Disease and putrescent air. Some principles which must govern the efficient ventilation of sewers, and the effective hygenic treatment of "sewer gas" : also, the sanitary ventilation of house drains and connections / by Thomas Rowan.

Licence: Public Domain Mark

Credit: Disease and putrescent air. Some principles which must govern the efficient ventilation of sewers, and the effective hygenic treatment of "sewer gas" : also, the sanitary ventilation of house drains and connections / by Thomas Rowan. Source: Wellcome Collection.