Engravings of colour sketches showing solar prominences by Etienne Leopold Trouvelot
1872
1872
1870
1875
1872
1880
1871
1870-1872
1936
1860-1868
1886
1872
1883
1898
1911
1916-05
1893
1936
1872-1884
1917
1858-1861
1872
1878
1885
1893
1889
1861
1936
1878
1861
1878
1861
1917
1878
1926
1861
1861
1878
1869
1869
1869
1916; 1929
1926
1926
1869
1869
1916
1916
1926
1926