On the Composition of Waters of Land-Drainage. 



145 



Waters collected May 21st, 1867. 



JIl lERENTLY MANURED, COLLECTED MaY 21sT, 1807. 



3veiy year, commencing 1844. 



n Drainage-Waters in Grains per Gallon. 



assumed to occur in the waters, their composition may be represented as follows : 



1-GO 



•42 



•17 



3- -20 

 13-34 



•29 



1-03 

 •60 



1-20 



21-91 



1-17 



•13 



•21 



4-66 



16-48 



-28 



•31 



1-24 

 •51 



1-91 

 26-90 



14 



29-95 



•86 



•38 



•37 



602 



19-30 



•67 



•41 



1^07 

 •69 



2-28 



32-05 



•89 



25 



49 



33 

 09 

 67 



30 



34 

 21 



03 



32-60 



•23 



06 



42 



SO 

 53 

 39 



31 



90 

 60 



17 



21-41 



An imperial gallon contains: — 



Chloride of sodium. 



Carbonate of soda. 



Chloride of potassium. 



Carbonate of potash . 



Nitrate of lime. 



Nitrate of soda. 



Sulphate of lime. 



Carbonate of lime. 



Chloride of calcium. 



Oxide of iron. 



Phosphoric acid. 



Carbonate of magnesia. 



Soluble silica. 

 ( Organic matter and dift'er- 

 I ence. 



VOL. X, — S. S. 



