Report to the honorable the Commissioners of Sewers of the City of London, upon the results of the experiment of applying charcoal to the sewer ventilators / by H. Letheby and W. Haywood.

Licence: Public Domain Mark

Credit: Report to the honorable the Commissioners of Sewers of the City of London, upon the results of the experiment of applying charcoal to the sewer ventilators / by H. Letheby and W. Haywood. 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.