072 Essay, Gc. 
manner similar to the fragments already dë 
tached: many of these are regularly tabular. 
The extent and boldness of this pile forms an 
interesting spectacle, of which it is difficult by 
description alone to give an adequate representa- 
tion ; it explains at the same time the constitu- 
tion of the other perpendicular piles which are 
ridges, attract the attention of the mineralogist, 
The Basaltes at the foot of this pile has a si- 
milar form, but the angles which project from 
the soil are blunt and rounded by attrition, 
shewing, as it were, the effect of substances 
which have been carried over them by a current, 
On the fracture a grey or whitish color pre- 
dominates, in consequence of the abundance of 
particles of feldspar and quartz, whicb enter 
* into its composition; through these are dispers- 
ed numerous crystals of schorl, hornblende and 
some times Augit. These also appear on the 
surface, which more than other Basaltes of this 
Island, inclines to a white color. Observed at a 
distance, this hill may easily be mistaken for an 
assemblage of calcareous rock. 
_ The northern side of the western pile consti- 
tuting the Gunung Lawet is much more uni- 
form ; it rises nearly perpendicularly, wich very 
slight inclination, and no distinct separation into 
portions or fragments is perceptible: ic exhibits 
the appearance ofa stupendous wall of whitish 
colour, variegated only by a few excavations, 
apparently of later date, and en no means nume- 
Tous) ingen lines, : 
y E. Cat. No. 46. 
