Christening ceremony in Tanga, 1904; trip to Gombera, 1904; report about the visit of Professor Haussleiter in Tanga, 1909; thanksgiving song of Africa to the emperor, in Swahili by Jakobo Ngombe, teacher in Tanga, translated into German. by Siegfried Delius, 1910; How our native helpers preach the gospel to the Gentiles, report by Petro Sebwijo in Kibafuta near Tanga, 1914; In Maasailand, our relations with the Maasai and the resulting tasks, 10 pp, ms, 1914; Journey to Maasailand, June 1915; The mission work in Digoland during the war, 1914-1917; The mission work in Tanga and in the hinterland during the years of war, 1914-1917; Health certificates because of retirement, 1926; Five letters from Jakobo Ngombe, 1930-1936; Correspondence with Helene Delius, 1944-1967; Notice of death from Helene Delius, née Layer, 1968

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Contains among other things: Production of hard fibres in Dutch India

Enthält u.a.: C.H. Dale, The truth about Sisal as a bale covering for Cotton. Hg.v.American Manufacturing Company. Brooklyn USA 1935

Contains: Pencil drawings of native types and diary notes

ca. 1910, Stadtarchiv Nürnberg, E 10/32 NL Friedrich Stahl

Contains among other things: Salary statement, savings account, settlement account; transcript from the contract with the missionary craftsman Skroblies of 1937

1909-1916, Federal Archives, BArch R 1003 Authorities of the protectorate Deutsch-Ostafrika

Contains among other things: Map to the report of the Obermedizinalrat Prof. Dr. Nocht on his journey through D e u t s c h - O s t a f r i k a and British East Africa, 1911; sketch of the occurrence of sleeping sickness in the district of Ssongea, 1912

Contains above all: Sketches of the fight against sleeping sickness at the border between German East Africa and Portuguese East Africa, 1913