NUAGES 2 volumes. International Cloud Atlas. World Meteorological Organization, Geneva, 1956. Volume 1 (text volume): in-4 (27 x 21 cm). 166 pp. Texts by E. Delcambre, A. Viaut and W. Bleeker. Bound in imitation leather with gilt title. Volume 2 (illustration volume): in 4 oblong (21 x 27 cm). An introductory page, followed by 224 photographic plates of different cloud types. 16 pp of captions and appendices at the end of the book. Bound in imitation leather with gilt title.