M Ä SP a * 9 Ä5 



I + * t S t I 

 THE 



JOURNAL 



OF THE 



COLLEGE OE SCIENCE, 



IMPERIAL UNIVERSITY OF TOKYO, 

 JAPAN. 



VOL. XVII., PART I. 



m £ * h * * pp « 



PUBLISHED BY THE UNIVERSITY. 



TOKYO, JAPAN. 



1901. 



MEIJI XXXIV. 



