Recent  

1. The DC powered service of the Berlin suburban railways disturbed the observations in Potsdam and Seddin. 2. A suitable location for the establishment of a new observatory was found near by the small town of Niemegk. 3. The “Adolf-Schmidt-Observatorium für Erdmagnetismus Niemegk” was officially opened on 23 July 1930, Adolf Schmidt’s 70^th. 4. The observations started on 1 January 1932. 5. The Niemegk measurement series span over 92 years only interrupted at the end of World War II.

This paper deals with historical auroral photographs taken at the Sodankylä Geophysical Observatory (Finland) in 1927–1929. These photos are the first ones taken in Finland. The work was a co-operation with the Norwegian auroral team and Carl Störmer. The auroral material was recently found in the archive of the Finnish Meteorological Institute and is now published first time for the international scientific community.