Letter from Keuschling [?], Brussels, to Dr William Farr, Chief of the Statistical Section, General Registrar Office, Somerset House, London Relating to a recent edition of the journal 'Moniteur belge', which included a report from [Fourth] International Statistical Congress in London in July 1860. Keuschling [?] discusses in depth the methodology and objectives of statistical and demographic observations. 16 October 1860