PENTHER, Johann Friedrich - Gnomonica fundamentalis et mechanica - 1734

PENTHER, Johann Friedrich Gnomonica fundamentalis et mechanica Augsburg, Jeremias Wolffs, 1734. 1 vol. petit in-folio. 34 x 22,5 cm. Demi-veau bordeaux XIXe. Title-frontispiece drawn by the author and engraved by Joh. August. Cornivus and 15 plates hors-texte. Second edition of the "Gnomonica" by the German professor of mathematics and economics Penther (1693-1749), first published in 1733. The work deals with the different types of sundials, their construction, how to install and regulate them, and explains important geometric terms. The plates illustrate these explanations and include sketches for geometric calculations and a small map of Germany on Plate II. With a manuscript page reproducing in French and German verses that appear on a dial and a camera obscura. Small loss of paper at the upper margin of the first leaves. References Houzeau/Lancaster I, V, 11614. Zinner 463. Engelmann, Bibl. mech.-tech. 279. Kayser IV, 316. VD 18, 12519219. Cf. La Lande 448 (1752 ed.); Poggendorff II, 400 ("1734", 1760). Cf. Ornamentstichslg. Berlin 1755 ("1734").

Estimación:€400

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