36 PRCCEEDINGS OF THE CANADIAN INSTITUTE. 



TWENTY-FIRST MEETING. 



Twenty-first Meeting, 6th April, 1889, the President in the 

 chair. 



Exchanges since last meeting, 37. 



Mr. O. J. Klotz was elected a mennber. 



The President nominated the following Committee in pur- 

 suance of the Resolution passed at last meeting : — The Coun- 

 cil of the Institute and Messrs. T. R. Clougher, John Notman, 

 R. VV. Phipps, A. Harvey, A. Rankin, Andrew Elvins, A. F. 

 Chamberlain, and Dr. P. H. Bryce. 



Dr. W. Canniff read a paper on "The Value of Sanitation." 



Mr. Levi. J. Clark read a paper on " The Sewage Problem 

 in Toronto." 



There are three plans at pre.sent before the citizens for tlie disposal 

 of the city sewage. I shall describe them as : 1st, Messrs. McAlpin 

 and Tully's ; 2nd, Mr. Sproatt's ; and 3rd, Messrs. Hering and Gray's. 

 They all recommend two intercepting sewers, a high level one along 

 the line of Gerrard street, and a low-level one along Front sti'eet, 

 having a fall in each case from west to east, and extending from 

 about Garrison Creek sewer to near the Don. Then Messrs. McAlpin 

 and TuUy recommend a connecting sewer joining Gerrard and Front 

 at their eastern extremities, and continuing out into the lake to a dis- 

 tance of 4,100 feet, at a point east of the Eastern gap, to deep water, 

 the dischai-ge pipe to be a seven-foot steel pipe. The other two 

 schemes recommend a continuation of the Gerrard street sewer 

 across the Don and eastward to near Victoria park, where the sewage 

 would be carried out into the lake through a six-foot pipe, by the 

 second scheme 3,500 feet long, and by the third 2,000 feet long. In 

 the second scheme the Don was to be crossed by a bridge 40 feet high, 

 in the third the river was to be siphoned under. Both the latter 

 schemes require the pum))ing up of the sewage from the lower level 

 sewer into the high-level one. The first scheme requires no jnnui)ing, 

 being a purely gravity scheme. 



