The third edition of this French mathematics textbook published in 1858. Half tan leather/marbled boards, gilt. Edgeworn and scuffed, spine sunned plus small split and loss top end, ink mark lower end, but title label intact. Inner hinges split but binding otherwise secure. Text block edges red, top edge browned. Scattered foxing, owner name/date 2nd front endpaper, a few small marginal marks/underlines but overall internally clean and well preserved except foldout plates at rear (mis-folded, fore-edges consequently browned/ragged but diagrams unharmed). xlviii, 340 pp plus 15 foldout plates with line diagrams to rear. French text. Published 1858.