Observationsort Haparanda Hernösand Falun Upsala Stockholm Karlstad Göteborg Visby Karlshamn Vardö Bodö Kristiansund Skildesnäs 0x5 ( Krsand Köpenhamn ■Fanö ( Danm j # orkum Ylambur Swinemunde Neufahrwasser Miinstcr ChemnitzBreslau