A composite manuscript, containing texts made between the early eleventh and late twelfth century.

The manuscript includes a calendar; Latin-Old Cornish glossary; Lives of Welsh saints ('Vita Sanctorum Wallensium'); excerpts from Bede's Historia ecclesiastica gentis Anglorum; Gilbert Crispin, De spiritu sancto, and an Altercatio inter Urbanum et Clementem and a letter-book of Wolfstan (d. 1023), bishop of Worcester and archbishop of York.