Section IV., 1909 



[13] 



Trans. R. S. C. 



II. — Bacteriological Analyses of Ottawa River Water. 

 By F, C. Harbison and J. Vandeeleck. 



Bacteriological J^aboratories, Macdonald College, P.Q., Canada. 

 (Read May 27th, 1909.) 



The water of the Ottawa River has been characterised as an " upland 

 peaty " water, and the results of a number of analyses made by Shutt 

 and others show it to be of fairly constant chemical composition. It 

 contains a rather high percentage of organic and volatile matter, as 

 indicated by the marked albuminoid ammonia and loss on ignition, and 

 the total solids are low. 



The following table gives the average of six analyses made by Shutt 

 and Spencer! — arranged in tAvo groups, one under summer and the 

 other under winter conditions. 



Date. 



Locality 



:3 



X! 



May 8, 1899 

 Aug. 22, 1905 



Tap in Lab., Central Exp. 



Farm, Ottawa 



Intake No. 4 Crib,Ottawa 



Mar. 12, 1907 Above Chaudière Falls, 

 Ottawa 



ppm. 



None 

 .010 



ppm. 



.177 

 .220 



ppm. 



.107 

 .100 



ppm. 



.3 

 .6 



ppm, 



48.8 

 62.4 



ppm 



22.8 

 36.4 



54.6 30.6 



ppm. 



26.0 

 26.0 



24.0 



Dec. 22, 1887 



Oct. 18, 1898 

 Dec. 7, 1898 



Mouth of clear water in- 

 let, in front of screen 

 Ottawa 



Tap in Lab., Central Exp. 

 Farm, Ottawa 



Tap in Lab., Central Exp. 

 Farm, Ottawa 



.148 

 .059 

 .099 



.5 53.0 



55.6 

 42.4 



34.0 

 28.0 



21.6 

 14.4 



According to E. A. Daly, the Geologist of the International 

 Boundary Commission, the river above the city of Ottawa drains a 

 t}"pical pre-cambrian terrane, and the results of Shutt's and Spencer's 



