The Latin hymns of this ancient Church will be found in the “Leabhar imuin” (Book of Hymns) and the Bangor Antiphonary, both miscellanies of odes, canticles, blessings, prayers, &c. Altogether the number is upwards of thirty. The “Leabhar imuin” is a MS. of the ninth or tenth century in Trinity College Library, Dublin, of which two thirds have been printed. The first part, edited by the late Dr Todd, appeared in 1855, and contained the following four hymns, with extensive annotations from the “Leabhar Breac,” &c.:—1, The Hymn of St. Sechnall in praise of St. Patrick; 2, The Hymn of St. Ultán in praise of St. Brigit; 3, The Hymn of Cummain Fota in praise of the Apostles; 4, The Hymn of St. Mugint. These are specimens of the terminology of the hymn titles. The Bangor Antiphonary is a MS. in the Ambrosian Library, Milan. It was written between 680 and 691; and was printed by Muratori in 1713. Some of the pieces in this MS. have a historical, as well as a devotional value, such as “The Versicles of the Family of Benchor,” and “The Commemoration of our Abbots,” in which the names of fifteen abbots of the Bangor (County Down) monastery are given in the same order in which their obits occur in the annals. Dr Reeves speaks well of its accuracy, considering that the MS. has been some 1200 years absent from Ireland. These are the sources in which this Latin hymnology of the ancient Gaels will be found. They are not very accessible. As already remarked, versions of them will be also found in the “Leabhar Breac;” some of them were printed by Sir James Ware, in the appendix to his “Opuscula S. Patricii;” while the Isidore Codex of the “Leabhar imuin” recently brought from Rome to Dublin, has never yet been printed. These MSS., written in a peculiar ornate style, have become known to archæologists under the description “libri Scottice Scripti,” (books written in Scotch).