These journals, used first by the New Guinea Company, and later by the New Guinea Company, and later by the Imperial Government, record each incoming letter and give such information as, number, date of receipt, Contents, How dealt with, Location, etc.

Vol. 1 Curriculum vitae (3 versions) and certificates, 1898-1901; letters to Inspector Spiecker concerning application and admission to the mission seminar, 1897-1901; health certificate, also for Bride Emma Klingelhöller, 1907 and 1913; letters and reports from New Guinea, 1907-1926; conference sermon on John 8:12, 1911; model of a school contract for registered missionaries, 1897-1901; letter of recommendation to Inspector Spiecker. Pupil, Dr., 1914; "Kali ra!" (For All!), No. 1, 1 sheet, Dr., 1914; Referat "Neuregelung in Bezug auf Wiederbesetzung der Astrolabe-Bai", 1922; Correspondence with Georg Eiffert in der Heimat, 1926-1929; Letters and Reports, as well as Circulars from New Guinea, 1929-1934; Correspondence with Emma Eiffert, 1930-1931; "Faita-Chronik", 1930-1934; Vol. 2; Correspondence with Georg Eiffert in Heimatarbeit, 1935-1953; Versorgungsangelegenheiten, 1935-1953; Obituary for daughter Maria Eiffert, 1946; Obituary and death certificate for Georg Eiffert, 1953

Letters and reports from New Guinea; land purchase contract (copy) with the New Guinea Company in Finschhafen, 1888; house construction bill Bogadjim, 1888; annual report on Bogadjim, 1889

New Guinea:; Contains: Letters and reports from New Guinea, 1887-1889; same 1889-1891; land purchase contract (copy) with the New Guinea Company in Finschhafen, 1888; house construction bill Bogadjim, 1888; annual report on Bogadjim,1889

Contains among other things: Settlement of the Kaiser-Wilhelms-Land Planting and planting of plantations Opening of government stations

Curriculum vitae, application and certificates, 1896-1901; health certificate, 1907; letters and reports from New Guinea, 1907-1928; correspondence with H. Eckershoff in Heimatarbeit, 1928-1945; health certificates for the Eckershoff couple, 1929; correspondence with Elisabeth Eckershoff, nee. Walther, 1946-1954; Versorgungsangelegenheiten, 1937, 1946 and 1958; correspondence with Prof. H. Walther and condolences on the death of his sister, 1958-1959

Contains: Feedback for the prorectorate reports; painting by Alexander Ecker by university painter Hermann (1887); donation by Robert Wiedersheimer of Ethnographica from New Guinea to the Museum für Urgeschichte; psychiatric objects by Mr. Langermann; various books, some with detailed indexes; 2 "Negerschädel" from Togo by Dr. Beck (1894); bust of general physician Beck (1894); photo collection West-Bormeo (1894); lattice micrometer (1898); Otto von Puchstein reports 20 Aegyptica; several Peruvian mummies and skulls (1900); casts and Egyptian fragments (1900); physical instruments (1902); wax model of an embryonic lizard skull to the anatomy (1903);16 lithographs to the Psyciatrische Klinik zur Wanddekoration (1903); collection of stuffed birds (1903); petrifactions (1903), donations of money; special prints by hans Spemann; estate of the pianist Olga Naswanoff (1939); painting Amazonenschlacht by Max Beckmann from the estate of Joachim Kleemann (1937) and renunciation of the Senate; donation Stelzmann; Portheim Foundation (1941),

Correspondence with Pilgrim Mission St. Chrischona about the takeover of W. Döge, 1930; curriculum vitae and medical certificate, also for bride Marianne Kästner, 1930; correspondence with Walter Döge and Marianne Kästner about engagement and departure matters, 1930-1933; travel letters, reports and circulars from New Guinea, 1930-1937; "Ein Besuch bei den Stämmen im oberen Ramu-Tal", 7 p.., ms., 1933; Negotiations with the American Board of Foreign Missions for taking overöges and sending out his bride, 1935; "Kamong, ein Martyrer", 2 p., ms., 1935; "Report on the baptism in Sarisawu (Laden) on 15.09.1935", 9 p., hs, 1935; Among the untouched tribes on the north coast of New Guinea (Bunabun-Inland), 10 p., ms., 1934; correspondence with Walter Doege on home leave, 1938-1939; correspondence with Walter Doege in Manila, 1940-1942; correspondence with Walter Doegein the USA, 1946-1963; photo of the couple Doege, 1956

Health certificate, 1902; Military service matters, 1902 and 1916; Health certificate for Miss Bleidorn (bride), 1907; Letters and reports from New Guinea, 1902-1913; Proposal for the liturgy of a christening ceremony with baptismal vow (housemaster) in German and English. in Bogadjim language, 1903; Liturgy of the Baptismal Celebration for Gumbo Paul, December 1903; Agenda for Missionary Conferences in New Guinea, 1904-1913; Letter from Gumbo with German Transmission from Diehl, 1907; Correspondence with Wilhelm Diehl in the Homeland, 1927-1939; Obituary for Wilhelm Diehl, 1940; Correspondence with Johanna Diehl and Children, 1940-1943; Obituary for Johanna Diehl, 1946

Vol. 1; Correspondence, papers, travel report, 1902-1934; Vol. 2; Letters from and to mission colleagues, also Papua Christians, 1917-1935; Vol. 3; Family Letters, 1904-1945; Vol. 4; Diary 1906-1913 and some letters, all photocopies