40 The Purification of Sewage by Bacteria. 



cost of disposing of the sludge completely barred its adoption 

 in any large town. 



Mr. J. Brown said he had listened to the paper with great 

 interest, an interest enhanced by his long acquaintance with 

 the inventor of the Septic Tank System, Mr. Donald Cameron, 

 for whom he had the highest regard. He believed that any- 

 thing recommended by Mr. Cameron would merit their most 

 careful consideration. 



Mr. Martin then acknowledged the vote of thanks, and 

 replied briefly to questions which had been asked during the 

 discussion. He concluded by thanking the Chairman for 

 presiding. 



