Handbook of hygiene and sanitary science

according allowed already amount animal appear arrangements authority average become buildings carbonic acid carried causes cent Chapter cholera classes close communicating connected considerable consists construction contained cubic feet depend direct discharged disease disinfected districts drains effects efficiently enteric epidemic estimated evidence examined experiments extent fever filtering fresh air gallons give given ground head heat hospital hour houses important impurities increased inlets instances least less lime matter means measures Medical Officer nature necessary observations obtained organic outbreak Parkes passes patient persons pipes population possible practical prevent prisoners Privy produced proved quantity receive regard removed river sanitary sewage sewers situated soil solution sufficient supply surface taken tank tion towns various vegetable ventilation walls ward whole