Relations with the commander of the Territoire militaire du Tchad. - Report by Dr Ebermaier to the Imperial Colonial Office, 1903 [fol. 82 - 85] Alleged threats by African employees of French merchants about an imminent Franco-German war and the resulting seizure of Adamaua and punishment of all natives opposed to France. - Investigation, 1913 [fol. 115 - 126] Sketch of North Cameroon with the areas of the Binder (Marua) and Ngaundere posts as well as the customs posts of the Residenturen, (1912) Map of the course of the French stage road Ham am Logone - bis Lere am Benue-Fluss 1:500 000 Blueprint with coloured drawing, 1912