
Thomson's mirror marine galvanometer, 1858
1858
1858
circa 1861
1858
1830 (original); 1967 (model)
circa 1861
1859
1858
1858
1860
1858-03-02
1860
1955; 1830
1861
1861
1934
1858
circa 1860
1893-4
1863-7
2000-100 BCE
1860
1705-1737
1858
1859
1934
1839 (original); circa 1988 (replica)
1860
circa 1860
1870-1877
1858
1930 (replica); 1834 (original)
c1860
1858
4000-2001 BCE
1668; 1924
1990-95
1610; 1923
1642-1649 (original); 1883 (model)
1936
1860s
1834-1836
1860
1860s
circa 1860
1860
circa 3000 BCE
1858
1859
1859
1859