Publication
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Zwei neue Serphiden aus Java (Hymenoptera) Article
Notes from the Leyden Museum, 30(1), 92-94.January 1908
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Observations on some species of the genus Lyramorpha Westw. (Hemiptera Heteroptera) Article
Notes from the Leyden Museum, 30(1), 47-51.January 1908
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E. Jacobson’sche Hymenopteren aus Semarang (Java). Evaniden, Braconiden und Ichneumoniden Article
Notes from the Leyden Museum, 29(3/4), 209-260.January 1908
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Notizen über Gerstaecker’s Myrmeleoniden Article
Notes from the Leyden Museum, 30(1), 57-62.January 1908
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Contribution to our knowledge of the Avifauna of the Netherlands, being a list of all the species of birds hitherto observed, with special references to specimens in the Leyden Museum Article
Notes from the Leyden Museum, 30(2/3), 129-214.January 1908
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On New-Guinea Birds. — II Article
Notes from the Leyden Museum, 30(4), 225-244.January 1909
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A new and curious Burmese Ascalaphid from the Genoa Museum (Glyptobasis spinicornis) Article
Notes from the Leyden Museum, 30(4), 245-247.January 1909
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Diagnosen neuer Fische der Siboga- Expedition Article
Notes from the Leyden Museum, 31(1), 143-169.January 1909