PASCAL, OEUVRES, THE HAGUE, 1779, 5 VOLUMES, CONTEMPORARY CALF

FIRST COLLECTED EDITION, 5 volumes, 8vo (197 x 115mm.), titles printed in red and black, engraved portrait, 14 folding engraved plates, errata leaf at end of vol.1, contemporary calf, spines gilt with red morocco labels, slight worming to covers of vol.4 and 5, spine ends of vol.5 chipped

Prioleau, pencil signature on some titles; bought from B. & L. Rootenberg Rare Books, Sherman Oaks, CA, 1986

Tomash & Williams P22; Maire, Pascal, iv, pp.133-134 no. 67; Origins of Cyberspace 13; STCN 194588092

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."

Pascal's "Machine arithmétique" is described and illustrated in volume 4. Invented in order to help his father with his tax assessing duties, his mechanism enabled far greater mathematical calculations.