拍品 520
  • 520

PHILOSOPHICAL TRANSACTIONS, 2 VOLUMES

估價
400 - 500 GBP
已售出
625 GBP
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
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