Aeration in aquaria

Published in 1956 in Zoologica, volume 41, issue 16, on pages 129-143

Reproduction in the king cobra, Ophiophagus hannah Cantor

Published in 1956 in Zoologica, volume 41, issue 17, on pages 145-152

Introduced mammals and their influence in native biota

Published in 1956 in Zoologica, volume 41, issue 19, on pages 163-194