Bestand
8.Ser. 1.1894/95,3-4; 2.1895,3; 3.1895,8; 4.1896,2; 6.1898,11; 8.1898,1-2,7,10; 9.1899,1; 11.1901,6-7,10-11; 12.1901,4,6-8,10; 13.1903,3,5,7; 14.1903,1,3,10; 16.1904,1; 17.1905,5; 19.1906,10; 20.1907,8; 25.1910,8
[Sammlung Deutsche Gesellschaft für Geowissenschaften - DGG]