AMBROS, AUGUST WILHELM distin guished musical historian, was born at Vysoke Myto, Bohemia. From 185o onwards he became well known as a critic and essay writer, and in 186o he began working on his magnum opus, his History of Music, which was published at intervals from 1864 in five volumes, and reissued in a revised and enlarged edition in 1909. Ambros became professor of the history of music at Prague in 1869, and later occupied a similar position at Vienna, where he died.