MINERALOGICAL DESCRIPTION OF THE ISLAND OF BANKA. 4U 
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nung Gdnten, which has two appendages, one, Gunung S&piding to 
the north, the other Gunung Kruwis to the south, from the latter two 
smaller hills Gunuug Ruba and Gunung Mdnek, extend towards the 
western extremity of this peninsula, and in some degree connect 
this ridge, with the hills above mentioned, Gunung Pari-pari and 
Gunung Penyabung. The Gunung Pdssukkdn deviates from this 
irregular transverse ridge and runs off iu the north towards the 
point Tarijong Pamudja, 
The general appearance of these hills has nothing particular: the 
form of Gunung Ganten is irregularly conical and somewhat eleva¬ 
ted, the others are extended and low: they are all completely cover¬ 
ed with vegetation. 
The country at the foot of these hills is more elevated than the 
district towards the south, and no ore of tin has hitherto been disco¬ 
vered in it; as the ground declines towards Seka, Mampang, Dshebu 
point Pamudja, and other situations near the northern confines of 
the island, the strata containing the ore of this metal are again 
found at the usual distance below the surface. 
The remarks, to which my route through this part of the island 
directed, appeared to me of importance in its Geological History. 
The objects of mineralogy which I had hitherto met with, were 
those of the lower or alluvial district at Kampak, at Jebus, on the 
road to district of the Lower and Upper-furnace, at the aqueducts 
of the mines and in the strata which had been exposed by the pro¬ 
cess of mining. The latter were evidently of a mixed nature, and 
consisted of detached portions of larger rocks of different kinds, re¬ 
moved out of their natural situation, and exhibiting unequivocal 
marks of having been carried along and subjected to attrition by a 
current of water, On my track from the mines of Sunnieto Mam¬ 
pang, I was gratified, for the first time, by the discovery of a rock of 
granite in its original situation, in the midst of a forest and almost 
concealed by a thick coast of mass. This directed my attention to 
the hill Ganten, with its appendages, which was near on the road. 
I found that the rock which forms the basis of this hill is of the 
same kind. 
