58,1=1895; 64,4=1903; 69,9=1904; 64,14=1905; 66,3=1906; 71,1=1907; 76,2=1908; 76,3=1909; 77,6=1910; 77,7=1911; 78,4=1912; 78,5=1913; 80,1=1914; 80,2=1915; 80,4=1916; 80,5=1917; 80,7=1918/20; 80,8=1921/23; 80,9=1924/26; 85,3=1927/30; 85,4=1896/99; 85,5=1900/02; 87,4=1931/35; 89,1=1936/40; 92,1=1941/45; 92,3=1946/50; 100,1=1951/55; 112,1=1961/65 von: Pflanzenphänologische Beobachtungen in Finnland
67,2=1904; 68,1=1905; 71,2=1906 von: Ukonilmoista Suomessa
66,[4]=1903; 67,2=1904; 68,1=1905; 71,2=1906 von: Öfver åskvädren i Finland
58,2=1895; 64,5=1903; 64,10=1904; 64,11=1905; 64,12=1906; 64,13=1896; 67,3=1907; 77,3=1908; 77,4=1909; 77,5=1910; 78,2=1911; 83,2=1912; 83,4=1913; 83,6=1914; 83,7=1915; 83,8=1916; 84,1=1917; 84,4=1918; 84,6=1919; 84,7=1920; 84,8=1921; 84,9=1922; 84,10=1923/25; 85,1=1926/28; 85,2=1929/30; 87,1=1897/1902; 87,3=1931/35; 89,2=1936/40; 92,2=1941/45; 92,4=1946/50; 100,2=1951/55; 112,2=1961/65 von: Tierphänologische Beobachtungen in Finnland