OF THE DEPENDENT ISLES OF TAIWAN. 13 



two iiarj'ow iiecks of tlie aljracled second flow of Basalt, ami 

 forms a part of the geolo^i;'ical iinii, (littering from tliem only in 

 that here the interstratified sedinienlaries seem to Le wantinir. 

 The other features that strike the eyes of observers are firstly, 

 the lowness of its relief, the highest point being Ivô-don-san'\ 

 36 m. high, and secondly, a considerable development of Allnvial 

 accumulation of the shells and skeletons of low organisms, hence 

 the name of the island. Cliffs, however, can be seen in its northern 

 shore, exposing the youngest flow with its usual columnar ëtruciuve 

 at the water's edge. White sand}^ flats prevail throughout the rest 

 of the lonely island, especially towards the Bay of Hoko, and 

 the residual product of considerable thickness, derived from 

 the Basaltic decomiposition, covers the interior. 



One thing worthy of mentioniiig is a sporadic occurrence 

 of lapilli that had run aground on the east shore, probably 

 from one of the Indonesian volcanoes. The j^umiceous fragments, 

 worn and rounded, belong to a Hypersthene-andesite with a 

 highly pleochroie, rhombic augite, and this rock either massive 

 or pumiceous can be seen in no other 2'>ai"ts of the group. 



The islets, Tn^pai'-' and Chô-sho"^ or Bird Island, off the 

 east coast, seem to be geologically identical, representing the 

 erosion-relics of the Diluvial epoch. A luxuriant growth of coral 

 reefs fringes the latter, as well as the neighbouring islets, just 

 as in Haku-sha, 



KIPPAI ISLAND. 



Farther away in a northerly direction lies the islet of 

 Kippai^*, which is a low Basaltic flat, covered with half- 



