KHABTOrM WATEK-SL'l'IM.Y 



29 



As pointed out by Dr. Todd, it is evident from the foregoing analyses that the 

 quantities of manganese show considerable differences in the different wells tested — 

 the water from the small surface well containing the highest amount, and that from 

 the deep well (No. 7) the lowest. Thus : — 



(Tliese figures refer only to the analyses made during the month of July, as the results 

 of analyses made at different seasons might not be comparable). 



Dr. Todd further pointed out tiiat the above results showed a certain parallelism 

 witli the following results of rough tests for manganese made at his request by 

 Mr. Goodson, of the boring samples of Well No. 7 down to a depth of HO metres : 



