Project icon: lavishly furnished initial letter with a painting of Ptolemy using an astrolab.

Ptolemaeus Arabus et Latinus

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Florence, Biblioteca Medicea Laurenziana, Plut. 18 sin. 3

s. XIV.


Florence, church Santa Croce.

Parchment, II+117 f., a single neat hand, decorated initials.

Arithmetic, astronomy and computus: table of contents, added (IIr); star table, added (IIr); Sacrobosco, Algorismus (1ra-8va); Sacrobosco, De sphera (8vb-25rb); Sacrobosco, Computus (25va-50vb); Pseudo-Robert Grosseteste, Kalendarium (51r-58r); Robertus Anglicus, Quadrans vetus (59ra-66rb), with solar tables 1292-1295 for Paris (66r-68r); Pseudo-Messahallah, De compositione astrolabii (68va-90ra); Theorica planetarum Gerardi (90ra-101va); Pseudo-Thebit Bencora, De motu octave spere (101va-106rb); Ptolemaica (106va-111va); Thebit Bencora, De recta imaginatione spere et circulorum eius diversorum (111va-114ra); Thebit Bencora (?), De quantitate stellarum et planetarum et proportione terre (114ra-116vb); astronomical table, added by a later hand (107v). Blank: Ir, IIv, 58v, 107r.


A. M. Bandini, Catalogus Codicum Latinorum Bibliothecae Mediceae Laurentianae, IV, Firenze, 1777, 131-132.


‘Incipit liber Tebit de hiis que indigent expositione antequam legatur Almagesti. Equator diei est circulus maior qui describitur super duos polos orbis ― aut propinqui oppositioni Solis erunt tunc retrogradi. Explicit Thebith.’

= Thebit Bencora, De hiis que indigent expositione antequam legatur Almagesti (C.1.1). No glosses.