Enthält u.a.: Agreement between the United Kingdom and Germany respecting the boundary between British and German territories from Yola to Lake Chad. Signed at London, March 19, 1906

Will conclude contracts at Lake Chad, wants to get literature from Rohlfs

Concerning German Colonial Policy, Procedure for the Lake Chad of Cameroon

Contains among other things: Max Freiherr von Oppenheim, Rabeh and the Lake Chad Area

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

Contains among other things: Statutes of the General German Association, 1894 Agreement between Germany and France of 15 March 1894, concerning the delimitation of the protectorate of Cameroon and the colony of the French Congo as well as the establishment of mutual spheres of interest in the area of Lake Chad.

Seefried auf Buttenheim, Adolf Freiherr von, Hauptmann im Bayerischen 14. Infanterieregiment Herzog Karl Theodor. - Personnel records, 1905 [fol. 3] European. - Personnel of the German sections of the Border Commission. - Franco-German South Cameroon Border Expedition, 1905 [fol. 5 - 77] Reitzenstein, Erich Hermann, Leutnant. - Personnel list, 1905 [fol. 17] Winkler, Erwin Gotthold, First Lieutenant. - Personnel list, 1905 [fol. 19] Schriefer, non-commissioned officer. - Commanding officer to the Kamerun-Ost-Grenzexpedition, 1906 [fol. 60 - 105] Güttler, Unteroffizier, Commanding officer to the Kamerun-Ost-Grenzexpedition as replacement for the deceased Unteroffizier Bernhardt, 1906 [fol. 95 - 96] Güttler, NCO - Discharged from the service of the Kamerun-Ost-Grenzexpedition on 20 January 1907 and commanded to the Residentur der deutschen Tschadsee-Länder, 1907 [fol. 155] von Reitzenstein, Erich Hermann, Leutnant. - Resignation from the service of the protectorate of Cameroon on 30 September 1907 (decree of the Foreign Office), 1905

Enthält u.a.: Ministry of Foreign Affairs. Diplomatic documents. Africa. Paris 1898 - 1899 (4 Hefte)

Contains among other things: Political situation in the French Wadei region Map of Cameroon, south-western part of Yola with entries on agriculture and livestock M.: 1:360 000 (April 1907) Sketch of the insurrection area of the survey in the Malum - Wadei region, M.: 1:400 000 (July/Aug. 1907)

Contains among other things: Differences between the German-English Border Commission

'Transports routiers. - Interruption de la tentative d'avancer jusqu'au Lac Tchad après 'l'abandon définitif des plans peu pratiques et inutils