Ptolemaeus Arabus et Latinus

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Work C.3.7

De creticis diebus in continuis febribus et acutis

A commentary on v. 60 of the Centiloquium, dealing with the outcome of an illness from the aspects of the Moon to the Sun and other astrological configurations. The only known manuscript was copied in the first half of the fourteenth century, probably in Italy or Spain, and belonged to an astrologer active in Spain, perhaps Alfonsus Dyonisii of Lisbon (d. 1352).


‘(Paris, BnF, lat. 7316A) De creticis diebus in continuis febribus et acutis iuxta Ptolomeum secundum quod Lune status invenerit certificemus. Ad quod oportet scire Lunam in zodiaco 8 proportiones habere. Prima et principalis est existentia gradus in quo cum Sole est, et dicitur coniunctio… Iuxta ergo Ptolomeum vera cretica dies est prima, 7, 14, 20, 21 — quod si eundo obviat malignis vel fixis que dicuntur puthei sentiet eger passionis detrimentum.’


F. J. Carmody, Arabic Astronomical and Astrological Sciences in Latin Translation. A Critical Bibliography, Berkeley-Los Angeles, 1956, 21 (no. 39); G. Dell’Anna, Dies critici. La teoria della ciclicità delle patologie nel XIV secolo, Galatina, 1999, 2 vols, I, 87-90 and 141 n. 11-19.

Modern ed.

Dell’Anna, Dies critici, II, 5-6.


Paris, BnF, lat. 7316A, s. XIV, f. 50rb-51raImages