
Hedley's experimental model for testing adhesion.
1812
1812
1805
1826
1803-1828
1820
1807
1863-7
1808
1805-1815
2000-100 BCE
1813
circa 1805
1807
1815
1815
1810-1817
1893-4
1802
1807
1821
1805
1812
1807
1812
circa 1808
1807
1814
1802
1816
1802
1825
1808
1809
1826
1815-1825
circa 1810
1815
1806
1808
1811-1812
circa 1821-1825
1772 (original); 1919 (model)
1826
1819
1808
1815-1825
1826
1775-1799 (original); 1900-1907 (model)
1815
1824