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SCHWENTER, DANIEL. Geometriae practicae novae tractatus. Woodcut diagrams and illustrations throughout. [8], 284; [14], 191, [5]; [8], 93, [3] pages, including engraved title in each part (the first cropped in outer margin). 3 parts in one volume. 4to, contemporary vellum, worn, lacking ties; occasional light browning, some headlines cropped. Nuremberg: Simon Halbmayer, (1618)
first edition of the first 3 parts; a fourth was published in 1627. "Important work, which went through several editions and contains the author's discovery, independently of Cataldi, of continued fractions"--Sotheran 14765. Poggendorff II, 878.
