— 30 — 



The results of the researches in the years 1911 and 1912 are as 

 follows : — 



Quantity of Fallen Leaves 



The forest feature where the fallen leaves were collected may be 

 summarised as follows: — 



The quantities of the principal ingredients found in fallen leaves per 

 hectar a year round based on the analysis above ref ered to is as follows : 



Ingredients 



Nitrogen (N) .. .. 

 Phosphoric acid (PjOs) 

 Potash (K.O) .. .. 

 Lime (CaO) 



Kuromatsu Forests 



per hectar. 

 33.2 kg. 



6.8 



4.8 



33.7 



Kunugi Forests 



per hectar. 

 40.3 kg. 

 6.0 

 10.1 

 45.5 



