Ptolemaeus Arabus et Latinus

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Cambridge, Peterhouse, 52

s. XIIIex-XIVin.


England (f. 115-118; the core of the MS is in an Italian hand with English decoration, see Thomson).


John of Stockton (doctor of medicine, fellow of Peterhouse in 1339 and rector of Brighton), who gave the MS to Peterhouse, cf. f. 143r: ‘Iste liber constat magistro Iohannis de Stockon de Brynton Lyncoln<ensis> dioc<esis> super Broneswolde’, and f. Iv: ‘Iste liber constat communitati domus Sancti Petri ex legato magistri Iohannis de Stoketon, doctoris in medicina, cuius anime propicietur Deus’.

Parchment, I+143 f., a single hand, except for the Ptolemaic section, added slightly later by another hand, painted initials at the beginning of each section, numerous decorated initials.

Medicine and astrology: table of contents, 15th c. (Iv); Gilbertus Anglicus, Compendium medicine (1ra-92rb); ‘Causarum vero sunt IIII species, utiles, efficientes, formales et finales…’ (92va-94vb); Mattheus Platearius, De simplicibus medicine (95ra-110ra); Antidotarium Nicolai (110ra-115rb); Ptolemaica (115va-118vb); Mattheus Platearius, Practica brevis, incomplete (119ra-142rb). Blank: Ir, 142v-143.

Bibl. M. R. James, A descriptive catalogue of the Manuscripts in the Library of Peterhouse, Cambridge, 1899, 72-73; R. Lemay, Le Kitāb aṯ-Ṯamara (Liber fructus, Centiloquium) d’Abū Jaʿfar Aḥmad ibn Yūsuf [Ps.-Ptolémée], 1999 [unpublished], I, 235-236; R. M. Thomson, A descriptive Catalogue of the Medieval Manuscripts in the Library of Peterhouse, Cambridge, Cambridge, 2016, 30.


‘Scientia stellarum et ex te et illis est. Astrologus non debet dicere rem specialiter sed universaliter… Haly. Dixit Ptholomeus: Iam scripsi tibi, Yesure, id est domine, libros, scilicet in Quadripartito, de hoc quod operantur stelle in hoc seculo — Et ego Deum precor ut te dirigat. Et perfecta est huius libri translatio 3o die mensis Martii, secundo die mensis Cuinedi (?) secundi Arabum 309. Explicit.’