Harold Jones died at the home of his daughter, at Belo Horizonte, Mina Geraes, Brazil, on the 6th June, 1956, after a long illness.

In 1895 he was awarded a chemistry scholarship by Lancashire County Council which he held at Victoria University, Manchester, also studying metallurgy. Upon leaving university he became assistant in a metallurgical laboratory in Birmingham, and about a year later left England to take a post as chemist on the Usina Wigg manganese mines in Brazil, where he stayed four years.

Mr. Jones began a long association with the St. John d’el Rey Mining Co., Ltd, in 1904. He began as assistant assayer and was appointed assistant reduction officer in 1912 and reduction officer in 1928. He held this position until his retirement some ten years before his death. He carried out some private consulting work after retirement, and continued to live in Brazil.

Mr. Jones contributed two papers to the Transactions of the Institution: ‘The Morro Velho method of assay of gold-bearing cyanide solutions,’ jointly with D.M. Levy (vol. 24, 1914-15); and jointly with J.H. French ‘Reduction works practice at Morro Velho, Brazil’ (vol. 42, 1932-33).

Mr. Jones was elected an Associate Member of the Institution in 1907.

Vol. 67, Trans IMM 1957-58, p.604.

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