Cloud study by Luke Howard
1803-1811
1803-1811
1960
1803-1811
1955
1946
1803-1811
1974
1846
1849
1954
1975
1954
1838-1851
1961
1866
1930
2001
1803
1942
1956
1955
1827
1803-1811
1949
1803-1811
1945
1950
1807
1946
1937
1951
circa 1831
1838
circa 1833
2000
1957
1962
1939
1803-1811
1935
1961
1958
1803-1811
1860
1946
1956
1803-1811
1803-1811
1957
1940