422 APPENDIX. [No. XXXVI.c. 



affluent Sewage every quarter of an hour. 



Salt 3-400 



Nitrogen 0-419 



Ammonia 0-032 



Organie 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 imliesitatiiigly condemn the whole of 

 them as dangerous and totally imflt 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 

 efflueiit system at Croydon was an abomination ; the effluents wei-e 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. 



loxuon: printed by william cixiwes and soss, stajiford street 

 and charing cross. 



