1939 xvi, 191 p, 16 col. pls, paperbound. Library stamp, else good copy.
1939 xii, 191 p., 16 coloured plates with explanatory text leaves, blind quarter cloth over marbled boards with printed cover mounted on front board. A detailed study listing and figuring many subspecies and infrasubspecific morphs, as well as other, related species not mentioned in the title. Also published in the Abhandlungen der Österreichischen Entomologen- Verein. A good clean copy.
1939 xii, 191 p., 16 coloured plates with explanatory text leaves, contemporary half calf with gilt title on spine. Discusses the many subspecies, varieties and teratological forms of these wide-spread Pieridae. Also published as Abhandlungen der Oesterreichische Entomologen Verein. A good copy.
1939 xii, 191 p., 16 coloured plates with explanatory text leaves, contemporary half vellum over cloth boards with paper label on spine. Discusses the many subspecies, varieties and teratological forms of these wide-spread Piridae. A,lso published as Abh. Oesterr. Entomologen Verein. With the entomological bookplate of Walter Dietrich Stöver on the front flyleaf, and the small stamp of the malacologist and ecologist Herbert Ant. A good copy.