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The results of the chemical investigations into the alkalinity of these 

 soils are given below; A 1, it should be explained, denotes an average 

 sample of the soil, at the point A, from the surface to a depth of one 

 foot; A 2 signifies the same soil between one foot and two feet depth, 

 and so on. 



These analyses were somewhat tentative, and, owing to lack not only 

 of time, but also of the necessary filtering and other appliances, the tables 

 are studded with gaps. These drawbacks, however, do not prevent cer- 

 tain definite deductions. It is noticeable that, as a rule, the amounts of 

 Sodium chloride, and of soluble salts generally, steadily increase ae we 

 proceed downward from the surfa-ce to the six foot limit, and that this 

 downward increase becomes more rapid as we pass from A towards E. 



