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Ptolemaeus Arabus et Latinus

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Chicago, The Newberry Library, Case 93-2

s. XV2 (f. 2r-97v were most probably copied between 1453 and 1456, since, in a note f. 93r, George of Trebizond, referring to his age, wrote 60 over 58, cf. Saenger, who used ultraviolet lamp).


Italy (Naples and Rome), George of Trebizond corrected and annotated f. 2r-97v, added the end of the commentary to the Centiloquium f. 90v-93r and copied f. 98r-106r. Theodore Buchinck wrote the headings f. 2r and 13r (Monfasani).

Paper, 106 f., only sporadically numbered, two hands (f. 2r-97v and 98r-106r).

Astrology: Ptolemaica (2r-93r); George of Trebizond, Liber de antisciis et cur astrologorum iudicia plerumque fallant (90v-106r). Blank: 1, 106v.


J. Monfasani, Collectanea Trapezuntiana: Texts, Documents, and Bibliographies of George of Trebizond, Binghamton (NY), 1984, 13-14; P. Saenger, A Catalogue of the Pre-1500 Western Manuscript Books at the Newberry Library, Chicago-London, 1989, 177-178.


‘Liber Claudii Ptolomei qui vocatur fructus ad illustrissimum Alfonsum regem Aragonum et utriusque Siciliae a Georgio Trapenzuntio ex Graeco in Latinum versus. <I>am pridem perutiles ad previdendum operationes stellarum, o Syre, quas in hoc composito efficiunt mundo exposuimus… Primus amphorismus. <A>bs te et a scientia, non est enim possibile ut huius scientiae professor particulares rerum ideas prevideat — (12v) Sin vero non moventur hostis indigena erit. Finis. (13r) Commentarii et expositiones Georgii Trapezuntii in aphorismis libri fructus Ptolomei ad Alfonsum regem Aragonum et utriusque Sicilie. <L>ibellus hic quem de Graeco traductum nomini tuo dedicavimus, illustrissime rex… (15r) <A>bs te et a scientia. Abs te, inquit, hoc est a quadam insita vi animi et ingenio et a scientia nature stellarum precognitio fit — (90v) nec oratoribus quidem ignotus est. Est autem distantia a XI signorum in iis solum cometis qui apparent — ut sicut raro apparent, sic inconsueta significare videantur.’

= Pseudo-Ptolemy, Centiloquium (tr. George of Trebizond) (B.1.7), without George of Trebizond’s preface. Author’s preface, 2r; text, 2r-12v; commentary, 13r-93r (with the end of the commentary ‘Est autem distantia a XI signorum…’ added by George of Trebizond in the margin of f. 90v-93v). Corrections and annotations, sometimes substantial, by George of Trebizond.