Leiden, E. J. Brill, 1901-1986. Large 4to (ca. 33.0 x 27.0 cm); over 1200 plates (188 in colour) including lithographed and chromolithographed plates, some etchings and photographic plates. Partly original printed wrappers, partly blind wrappers.

Very rare complete set of the results of the largest oceanographical expedition to the Indonesian waters, which are renowned for their unsurpassed biodiversity. Nearly fifty percent of the species described are new to science (for example, 131 new species of fishes). The Siboga results include even more species than those of the famous Challenger Expedition. Arguably, this is te most important Dutch contribution to oceanography and hydrobiology ever. Published over a very long period and, therefore, rarely found complete. Three plates (in part 72) in photostat. Some wrappers slightly damaged, a few with some staining to the interior, otherwise a very good set. Not in Nissen, which is downright ridiculous.