Copies of the letters written by the Foreign Secretaries of the Royal Society Letters sent by the Foreign Secretary of the Royal Society. These were; 17 June 1784 Charles Peter Layard 22 March 1804 Thomas Young M.D. 30 November 1830 Charles Konig 30 November 1837 Captain William Henry Smyth, R.N. 30 November 1839 John Frederic Daniell 1 December 1845 Lieutenant Colonel Edward Sabine 30 November 1850 Captain William Henry Smyth R.N. 24 June 1784-20 December 1847