The Eruption of Bandai-san. 



By 



S. Sekiya, 



Professor of Seismology, 

 and 



Y. Kikuchi, 



Assistant Professor of Geology, Imperial University 



With Plates XY-XX1Y. 



"When the news of the eruption of Bandai-san in the Province of 

 Iwashiro, which took place on the morning of July loth, 1888, was 

 received in Tokyo, the President of the Imperial University directed 

 us to proceed at once to the spot and to fully investigate that terrible 

 subterranean convulsion and its attendant phenomena. We started 

 from the capital on the 18th and arrived at the scene of the disaster 

 on the 19th. During the next ten days we made several ascents 

 and descents by different routes, travelled over the devastated lands, 

 and collected all the information that we could by examination and 

 inquiry on the spot. In order, however, to perfect our investigations, 

 we determined to camp for some days on the volcano, and at the 

 same time to survey the dimensions of the newly opened crater and 

 therefrom to estimate the cubic content of the mass that had been 

 blown away. At our request, the President despatched Mr. I. Toya, 

 CE., a graduate of the University, to take charge of the surveying 

 work. Equipped with provisions, theodolite, levels, and other instru- 



