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 roots both square and cube, are performed with incredible celerity and exactness (without any charge to the memory) by addition and subtraction only

• Record Nr.: UNISA996386164703316
• Autore: Leybourn William <1626-1716.>
• Pubbl/distr/stampa: London, : Printed by T.B. for H. Sawbridge ..., 1685
• Descrizione fisica: [7], 86, [2] p
• Soggetti: Quadrant; Sundials; Mathematical instruments
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Reproduction of original in Huntington Library.; Attributed to William Leybourn. cf. NUC pre-1956.; On t.p.: Published by W.L.; Folded table inserted.; Advertisement: p. [1] at end.; Errata: p. [2] at end.
• Sommario/riassunto: eebo-0113