In 1551 he issued his copper engraved gores for a celestial globe, dedicating the same to Prince George of Austria, natural son of the Emperor Maximilian, who was Bishop of Brixen, Archbishop of Valencia, and Bishop of Liège in the year 1544. A set of these gores was likewise acquired by the Royal Library of Brussels at the same time it acquired the terrestrial globe gores referred to above.[276] The dedication reads “Ampliss: Preculi Principiqȝ Illᵐᵒ Georgio ab Austria Dei dispositione Episcopo Leodiensi, Duci Bullonensi, Marchioni Francimotensi, Comiti Lossensi &c̃ mecaenati optime merito dd. Gerardus Mercator Rupelmundanus.” “To the Magnificent Protector and Prince, the very distinguished George of Austria, by the Grace of God, Bishop of Liège, Duke of Bouillon, Marquis of Francimontensi, Count of Lossensi, the very splendid patron of arts and science, dedicated by Gerard Mercator of Rupelmunde.” Near the above inscription we find the date and place of issue given as follows, “Lovanii anno Domini 1551 mense Aprili,” and a reference to his privilege “Inhibitum est ne quis hoc opus imitetur, aut alibi factum vendat, intra fines Imperii, vel provinciarum inferiorum Caes: Mt̄is an: te decennium, sub poenis & mulctis in diplomatibus cotentis. Oberburger & Soete subscrib.” “All persons are forbidden to reproduce this work or to sell it when made elsewhere within the Empire or the Low Countries of His Imperial Majesty until after ten years, under the penalties and fines prescribed in the patent. Signed by Oberburger and Soete.” It clearly was the intention that this should serve as the companion of his terrestrial globe of 1541, described above, since the gores are of the same size, each of the twelve being truncated in the same manner, and the circular section being prepared for the polar areas. Mercator’s merits as an astronomer by no means equaled his merits as a geographer. However, his celestial globe, by reason of the exactness of the composition, by reason of its simplicity, and by reason of the artistic skill exhibited in the workmanship, is a most worthy work of that great scientist. On this globe are represented the forty-eight constellations of Ptolemy, to which have been added three which he calls Antinous, Lepus and Cincinnus, the first formed of six stars and located on the equator below the constellation Aquila, the second in the southern hemisphere under the feet of Orion, and the third in the northern hemisphere near the tail of Ursa Major.[277] His constellations, as well as the principal stars in the same, have, in the majority of instances, Greek, Latin, and Arabic names. It does not appear that Mercator felt himself bound to a strictly scientific representation and interpretation of the celestial bodies, for he pays more or less homage to astrology, inscribing on the horizon circle of his globe the horoscope as used by astrologists in calculating nativities, perhaps recognizing, from a business standpoint, the