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Utrecht, Universiteitsbibliotheek, 6.A.3 (725)

s. XV^ex-XVIⁱⁿ.

Paper, 246 f., a single hand.

Astronomy and mathematics: calendar, incomplete (1v-2r); Ptolemaica (4r-10r); John of Murs, De arte mensurandi (12r-90v); Jordanus de Nemore, De plana spera (91r-98r); Jordanus de Nemore, De ratione ponderis (98r-105v); ‘Incipit tractatus de proportione mixtorum. Si fuerit aliquod corpus mixtum…’ (106r-108r, including Liber de canonio on f. 106r-107v and Heron’s theorem on f. 107v-108r); Archimedes, Tractatus de incidentibus in humidum corporibus (108r-110v); Menelaus, Spherica (111r-164v); Nicole Oresme, Algorismus proportionum (165r-171v); Nicole Oresme, De commensurabilitate motuum celestium (172r-193v); Campanus of Novara, Compotus maior, c. 10, entitled ‘Expositio tractatus Thebit Benchorat de motu octavae sphaerae’ (193v-199v), with Pseudo-Thebit Bencora’s De motu octave spere copied in the margin of f. 194v-195v; notes of chronology and astronomy ‘Anni a diluvio ad Christum sunt 3101…’ (200r-200v); ‘Sequuntur naturae et positiones ymaginum septentrionalium tempore Ptolomaei… ex Almagesto libro septimo…’ (201r-201v); William of Saint-Cloud, Almanach planetarum 1293-1311, canons only (201v-204r); Pietro d’Abano, De motu octave sphere (204v-206r); Johannes de Harelbeke, Tractatus de spera solida (206v-211r); Theorica planetarum ‘Ego aggregavi in hoc libro multa et satis specialia…’ (212r-213r); ‘Tractatus de situ imaginum caelestium deque earum motu atque nominibus. Imagines quidem sub astronomi consideratione…’ (214r-217v); Henry of Langenstein, De reprobatione eccentricorum et epiciclorum (218r-246r). Blank: 1r, 2v-3v, 10v-11v, 211v, 213v, 246v.

Bibl. Catalogus codicum manu scriptorum Bibliothecae Universitatis Rheno-Trajectinae, I, Utrecht-Den Haag, 1887, 190-191 (no. 725); R. I. Harper, The Kalendarium Regine of Guillaume de St.-Cloud, PhD dissertation, Emory University, 1966, 21-22; P. O. Kristeller, Iter Italicum, IV, London-Leiden, 1989, 382; H. L. L. Busard, Johannes de Muris: De arte mensurandi, Stuttgart, 1998, 57-59.

4r–⁠10r Images	‘Incipit liber Almagesti Ptholomei abbreviatus. Prefatio sex continens conclusiones. Omnium recte phylozophantium non solum verissimilibus et credibilibus argumentis — de duobus reliquis triangulis orthogoniis duarum.’ = Liber Almagesti Ptholomei abbreviatus (C.1.24) , apparently incomplete or unfinished, with f. 8v-9v (and also 10v-11v) left blank. No glosses.