CHAP. 2.] ECONOMIO RESOURCES. 273 
In both regions, the ore, sulphide of lead, occurs in silicio- 
calcareous beds of the same slate series, viz., the Cumbums of the Nulla- 
mullay group; but the more favorable metalliferous regions are in the 
. Jungumrajpilly region. 
The Gazulpully or Buswapoor mines are in the wide valley, on 
the western flanks of the Nullamullays, where 
crossed by the Nundycunnama pass, at about 
two miles north of the fifth mile on the high road from Buswapoor or 
Gazulpully, which villages are on the edge of the Khoond-air valley. 
Buswapoor mines. 
There is a broad and deep gully or quarry, which has been cut in the silicio- 
caleareous beds occurring among the slates here, and which was evidently 
the old Mogul excavation. No traces of lead were seen in this trench, 
which was quarried along the bedding. Some short distance east of this, 
on low undulating ground of thinner flags and slates, a series of holes had 
been sunk in the strata, latterly by Mr. Wall’s workmen, possibly on the 
site of old pits which had been filled up. However, the debris from these 
pits is still alongside the holes, and a good part of it is sulphate of 
baryta, which is full of strings of granular and massive galena. The 
last explorers had evidently taken away all the best specimens. The 
lead seams evidently to occur here in the same way as at Jungumrajpilly, 
viz., in the north-north-east, south-south-west fissures of jointing. 
Jungumrajpilly is on the pass of that name, across the Nulla- 
Ae: mullays, some miles north of the road from 
mei Cuddapah to Bode The old and now deserted 
lead workings are at the south end and east side of a low ridge, 
just north-north-east of the village. The pits or galleries have been 
excavated between beds of dark grey silicious limestone, which is 
impregnated with strings of white and dull blue quartz. Granular 
sulphide of lead is disseminated in very small quantities through the 
blue quartz, In the white quartz are faint traces of copper. The 
exposed surfaces of white quartz are pitted all over with impressions of 
2 L ( 273 ) 
