12 KOÏÔ : NOTES ox THE GEOLOGY 



Between A-kaii and Ki-sei-ktiku'', the easternmost point of 

 the island, a white sandy beach bounds the south shore. 



All along the coast from l\i-sci-kaka to PIoku-ryo'-\ coral 

 reefs limit the eastern shore, and the detritals derived from them 

 form the beach-flat. It is a noteworthy fact that on the north side 

 the coast is very deeply indented in the norlh-south direction, and 

 the lowland, partly marshy, is covered likewise with coral sand. 

 I may here mention an occurrence of coal which was once con- 

 sidered to be a very important natural resource of the island, 

 though afterwards it turned out to be almost worthless and unworthy 

 of public attention. At one of the points, called Koto or dragon 

 head, that stretches out northwards, a butte of Basalt, 22 m. 

 high, elevates itself from the shore, and at its northern foot 

 a seam of lignite, Ö feet thick, crops out with a sandy rock be- 

 tween the first and second flows, corresponding to the Area /one 

 in Gio-o Island, already referred to. The exposure is meagre and 

 soon disappears under the rubbish to be seen no more. This 

 mineral combustible is but imperfectly incarbonized, and the 

 woody structure is said to be yet w^ell preserved. 



From Sei-kei-'^ through KO-tei'*, and Sha-ko'^ as far west as 

 to the oft-mentioned Bako, along the north coast, the two upper 

 flows are the sole rocks that can be seen, being covered with 

 an incoherent brownish, coarse and craggy earth. 



HAKU-SHA ISLAND. 



Haku-sha-to,'^^ or the white sand island is bodily connected 

 with Hoko through the intervening islet of Chii-don'^, at the 



1) WilEn 2) ^if- 8) m% 4) jfig: 5) WM 6) âîJJ 



