250 



^V. H. HOBBS THE ASIATIC ARCS 



>ALAMAGAN t. 



GUGUAN I 



; 



LEGEND 



Mo,n arc. outer edge » ZEAUANDIA BANK 



Zone of extinct 

 volconoes 



SERIGAN I 



Zone of octive 

 volconoes / 



QANATAHAN 1 



ESMERALDA SHOAL 



Z M.les 



FiGi'RE 2. — Characters of the Islands composing the Marianne Arc 



