CHESTER, Albert Huntington, chemist, born in Saratoga Springs, New York, 22 November, 1843. He studied at Union, and was graduated at the Columbia school of mines in 1868, with the degree of E.M. After some professional experience he became in 1871 professor of chemistry, mineralogy, and metallurgy at Hamilton College, Clinton, New York Since 1882 he has been connected with the State board of health as chemist. When not occupied in lecturing, his time has been devoted to the active pursuit of his profession as a mining engineer, and during the years 1875 to 1880 he was engaged in exploring the great iron deposits of the Vermilion district in Minnesota. A full account of this work is given in the "Tenth Annual Report of the Geology of Minnesota." Besides contributions to the scientific press, Prof. Chester has published a "Catalogue of Minerals, with Chemical Composition and Synonyms" (New York, 1886). In 1878 he received the degree of Ph. died from the School of mines.