Fragments of manuscripts found with MS 540B, possibly once part of Peniarth MS 326 (see D. Huws, 'A Welsh manuscript of Bede's De natura rerum', Bulletin of the Board of Celtic Studies, XXVII, p. 492). They comprise a leaf from Gerard of Cremona's Latin translation of Aristotle, De Caelo et terra, XIII cent. (f. l); a leaf of the Middle English Dives and Pauper, XV cent. (see NLWJ, xxii, p. 347) (f. 2); a fragment of a petition in Chancery of [ ] of 'Kellilyfday' [Gellilyfdy] concerning a book borrowed in 1643 by Thomas Jones of Kirchynan [Flintshire] and not returned, the petitioner no doubt being John Jones, Gellilyfdy (f. 3); a flyleaf of a book with Latin tags, an englyn and the name Richard Mores, XVII cent. (f. 4); a bon mot of Dr John Wilkins, Bishop of Chester, XVIII cent. (f. 5); a theological treatise entitled Circa generaliores regulas moralis Christianae sententiae aliquot quibus passim se opponit Schola Theologica Louanensis, XVII cent. (ff. 6-11); and an inventory of the goods of Thomas Wilkins, papermaker, of the parish of West Drayton, Middlesex, 1729, including the stock of a paper-mill (f. 12).

[A transcript of?] a metrical version of the Life of St Wulstan ('Vita viri sancti Wlstani scripta roganti / pontifici metrico modulo brevitatis amico'); and a metrical summary of the Bible by Petrus Riga.

[A transcript of] the life of St Cadog by Lifris.
It contains the following note: 'Henricus nominus scripsit'. There are two loose leaves from another Latin manuscript at the beginning of the volume.