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Ptolemaeus

Arabus et Latinus

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Vatican, Biblioteca Apostolica Vaticana, Reg. lat. 1285

s. XIII.

Or.:

northern Italy.

Parchment, 162 f., one or several very similar hands.

Astrology and astronomy: table of contents, late medieval (inner front cover); Ibn al-Ṣaffār, De opere astrolabii, anonymous tr. (1ra-8rb); canons of Toledan tables (8rb-12vb); tables for fractions (13r-13v); algorism ‘Incipit introductorius liber qui et pulveris dicitur…’ (14ra-20vb); canons of Toledan tables (21ra-36ra); astrolabe ‘Astrologie speculationis exercitium habere volentibus…’ (36ra-38rb); Pseudo-Messahallah, De compositione astrolabii, second part on use (38rb-41rb); canons of Toledan tables (41rb-42ra); Ptolemaica (42ra-42vb); Zael, Introductorium, 18 and 17 (42va-42vb); Albumasar, De magnis coniunctionibus (43ra-99vb); Liber erarum (99vb-102v); Ptolemaica (103ra-138r and 138r-138va); Alcabitius, Introductorius (139ra-151vb); elections from the aspects of the Moon with the other planets (152r); ‘Cum fuerit Luna cum Capite vel Cauda in uno signo est dies cavenda in omnibus…’ (152ra-152va); Ptolemaica (153ra-162ra).

Lit.

E. Narducci, ‘Sur un manuscrit du Vatican du XIVe siècle contenant un traité de calcul emprunté à la méthode «Gobâri»’, Extrait du Bulletin des Sciences Mathématiques, 2e série, 7 (1883), 247-256; J. L. Heiberg, Claudii Ptolemaei opera quae exstant omnia, II: Opera astronomica minora, Leipzig, 1907, xii; Les manuscrits de la reine de Suède au Vatican. Réédition du catalogue de Montfaucon et cotes actuelles, Vaticano, 1964 [Studi e Testi, 238], 33 (no. 501); F. S. Pedersen, The Toledan Tables. A Review of the Manuscripts and the Textual Versions with an Edition, København, 2002, I, 180.

42ra‑42va

‘Verbum 10: Uti oportet infortunis in electionibus sicut periti medici utuntur venenosis secundum competentem quantitatem. Verbum 14: Quantus erit error astrologi — Verbum 94: Locus fortioris significatoris in interrogatione signabit quod est in animo interrogantis.’

= Pseudo-Ptolemy, Centiloquium (tr. Plato of Tivoli) (B.1.2)

, v. 10, 14, 19-22, 38, 41, 54-59, 86, 91 and 94, without the commentary. A few short marginal notes by the scribe.

103ra‑138rb

‘Incipit liber 4 tractatuum Ptolomei Alfilludhi in scientia iudiciorum astrorum et in primo tractatu sunt 24 capitula. Capitulum primum in collectione intellectus scientie iudiciorum astrorum. <R>erum, Yesure, in quibus est prognosticabilis scientie stellarum profectio magnas et precipuas duas esse deprehendimus — hoc in loco huic libro finem inponere non incongruum existimamus. Explicit liber quatuor Batloon (?) in iudicandi discretione per stellas de futuris et in hoc mundo constitutionis et desctructionis contingentibus.’

= Ptolemy, Quadripartitum (tr. Plato of Tivoli) (A.2.1)

. I, 103ra-111va; II, 111va-119va; III, 119va-131rb; IV, 131rb-138rb. Substantial glosses by the scribe, some of which introduced by ‘In alio’, ‘In alio libro’, ‘Dixit Ali…’ or ‘Sensus huius littere…’.

138rb‑138va

‘Scientia proicetionis radiorum. Cum proiectionem radiorum stellarum scire volueris, scias gradum ascendentis — erit locus radiationis equate.’

153ra‑162ra

‘Planisperium Ptolomei Hermanni secundi translatio. Quemadmodum Ptolomeus et ante eum nonnulli veteris auctoritatis viri antiquas seculi scribunt ystorias… (153vb) Cum sit possibile, Iesure, et plerumque necessarium ut in plano represententur circuli in speram corpoream incidentes — et secundum hoc perficietur tibi quod volueris de scientia tabularum. Et laus sit Deo creatori gentium.’

= Ptolemy, Planispherium (tr. Hermann of Carinthia) (A.6.1)

, Class II. A few glosses by the scribe.