^3. c2.Q5- 
APR 29 1924 
Is 3^ ^ H A 5^ 
THE 
iOURNAL 
OF THE 
COLLEGE OF AGRICULTURE, 
TOHOKU IMPERIAL UNIVERSITY, 
SAPPORO, JAPAN, 
VOL. YI. PART IX. 
:A: iE pg ^ -h - ^ 
SAPPORO. 
NOVEMBER, 1915. 
