.A., on October 1st, 1935, at the age of 75.
He graduated from the School of Mines, Columbia College, New York City, in June, 1879, with the degree of E.M., and was immediately employed as assistant engineer on the River and Harbour Surveys of that city. He then obtained the position of superintendent of mining properties in the Batopilas District, Chihuahua, Mexico, which he held until 1883. After about a year spent in visiting the principal mining camps of the western United States, he was appointed mining engineer for the New York and Honduras Rosario Mining Co., in Honduras, and manager and consulting engineer to the Darien Gold Mining Co., Columbia. In 1891, he was appointed president and manager of the Standard Consolidated Mine, Bodie, California, a position he held until 1905, when he went to South Atriea as consulting engineer to S. Neumann & Co., in Johannesburg. In 1903 he came to England, when he practised as a consulting engineer in London until 1907. He then returned to the United States and opened an office as consulting engineer in New York City, and in 1912 was appointed consulting mining engineer to the American Smelting and Refining Co.
He contributed three papers to the Transactions of the Institution some years ago: on ‘Treatment of Tailings by the Cyanide Process at the Standard Consolidated Mines, Bodie, California’ (Trans., vol. iv); ‘Additional Notes on the Treatment of Zinc-box Precipitate from the Cyanide Process’ (Trans., vol. v) ; and ‘Estimate of Gold Production and Life of Main Reef Series, Witwatersrand’ (Trans., vol. xii), the last-named paper being written in collaboration with the late Dr. F.H. Hatch.
Mr. Leggett was elected a Member of the Institution in 1894. He was a Member of Council from 1902 to 1907, and for three years of that period held the office of Vice-President.
Vol. 45, Trans IMM 1935-36, pp.516-17
