House-drainage, sewerage and sewage disposal in relation to health / by Louis C.Parkes.

  • Parkes, Louis Coltman, 1857-1942.
Date:
1909
Catalogue details

Licence: In copyright

Credit: House-drainage, sewerage and sewage disposal in relation to health / by Louis C.Parkes. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    water-cress in this manner fails to remove from leaves or stalks the slimy matters deposited by sewage, in which may be present pathogenic organisms. Having regard to the little prospect there is of ensuring that sewage effluents shall be rendered innocuous by steri- lisation, and to the great uncertainty attaching to the distance which crude sewage or sewage effluent must travel in a running stream before it loses its capacity for mischief, it would appear to be desirable that water-cress should only be cultivated in waters practically free from any chance of sewage pollution, and that those beds which are supplied with the polluted waters of streams that cannot be freed from sewage impurities, should be closed under powers to be accorded to County Councils or other local sanitary authorities.