APPENDIX. 
Mr. R. B. Foote's Notes on the Geology of the Country between the towns 
of Juggiapett and Bellamkonta in the Kistnah District. 
The tract of land lymg between the two towns above named is one 
of very considerable geological interest, including, as it does, the extreme 
north-east angle of the great area occupied by the KADAPA and 
KARNUL rock series. The central part of this tract occupies the penin- 
sula formed by the Kistnah river (which makes a sharp bend to the north- 
north-east, and then turns with equal suddenness to the south) just 
before it finally emerges into the plains a little above the head of 
its delta. For convenience and brevity I shall speak of this as the 
Chintapilly peninsula. 
Two lines of rocky hills run with a few breaks through the entire 
length of this area, their courses being very nearly parallel in a direc- 
tion from north-north-east to south-south-west. Besides these two lines 
of hills there are numerous outlying hills arranged in a position some- 
what parallel to those ridges. 
The bottom-rock occurring throughout this area is a granitoid, or 
syenitoid, gneiss, of the * blotchy’ variety, highly 
Bottom rocks: Gneiss: : MUS 
Older metamorphic metamorphic and generally porphyritic in struc- 
series. ۲ : 
ture with very great predominance of felspar and 
quartz. The signs of bedding are rarely to be found. 
This gneiss 1s traversed in various directions by dykes of green- 
eee stone, which form in many cases strongly marked 
ridges, having been much less affected by atmos- 
pherie erosion than the coarsely crystalline rocks of the metamorphic 
series. The great majority of these dykes belong to one or other of 
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