Schwann's microscope (no case)
1835
1835
1934
1955; 1830
1837
1849
1830-1850
1831
1845
1849
1825
circa 1840
1837
1827-1850
1840
1842
1850
1842
1827
1837
1834
1834
1834
1840-1850
1847
1825
1842
1829
1845
1845
1837
1832
1836
1825-1835
2000-100 BCE
1835-1845
1893-4
1850
1846
1841
1837
1863-7
1837
1833
1834-1844
1837
1838
1850
1831
1839
1843