THE LIFE OF DEVILS LAKE 



1- 



53 



z - 



3- 



<t - 



5- 



b- 



1 ' 



a 



CO:,, M CO^ 



7~Z^ 



I I 1 1 I I 



!O0 300 W50 5l» «<» TOOf.p t^ 



i<r 20' 





23' Z"*' Tfy^f. 



Figure 15. Temperature and CO2 graph, for Stump Lake (middle) 7/10/18. Ordinates 



represent depths in metres, abscissas temperatures in degrees centigrade, 



c. c. of Oj pr. 1. and ppm. of carbonates. 



