William Farr on the cholera: the sanitarian's disease theory and the statistician's method.
D002771:Cholera / Q000209:etiology / Q000266:history* / Q000401:mortality; D004194:Disease; D004196:Disease Outbreaks / Q000266:history; D004739:England; D004781:Environmental Exposure; D004812:Epidemiologic Methods; D004813:Epidemiology / Q000266:history; D005843:Geography; D049672:History, 19th Century; D006801:Humans; D014871:Water Microbiology