C. Beets

• Analyse des populations neutroniques rapides par observation des protons projetés dans ľemulsion ionographique
• De geologie van het westelijk deel van het heuvelland van Monferrato tusschen Turijn en Murisengo
• Molluscan fauna of the Lower Gelingseh Beds s. str., Sangkulirang area, Kalimantan Timur (East Borneo) ; Notes on Buccinulum (Gastropoda, Buccinidae), a reappraisal ; Neogene Mollusca from the Vogelkop (Bird's Head Peninsula), West Irian, New Guinea
• Note on Mollusca from the Lower Mentawir Beds, Balikpapan Bay area, Kalimantan (East Borneo) ; Late Miocene Mollusca from Tapian Langsat and Gunung Batuta, Sungai Bungalun area, Kalimantan (E. Borneo)
• Preangerian (Late Miocene) Mollusca from a hill near Sekurau, northern Kutai, Kalimantan Timur (East Borneo) ; Comments on Acantinella, Preangeria and Taurasia (Muricidae, Drupinae) ; Mollusca from Preangerian deposits of Mandul Island, northeastern Kalim
• Test of calorimetry for high burn-up plutonium