The Book of Durrow, by L. de Paor.--The Book of Kells, by W. O'Sullivan.--The Lindisfarne gospels, by R. L. S. Bruce-Mitford.--The Stowe missal, by F. J. Byrne.--The Book of Armagh, by L. Bieler.--Leabhar na huidhre, by D. Greene.--The Book of Uí Mhaine, by R. A. Breatnack.--The Annals of the Four Masters, by C. Giblin.