A text entitled 'De sole', incipit: 'Annis arabum 691 perfectis.' It contains predictions of eclipses of the sun for the years 1293-1311 and of the moon for the years 1293-1300.
Thebit ben Corat, De recta imaginatione spere (in the Latin translation). Decoration: An illuminated initial 'N'(os) in gold and colours at the beginning of the text (f. 122r).
Jordanus de Nemore, De plana spera. Decoration: An illuminated initial 'S'(peram) in gold and colours at the beginning of the text (f. 124v). Includes geometrical diagrams of the sphere in the margins (ff. 125v-128v).
Messahala, De cogitationibus ab intentione. Decoration: 1 illuminated initial 'P'(recipit) in colours and gold, at the beginning of the text with a quide letter 'p' in the marigin (f. 173r)
Theodosius, De spheris (in a Latin translation). Decoration: 1 illuminated initial 'S'(pera) in colours and gold, at the beginning of the text, with a guide letter 's' in the margin (f. 175v). Includes a series of geometrical diagrams of the sphere (ff. 176r-177r), some unfinished (ff. 177v-179r).