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GUNTER, Edmund

The workes of Edmund Gunter, containing the description of the sector, cross-staff, and other instruments; with a canon of artificial sines & tangent, &c. Much enlarged by the author. Together with a new treatise of fortification. Whereunto is now added the further use of the quadrant fitted for daily practice. By Sam. Foster late professor of Astronomie in Gresham-Colledge London

      With engraved frontispiece of Gunter's scale, engraved allegorical title, and additional title for Canon triangulorum, or tables of artificiall sines and tangents dated 1652; numerous woodcut text illustrations, diagrams and charts many full-page, woodcut initials, head- and tailpieces. Complete with the 4 slips tipped in, all uncut in their original sheets, including the often-lacking volvelle, The Nocturnall. Contemporary speckled calf, re-backed and re-cornered; signature Pp browned and foxed, otherwise an excellent copy from the library of Frank L. Streeter, with his bookplate. First edition of the collected works of Gunter. Although the title states that this is a third edition, neither STC, Wing, nor NUC record anything earlier; it is most likely that earlier editions of the Canon and the Sector were taken into account. Included is Gunter's first published work, the Canon triangulorum (first printed 1620), which was the first table of trigonometric functions to be published, and which includes at the end The first thousand logarithmes now againe set forth by the author Henrie Briggs. Gunter is widely considered to be one of the inventors of the logarithm, along with Napier (1550-1617) and Gunter's close friend Henry Briggs (1561-1630). Gunter's important descriptions of his ground-breaking instruments as well as his considerable work on surveying figure in the present work.& & Gunter (1581-1626), mathematician and professor of astronomy, was one of the great instrument-makers of the seventeenth century. He made numerous scientific contributions to mathematics, and invented a number of important nautical and surveying instruments including the surveying-chain, a quadrant, a scale, and a simple form of the slide-rule. He was also the first to use the terms cosine, cotangent and cosecant for the sine, tangent and the secant for the complement of an arc. Foster (d. 1652) succeeded Gunter as professor of astronomy at Gresham College. &

      [Bookseller: B & L Rootenberg Rare Books & Manuscript]
Last Found On: 2012-05-05          Check current availability from:     Biblio


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