MATHEMATICAL INSTRUMENTS, ENGLISH, EIGHTEENTH-CENTURY, 6 VOLUMES

i. Martin, Benjamin (1705-1782). The description and use of a case of mathematical instruments. London: P & L Dolland, [1760?], 8vo, folding engraved plate, disbound, (bought from Palinurus, Philadelphia, 1989), [T&W M42; ESTC T10166] ii. [Anonymous]. A description of the pocket case of mathematical instruments... To which is added, a description and uses of the pocket quadrant, commonly called Gunter's quadrant. London: Henry Pyefinch for the author, 1769, 8vo, 3 folding engraved plates, contemporary calf, (bought from B. & L. Rootenberg, Sherman Oaks, CA, 1989), [T&W I21; ESTC T201448 (British Library and National Library of Wales only)], rebackediii. Robertson, John (1712-1776). A treatise of such mathematical instruments, as are usually put into a portable case… The third edition, with many additions. London: J. Nourse, 1775, 8vo, 12 folding engraved plates, contemporary calf, new endpapers, (bought from Harriet Wynter, London, 1981), [T&W R101; ESTC T92245; Harris 753], rebacked and repairediv. Barrow, John, Sir (1764-1848). A description of pocket and magazine cases of mathematical drawing instruments; in which is explained the use of each instrument, and Particularly of the Sector and Plain Scale... London: J. and W. Watkins, [1792?], 8vo, 4 folding engraved plates, (inkstamps of von Zach and Landesbibliothek Altenburg; bought from Pickering & Chatto, 1993, Catalogue 703, item 3), [T&W B107; ESTC T109900 (5 copies)]v. Adams, George (1750-1795). Geometrical and graphical essays. London: J. Dillon, 1797, 2 volumes, 8vo, engraved frontispiece, 34 folding engraved plates, contemporary calf, bookplate of Lady Frances Compton (sale in these rooms, 5-6 May 1988, lot 125, Erwin Tomash), [T&W A11; ESTC T142755]

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."

Second edition of Adams’ Geometrical and graphical essays, corrected and enlarged by William Jones. At the end is a priced list of instruments offered for sale by Jones, keyed to those shown in the plates. The frontispiece depicts Ramsden's "Great Theodolite"; it replaces Adams' 1791 frontispiece, which depicted a different theodolite, on a more complex mounting by Adams.