The astronomical tables of Arzachel (Abū Ishāk Ibrāhīm ben Yaḥya, al Naḳḳash, al Zarkalī), preceded by an English liturgical calendar to which st. Frideswide has been added later (fol. 1), and followed by further tables drawn up at Paris (fol. 49). The marginalia (of about 1300) in the calendar have been copied in a 17th-cent. hand on fol. iiv.