On sewage treatment and disposal : for cities, towns, villages, private dwellings, and public institutions / by Thomas Wardle.

Licence: Public Domain Mark

Credit: On sewage treatment and disposal : for cities, towns, villages, private dwellings, and public institutions / by Thomas Wardle. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.