Filchner, Wilhelm
Thurnwald, Richard
Guenther, Konrad
Sander, Ludwig
Huguenin, C.
Salzmann, Erich von
Verlag Kolonialpolitischer Zeitschriften G.m.b.H.
Grothe, Hugo
Wichmann, Arthur
Murray, John Hubert Plunkett
Friederici, Georg
Stein, Aurel
Baedeker, Karl
Westermann, Diedrich
Clark, Robert Sterling and Sowerby, Arthur