London, The Linnean Society of London, 1939-1955. 20 papers in three. Large 4to (31.4 x 25.0 cm). 357 pp.; numerous plates and text illustrations. Original uniform printed wrappers.

The complete reports on the expedition (by the editor), the geology (by H. P. Moon), the algae, and the zoology, including the Amphibia (by H. W. Parker), and the freshwater molluscs (by Fritz Haas; with 28 fine drawings, and including several new genera and species; and by Bengt Hubendick on gastropod anatomy with 94 figures). Uncut. Very light shelf wear; tiny number written in the top margin of the first text page, above the drop-head titles; otherwise, a very good, clean set. Especially the much later published third volume is quite uncommon if not just rare.