DISSOLVED MATTER CONTAINED IN RAIN-WATER. 



149 



Table V. — Shewing quantity of dissolved matters in lbs. per 

 acre received in different seasons. 



Attention has been called to the fact that the ratio of sulphuric 

 anhydride to chlorine is always higher in rain-water than that 

 existing in sea-water, shewing that a proportion of the sulphuric 

 anhydride is derived from other sources than sea-water. In two 

 samples of sea-water, collected outside the bar at Lake Forsyth, 

 and at Sumner, sulphuric anhydride and chlorine were found as 

 follows : 



