Humboldt, Alexander von, Humboldt, Alexander von ; Kunth, Carl Sigismund, Kunth, Carl Sigismund ; Banks, Joseph, Banks, Joseph ; Lambert, Aylmer Bourke, Lambert, Aylmer Bourke ; Salisbury, Richard Anthony, Salisbury, Richard Anthony ; Brown, Robert, Brown, Robert ; Biot, Jean-Baptiste, Biot, Jean-Baptiste ; George, George ; Humboldt, Wilhelm von, Humboldt, Wilhelm von ; Arago, François, Arago, François ; Steuben, Karl von, Steuben, Karl von ; Royal Society
London, 11.11.1817
