GALILEI, Galileo. Dialogo... sopre i due massimi sistemi del mondo Tolemaico, e Copernicano. Florence: Gian Battista Landini, 1632.
GALILEI, Galileo. Dialogo... sopre i due massimi sistemi del mondo Tolemaico, e Copernicano. Florence: Gian Battista Landini, 1632.

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GALILEI, Galileo. Dialogo... sopre i due massimi sistemi del mondo Tolemaico, e Copernicano. Florence: Gian Battista Landini, 1632.

4o (220 x 155 mm). Etched frontispiece by Stefano della Bella, italic type, shoulder notes in roman type, printer's woodcut device on title-page, 31 woodcut illustrations and diagrams in text, woodcut initials, type ornament head- and tail-pieces and factotum initials, errata leaf Ff6, with the printed correction slip pasted in margin of F6v (p. 92) as usual and manuscript addition of letter H to diagram on M8v (p.192). (Small ink stain to fore-edge corroding some blank margins, tiny hole to text of +2 and two tiny holes to 2I3 affecting few letters, Q5 with small paper flaw to text, some occasional light browning, lacking blank 2K4.) 18th-century Italian vellum over pasteboard, spine ink lettered. Provenance: Fulvio Ligari (ownership inscription dated 1733); Antonio Filippani Ronconi (small ink stamp on title); E.N. da C. Andrade, FRS (bookplate; sold Sotheby's London, 12 July 1965, lot 199).

FIRST EDITION OF GALILEO'S CELEBRATED DEFENSE OF THE COPERNICAN VIEW OF THE SOLAR SYSTEM. Galileo's formal use of the dialogue allowed him to explore his Copernican theories fully within the rubric of the "equal and impartial discussion" required by Pope Urban VIII. The work "was designed both as an appeal to the great public and as an escape from silence... it is a masterly polemic for the new science. It displays all the great discoveries in the heavens which the ancients had ignored; it inveighs against the sterility, willfulness, and ignorance of those who defend their systems; it revels in the simplicity of Copernican thought and, above all, it teaches that the movement of the earth makes sense in philosophy, that is, in physics... The Dialogo, more than any other work, made the heliocentric system a commonplace" (PMM). Pope Urban VIII was not so swayed, and immediately convened a special commission to examine the book and make recommendations. In casting the Pope as the simple-minded Aristotelian Simplicius, Galileo brought upon himself arrest, trial by the Inquisition and life imprisonment. The sentence was commuted to permanent house arrest, while the printing of any of his works was forbidden. The Dialogo remained on the Index until 1832. Carli and Favaro, p.28; Cinti 89; Dibner Heralds of Science 8; Grolier/Horblit 18c; Norman 858; PMM 128; Riccardi I:511; Wellcome 2647a.

See also lot 239.

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