CORNELL, John Henry, musician, born in New York City, 8 May, 1828. In 1848 he was appointed organist of St. John's chapel (Trinity parish) in his native City, where he had until that time pursued his musical studies, especially harmony and composition. Within a year he resigned and went to England, where he visited the chief cathedral cities. At York he united with the Roman Catholic church, and, returning to the United States, entered a religious order in Baltimore. He withdrew from the order and made a tour of England, Holland, and Germany. From 1868 till 1877 he was organist of St. Paul's chapel (Trinity parish), New York City, and subsequently for five years organist of the Brick church. His chief works are a "Primer of Modern Musical Tonality," " Practice of Sight-Singing," "Theory and Practice of Musical Form," adapted from the German of Ludwig Bussler, "Easy Method of Modulation," "A Manual of Roman Chant" (Baltimore), and a "Congregational Tune-Book" (New York, 1872).