160 



KEPORT 1873. 



Table III. — Breton's Sewage-Farm. 



Statement showing the Monthly Quantities of Sewage distributed and Nitro- 

 gen contained therein, and of Effluent Water discharged and Nitrogen 

 contained therein, for the period from March 25, 1871, to March 24, 1872. 



The proportion of nitrogen escaping in the effluent water to the total 

 quantity applied is therefore -1067, or about y^. 



