Boshart, August
Flad, Johannes Martin
Didier, Charles
Resener, Hans
Kärrström, L. I.
Tucker, Alfred Robert
Schynse, August Wilhelm
Apel, Ferdinand
Weeks, John Henry
Ramseyer, Fritz
Stanley, Henry Morton
Chaillu, Paul Belloni du
Grant, James August
W. Hoffmann
Andree, Richard
Spillmann, Joseph
Rein, Georg Kurt