The Pliocene and Lower Pleistocene gastropods in the collections of the Geological Foundation in the Netherlands (with some remarks on other Dutch collections).
1946. Mededelingen Geologische Stichting C-IV-1-6; 116 pp. 1 fig. 6 plts. h.t. Orig. wrps. very good, lg4to.
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 Kalimantan Timur (East Borneo).
1983. Scripta Geologica 74; 80 pp. 2 fig. 4 plts. Orig. wrps. very good.
Revised determinations of East-Indian and related fossil mollusca//On an East-Indian representative of the rare gastropod genus Trochoserithium//On fossil brachyuran crabs from the East Indies.
1950. Extract Verh. Geol.-Mijnb. Gen. Geol. Ser. 15, pp. 329-356, 2 figs. 1 pl. Orig. wrps. 4to.
The Malayan species of Boysidia, Paraboysidia, Hypselostoma and Gyliotrachela (Gastropoda, Pulmonata, Vertiginidae) with a catalogue of asll the species hitherto described.
1950. Reprint:Bull. raffles Mus. Singapore No. 21; pp. 5-47, 21 fig. Orig. wrps. very good.