[The following extracts are taken from the text printed by W. S. Logemann in _Anglia_, xiii (1891), 365, from _Cotton MS. Tiberius A. III_, †1020-1030. This MS. has Anglo-Saxon glosses. Other MSS. are in _Cotton MS. Faustina B. III_, and _Bodleian MS. Junius_, 52, ii. Earlier editions of the text are in Reyner, _De Antiquitate Ordinis Benedictinorum in Anglia_, App. iii. p. 77, and Dugdale, _Monasticum Anglicanum_, i. xxvii. The literary history is discussed by W. S. Logemann in _Anglia_, xv (1893), 20; M. Bateson, _Rules for Monks and Canons_ in _English Hist. Review_, ix (1894), 700; and F. Tupper, _History and Texts of the Benedictine Reform of the Tenth Century_, in _Modern Language Notes_, viii. 344. The _Prooemium_ of the document states that it was drawn up by the bishops, abbots, and abbesses of England upon the suggestion of King Edgar at a Council of Winchester, and that certain additions were made to it by Dunstan. The traditional ascription by Cotton’s librarian and others of the authorship of the _Regularis Concordia_ to Dunstan is probably based on this record of the revision which, as archbishop, he naturally gave it. The actual author is thought by Dr. Logemann, and by Dr. Stubbs (_Memorials of Dunstan_, R. S. cx) to have been Ælfric, a monk, first of Abingdon and then of Winchester, who became abbot of Cerne, and in 1005 of Eynsham, and was a considerable writer in Anglo-Saxon. Dr. Logemann’s view is based on a theory that the _Concordia_ is the ‘Regula Aluricii, glossata Anglice’ which occurs amongst the titles of some tracts once in the library of Christ Church, Canterbury (_Anglia_, xv. 25). But the _Concordia_ is more likely to have been the ‘Consuetudines de faciendo servitio divino per annum, glossatae Anglice,’ which is in the same list, and in fact the Canterbury copy is probably that in _Cotton MS. Faustina, B. III_ (_E. H. R._ ix. 708). Perhaps the ‘Regula Aluricii’ was a copy of the letter to the monks of Eynsham, which Ælfric at some date after 1005 based upon the _Concordia_ and the _De Ecclesiasticis Officiis_ of Amalarius of Metz. This is printed, from _C. C. C. C. MS._ 265, by Miss Bateson, in Dean Kitchin’s _Obedientiary Rolls of St. Swithin’s, Winchester_, 173 (_Hampshire Record Soc._). It omits the _Sepulchrum_ and its _Visitatio_. In any case this letter makes it clear that Ælfric was not the author of the _Concordia_, for he says ‘haec pauca de libro consuetudinum quem sanctus Aethelwoldus Wintoniensis episcopus cum coepiscopis et abbatibus tempore Eadgari felicissimi regis Anglorum undique collegit ac monachis instituit observandum.’ The author, therefore, so far as there was a single author, was Ethelwold, whom I take to be the ‘abbas quidam’ of the _Prooemium_. He became Abbot of Abingdon