302 KING: KADAPAH AND KARNUL FORMATIONS. 
and extending some distance across the Kistnah river on both sides. No 
difference of importance is to be observed in the successive formations 
traversed from west to east, from the east edge of the Palnád limestone- 
spread (7!) till the right bank of the Kistnah is reached, unless it be that 
the quartzite (No. 2) contains a gritty bed near the top which has been 
broken up in search of diamonds on the flanks of a hill about three quarters 
of a mile north of the line of section. At a small distance south of the 
line of section this bed and the following quartzite beds Nos. 3 and 4 thin 
out rapidly and no longer stand out as ridges; south of the Kistnah, near . 
Kollur, however, they reappear and reassume their ridgy character. On the 
right bank of the river, between the village of Pulichinta and the base 
of the high Pulichinta ridge, a limestone (/?) appears among the slates of 
band (f). The limestone is of a greenish grey, and near its upper 
surface much intercalated with argillaceous lamine, which become so 
numerous that the limestone is lost in slates. 
This limestone is not seen north or south of the hne of section for 
any distance owing to surface -accumulations. Overlyinge the limestone 
comes a thick series of slates, chiefly of chocolate color, separated by 
a quartzite bed corresponding, if the sequence be a true index of 
position, with No. 6 of Section I. Regarding this limestone (/2) as a 
merely local deposit, I have in the section indicated the over and under- 
lying slates by the letters f and /1, and the slates overlying quartzite 
No. 6 by the letter 2. 
Capping these slates comes the thickest quartzite formation of this 
region, a formation probably not less than 300 feet thick made up of 
pale drab, pinkish and whitish beds. This quartzite forms the backbone 
of the great Pulichinta ridges, and slopes down the entire east flank of the 
ridge till cut off by a fault by which the slate bed (f) is brought up 
to the surface on the eastern side of the valley lying between the ridge 
and the Cuchillabode, a high and peaked hill about a mile to the east of 
the ridge. About half a mile south of the point at which the line of 
( 302 ) 
