Contains among other things: Map sketch of northern Tanganyika with the camps Niansa, Usumbura and Udjidji, 1908; Map sketch of Bismarcksburg in southern Tanganyika, 1908; Map sketch of the Organization of the Defense Against Sleeping Sickness at Lake Tanganyika, 1908; Map sketch of the Rutschugi station, 1908; Map sketch of the Gottorp salt works at Magarasu, 1908

Contains among other things: Sketches of the sleeping concentration camp Usumbura, of the main camp Niansa, of the occurrence of Glossina palpalis and Trypanosamiasis in the district Usumbura, 1908; sketch of the trip of the staff doctor Dr. Breuer at the Niassasee and at the Rikwasee, 1908