Publication
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Report on Birds from the Netherlands received from 1 September 1909 till 1 September 1910 Article
Notes from the Leyden Museum, 32(4), 203-209.January 1910
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Ueber einige von Herrn E. Jacobson auf Java gesammelte Trichopteren Article
Notes from the Leyden Museum, 32(1), 47-66.January 1910
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On the generic name Passerina Vieillot Article
Notes from the Leyden Museum, 32(1), 32-32.January 1910
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Beitrag zur Kenntnis der Metamorphose von exotischen Plecopteren Article
Notes from the Leyden Museum, 33(2/3), 219-222.January 1911
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On Dermaptera collected in Java by Mr. E. Jacobson Article
Notes from the Leyden Museum, 34(1), 25-30.January 1911
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On two rare Petrels, Oceanodroma monorhis and Aestrelata aterrima Article
Notes from the Leyden Museum, 33(2/3), 111-112.January 1911
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Protective resemblance between the species of Nothopeus Pasc. and Fossorial Wasps Article
Notes from the Leyden Museum, 34(1), 22-24.January 1911
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Vorläufiger Bericht über geologische Forschungen auf Java. Erster Teil Article
Sammlungen des Geologischen Reichs-Museums in Leiden. Serie 1, Beiträge zur Geologie Ost-Asiens und Australiens, 9(1), 1-76.January 1911