3.
Letter 1831-10-09, s.l.
Humboldt, Alexander von, 1769-1859 (author)
Duméril, André-Marie-Constant, 1774-1860 (addressee)
Despretz, César-Mansuète, 1792?-1863 (associated name)
letter
1831-10-09 - According to French postal mark
Waller Ms de-02490 Waller - German/Austrian Collection
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