108 IOWA xiCADEMY OF SCIENCES. 



NaClandKri 214 



CO2 free and partly united G1.5 



CaS04 10 3 



Nitrates 0.57 



Free ammonia 0.064 



Albuminoid ammonia 0.088 



3. JoliH Leigh- s Well. The depth is one hundred and 

 fifty feet of which the last fifty feet are in the Niagara 

 limestone. Analyzed May, 1900, by Miss Herrinton. 



Total solids 370.6 



CaCO" 215.0 



' MgCO. 102.9 



SiOi 20.8 



Fe203 and Al-Os 7.8 



NaCland KCi 6.6 



Na=C03 and K2CO3 10.00 



CO2 free and partly united 162.00 



Sulphates 0.00 



Nitrates 0.57 



Free ammonia 0.00 



Albuminoid ammonia 0.00 



4. G. W. Young's Well. This is in the same locality as 

 Mr. Leigh's. The well is one hundred and fifty-three feet 

 deep, of which fifty- three feet are in the Niagara lime- 

 stone. The analysis was made May, 1900, by F. E. 

 Welstead. 



Total solids 348.3 



CaCOs 230.0 



MgC( '3 73.9 



Si02 20.4 



Fe'iOs and AI2O3 3 OO 



NaCl 19.00 



KCI.*. trace. 



CO2 free and partly united 159.00 



Sulphates 0.00 



Nitrates 1.00 



Free ammonia 048 



Albuminoid ammonia 072 



5. Tlie Mount VeDiou City Water. The well is three 

 hundred and thirty feet deep and extends three hundred 

 and fifteen feet into the Niagara limestone. It goes 

 nearly through the Niagara, as shown by thin layers of 

 shale that were found near the base of the boring, trans- 

 itional to the heavy shales of the Maquoketa stage, beneath 



