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Credit
Sewage of towns. Third report and appendices of the Commission appointed to inquire into the best mode of distributing the sewage of towns and applying it to beneficial and profitable uses. Public Domain Mark. 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.