PAGE, Charles Grafton, physicist, born in Salem, Massachusetts, 25 January, 1812; died in Washington, D. C., 5 May, 1868. He was graduated at Harvard in 1832, and then studied medicine in Boston. In 1838 he settled in Virginia and there followed his profession for two years, when he was called to the chair of chemistry in Columbian university, Washington, D.C. He was made examiner in the patent-office in 1840, when there were but two examiners in that office, and continued in that place until his death. As a boy he showed great fondness for scientific studies, and at the age of ten years built an electric machine. He continued his studies in that branch of science throughout his life, and was an accepted authority on the subject. He had for years been engaged in perfecting machinery for the effective and economical use of electro-magnetism as a motive power, and at the time of his death had so far succeeded as to be able to use it for the propulsion of machinery, and to some extent as a locomotive force. Among other things the original discovery of the Ruhmkorff coil is claimed for him. Dr. Page was. a frequent contributor to various literary and scientific periodicals, particularly to the " American Journal of Science," and wag the author of "Psychomancy, Spirit-Rappings, and Table-Tippings Exposed" (New York, 1853).