Report to the honorable commissioners of sewers of the city of London, on sewage and sewer gases, and on the ventilation of sewers / by Henry Letheby.

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Report to the honorable commissioners of sewers of the city of London, on sewage and sewer gases, and on the ventilation of sewers / by Henry Letheby. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.