Samuel Arnold, Mus. Doc, an English composer, born in London, Aug. 10,1740, died there, Oct. 22, 1802. At the age of 23 he became composer to Covent Garden theatre, and in 1766 also to the Haymarket, in 1789 conductor of the academy of ancient music, and in 1793 organist of Westminster abbey. He published 47 operas, of which " The Maid of the Mill" was for many years a favorite on the stage. "The Prodigal Son," an oratorio, also had remarkable success. About 1786 he published a collection of cathedral music (4 vols.), which has always been held in high esteem. He undertook, under the patronage of George III., an edition in score of Handel's works, of which he published 40 volumes.