ILES, Malvern Wells, metallurgist, born in Midway, Kentucky, 7 August, 1852. He was graduated at Columbia school of mines in 1875, and became a fellow at the Johns Hopkins university, where he spent two years in researches on the sulphurie acids of xvlol. Subsequently he was chemist and assayer to the Utica mining and milling company, and later metallurgist to the Omaha and Grant smelting company, and superintendent and metallurgist to the Holden smelting company in Denver, Colorado he received the degree of Ph.D. from Columbia in 1876, and his researches, originally in pure chemistry, have gradually extended to improvements in the smelting of lead and silver, in which branch he is an accepted authority. His scientific papers, nearly fifty in number, have been contributed to the "American Journal of Science," " The American Chemical Journal," and other like periodicals. Dr. Iles is a member of scientific societies both in the United States and Europe.