拍品 520
  • 520

PHILOSOPHICAL TRANSACTIONS, 2 VOLUMES

估價
400 - 500 GBP
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招標截止

描述

  • Two volumes, comprising:
i. Rowning, John (1701?-1771). Directions for making a machine for finding the roots of equations universally with the manner of using it (extracted from: Phil. Trans. vol. LX, (1770) pp.240-256. London: Royal Society of London, 1770, 4to, folding engraved plate, recent brown morocco, modern folding cloth box, (bought from Historical Technology, Marblehead, MA, 1986), [T&W R120]ii. Gersten, Christian Ludwig (1701-1762). The description and use of an arithmetical machine (extracted from: Phil. Trans. vol. XXXIX (1735) pp.77-118. London: Royal Society of London, 1735, 4to, engraved plate, disbound, (bought from Biblion, 1983), [T&W G40; Randell 1979 p.132], plate loose

Condition

Condition is described in the main body of the cataloguing, 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."

拍品資料及來源

“After a brief survey of the work of Morland, Leibniz, Poleni, Leupold, and Pascal, Gersten states that his work was motivated by the Leibniz machine, but was developed independently of both the mechanisms of Leibniz and Pascal. Then gives an extremely detailed description of his machine, its inner mechanism, and method of use” (Randell).