Copy letter from Herbert Rix, to Dr Richard Thorne Thorne, Fellow of the Royal Society 'Dear Sir, Dr Michael Foster instructs me to write and ask whether you are willing to represent the Royal Society at the Eighth International Congress of Hygiene and Demography, to be held at Budapest, Sept [September] 1-9 this year. Your colleague, it is hoped, would be Sir George Buchanan. Yours truly, Herbert Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 6 July 1894