298 



S. Yos/mcara — On the Bonin Islands. 



Oshifnd 



^Hachyo-jima 



tcu^onnazss 7?ocfcs 

 ^^^mUks bland 



1 



I 

 I 





% ^Muio-jimd suiter 

 % ^ , 



1 o 

 ^ HaHfCtjima sutgr. 



t^O'C.Xontf. 



% 



Fig. I.— To illustrate the Neo-Yolcanic Chains of the Japanese Islands. 

 The shaded portions indicate lines of Tolcauic disturbance. 



