ARCH^AN AND PLUTONIC ROCKS. 43 



Its northern end forms the Cuttahullybode Trigonometrical 

 station hill, a low but sharply cut ridge. To the south of this it sinks 

 down somewhat and becomes less conspicuous. At Lokakaira it rises 

 again into a ridge about a hundred feet in height. The bedding is 

 obscure and dip doubtful. No contact with the granite was seen by 

 which to judge of their exact relations. From the Lokakaira hill, the 

 band continues to the south-south-west to beyond Boopsundrum and 

 away across the boundary into Mysore hidden under the red soil 

 spread. The band is six miles long and about a quarter of a mile 

 wide. 



An equally obscurely bedded but non-epidotic quartzite forms the 

 Yerra Pujari hill, two miles to the eastward. This appears to be con- 

 tinuous (unless faulted in Echelon), with two other irregular quartzite 

 hills to the south-east. On the southern extremity stands a little 

 hamlet, called Tippahalli, close to the left bank of the Janagahalli river. 

 The rock is lost sight of in the alluvial strip on the river's bank. 



What the age of these quartzites may be can only be specu- 

 lated on. No evidence to help towards a solution of the problem 

 could be found. 



On the maidan, between the Lokakaira hill and the Yerra Pujari 

 hill, I noticed many fragments of good grey pot- 

 stone lying about, but could see no source 

 whence they could be derived. They were not relics of a local 

 industry, and it is quite possible a bed from which they were derived 

 may be hidden under the local alluvium. 



On the south side of the granite hill lying north-west of Immady 

 Samudra, two miles west of Hurlihal (Hoorlyhall), 



Magnetic iron. . . , 



is a small development 01 magnetic iron, not of 

 sufficient importance to be economically important in a place so near 

 to the vast haematite stores of the Sandur hills. 



Six-and-half miles north by 5 east of Hurlihal, in a granite tract 

 Shiddagal iron-smett- abounding in fine tors, stands Shiddagal, a fine 

 mg works. p a j e g rev r ock crowned by a small fort. Shid- 



dagal is the site of an active iron-smelting industry. The ore worked 



( 43 ) 



