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

Ptolemaeus

Arabus et Latinus

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% (the percent sign) is the placeholder for no, one or more than one character.

At the beginning and at the end, these placeholders are superfluous.

Oxford, Bodleian Library, Digby 40

s. XIIex-XIIIin.

Or.:

England.

Prov.:

Thomas Allen (f. 1r).

Parchment, IV+145 f., several hands, one of which copied f. 1-8. One or several folia are missing at the end.

Astronomy, physics, computus and natural philosophy: table of contents, added (IVv); Ptolemaica (1r-8r); Philo of Byzantium, Pneumatica ‘Quia tuum amice tui Arzothoni iam novi desiderium ad sciendum…’ (9r-15v); Alkindi, De sompno et vigilia ‘Tu, cui Deus occultorum veritates patefaciat…’ (15v-19r); Roger of Hereford, Computus (21r-50v); computus table 1063-1576 (51v); Abraham Avenezra, Liber de rationibus tabularum (52r-88v); Alfraganus, De scientia astrorum, tr. John of Seville (89r-113r); ‘Cum terra sit rotunda dividitur in quatuor partes…’ (113v-115v); Albategni, De scientia astrorum (116r-145v, end gone). Blank: I-IVr (except for added titles and notes), 8v (except for added notes), 19v-20v (except for added notes and pen trials), 51r.

Lit.

G. D. Macray, Catalogi codicum manuscriptorum Bibliothecae Bodleianae, IX: Codices a viro clarissimo Kenelm Digby, Oxford, 1883, 36-37; O. Pächt, J. J. G. Alexander, Illuminated Manuscripts in the Bodleian Library, Oxford, III: British, Irish, and Icelandic Schools, Oxford, 1973, 30 (no. 292); A. G. Watson, Catalogue of Dated and Datable Manuscripts c. 435-1600 in Oxford Libraries, I, Oxford, 1984, 67 (no. 417); A. Borst, Der karolingische Reichskalender und seine Überlieferung bis ins 12. Jahrhundert, Hannover, 2001, I, 299-300; A. Lohr, Opera de computo saeculi duodecimi, Turnhout, 2015, XLI.

1r‑8r

Images

‘Incipit in nomine domini pii et misericordis incipit liber de compositione universalis astrolabii. Ptolomeus igitur Mercurii incedens vestigiis in libro suo qui vocatur Almagesti de motu sic ait: Ait enim omnis motus aut de puncto aut ad punctum — cum una eademque utrique conveniat ad plenum dicetur. Explicit liber Ptolomei de compositione astrolabii universalis quem scilicet in civitate Londonie ex Arabico in Latinum transtulit, era millesima centesima LXXXV.’