APR 2 1 1937 
^ Ä ^ H 3^ iS 
THE 
JOURNAL 
OF THE 
COLLEGE OF AGRICULTURE, 
TOHOKU IMPERIAL UNIVERSITY, 
SAPPORO, JAPAN. 
. VOL. ¥1. PART Yl. 
^ -ik IE m ^ =L n 
SAPPORO. 
FEBRÜARY, 1915. 
