Zöllner beschrijft de religie van de Yali vooral in vergelijking met onderzoekingen door anderen van naburige stammen. Hij kent een centrale plaats toe aan het belang van varkens- mythen en rituelen in genezingsrituelen.

Two short messages concerning New Guinea

Article on British concerns the desirability of annexation of the whole New Guinea

Syllabus, which covered almost all subjects during the blocks Tropical Health dealt with in a more elaborate form included

Sketch of the opposition from Muslim heads who offered resistance in and around the Bentoenigulf to the bringers of the Gospel

Book about a young Papuan girl named Julia

Psychological and other differences between the west and the Dutch Indies including New-Guinea illustrated with examples from personal experiences of the author

Studies on the socio-economic structure of Kapauku in Dutch New Guinea

Open letter to concerned members of the General Synod of the Dutch Reformed Church synod call on issues relating to New Guinea in 1956