Lange, Erich (1889 - 1965) Prof. Dr.phil.; Professor of Fuel Geology 1946 President of the German Geological Survey; Director of the Geological Service of the GDR The estate contains: Excerpts from the file 1957 "Preparation of the commemorative event 10 years StGK (Staatliche Geologische Kommission) (contains among other things: material, elaborations and handwritten notes) Correspondences Personal letter of Gottlieb A. Seberna Handwritten notes among other things from and to geological books, to Cameroon, manuscripts to geological observation in French, German and English. Colonies (e.g. East-Adamaua), excerpts from the journal of the German Geological Society vol. 84(1932), photographs of tree trunks in a basalt stream near Meiganga

Correspondence about research trips; diaries; documents about scientific observations; sketches; photos; maps; diverse material collections; life documents; foreign manuscripts

Contains: Map of Northern Germany, language map of the German East Marks, overview sketch by Dr. Oscar Baumann Reisen im nördlichen Deutsch-Ostafrika 1891, sketch by the Portuguese colony Angola, map of the theatre of war of the German troops in China 1900, politico-military map of East Asia 1900, map of the western states of the Union, and Plan du Canal de Suez.- Geographische Skizzen Pfeils

Manuscripts, diaries, photos, correspondence, documents, printed matter