Copy letter from Herbert Rix, to Sir George Buchanan, [Fellow of the Royal Society] 'Dear Sir George, Dr Michael Foster instructs me to write and ask whether you would be 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. Dr Thorne Thorne is to be invited to act as your colleague. Yours truly, Herbert Rix Asst. Sec. R.S. [Assistant Secretary, Royal Society]'. 6 July 1894