Léon Perret died in Yokohama during the great earthquake which ravaged that part of Japan on September 1st, 1923, at the age of 58.
A Russian by birth, he was for five years, from 1883 to 1888, a student at the Imperial Mining Institute, St. Petersburg, where he obtained his degree as mining engineer. After completing the usual military service, he was from 1889 to 1892 engaged as assistant mining engineer on a group of Siberian gold mines. He then went to Australia, Tasmania, and New Zealand, on a special mission instituted by the Russian Government, to enquire into and report on the methods of gold-mining practised there.
On his return to Russia he was appointed manager of a group of mines in the Upper Amur district, and held similar positions in the Transbaikal district, at Vladivostok, and in the Government of Perm, latterly as general manager of Count Schouvaloff’s platinum and gold mines. In 1917 he went to Japan where he practised as a consulting engineer. He contributed a paper to the Transactions on ‘Gold and Platinum Alluvial Deposits in Russia’ (vol. xxii 1911-12).
Mr. Perret was elected a Member of the Institution 1909.
Vol. 34, Trans I.M.M., 1924-25, p.572