volume I, _Il medio evo_, Milan, 1913 (2 parts in

separate volumes).

Manitius Manitius (M.), _Geschichte der lateinischen Literatur des Mittelalters_, Munich, 1911, 2 vols. (in Von Mueller’s Handbuch der klassischen Alterthums-Wissenschaft, IX, ii).

Mearns Mearns (J.), _Early Latin hymnaries_, an index of hymns in hymnaries before 1100, Cambridge (University Press), 1913.

MGH _Monumenta Germaniæ historica_ (cited by page of the appropriate volume).

NE _Notices et extraits des manuscrits de la Bibliothèque Nationale ..._ (cited by volume, part, and page).

PL _Patrologia latina_ (Migne, cited by volume and column).