288 
THE CHIEF OF KIEH. 
At the north-eastern angle of the head of the bay, 
a little stream falls in, but there is no landing for 
boats on account of the surf, being completely open to 
the set from south-west. There is a market to which 
the natives of the island go in canoes. 
The chief of a village situated on the hill, which we 
have said was formerly joined in all probability to the 
and solid like rock of a single structure; as limestone. At a dis- 
tance of four indies witliin, it has pores of considerable size. The 
middle of the vein is of a more granulous structure, extremely rich 
in embedded crystals of basaltic hornblende. 
The contact of the vein with the amygdaloid basalt has operated a 
great change in the latter. The crystalline alters to a metamorphose 
character, so that the massive basalt has the appearance of conglo- 
merate ; pieces of it like slag being combined in different sizes by an 
earthy substance, coloured by oxide of iron of a fine texture. 
The heat of the basalt at the time of its appearance at the surface, 
must have been very great, since its effect is observable to a distance 
of more than six feet. Several veins run parallel to one another at 
short distances, which may be seen most fref^uently at the north and 
south parts of the island, and which may account for its saddle-back 
outline. 
On the western side, where the heat operated with the greatest 
intensity, not only has it destroyed the older deposits, hut separate 
veins are no longer traceable, — the columnar structure alters to a 
coarse granular character like kokolite, the crystallanic solid changes 
to a metamorphose granulous texture due to heat and algidity. 
If the whole surface of this island could he carefully examined, it 
would afford a fine field for observing the laws of operation in this 
laboratory of nature. 
The similarity of the geological character of the islands Fernando 
Po, Prince’s, St. Thomas’, Hollas, and Annobone, indicates a line of 
volcanic action in that direction with an offset at an angle of 90° at 
Ascension.— M. Roscher’s Geological Journal. 
