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Vatican, Biblioteca Apostolica Vaticana, Reg. lat. 1261

Date:

s. XIII² (Björnbo and Clagett mistakenly dated the MS to the 14^th c.).

Or.:

France, probably Paris (the MS is glossed by Peter of Limoges and its scribe also copied texts on astrology, geometry and optics in MS Paris, BnF, lat. 7434 (f. 72r-101v), a composite MS assembled, partly copied and glossed by Peter of Limoges).

Prov.:

Peter of Limoges; perhaps college of Sorbonne; Queen Christina of Sweden.

Parchment, I+296 f., a single neat hand, decorated initials.

Geometry, astronomy, astrology and arithmetic: table of contents, medieval (Iv); Ptolemaica (1r-49r); two diagrams and a note on retrogradation ‘Nota: P est centrum terre, O centrum ecentrici deferentis…’ (49v); Jordanus de Nemore, De ratione ponderis (50r-56r); Liber de canonio (56r-58r); Robert Grosseteste, De cometis (58r-59r); Richard of Fournival, Nativitas (59r-60v); Euclid, Elementa, ed. Campanus of Novara (61r-197v); Campanus of Novara, reworking of Theodosius’s Spherica (197v-222v); Menelaus, Spherica (223r-257v); Jordanus de Nemore, De plana spera (257v-261v); Alhazen, De speculis comburentibus (262r-265r); Apollonius, Liber de pyramidibus (265r-266r); Gernardus, Algorismus demonstratus (266v-289r); ‘Cuiuslibet artis studium ad astronomiam spectat… Tres circulos in astrolapsu descriptos…’ (289r); ‘Practica geometrie. Geometrie due sunt partes principales…’ (289v-292v); geometry ‘Artis cuiuslibet consummatio…’ (292v-296v).

Bibl. A. A. Björnbo, Studien über Menelaos’ Sphärik. Beitrage zur Geschichte der Sphärik und Trigonometrie der Griechen, Leipzig, 1902, 146-150; A. Birkenmajer, ‘Pierre de Limoges commentateur de Richard de Fournival’, Isis 40 (1949), 18-31: 19-25 and 27 (reprinted in A. Birkenmajer, Etudes d’histoire des sciences et de la philosophie du Moyen Age, Wroclaw, 1970, 222-235); Les manuscrits de la reine de Suède au Vatican. Réédition du catalogue de Montfaucon et cotes actuelles, Vaticano, 1964 [Studi e Testi, 238], 63 (no. 1151); M. Clagett, Archimedes in the Middles Ages, I, Madison, 1964, xxviii; P. O. Kristeller, Iter Italicum, II, London-Leiden, 1977, 595; C. Panti, Moti, virtù e motori celesti nella cosmologia di Roberto Grossatesta. Studio ed edizione dei trattati De sphaera, De cometis, De motu supercelestium, Firenze, 2001, 254; H. Zepeda, The First Latin Treatise on Ptolemy’s Astronomy: The Almagesti minor (c. 1200), Turnhout, 2018, 56.

1r–⁠49r	‘Incipit liber primus Almagesti minoris. Omnium recte philosophantium non solum verisimilibus et credibilibus argumentis — tenebrarum sic se habent. Explicit liber sextus Almagesti minoris.’ = Almagesti minor (C.1.4) . Glosses by Peter of Limoges f. 2r, 4v, 6r, 7v, 19r, 19v, 24v, 31v, 32v, 33r, 48r. A short gloss by a later hand f. 12v. The work is labelled ‘Liber Almagesti demonstratus, libri 6’ in the table of contents f. Iv. This section was most probably copied on MS Paris, BnF, lat. 16657 (see).

1r–⁠49r

‘Incipit liber primus Almagesti minoris. Omnium recte philosophantium non solum verisimilibus et credibilibus argumentis — tenebrarum sic se habent. Explicit liber sextus Almagesti minoris.’

= Almagesti minor (C.1.4)

. Glosses by Peter of Limoges f. 2r, 4v, 6r, 7v, 19r, 19v, 24v, 31v, 32v, 33r, 48r. A short gloss by a later hand f. 12v. The work is labelled ‘Liber Almagesti demonstratus, libri 6’ in the table of contents f. Iv. This section was most probably copied on MS Paris, BnF, lat. 16657 (see).