3 Volumes (246 x 184mm): Géometrie 193 pages, plus 60 blank leaves; Algèbra 166 pages, plus 46 blank leaves; Planches 182 figures on 76 plates, plus 48 blank leaves. In French. Written in a neat cursive hand in brown ink. The plate volume with ink diagrams and geometric figures (5 with tan wash), on papier bleu. Bound in contemporary French mottled calf gilt (spines with minor rubbing and light wear at ends). Provenance: Arthémond de Régny (1777-1841), French economist (bookplates).

 

Presumably used by the noted French economist Arthémond de Régny while attending university at the end of the 18th century. The Géometrie volumes begins with Euclid with numerical references to drawings in the plate volume, followed by a number of problems, solutions and corollaries, and the remainder deals with fifty theorems plane and solid geometry. The Algèbra volume begins with basic math functions, followed by a discussion of algebraic functions.