JOURNAL OF THE COLLEGE OF SCIENCE, TOKYO IMPERIAL UNIVERSITY, JAPAN. 

 VOL. XXXVIII., ARTICLE 3. 



The Great Eruption of Sakura-jima in 1914. 



By 



Bundjirô KOTÔ, Ph. I)., RigakuhakusM, 

 Professor of Geology, Science College, Imperial University of Tokyo. 



With 24 plates and 49 text-figures. 



Introduction. 



The eruption of the insular volcano of Sakura-jima on 

 January 12th, 1914, was not only unusual in its magnitude, but 

 also in its bilateral eruptions accompanied with copious outpouring 

 of lava-flows which plunged themselves into the surrounding seas. 

 As such remarkable phenomena seldom occur twice in a life-time 

 even in our volcanic Japan, the writer made two trips to the 

 actual scene of activit}^ Both the University and the Earthquake 

 Investigation Committee granted a generous subsidy for the purpose. 

 The present paper is nothing more than a preliminary record of 

 what he has seen in the field and observed in the laboratory, and 

 does not pretend to be an exhaustive account of the recent sub- 

 terranean convulsions at the world-known Sakura-jima. 



Special acknowledgments are due to Assistant Professor M. Kanai, 

 of the Higher School of Agriculture and Forestry, and 



