Paris: Gautier-Villars, 1889. First Edition. hardcover. 2 volumes. 8 folding diagrams, numerous text diagrams. Small 4to, 1/2 brown morocco. decoratively gilt spines, blind stamped pattern on covers. Paris: Gautier-Villars, 1891- 1889, 1891. Near Fine. near fine.
Comprises vols. IV & V of the collection of memoirs. Includes an extensive bibliography.