422 APPENDIX. [No. XXXVI.c.; 



Effluent Sewage every quarter of an hour. 



Salt 3-400 



Nitrogen 0'419 



Ammonia 0'032 



Organic matter 0'144 



Sewage towns, Norwood and Beddington. 



Organic carbon 

 and nitrogen. 



Minimum 0*114 per gallon. 



Maximum 1-786 . 



Average 0-821 



The Royal Commissioners said, " "We unhesitatingly condemn the whole of 

 them as dangerous and totally unfit for drinking." Average Thames 

 water was much better than this, only containing an average of '021 

 organic carbon and nitrogen* whilst rain-water contained '084. The 

 effluent system at Croydon was an abomination ; the effluents were very 

 difficult to trace, but he had reason to believe that not being protected by 

 notice-boards persons might drink of the water unwittingly. In conclu- 

 sion, he hoped the discussion, which had been taken up with such earnest- 

 ness by so many leading engineers, and which would be read very widely, 

 would not be wasted, but that before long the sewage question would be ' 

 settled in a more satisfactory way than it was at present, especially at 

 Croydon. 



L\: PRINTED BY WILLIAM CI.mVKS .\M> SONS, STAMFORD L>lKKKT 

 AND CHAKIXG CROSS. 



