CARHART, Henry Smith, physicist, born in Coeyman's, New York, 27 March, 1844. He was graduated at Wesleyan University in 1869, and since has studied variously at the universities of Yale, Harvard, and Berlin. From 1869 to 1871 he taught Latin in Claverack College, and in 1872 he became instructor of civil engineering and physics in the Northwestern University, Evanston, Illinois In 1873 he was made full professor of physics, and from 1876 till 1886 was also professor of chemistry. He became in 1886 professor of physics at the University of Michigan. During 1881-'2 he studied in Europe, and was a member of the International jury of award at the electrical exhibition, Paris. Prof. Carhart has contributed to the "Popular Science Monthly," "American Journal of Science," and other scientific periodicals, and is a member of the American association for the advancement of science, and of the American electrical society, to whose proceedings he has frequently contributed.