
Engravings of colour sketches showing solar prominences by Etienne Leopold Trouvelot
1872
1872
1875
1893
1871
1916-05
1916; 1929
1870
1936
1936
1872
1898
1893
1883
1885
1878
1860-1868
1870-1872
1916
1916
1886
1889
1872
1936
1908
1900
1936
1928
1927
1898
1929
1926
1927
1895
1936
1895
1895
1872