, APR 29 1924 
Iß 3a ^ H A si 
THE 
JOURNAL 
OF THE 
COLLEGE OF AGRICÜLTÜRE, 
TOHOKU IMPERIAL UNIVERSITY, 
SAPPORO, JAPAN. 
VOL. YI. PART Vill. 
JE m ^ :^ n 
SAPPORO. 
JUNE, 1915. 
