The Lord's Prayer consists of half a dozen lines; the Sacramentarius and Antiphonarius of Gregory fill 880 folio pages, (tom. iii. p. i. p. 1 - 880;) yet these only constitute a part of the Ordo Romanus, which Mabillon has illustrated and Fleury has abridged, (Hist. Eccles. tom. viii. p. 139 - 152.)