Paper, 280 f., one main hand.

Astronomy and astrology: computus tables (1v-2r); calendar (3r); astronomical and astrological notes (3va-7rb); Alfonsine tables and other astronomical tables (9r-105r); text on revolutions, in German (105v-107v); ‘De modo componendi almanack’ (113r); horoscope: nativity of someone born on 27 January 1422 (113v); John of Ligneres, Canones primi mobilis (115ra-123va); John of Saxony, Canones (127ra-143rb); Thebit Bencora, De recta imaginatione spere et circulorum eius diversorum (143rb-144va); ‘Est quoque in signis diversitas sexus quia quedam signa dicuntur masculina…’ (144va-144vb); astrological tables: 12 signs and 360 degrees (145r-146v); ‘Cum Luna sit universalis significatrix omnium initiorum…’ (147ra-148va); Arnold of Villanova, Introductorium ad iudicia astrologie quantum pertinet ad medicinam (148vb-153ra); astronomical tables (154r-192v); Alcabitius, Introductorius (193r-217r); ‘Notandum quod planete dicuntur orientales vel occidentales respectu Solis…’ (217v-220v); Liber de effectibus planetarum ‘Quoniam unusquisque planetarum habet amicum et inimicum…’ (221r-224v); ‘Hoc ad horologium 12 horarum per diem et totidem per noctem…’ (224v-226v); astronomical notes ‘Notandum quod Ptholomeus dividit totam terram habitabilem in quatuor partes… ’ (228v); astrological figures and tables summarising the basic doctrines (229r-232r); Albumasar, De electionibus liber (232r-239r); ‘Quando venus fuerit elevatus supra Mercurium…’ (239r-239v); ‘Dixit Ableta filius Zahet Silitus (?) et Albumasar homo non potest cogitate vel facere aliquid…’ (239v-240r); ‘Quando sit optimum omne opus ad faciendum absconsum prospiciatur signum quod emergitur…’ (240v-241r); lunarium ‘Sequitur … (?) generalis modus astronomorum de etate Lune. Luna prima, factus est Adam, quidquid aliquid fecerit bonum…’ (241r-241v); ‘Sciendum quod aliquando planete dicuntur stationarii…’ (241v-242r); ‘Tempus quarti aspectus Solis et Lune invenire…’ (242ra-242vb); Robertus Anglicus, comm. on Sacrobosco’s De sphera (244ra-256vb); Messahallah, Epistola de rebus eclipsium (257ra-259rb); Alkindi (?), Saturnus in Ariete sub radiis…(259rb-260vb); Guillelmus Anglicus, De urina non visa (260vb-263vb); Astronomia Ypocratis (263vb-267rb); ‘Consideratio astrologica. Quando Luna comburitur, vide si illam aspicit Saturnus…’ (267rb-267va); Peter Peregrinus of Maricourt, De magnete (267va-271va); Pseudo-Thebit Bencora, De motu octave spere (271va-273rb); ‘Nota quod Sol in emisperio australi et Venus sub radiis eiusdem…’ (273va-276va); Ptolemaica (276va-278ra). Blank: 1r, 2v, 7v-8v, 108-112, 114, 124-126, 153v, 227r-228r, 243, 278v-280v.

Bibl. P. O. Kristeller, Iter Italicum, III, London-Leiden, 1983, 420; F. Pensel, Verzeichnis der deutschen mittelalterlichen Handschriften in der Universitätsbibliothek Leipzig, Berlin, 1998, 191; R. Lemay, Le Kitāb aṯ-Ṯamara (Liber fructus, Centiloquium) d’Abū Jaʿfar Aḥmad ibn Yūsuf [Ps.-Ptolémée], 1999 [unpublished], I, 420; L. Moulinier-Brogi, Guillaume l’Anglais, le frondeur de l’uroscopie médiévale (XIIIe siècle), Genève, 2011, 213.