Section 111., 1908. 



[175] 



Trans, R. S. C. 



XVI. — The Mineral Constituents of the Ottawa River Waier, 1907. 

 By Frank T. Shutt^ M.A., and A. Gordon Spencer, M.Sc. 



(Read May 26th, 1908.) 



Analyses of the water of the Ottawa river have been made from 

 time to time by several chemists, but so far as is known by the writers 

 all the examinations, with one exception, have been made from the 

 sanitary standpoint and had for their sole object the determination of 

 the purity of the water at different places along the course of the river. 

 Many such analyses have been made by the writers in the past and it 

 might be interesting in connection with the present investigation, as 

 showing the general character of the water, to record herein some of the 

 data which have been obtained at the Laboratory of the Experimental 

 Farms, Ottawa. 



sanitary analyses of the OTTAWA RIVER WATER 

 From records of the Chemical Laboratory, Central Experimental Farm, Ottawa, Ont. 



Date 



Dec. 22nd, 188; 



Oct. 18th, 1898 



Dec. 7th, 1898 



May 8th, 1899 



Aug 22nd, 1905 

 March 12th, 1907 

 July 16th, 1907 



LOCALITY. 



Mouth of clear water inlet, in front 

 of screen, Ottawa 



Tap in Laboratory, Central Exp 

 Farm, Ottawa 



Tap in Laboratory, Central Exp 

 Farm, Ottawa 



Tap in Laboratory, Central Exp 

 Farm, Ottawa 



Intake No. 4 Crib, Ottawa 



Above Chaudière Falls, Ottawa. . 



.020 



.008 



.015 



None 

 .010 



.120 



.145 



.233 



.177 

 .220 



.148 



.059 



.099 



.107 

 .100 



53.0 



55.6 34.0 



42.4 



28.0 



48.8 22.8 

 62. 4| 36.4 

 54.6 30.6 



46. li 30.3 



I 



21.6 



14.4 



26.0 

 26.0 

 24.0 

 15.8 



Remarks : 

 present in traces 



Water generally clear with marked brownish yellow colour, odourless; phosphates 

 only. 



