1948. Horizons de France, Paris. 414 pp. 300 aerial phot. Orig. boards, covers with some brown spots, unobtrusive libr. stamp on title page, contents very good, 4to.
1942. New York, Harper’s Geoscience Series [revised and extended edition of : Interpretation of geological maps and aerial photographs]. 203 pp.92 fig./phot. with North American examples. Orig. cloth, some brown spots on first and last pages.