Paris, Librairie Plon, Plon-Nourrit , 1907, in-8°, (8)nn pp + 560 pp + 4 plates h.t. (entomology) + 1 large folding map, with several full page photo ills. and smaller ills. in the text. Bound in green publisher's cloth with gilt lettering. Top edge gilt. Very fine copy of the original first edition. Text in French. Livre en français. Édition originale, bel exemplaire.