Sewage disposal in the United States / by Geo. W. Rafter and M.N. Baker.

Licence: Public Domain Mark

Credit: Sewage disposal in the United States / by Geo. W. Rafter and M.N. Baker. 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.