CHAP. 5. | KADAPAH FORMATION.—KISTNAH BEDS. 219 
This set of quartzites, owing to their distinctiveness, thickness, 
E ESTNE and resemblance to those of the southern part of 
seem to answer to Yella- the Yellaeondas, would seem to answer to that 
D. series; but it is not improbable that they may 
correspond to the Porenaumla band of quartzites in the Cumbum 
series which thickens out tremendously to the southwards. There is 
no band of quartzite strata in the slates between the quartzite of the 
summit and those of the southern flank of the Byrenconda which might 
answer to the Porenaumla band, though at the same time it is clear 
that the Porenaumla beds have thinned out very much from what 
they were to the south, and may not occur at all on the flanks of the 
mountain referred to. It seems preferable to consider the Nemillygoondum 
beds as a distinct sub-group, and, therefore, representative of the 
Yellaconda beds. 
The Nemillygoondum beds are overlaid in the  Aukiveed or 
Poolalcherroo valley by a set of grey and purple 
Aukiveed slates. gon 
glazed and taleose slates; and similarly on the 
Nundyeunnama, where there are also overlying slates, and even quartzites 
topping all, which are very fine-grained, compact, and of bluish colors. 
These are, perhaps, more like the slate of commerce than any others 
among the KADAPAH slate groups. 
At Howhoblum,* strata relatively in the same horizon appear 
in force, and are of dark-blue and purple colors, breaking up in 
massive rudely wedge-shaped blocks. The pagoda is built on these, the 
slates of the ravine having been quarried out. into platforms on which 
the buildings were erected. The rock is coarse, and not finely 
cleavable, though it is very distinctly cleaved north-south with a high. 
dip to the eastward. The bedding is very clear, and is seen along the 
faces of the lofty headlands flanking the ravine. 
* Western flanks of the Nullamullays, behind Mootialpawd. 
2 H ( 249 ) 
