Books subject "Humboldt, Alexander von, 1769-1859": Newest

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Letters of Alexander von Humboldt to Varnhagen von Ense. From 1827 to 1858. With extracts from Varnhagen's diaries, and letters of Varnhagen and others to Humboldt

Assing, Ludmilla, Humboldt, Alexander von, Kapp, Friedrich, Varnhagen von Ense, Karl August