Plate XVIII. 



Fig. 1. — Extensive and nearer view of mud- field of Miné. 



Fig. 2. — Example of large boulders carried down along with the 

 mud-current and forming conical mound near Kawakami. 

 Mounds of this kind were formed on the débris in great mem- 

 bers (p. 110-111). 



[From photographs.] 



