Memoranda on the Geology of Sikkim, 521 



ent declinations in every valley. Quartz stratified is also found 

 in a nearly perpendicular position on the small Rungeet, as 

 is mica slate on the great Rungeet at the north end of the 

 Tukvar spur, and I believe also on the small Rungeet, at the 

 spot called the Bhoot Bungalow by the Lepchas, not far 

 above the junction of the two rivers of that name. 



On Chakoong, sandstone occurs with other amorphous se- 

 condary stones, and the same, according to my recollection, is 

 true of Sungreeong and Rinchanpoom. We met with sandstone 

 on the Subbok river and on the Rektee, with different other 

 clay rocks. Some of the sandstones we saw on the Subbok 

 and Munna contain pebbles imbedded in them, or disseminated 

 through them. On the Teesta and great Rungeet we found 

 basalt and porphyry, and also actinolite in rolled masses. 

 Traces of iron are to be met with in every valley, and this 

 mineral impregnates numerous springs in many of the hills, 

 as for instance at the old cane-bridge on the Bellassun, at the 

 end of Goke on the great Rungeet, where there is also a chaly- 

 beate spring reckoned medicinal by the Lepchas and Booteeas, 

 and employed, heated, by them in the cure of sores ; gene- 

 rally indeed the springs by the rivers bear marks of being 

 chalybeate. A hot spring is mentioned in Mr. Smithes Dar- 

 jeeling Guide, as occurring higher up the Rungeet in the 

 direction of Paymiontsu, which is used for baths by the na- 

 tives in cutaneous and other disorders. 



On the great Rungeet, where a second spur from the Tuk- 

 ver ridge in travelling eastward abuts on the river, I picked 

 up a fossil bone about the size of a deer's leg bone, (it is now 

 in Dr. CampbelFs possession) ; it seemed quite silicified, and 

 was a drift bone, so that it could not be guessed from whence it 

 had come, and though I searched diligently for an hour or 

 two in the same place, I could find no fellow to the specimen ; 

 but the spot ought to be looked over anew, after the annual 

 floods have taken off, and would perhaps yield some reward 

 for the labour of examination. 



S X 



