01686nam 2200409Ia 450 99639633190331620221108083013.0(CKB)4330000000336141(EEBO)2240944397(OCoLC)12408138(EXLCZ)99433000000033614119850821d1667 uy |engurbn||||a|bb|The art of numbring by speaking-rods, vulgarly termed Nepeirs bones[electronic resource] by which the most difficult parts of arithmetick, as multiplication, division, and extracting of roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and subtraction only /published by W.LLondon Printed for G. Sawbridge and are to be sold at his house ...1667[10], 86 pAttributed to William Leybourn. Cf. BM.An enlarged edition was published in 1721 under title: The description and use of ... Gunter's quadrant ... to which is added the use of Nepiar's bones.Folded table inserted.Reproduction of original in British Library.eebo-0018QuadrantSundialsEarly works to 1800Mathematical instrumentsQuadrant.SundialsMathematical instruments.Leybourn William1626-1716.1001442EAAEAAm/cWaOLNBOOK996396331903316The art of numbring by speaking-rods, vulgarly termed Nepeirs bones2395522UNISA