BIBLIOGRAPHY: I. Ancient.--George Cassander, _Hymni ecclesiastici_ (Cologne, 1556); Georgius Fabricius, _Poëtarum veterum ecclesiasticorum_ (Frankfort, 1578); Cardinal J. M. Thomasius, _Hymnarium in Opera_, ii. 351 seq. (Rome, 1747); A. J. Rambach, _Anthologie christlicher Gesänge_ (Altona, 1817); H. A. Daniel, _Thesaurus hymnologicus_ (Leipzig, 5 vols., 1841-1856); J. M. Neale, _Hymni ecclesiae et sequentiae_ (London, 1851-1852); and _Hymns of the Eastern Church_ (1863). The dissertation prefixed to the second volume of the _Acta sanctorum_ of the Bollandists; Cardinal J. B. Pitra, _Hymnographie de l'église grecque_ (1867), _Analecta sacra_ (1876); W. Christ and M. Paranikas, _Anthologia Graeca carminum Christianorum_ (Leipzig, 1871); F. A. March, _Latin Hymns with English Notes_ (New York, 1875); R. C. Trench, _Sacred Latin Poetry_ (London, 4th ed., 1874); J. Pauly, _Hymni breviarii Romani_ (Aix-la-Chapelle, 3 vols., 1868-1870); Pimont, _Les Hymnes du bréviaire romain_ (vols. 1-3, 1874-1884, unfinished); A. W. F. Fischer, _Kirchenlieder-Lexicon_ (Gotha, 1878-1879); J. Kayser, _Beiträge zur Geschichte der ältesten Kirchenhymnen_ (1881); M. Manitius, _Geschichte der christlichen lateinischen Poesie_ (Stuttgart, 1891); John Julian, _Dictionary of Hymnology_ (1892, new ed. 1907). For criticisms of metre, see also Huemer, _Untersuchungen über die ältesten christlichen Rhythmen_ (1879); E. Bouvy, _Poètes et mélodes_ (Nîmes, 1886); C. Krumbacher, _Geschichte der byzantinischen Literatur_ (Munich, 1897, p. 700 seq.); J. M. Neale, Latin dissertation prefixed to Daniel's _Thesaurus_, vol. 5; and D. J. Donahoe, _Early Christian Hymns_ (London, 1909).