SEWAGE 



AND THE 



BACTERIAL PURIFICATION 

 OF SEWAGE 



BY 



SAMUEL RIDEAL, D.Sc. (LoND.) 



Fellow of University College, London; 



Fellow of the Institute of Chemistry, of the Chemical Society, 



AND OF the Royal Sanitary Institute- of Great Britain; 



Sometime Vice-President of the Society of Public Analysts, and 



President of the Association of Managers of Sewage Disposal Works 



Author of 



"Water and its Purification " and ''Disinfection and the 



Preservation of Food." 



THIRD EDITION. 



Xonbon : 



The Sanitary Publishing Co., Ltd. 



John Wiley & Sons. 

 1906 



