Volcano üsliima, Liza. 



31 



sea shores through the northeastern and southwestern gaps of 

 the ring-waU of the somma. Especially on the eastern part of 

 the island, the products of the central cono are so distributed over 

 the surface of the somma body as to conceal its original slope. 



Kig. 17. The eastern inner wall of the Mihara crater, on -which the alter- 

 nately acciamulatec] layers of lavas (L) and éjecta (E) are well observe^l (Fig. 1, 2d). 



The summit crater of the central cone is nearly circular, the 

 meridional and equatorial axes being about 700 ???. .and 800 m. 

 respectively. 



The crater seems to have attained its present size in 1684 

 according to historic records (p. 55). 



It is surrounded by a ridge line as shown in Figs. 18-20 

 (p. 33), where a is the lowest point (665 m. above sea level) and b 

 the highest (755 )n.). The ground slopes gently on both sides of this 

 line and the margin of the almost perpendicular cliff of the crater 

 is. obtained by descending a few steps toward the inner side. The 

 lowest point of the upper margin of the cliff is Kawajiri'^ (647 ni., 

 K in Figs. 18-20) on the north side. 



1) ill!/"l 



