Ar« Soils Poor in SO3 Benefited by Sulphate*:' j^ 



(B). With general manure. 



No. III. Fukushima soil. 

 (A). Without general manure. 



i). A part of this increase by limestone may be due to the improvement of the mechanical, 

 condition of the clay soil. Further communication on this effect will follow later on. 



