Private journal, 1875-1876
Letters in Samoan
Publications and speeches of Wilhelm Solf: Inaugural dissertation
Arbeiter Register, No. 6833-7389
Arbeiter Register, No. 7390-7832
Arbeiter Register, No. 6367-6832
Letters in French and Samoan
Arbeiter Register, No. 8449-8991
Arbeiter Register, No. 7833-8448
Arbeiter Register, No. 8992-9405