DALGAIRNS, JOHN DOBREE English Roman Catholic priest, was born in Guernsey on Oct. 21, 1818, and educated at Exeter college, Oxford. Dalgairns became a Roman Catholic in 1845, and with Newman became a member of the Congregation of the Oratory at Rome. On his return to Eng land in 1848 he was attached to the London Oratory, becoming superior on Fr. Faber's death in Sept. 1863. Dalgairns was a prominent member of the well-known "Metaphysical Society." He died on April 6, 1876. His chief works are The Devotion to the Sacred Heart of Jesus, with an Introduction on the History of Jansenism (1853); The German Mystics of the Fourteenth Century (1858) ; The Holy Communion, its Philosophy, Theology and Practice (Dublin, 1861) .
See J. Gillow's Bibliog. Dict. of English Catholics. DALGARNO, GEORGE (c. 1626-1687), British writer, was born at Old Aberdeen. For 3o years a schoolmaster at Oxford and at Elizabeth school, Guernsey, he wrote Ars Signorum (1661), an attempt to formulate a philosophical language in which ideas were represented by letters of the alphabet, and Didascalocophus (168o), the first explanation of the deaf and dumb alphabet. His chief works were reprinted for the Maitland Club in