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Ptolemaeus

Arabus et Latinus

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Burgo de Osma, Archivo de la Catedral, 7

s. XIex-XIIin.

Or.:

Spain.

Prov.:

cathedral of Burgo de Osma by the end of the 13th c.

Parchment, 146 f., one main hand, illustrated MS, decorated initials.

Scientific texts: Cicero, De inventione (1v-30v); two diagrams showing the divisions of knowledge (30v-31r); unfinished astronomical diagram showing the 12 months and the 12 signs (31v); Bernelinus of Paris, Liber abaci (32r-51r); ‘De diminutis cuiusdam incipit liber. Cum passione contraria id est diminutione…’ (51v-54v); short chapters of metrology: ‘De ponderibus. Ad est unciarum XII…’ (54v), ‘De libra et partibus eius. Libra vel as…’ (54v), ‘De unciis et partibus eius. Uncia viginti scripulos…’ (54v-55r) and ‘De scripulo et partibus eius. Unus item scripulus calcis…’ (55r); ‘De multiplicatio numerorum. Quinquies I, V…’ (55r-56v); ‘Incipit liber de computo digitorum. Cum dicis unum…’ (57r-60r); abacus drawings, partly filled (60v-61r); Bede, De natura rerum (62v-72r); compilation of computus ‘Cronica dicitur Grece, latine temporum series…’ (72r-78v); ‘Versus orologii. Spera caeli quater senis horis…’ (78v-79r, with incomplete drawing of an horologium nocturnum f. 79r); ‘Versus horarumve mensuum. Que horarum repperiri…’ (79v); ‘Argumentum ad horas inveniendas. Si scire cupis quomodo dies et noctes crescunt…’ (79v-80r, with drawing of an horologium f. 80r); diagram of planetary absides following Pliny (80v); chronology of Roman emperors (81r); chronology of popes up to Innocent III (1198-1216), added by another hand (81v-82v); celestial map of northern constellations (84v); Pseudo-Bede, De signis caeli (85r-87v); Excerptum de astrologia Arati (87r-88r); collection of astronomical verses: ‘Ad bores (!) partes arctoi vertuntur…’ (88r), ‘Primus adest Aries obscuro…’ (88va) and ‘Signifer aetherius (!) mundus quo cingitur…’ (88va); verses on the ten plagues of Egypt ‘Prima plaga Egipti limphas in sanguine…’ (88vb); Ptolemaica (89r-89v); tonitruale ‘Inckpit (!) tonitrualis per singulos menses. In signo autem Arietis si tonuerit, sicut Egipti scribunt…’ (89v-90r); tonitruale ‘Item ut supra. In mense Ianuarii. Luna I si tonuerit venti magni erunt… Dat hic Aristotelis finem operis philosophi’ (90r-91v); Proportiones competentes in astrorum industria, Versio A (92v-111r); short computus chapters: ‘Argumenti Lune… De cursu Solis… De magnitudine signorum… De annis… De saltu Lune’ (111v-113r); representation of a sundial (114r); representation of man with the four elements, seasons and humors (114v); Macrobius, Commentarii in somnium Scipionis (115r-144v); ‘Fenix Arabie avis dicta…’ (145r); fainted representation of an astronomical instrument, possibly an astrolabe (145v); torn page (146). Blank: 61v-62r, 83v-84r, 92r, 113v.

Lit.

T. Rojo Orcajo, Catálogo descriptivo de los códices que se conservan en la Santa Iglesia Catedral de Burgo de Osma, Madrid, 1929, 56-60 (= Boletín de la Real Academia de la Historia 94 (1929), 706-710); B. Munk Olsen, L’étude des auteurs classiques latins aux XIe et XIIe siècles, I, Paris, 1982, 159; A. García Avilés, El tiempo y los astros. Arte, ciencia y religión en la alta edad media, Murcia, 2001, 53-72; D. Juste, Les Alchandreana primitifs. Étude sur les plus anciens traités astrologiques latins d’origine arabe (xe siècle), Leiden-Boston, 2007, 87-94 and 299-304.

89r‑89v

‘Prima die mensis Septembris, id est Carius, appareret cum Solis ortu, mutatur aer — Vicesima die mensis eiusdem [Augusti] Protigitur apparet, scilicet VIIIa et Oistos ponet, est autem finis dekymos post dies XL.’

= Pseudo-Ptolemy, De temporum mutatione (B.9)

, incomplete. No glosses.