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15 - 16 June 1998
CAVALIERI, Bonaventura (ca. 1598-1647). Lo specchio ustorio overo trattato delle settioni coniche. Bologna: Clemente Ferroni, 1632.
4o (215 x 140 mm). With the final leaf "Avvertimento al Libraro." 10 woodcut plates at end. Contemporary limp vellum. Provenance: Astonedi Monte Vecchio, 1663 (inscription on title-page).
FIRST EDITION of Cavalieri's first work. In this work on conics he provides some interesting historical data on the origin of the theory of the conics among the Greeks, which according to Cavalieri, can be found in the gnomonic requirements. Lo specchio ustorio ("The Burning Glass") also contains Cavalieri's theory of conics with applications to optics and acoustics, including the idea for the reflecting telescope--an invention he is sometimes credited with first discovering. Riccardi I, 323; Norman 418
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