KOÏO : NOTES ON THE GEOLOGY 



have a qiiasi-deseii, and not an oasis, amidst tlic green island- 

 world of South-eastern Asin. 



Forty of Mr. Tada's specimens of rocks, on wliicli I base 

 my petrographical descriptions in the present paper, were collect- 

 ed from the following islands : — 



1) Hoko island, the largest of the whole group. 



2) Haku-sha-to,'^ b'^"o ^loi'th to the foregoing. 

 o) Tmpai-sho. 



4) Clio-sho, the eastern neighbour of Hakusha-to. 

 Ô) Kippai (Bird Island of English Admirality chart), the 

 northernmost of the whole group. 



6) Gi-o-to (Fisher Island), west of Ilôko-tù. 



7) Hattô-slio, lying farther to the south of the main group. 

 In addition to these, I have received lately a few specimens 



collected by Mr. Y. 8aito. 



1) The worilg 'to' and 's/w' recurs frequently in tlie geographical name of Taiwan, the 

 former signifying an island, the hitler an islet or rock. 



