Vo'cano O.shima, Llzn. 



25 



and granularity, consisting of plagioclaso, augite, and magnetite) 

 with various widths, ranging from a half to several meters, traverse 

 the cliff in all directions (PL VI. EF). 



Fig. 14. Fiuieshima (F), on the east coast and the 170 m. clifE (f) 



opposite to it, viewed southwards (Fig. 1, 3dj. 



i • • • • Flat land consisting o[ overflowed lavas and éjecta. 



Scoriae Accumulation on the Southeastern Flank. — In the 



southeastern part of the island an accumulation of brown scoriae 

 nre seen. Those are exposed on the walls of valleys and of 

 cuttings along roads, being found in alternate layers with the 

 ■somma lavas, as well as on the surface of the ground. The 

 scoriae accumulation exposed on the cliff opposite to Fudeshima 

 (p. 24) is an example. That the scoriao are far more abundantly 

 found in this part than any other shows that these scoriaceous 

 materials were discharged in all probability by local volcanic 

 actions on this part of the flank, though the position of their 

 centres cannot be determined exactly. No doubt these materials 

 were not supplied by one continuous action only, but repeatedly 



