Author
Forster, Georg
19
Forster, Johann Reinhold
16
Hedin, Sven Anders 1865-1952
15
Gregorovius, Ferdinand
13
Stanley, Henry Morton
12
Arndt, Ernst Moritz
11
Hübner, Joseph Alexander ¬von
11
Kohl, Johann Georg
11
Stanley, Henry Morton 1841-1904
11
Humboldt, Alexander von
10
Baker, Samuel White
9
Gaimard, Paul
9
Sprengel, Matthias Christian
9
Bertuch, Friedrich Justin
8
Ehrmann, Theophil Friedrich
8
Groskurd, Christian Heinrich
8
Haeckel, Ernst 1834-1919
8
La Pérouse, Jean-François de Galaup
8
Nansen, Fridtjof 1861-1930
8
Forster, Johann Reinhold 1729-1798
7
Groskurd, Just Ernst
7
Milet-Mureau, Louis Marie Antoine Destouff de
7
Baumann, Oscar
6
Baumgartner, Alexander
6
Björnst°ahl, Jacob Jonas
6
Burton, Richard Francis 1821-1890
6
Böttiger, Carl August
6
Ebeling, Christoph Daniel
6
Gurk, Eduard 1801-1841
6
Hedin, Sven Anders, 1865-1952
6
Herndon, William Lewis
6
Junker, Wilhelm
6
Kanitz, Felix Philipp
6
Keppler, Paul Wilhelm von 1852-1926
6
Luc, Jean André de
6
Radde, Gustav 1831-1903
6
Schiltberger, Hans 1380-1450
6
Strauss, Friedrich Adolf
6
Strombeck, Friedrich Karl von
6
Telfer, John B.
6
Zimmermann, Eberhard August Wilhelm von
6
Anderson, George William
5
Berlepsch, Emilie von
5
Buchholz, Paul
5
Burckhardt, Johann Ludwig
5
Clerke, Charles
5
Della Valle, Pietro
5
Diest, Walther von 1851-1932
5
Ebel, Johann Gottfried
5
Fontane, Theodor
5
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