OUGHTRED, THE KEY OF THE MATHEMATICKS, LONDON, 1647, CONTEMPORARY CALF (REBACKED)

FIRST EDITION IN ENGLISH, 8vo (144 x 90mm.), 10 engraved plates (one, with volvelle, folding), engraved illustrations in text, contemporary calf, lacks portrait, D4 (p.39) and D8 repaired at foot (first slightly cropped touching letters), plate with volvelle worn at edge, some staining (mainly plates), slight soiling, binding slightly worn, rebacked, new endleaves

Barker & Son, Clerkenwell, London, pocket compass and sun dial manufacturers, stamp on endleaf; Phillips, auction 20 September 1984, lot 174; bought from Michael Phelps, London, 1985

Tomash & Williams O49; ESTC R32222; Wing O582

the condition of this lot is as described in the catalogue description
"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."

Published originally in 1631 as Arithmeticae in numeris et speciebus institutio (see lot 477), and latterly under the title Clavis mathematicae (lot 486), this is the first English edition. There are a few contemporary notes in this copy at the end of the text, before the plates.