Oil tlie Comj)osition of Watera of Land-Drainage. 



159 



'atkrs collected December 29th, 1869. 



1 IKIiEXTLY 3IAXURI:L), COLLECTED DECEMBER 29tH, 1S69. 



cry year, commencing 1844. 

 Drainage-Waters in Grains per Gallon. 



Peu Gallox. 



Organic matter, 

 ( Oxide of iron. 

 \ Phosijhoric acid. 



Lime. 



Magnesia. 



Potash. 



Soda. 



Chlorine. 



Sulphuric acid. 



Nitric acid. 



Carbonic acid. 



Soluble silica. 



Chloride of sodium. 



Carbonate of soda. 



Chloride of po- 

 tassium. 



Carbonate of potash. 



Cbloride of calcium. 



Nitrate of soda. 



Sulphate of lime. 



Nitrate of lime. 



Carbonate of lime. 



Carbonate of mag- 

 nesia. 



Oxide of iron and 

 phosphoric acid. 



Soluble silica. 



Organic matter and 

 diti'erence. 



I 



