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2014-02-05 11:28:07
THEODORICUS [Dietrich], Sebastian; GARCAEUS [Gartze], Johannes
Novae qvestiones sphaerae, hoc est, de circvlis coelestibvs, et primo mobili, in gratiam studiosae iuuentutis scriptae. (bound with) Primus tractatvs brevis et vtilitis de tempore, con scriptus in gratium studiosorum.
Johannes Crato 1564; 1563 I: With woodcut armillary sphere on title, text woodcuts, and 3 folding tables, no volvelles as is most often the case. II: With woodcut armillary sphere on title, text woodcuts, and 11 folding tables. Bound in contemporary limp; vellum made from an early fifteenth-century manuscript sewn ?Greek style? through the spine; small paper flaw (pp. 97-98), minor tears and repairs to tables, contemporary annotations. I. First edition. This introduction to astronomy by the Wittenberg professor of mathematics, written in the form of a series of questions and answers, became the standard astronomy text for German universities. Theodoricus (1501-1578) was quite familiar with the writings of Copernicus, yet he held out for the immobility of the earth. ?He cites Copernicus as well as Ptolemy for the relative magnitudes of earth and sun. He gives Copernicus? figures for the maximum and minimum declination of the sun, and his estimate that this movement of the ecliptic approaching and receding from the equator is completed in 1717 years . . . Theodoricus contended that elementary spherics such as his own were necessary for all students of the liberal arts and not merely for those who were to go on in astronomy? (Thorndike). II: First edition of Garcaeus? first treatise on time measurement. The author here correlates the time measurements of the ancients (Egyptians, Greeks, Romans, etc.) with the contemporary Julian calendar utilizing various astronomical measurements, including lunar and solar cycles, rise and fall of fixed stars, and the movements of the planet … [Click Below for Full Description]
Bookseller: B & L Rootenberg
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