Reports made to the directors of the London (Watford) Spring Water Company, on the results of microscopical examinations of the organic matters and solid contents of waters supplied from the Thames and other sources / by Edwin Lankester and Peter Redfern ; together with a chemical report on the quality of various specimens of water from chalk springs near Watford, by Thomas Clark and John Smith.

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Reports made to the directors of the London (Watford) Spring Water Company, on the results of microscopical examinations of the organic matters and solid contents of waters supplied from the Thames and other sources / by Edwin Lankester and Peter Redfern ; together with a chemical report on the quality of various specimens of water from chalk springs near Watford, by Thomas Clark and John Smith. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.