84 



ART. à. — B. KOTO : 



parently the eastern prolongation of the Yunohira vents on the 

 city side. 



Vent No. 3 or 4 was most active on the fine day of the 

 writer's visit. There were a series of bocche, 5 or even 7 in 

 number, which were mere orifices on the roof of the Nabé-yama 

 satelhtic chamber. 



The mountain was rather active this day and strongly smoking 

 on this (east) side. Periodic detonations and air-vibrations ushered 

 in renewed outpourings and clinking flows of lava in the vent, 

 either Xo. 3 or 4, which was sympathized later by all the rest, 

 exhaling only white clouds, thus proving their subterranean con- 

 nection. During the early phase the upper ones. Nos. 1 and 2, 

 were in prime, but now the lower ones (3-5). This was due to 

 the underground flow of magma and partial exhaustion, and lastly, 

 to the differentiation of liquid and gaseous substances within the 

 chamber. During the day it appeared like a wall of fumes, and 

 o™LivE- ^* night, of flames. The scene was grand and indescri- 

 fSmoto bable at Fumoto, and the air warm. The writer was 

 under a gale of dust clouds, though his position was 4 km. from 

 tlie nearest vent (see Text-fig. 23). 



Fig. 23.— Lava end at the Séto strait on Jan. IS, llJl-4. 



