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Humboldt, Alexander von (1769-1859) (2561)
Buschmann, Johann Carl Ed. (1805-1880)(768)
Berghaus, Heinrich Karl Wilhelm (1797-1884)(101)
Humboldt, Alexander von (1769-1859) (2561)
Buschmann, Johann Carl Ed. (1805-1880)(768)
Berghaus, Heinrich Karl Wilhelm (1797-1884)(101)