Brussel, Paleis der Academiën 1954 168pp.met 39 figuren, 26cm., in de reeks "Verhandelingen van de Koninklijke Vlaamse Academie voor Wetenschappen, Letteren en Schone Kunsten van België. Klasse der Wetenschappen" nr.44, originele omslag, goede staat, W73089
1955 359 p., 72 figs, roy. 4to, paperbound (lower end spine a little damaged). Library stamp. Unopened copyA very detailed study of the behaviour and systematics of a group tropical rain forest army ants.
1955 360 p., 72 text figures and tables, 4to, half cloth over marbled boards. Gilt title on the spine.A very detailed study of the behaviour and systematics of a group tropical rain forest army ants. Library stamp on title, otherwise a fine clean copy in a very good, strong binding which is ideal for a large-sized book like this one.
Tervuren, Musée royal du Congo Belge 1955 359pp., avec ills. dans le texte, 33cm., dans la série "Annales du Musée Royal du Congo Belge, Tervuren (Belgique), Nouvelle série in-4. Sciences zoologiques" volume 2, brochure originale (petite inscription sur le plat supérieur), qqs. cachets, bon état, C99917