Hugh Mackenzie Leslie died in a nursing home in Glasgow on October 11th, 1929.
He was intimately associated with the cyanide process almost from its inception, for in 1887 he obtained the position of private assistant to the late Mr. John S. MacArthur and the Doctors Forrest when they were conducting the researches that ultimately led to the introduction of the well-known MacArthur-Forrest process. In 1891 he was transferred to the Cassel Gold Extracting Co., and retained his connexion with the Cassel Cyanide Co., Ltd., until a short time before his death.
From 1894 his work was chiefly in India, designing, erecting and operating cyanide plants for Messrs. John Taylor and Sons on their mines on the Kolar gold field, and amongst the plants thus started were more than a dozen on the Mysore, Champion Reef, Ooregum, Nundydroog, Balaghat, Nine Reefs, Road Block and Gold Fields of Mysore gold mines respectively.
Mr. Leslie was elected an Associate of the Institution in 1901.
Vol. 39, Trans IMM 1929-30, pp.696-7
