New fleas from South Africa

Published in 1930 in Novitates Zoologicae Tring, volume 35, on pages 250-253

On two undescribed Neotropical birds

Published in 1930 in Novitates Zoologicae, volume 35, on pages 265-267
Authors:

Two new American fleas

Published in 1930 in Novitates Zoologicae Tring, volume 35, on pages 268-269
Authors:

II. My Dutch New Guinea Expedition, 1928

Published in 1930 in Novitates Zoologicae, volume 36, on pages 20-26
Authors: Ernst Mayr

On some South African fleas

Published in 1930 in Novitates Zoologicae, volume 36, on pages 129-138
Authors: Karl Jordan