280 AGRICULTURAL EX. STATION. [Jan. '91. 



5. Albuminoid ammonia, over .15 parts per million, 

 oni::ht to absolutely condemn a water which contains it. 



6. The total solids found in the water should not exceed 

 forty grains per gallon (571.4 parts per million). 



An examination of the previously stated results of analyses 

 indicate that Nos. 7, 10, 11, 14, 17, 18, 19, 23, 27, 29, 32, 

 36, 37, 40, 43, 44, 45, -l.'^ 50, 52, 51, 59, 63 and 64 ought 

 to be condemned as unlit for family use, while Nos. 12, 20, 

 25, 33, 39, 42, 47, 48, 49, 53, 55, 56, 58, 60 and 65 must be 

 considered suspicious. From this record it will be seen that 

 over one-third of the entire number of well waters tried 

 proved unlit for drinking. Heating well waters to the boil- 

 ing point removes, not unfrequently, immediate danger. 

 Eight samples gave unniistakaljle evidence of the presence 

 of lead. 



Parties sending on water for analysis ought to be very 

 careful to use clean vessels, clean stoppers, etc. The 

 samples should be sent on without delay after collecting. 

 One gallon is desiraljle for the analysis. 



