[19]. Report by the Government Commission on the Chemical Quality of the Supply of Water to the Metropolis. (177.)
[20]. Medical Gazette, vol. xliv, p. 749.
[21]. History of the Cholera in Exeter in 1832.
[22]. Report of the General Board of Health on the Supply of Water to the Metropolis, 1850, p. 55.
[23]. See Report of Commissioners on the Cholera at Newcastle, etc., p. 474.
[24]. Opus cit., p. xxv.
[25]. Report of Swedish Commissioners, quoted in the Second Report of the Metropolitan Sanitary Commission, 1848.
[26]. Medical Times and Gazette, Lancet, and Association Journal.
[27]. Various conditions are requisite for the production of a disease, as they are for the production of a crop of wheat or turnips; but it is not necessary to dignify these conditions with the name of causes.
[28]. Medical Times and Gazette, 1854, vol. i, p. 182.