January 24th, 1923. Vol. XLIV., Art. 7. 



V 



^ . jri 1^ @ 7^ ^ 



m ^ ^ ^z m- 



JOUENAL 



OF THE 



COLLEGE OF SCIENCE. 



IMPERIAL UNIVERSITY OF TOKYO. 



Matajiro Yokoyama, 



On Some Fossil Shells from the Island of Saishü in the 

 Strait of Tsusima. 



TOKYO. 



PUBLISHED BY THE UNIVERSITY. 

 TAisHo xn. 



