Astronomical text listed in the table of contents as 'Tractatus de naturiis planetarum', incipit: 'Saturnus est primus que scripsimus...' Decoration: Initials in red. Includes two tables (ff. 133v, 133r).
Alkindus (al-Kindi), De mutatione temporum, here attributed to Dorotheus and listed as the 'Tractatus de imbribus et pluviis' in the table of contents. Decoration: Initials in blue.
Exafenon, attributed to Richard of Wallingford (entitled 'Liber fratris Perscrutatoris de impressionibus aeris' in the table of contents). Decoration: Initials in blue.
Iohannes de Sacro Bosco, De sphera. Decoration: 4 diagrams in red ink of planetary spheres (f. 4v), and lunar and solar eclipses (f. 12r). Initials in red and blue.
Ars minutiarum attributed to Richard of Geddinge, incipit: ‘Cum minor quantitas aliquotiens sumpta.’ These two quires originally formed part of a different manuscript. The beginning of the following text on f. 47v was crossed out and the word 'explicit' was provided in the margin by Roger Marsc...
Ars fabricandi instrumentum horarum immobile quod vocatur Dialle
Scope & Content:
The text entitled Ars fabricandi instrumentum horarum immobile quod vocatur Dialle, incipit: 'Ut facias artificialiter...' This quire originally formed part of a different manuscript and bears a separate medieval foliation. Decoration: Initials in blue with red pen-flourishing and paraphs in ...
De expositione nominum astronomie, attributed to Thebit ben Corat
Scope & Content:
De expositione nominum astronomie, attributed to Thebit ben Corat in the table of contents, incipit: 'Diem? omni in horarum...' F. 119r is a palimpsest. The text was written over an erased diagram. A part of a similar unfinished diagram is on f. 131v. Decoration: Initials in blue. 12 diagram...