MOYKMK.Vrs OK SALTS I \ SOILS. 



67 



From ihis table it will lie s>n tlut, as an average, the salts 

 of the three soils increased in the surface layer up to the end 

 of 19 days. This, however, was not true of two of the soils 

 making up the average. In the bottom, layer the nitrates in- 

 creased, period by period, after the first day; and the same 

 relation was true of the 8 to 10 inches. These increases are 

 probably due to nitrification which was progressing in the soils. 



>^vrr. 



Till 



m 



M 



Star t 





FIG. 2. Showing the mean distribution of sulphates in three soil types result- 

 ing from capillary movement. 



In the case of the chlorides there was an increase in the sur- 

 face layer until the end of 15 days, when these fell off, but 

 increased in each and every layer below the surface during the 



