1912.1 



PUBLIC DOCUMENT — No. 31. 



43 



wise the average of the several abnormal soils wliieli have shown 

 strong indication of overfertilization. Kesults calcnlated to 

 20 per cent, moisture basis on soils. 



Table 7. — • Atnounts dissolved by Hydrochloric Acid {Specijlc Gravity 



1.115). 



Table 8. — Water Soluble Constituents in Average Normal and Abnormal 



Tobacco Soils. 



The results of analysis of the different soils indicate that 

 the injurious effect upon the growing plants, if due to the 

 accumulation of plant food elements, must have resulted from 



