ca 184 pp, 12mo (132 x 71mm). In French. Written in a neat cursive in dark brown ink. Illustrated throughout with numerous finely drawn diagrams. The book is divided in to six books, with a list of definitions at the start of each book followed by a series of propositions. (Several openings with large brown ink stains with some show-through on versos or affecting nearby leaves.) Bound in 17th-century French calf gilt (a little wear to head of spine and joints, rubbed).  Provenance: Earls of Macclesfield (bookplate, shelfmark and small embossed stamps).