Originalkarte von Burton's u. Speke's Entdeckungen in Inner-Afrika 1857 u. 1858
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Die deutschen Kolonien in Afrika
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The Last Journals of David Livingstone in Central Africa, from 1865 to his death. Continued by a narrative of his last moments and sufferings, obtained from his faithful servants Chuma and Susi, by H. Waller. With portrait, maps, and illustrations
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Übersichtskarte des Nordosthorns Afrikas nebst Darstellung der VII zoogeographischen Gebiete