GALLUCCI, Giovanni Paolo (1538-c.1621). Speculum Uranicum in quo vera loca tum octavae sphaerae tum septem planetarum mira facilitate ad quod libet datum tempus ex prutenicarum ratione colliguntur. Venice: Damianus Zenarus, 1593.
2° (410 x 275mm). With the folding table 'Canon Sexagenarius' bound-in at the end, and without the leaves 'De harum paginarum usu' found in some copies. Title with engraved border by Giacomo Franco incorporating Zenarus's dragon device, 17 large circular woodcut diagrams, 16 with attached volvelles with a total of 39 moving parts, woodcut headpieces. (Without final blank, first and last few leaves repaired in the inside margin and some corners, title soiled, mostly marginal dampstaining, occasional browning, the table with a faint dampstain and a small old repair in one corner.) 20th-century half roan preserving early boards and pastedowns (extremities rubbed). Provenance: Nathaniel Torperley (1564-1632; inscription dated '1633' recording the gift; light marginalia in an early, perhaps related hand) -- Sion College (stamp, and de-accession stamp dated 1938).
FIRST EDITION, WITH ALL THE VOLVELLES. Named after Urania, muse of astronomy, this rare work helps chart, with numerous volvelles, the movements of the heavenly bodies by the methods of Regiomontanus. Published soon after the papal bull of 1586 forbidding astrology, Gallucci nonetheless asserts the importance of the rational, scientific investigation of the heavens. The mathematician Nathaniel Torperley (1564-1632), who spent several years at Sion College, was pensioned by Henry Percy, ninth Earl of Northumberland, who also supported John Dee, Robert Hughes, Thomas Harriot and Walter Warner. Houzeau and Lancaster 12742; La Lande 125; Riccardi I, 570; Weidler p. 410.