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Ptolemaeus Arabus et Latinus

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Cambridge, Gonville and Caius College, 174 (95)

s. XIV (pp. 1-96).

Parchment (pp. 1-96) and paper, 558 pp. Composite MS made of eight parts (pp. 1-96, 97-394, 395-450, 451-486, 487-492, 493-542, 543-550, 551-558). The first part (pp. 1-96) is in two or three hands, one of which copied pp. 24-95.

Astronomy (pp. 1-96): Sacrobosco, De sphera (1a-12b); Theorica planetarum Gerardi (13a-23b); Pseudo-Messahallah, De compositione astrolabii (24a-53b); Ptolemaica (53b-55b); Johannes Peckham, De sphera (55b-75b); Petrus de Sancto Audomaro, Quadrans novus (76a-92b); John of Saxony, almanac 1336-1380, canons ‘Cum animadverterem quamplurimos magistros et scholars…’ (93a-95a). Blank: 96. The second and third parts of the MS (pp. 97-450, 16th c.) contain texts of astronomy, computus and natural philosophy, and the remaining parts (pp. 451-558, 14th-16th c.) are concerned with non-scientific matters in Latin, English and French.


M. R. James, A Descriptive Catalogue of the Manuscripts in the College Library of Gonville and Caius College, Cambridge, Cambridge, 1907, 196-199.


‘De accidentibus planetarum et diversitate motus ut sunt eclipses, retrogradationes, …dationes (?), occultationes et apparitiones. <E>a vero que ex accidentibus accidunt et Lune et stellis necesse est scire que sunt eclipses Solis et Lune et retrogradatio planetarum ― aut propinqui oppositioni Solis erunt tunc retrogradi.’