Circular astrological chart flanked by two tables, set within a decorative classical design in the Baroque taste, and labeled in Latin. The chart apparently was for predicting health (specifically, periods of greater or lesser likelihood of illness) in relation to planetary alignments.
Two circular inscriptions on either side of the main diagram briefly explain how the Sun, Moon, Saturn, Jupiter, Mars and Venus in "Domo VIII," the Eighth House, affect health. One of these summarizes the planetary conditions affecting health during the "annis climacteris" (climacteric year), an astrological concept also found in the writings of ancient Greek philosophers. In this belief system, every seventh year of a person's life was called a climacteric year, and was supposedly a time of increased physical vulnerability. The planet Saturn was said to exert a key influence over these events.
The tables on either side of the chart have columns of numbers corresponding to Motus Menstruus [Monthly Motion], the lunar cycle, and Motus Diurnus [Diurnal Motion], the daily rotation of the earth every 24 hours. The basic divisions of the central diagram include an outer dial labeled in Roman numerals divided into 28 sections, and an inner dial divided into 12 numbered sections corresponding to the signs of the zodiac. In the center, radiating lines labeled "Intercedens" (intervening) and "Indicitivus" (indicative) and "Dies Perfecté Criticus" (literally "perfect daylight"). The engraving has been mostly left uncolored, with a few details highlighted with yellow-orange watercolor, as issued. This plate evidently came from a multi-volume treatise.
Inscription upper left circle: Crises bonae [planetary symbols] in Horoscopo vel Domo VIII initio morbi: vel ab ÿsdem in progressu fortunato. [Rough translation: Good period. The Moon…the Sun, Jupiter and Venus in the horoscope of the 8th House initiates illness: even as the very same fortune advances.]
Inscription upper right circle: Crises malae [planetary symbols] vel [Mars] ad initiummor si tempore Eclipsis in Annis climactericis item [Saturn] et [Mars] aspectus tempore morbi in Horoscopo aut Domo VIII. [Rough Translation: Bad period. One observes a period of illness if the Moon…Saturn or Mars are near the beginning of the time of Eclipsis in the climacteric year, likewise if Saturn and Mars are in the horoscope of the 8th House.]
Inscription upper right margin: Tom. 1. pag. 57. [Book 1, page 57]
Condition: Generally very good with the usual overall light toning and wear. Vertical center fold, as issued.