By Florian Cajori
The slide rule, with its many diversifications, has been very important to arithmetic and engineering considering its invention within the seventeenth century. curiosity during this box has grown dramatically and creditors can nonetheless locate a lot fabric at cheap costs. regrettably there was little details on hand aside from brands manuals and catalogs, making this reprint of Cajori's vintage fairly worthy. additionally incorporated with this reprint of the 1910 variation is Cajori's large article at the heritage of Gunter's Scale and the Slide Rule in the course of the seventeenth Century, released through the collage of California in 1920, which units forth his next findings. there's additionally a useful explanatory advent by way of Dr. Robert okay. Otnes, editor of the magazine of the Oughtred Society. 178 pages. Illustrated. 61/8" x 91/4". challenging hide.
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3, 4, and E. Sedlaczek, Anleitung sum Gebrauche einiger logar. ] 44. Bouché, Hélice Calcul. , Paris, 1905, p. 109; Comptes rendus, 2e sem. 1857, p. ] 45. Regolo di Sedlaczek per i calcoli d’interpolazione. [Cited by Favaro, op. , p. 509, from E. Sedlaczek, Ueber Visir- und Recheninstrumente, Wien, 1856, pp. 3, 4, and E. Sedlaczek, Anleitung sum Gebrauche einiger Logarith. ] 46. Dubois, Arithmograph. [Cited by Favaro, loc. , p. 511, from Comptes Rendus hebdomadaires des séances de l’acad. d. sciences, T.
2 Bulletin de la société d’encouragement pour l’industrie nationale, Vol. 52, 1853, p. 588. 3 Idem, p. 588. 4 Bulletin de la société d’encouragement pour l’industrie nationale, Vol. 52, 1853, p. 588. 5 Art. “Slide Rule,” Penny Cyclopaedia. 6 Idem, pp. 588,589 7 Idem, p. 589. 8 Idem, p. 589; Favaro, op. , p. 508. HISTORY OF THE LOGARITHMIC SLIDE RULE 32 That French workmanship attained a high degree of skill is apparent from English comment. About 1841 De Morgan1 received from Paris a circular logarithmic scale in brass, 4½ in.
F. Heather, Drawing and Measuring Instruments, London, 1871, p. 149. ] 62. Hoare’s Slide Rule. [The Slide Rule and How to Use it, by Charles Hoare, G. , with a slide rule in tuck of cover. Sixth edition, London, 1890. Date of preface, 1867. ] 63. Ipsologista di Paola de Saint-Robert. [Torino Acc. Sci. Memorie (2), Vol. 25, 1871, p. 53; Encyklopädie d. Math. , Bd. I, 1898—1904, p. 1064. See also Q. , Torino, 1886, p. ] 64. Regolo Soldati per i calcoli di celerimensura. [Cited by Favaro, loc. , p.