“None of the sciences that descended from antiquity,” writes Arthur M. Hind,[3] “possessed a firmer hold on the popular imagination of the Middle Ages than that of Astrology. That science took as its foundation the ancient conception of the universe, with the earth as the centre round which all the heavenly bodies revolved in the space of a day and a night. Encircling the earth were the successive spheres of water, air, fire, the seven planets (Moon, Mercury, Venus, Sun, Mars, Jupiter, Saturn), the firmament with the constellations (the _cœlum crystallinum_), and the Primum Mobile. To each of the planets were ascribed attributes according to the traditional character of the deity whose name it bore, and these attributes were regarded as transmissible under certain conditions to mankind. The influence of the planets depended on their position in the heavens in respect of the various constellations, with which each had different relations. Each planet had what was called its ‘house’ in one of the constellations, and according to its position relative to these was said to be in the ‘ascendant’ or ‘descendant’. In regard to individual human beings the date of birth was the decisive point, and the degree of influence transmitted from the planets depended on the respective degree of ‘ascendance’ or ‘descendance’ at the particular epoch.” [3] Catalogue of Early Italian Engravings ... in the British Museum. By Arthur Mayger Hind. London. 1910. pp. 49-50. The planets and their influences afforded subject matter for many artists of the fifteenth and sixteenth centuries, and the finest and most important series is that engraved in the Fine Manner by an artist of the Finiguerra School, who has, as usual, drawn directly upon the Picture-Chronicle for his ornamental accessories. We can reproduce two only from the set of seven--_Jupiter_ and _Mercury_. The inscription beneath _Jupiter_ reads, in part, as follows: “Jupiter is a male planet in the sixth sphere, warm and moist, temperate by nature, and of gentle disposition; he is sanguine, cheerful, liberal, eloquent; he loves fine clothes, is handsome and ruddy of aspect, and looks toward the Earth. Tin is his metal; his days are Sunday and Thursday, with the first, eighth, fifteenth and twenty-fourth hours; his night is that of Wednesday; he is friendly to the Moon, hostile to Mars....” In the landscape we again meet with several of the stock Finiguerra motives, the muzzled hounds, the dog chasing the hare, etc. Of especial interest is the group at the right--“wing-bearing Dante who flew through Hell, through the starry Heavens and o’er the intermediate hill of Purgatory beneath the beauteous brows of Beatrice; and Petrarch too, who tells again the tale of Cupid’s triumph; and the man who, in ten days, portrays a hundred stories (Boccaccio).”