1902-1937 120, 187, 108, 20, 24, 40, 12, 62, 106, 138 p., 170, 178, 27, 40 figures, 10, 22, 4, 6, 11, 3, 12, 7, 8 plates, 1 folded map, roy. 4to, contemporary and later black half cloth, spine with paper label on parts I-III, no labels on the other parts, marbled boards. Small paper labels with numbers laid on spine. Small round blind-stamp on lower margin title-page.From 1899 to 1900 the HMS "Siboga" explored the waters of the Dutch East Indies (now Indonesia), were an enormous collection of both shallow water and deep water organisms was gathered.Rare complete set for the Gorgonacea (except for Alcyonaria and Pennatulacea), including the two large supplements which were published much later. Heavy set (9 kg)!