STONE, Ormond, astronomer, born in Pekin, Illinois, 11 January, 1847. He was educated at Chicago public schools and at the University of Chicago, where he devoted much attention to astronomy. In 1867 he became a tutor in Racine college, and in 1868 he was made professor of mathematics at Northwestern female college, Evanston, Illinois He was appointed assistant at the United States naval observatory in Washington, D. C., in 1870, and in 1875 was given charge of the Cincinnati observatory. In 1882 he was called to the chair of practical astronomy in the University of Virginia, with care of the Leander McCormick observatory, both of which places he now (1888) holds. Professor Stone is a member of scientific societies, and is the author of various papers on astronomy. He edited the "Publications of the Cincinnati Observatory" (No. 1 to 6, Cincinnati, 1877-'82), containing observations of nearly all the known double stars between the equator and 30. south declination, and since 1883 has edited "The Annals of Mathematics" at the University of Virginia.