Wolff, Christian. The initial reason for all mathematical sciences. The other edition, every now and then improved and multiplied. 16 x 10.5 cm. Parchment band d. C. (lightly thrown and flaky, back tanned) with hs. Title. Hall, Renger, 1716. Jordan 4113. See Cantor III, 271. Poggendorff II, 1355. – Reich illustrated edition is one of the most important mathematical compendiums of his time and experienced in the first half of the 18th century. ==References====External links== The author, the universal scholar Christian von Wolff (1679-1754), is one of the most important representatives of natural law. In this volume he deals with a broad spectrum of mathematical and technical disciplines, including computational art, trigonometry and architecture as well as artillery, fortification, mechanics, hydrostatics, aerometry and hydraulics, the contents of which are clearly explained by numerous copper plates. Title stamped. Paper age-related tanned and slightly sticky.