APR 29 1924 
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MUSEUM OF COMPARATIVE ZOOLOGY 
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THE 
JOURNAL / 
OF THE 
COLLEGE OF AGRICULTURE, 
TOHOKU IMPERIAL UNIVERSITY, 
SAPPORO, JAPAN. 
YOL. IY. PART YI. 
m is& m -t ra + - n 
SAPPORO. 
DECEMBER, 1911. 
5 
