To the makers of armillary spheres in the first half of the seventeenth century there may be added the name of Adam Heroldt, a native of Germany. We know little, however, of the extent of his activities. One example of his work is known, which bears the simple inscription engraved near the south polar circle “Adam Heroldt fecit Romae anno dn̄i MDCIL.” “Made by Adam Heroldt in the year 1649.” This sphere once belonged to the astronomer De Gasparis of Naples, but passed some years since into the collection of the Museo Astronomico of Rome. It is constructed entirely of brass, the diameter of the largest circle being about 14 cm. Its several circles, including the polar, the equatorial, the zodiacal, and the horizon, are graduated, the last-named having engraved on its surface the names of the months and of the winds, and resting on two semicircles, which in turn are supported by an artistically designed foot. The entire height of the sphere is about 20 cm. At the north pole is an hour circle bearing the inscription “Index Hor: Italic.” Within and at the common center of the several circles is a small ball representing the terrestrial sphere, which has a diameter of but 1 cm., and within the circle of the ecliptic and coördinated with it is a ring carrying the sun, while within this is one for the moon. The piece may be referred to as a fine example of the armillary sphere of the period. Manfredo Settàla (1600-1680)[59], a nobleman of Italy, was in his day a distinguished promoter of science and art, and an intelligent collector of rare objects, which he brought together in a museum of his own founding. This he described in a work bearing title ‘Museum Septalianum,’ which was published in Italian in the year 1666 by Scarabelli. This museum later passed into the possession of the Ambrosiana of Milan, where it has been considered one of the choicest additions. Settàla had included globes in his collection, among which there has previously been mentioned that made by the Cremonese Gianelli, in the year 1549. But not only was he a collector; he likewise became interested in the actual work of globe construction. Among the objects coming to the Ambrosiana from his museum is an armillary sphere bearing the inscription, “Manfredus Settalius fecit MDCXLVI.”[60] It is described as a sphere having a base of brass, its several circles including those representing the zodiac, the equator, the meridians, and the horizon, all being movable on a common axis, on which axis at the common center of the circles is a small ball 4 cm. in diameter, representing the earth. To this sphere rather extravagant praise is given in the descriptive catalogue referred to above.