42 



EXPERIMENT STATION, 



[Jan. 



Table 5. — Water Soluble Constituents contained in Normal Surface Soils 

 used Jar Over Thirty Successive Years for the Cultivation of Tobacco. 

 Underhjing Subsoil Open and Porous, furnishing Good Facilities for 

 Drainage. 



Table 6. — Water Soluble Constituents contained in Subsoils. Samples 

 taken from Field used for Over Thirty Stwcessive Years for the Cultiva- 

 tion of Tobacco. Subsoils of a Sandy Character, Open and Porous, in- 

 suring Good Drainage. 



For the sake of comparison a tabic has been prepared J»iving 

 the average composition of the three normal soils including 

 both the active hydrochloric acid and water solutions, and like- 



