PLATE V. 



The Plate V is intended to show tlie geographical dis- 

 tribution of the Tertiary basalts with intercalated sedimentaries 

 and several Recent formations, one among the latter being the 

 coral-reefs which fringe the coast all round. The topographic 

 basis for the geological map is compiled by myself from various 

 sources, the data being supplied chiefly by Mr. Y. Saito, who 

 also ofiered me assistance in colouring the geologic elements 

 represented on the map. 



