Io. Antonii Magini Patavini, Mathematicarum in almo Bononiensi Gymnasio Professoris, De Astrologica ratione, ac usu dierum Criticorum, seu Decretoriorum, ac praeterea de cognoscendis et medendis morbis ex corporum caelestium cognitione, opus ad ephemeridum supplementum nunc primo editum & libris duobus distinctum. Quorum primus complectitur commentarium in Claudii Galeni librum tertium De diebus decretoriis: alter agit de legitimo Astrologiae in medicina usu. His additur De annui temporis mensura in Directionibus: & de Directionibus ipsis ex Valentini Naibodae scriptis
A 1608 Frankfurt edition by the Paduan-born mathematician Giovanni Antonio Magini, professor at Bologna, offering learned commentary on Galen's critical days and the use of astrology in medicine, written for physicians and astrologers. Its pictures are astrological nativity-style charts, each a diamond-within-square diagram of planetary glyphs, zodiac signs and numerals set around a central panel of dates and places, offering a designer strong geometric framing and dense symbolic typography.
