Publication
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Verzeichnis der Dubletten des „Rijks Herbarium” zu Leiden, welche im Tausch gegen ungefähr gleichwertigen Material zur Verteilung bereit sind Article
Mededeelingen van 's Rijks Herbarium, Leiden, 7(1), 91-96.January 1910
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Hierofalco gyrfalco islandus (Brünnich), a new Bird to the Avifauna of the Netherlands Article
Notes from the Leyden Museum, 32(2/3), 176-176.January 1910
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List of a collection of Birds from Western Java and from Krakatau Article
Notes from the Leyden Museum, 32(2/3), 105-166.January 1910
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On Arachnotheria longirostra (Latham) Article
Notes from the Leyden Museum, 32(4), 194-196.January 1910
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Die Arten der Brenthiden Gattung Calodromus Article
Notes from the Leyden Museum, 32(2/3), 177-183.January 1910
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Verslag. Omtrent den toestand van ’s Rijks Herbarium gedurende het jaar 1909/1910 Article
Mededeelingen van 's Rijks Herbarium, Leiden, 6(1), 79-90.January 1910
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Beiträge zur Kenntniss von Calamites undulatus Sternb Article
Mededeelingen van 's Rijks Herbarium, Leiden, 2(1), 41-57.January 1910
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Paraperipatus Lorentzi Horst, a new Peripatus from Dutch New Guinea Article
Notes from the Leyden Museum, 32(4), 217-218.January 1910