Lot 469
  • 469

NORWOOD, TRIGONOMETRIE. OR THE DOCTRINE OF TRIANGLES, LONDON, 1631, MODERN CALF

Estimate
2,000 - 3,000 GBP
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Description

  • Trigonometrie. Or, the doctrine of triangles: divided into two bookes: the first shewing the mensuration of right lined triangles: the second of sphericall: with the grounds and demonstrations thereof. Both performed by that late and excellent invention of logarithmes... Whereunto is annexed (chiefly for the use of seamen,) a treatise of the application thereof in the three principall kindes of sailing. With certaine necessary tables used in navigation. London: William Jones, 1631
FIRST EDITION, 2 parts in one, 4to (180 x 133mm.), diagrams in text, with cancel and cancelland H3, modern calf, red edges

Provenance

Harrison D. Horblit (1912-1988), book label; bought from H.P. Kraus, New York, 1988, Catalogue 168, item 112, $6,400

Literature

Tomash & Williams N46; Crone Library 168; Henderson pp.59-60 no. 27.0; ESTC S113369; STC 18692; Taylor, Tudor & Stuart 149; Adams & Waters 2764

Condition

the condition of this lot is as described in the catalogue description, where appropriate
"In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD AS IS" IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE."

Catalogue Note

AN IMPORTANT NAVIGATIONAL MANUAL. "A clear explanation of plane and spherical trigonometry is followed by a systematic demonstration of how to solve the standard navigational problems for the plain and Mercator's charts respectively, using the example of the voyage from the Lizard to the Summers Islands (Bermuda). For great circle sailing, given the latitude and longitude of the places of departure and arrival, the points where the great circle crosses a succession of meridians at a selected small interval, and the angles at which it crosses them, can be work out trigonometrically, and plotted on Mercator's chart. The course can be chosen to follow the circle as nearly as is convenient along a succession of rhumbs" (Taylor).