Engels' reserve describes how untreated sewage made terrible odours and turned the rivers green in industrial metropolitan areas. In 1854 John Snow traced a cholera outbreak in Soho in London to fecal contamination of a general public drinking water nicely by a house cesspit. Notify us about this example sentence: https://spencerahmrv.ouyawiki.com/692499/a_simple_key_for_industrial_unveiled