Boshart, August
Resener, Hans
Hahn, Carl von
Galton, Sir Francis
Parise, Masaniello
Stanley, Henry Morton
Bastian, Philipp Wilhelm Adolf
Cruickshank, Brodie
Sepp, Johann Nepomuk
Rohlfs, Gerhard Friedrich
Zenker, Julius Theodor
Schweinfurth / Ratzel
Finsch, Otto