APR 29 1924 
3, a-qy 
^2 
THE 
JOURNAL 
OF THE 
COLLEGE OF AGRIGÜLTÜBE, 
TOHOKU IMPERIAL UNIVERSITY, 
SAPPORO, JAPAN. 
VOL. YI. PART ¥11. 
\A 
/ \ 
■X IE n ^ n 
SAPPORO. 
APRIL, 1915. 
