1927 [4], 164 p., 77 figs, 3 pls, small folio, hcloth (somewhat worn, lower end spine loose, original front cover bound in). Library stamps (Zoologisch Museum Amsterdam). Bijdragen tot de Dierkunde. Scarce.Includes: Benthem Jutting, Marine Molluscs / Pilsbry, Cirripedia / Augener, Polychaeten / Engel, Westindische Opisthobranchiate Mollusken / Osburn, Bryozoa / Arndt, Kalk- und Kieselschwämme / Varia.
1953 139 p., several figures, portrait, paperbound. Archives Néerlandais de Zoologie. Corner of front cover slightly soiled.Contains several papers on monkeys, mammal behaviour, ethology (Tinbergen).
1959 174 p., num. figs & maps, cloth. Supplement to vol. 23 of Basteria.