Fourth, revised edition, 3 volumes, complete, published 1925, 1926, 1927- ” Quatrième édition, entièrement refondue”. Quarter leather on mottled paper-covered boards. Volume titles and pagination: Vol 1 Notions Générales, -xiii, then to 496, with coloured, folding map (Carte de Climats) at rear; Vol 2 prelims then Le Relief du Sol, 501-1057; Vol 3 Biogéographie, prelims then 1061-1517. Illustrated with monochrome plates from photographs, as well as line drawings in run of text. Condition: Boards rubbed, especially along edges, and a little bumped. Leather somewhat worn. Internally clean and sound.