
Thomson's mirror marine galvanometer, 1858
1858
1858
circa 1861
1862
1858
1830 (original); 1967 (model)
circa 1861
1859
1858
1858
1860
1862
1857
1857-1858
1857-1858
1858-03-02
1860
1955; 1830
1856
1861
1861
1893-4
1934
2000-100 BCE
1858
circa 1860
1857-1858
1856
1863-7
1857
1860
c1860
1705-1737
1858
1856
1859
1856-1857
1856
1934
1930 (replica); 1834 (original)
1858
4000-2001 BCE
1856
1839 (original); circa 1988 (replica)
1860
circa 1860
1857
1857
1870-1877
1858
1668; 1924