Publication
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List of the species of Calamites with enumeration of the figures as far as they are doubtful or indeterminable or belong to other species Article
Mededeelingen van 's Rijks Herbarium, Leiden, 24(1), 1-41.January 1915
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Myriopoden von Ceram und Waigeu Article
Bijdragen tot de dierkunde, 20(1), 1-13.January 1915
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On a collection of land and Freshwater and Marine Mollusca from Waigeu, Ceram, Pulu Weh and Java Article
Bijdragen tot de dierkunde, 20(1), 15-33.January 1915
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Studien über Foraminiferen aus Ost-Asien Article
Sammlungen des Geologischen Reichs-Museums in Leiden. Serie 1, Beiträge zur Geologie Ost-Asiens und Australiens, 10(1), 1-18.January 1915
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Aid to the determination of the described species of the Coleopterous genus Helota Mc L., and description of a new species Article
Zoologische Mededelingen, 1(15), 229-240.January 1915
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A systematic catalogue of the Coleopterous family Helotidae in the Leiden Museum Article
Zoologische Mededelingen, 1(9), 125-139.January 1915
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Catalogus der Nederlandische Mollusca van 's Rijks Museum van Natuurrlijke Historie Article
Zoologische Mededelingen, 2(5), 33-56.January 1916
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On a new genus of Aphroditidae from the Netherlands' East-Indies Article
Zoologische Mededelingen, 2(8), 63-64.January 1916