Publishing Committee. 

 <x- 



Prof. K. MitSUkuri, Ph. D., Rigakuhakushi, Director of the College 



(ex officio). 

 Prof. J. Sakurai, LL. D., Rigakuhakushi. 

 Prof. |. Ijima, Ph. D„ Rigakuhakushi. 

 Prof. F. Ömori, Rigakuhakushi. 

 Prof. S. Watasé, Ph. D., Rigakuhakushi. 



NOTICE. 



Beginning with Vol. XVI., each article has a paging of its own : 

 and the position of an article in a volume is indicated by the number 

 placed ai its head. 



It is hoped that this arrangement, which enables us to print papers 

 independently of one another, will ensure a more rapid publication of the 

 material than has been possible heretofore. 



2 ? 37 



All communications relating to this Journal should be addressed to the 

 Director of the College of Science. 



