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Credit
Metropolitan and town sewage, their nature, value, and disposal : with considerations on drainage, sewers and sewerage, sketches of the metropolitan water supply, and of the legislation on sewers, ancient and modern / by A. Sayer. Public Domain Mark. Source: Wellcome Collection.
Provider
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.