21
Koelling, Heinrich.
| Friedrich Andreas Perthes |
1875
22
Beyschlag, Willibald
| Friedrich Andreas Perthes |
1876
24
| Friedrich Andreas Perthes |
1881
25
Schultz, Hermann
| Friedrich Andreas Perthes |
1881
26
Klostermann, August
| Friedrich Andreas Perthes |
1881
27
Schmidt, Hermann
| Friedrich Andreas Perthes |
1881
30
Tschackert, Paul.
| Friedrich Andreas Perthes |
1888