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Estimate: $ 2,500 - $ 3,500
BEDE, THE VENERABLE, Saint. De natura rerum et temporum ratione libri duo. [16], 74 leaves. Folio, 304x196 mm, contemporary 1/4 blind-tooled leather over wooden boards with brass catches and clasps; minor worming not impairing legibility, light soiling and stains on title, old stamp of the Faesch Museum, Basel, on verso. Basel: Henricus Petri, 1529
first edition of Bede's principal scientific and computistical works, a treatise on cosmology and the natural world based on the writings of Isidore of Seville and Pliny the Elder, and an influential work on chronology and calendar calculation substantially enlarged from his own De temporibus. "Bede's greatest practical effect was on the Western calendar. His decisions (beginning the year, calculation of Easter, names of days and months, calculations of eras, and so forth) in most instances finally determined usage that was only refined, not changed, by Gregorian reform" (DSB). Adams B449; DSB I, 565; Sarton I, 510-11; Shaaber B378.
