136 



llOYAL SOCIETY OF CANADA 



±: 



Fig. 12. 

 TABLE XIII 



Time 

 March 22nd, 1909 



Ions per c.c. 

 per sec. 



Temp, 12° to 7° C. Barometer 76 . 04 cms. 

 Bright day; snow s^'rig away rapidly. 



iiiii 



il.] t s w II n 



Fig. 13. 



