CllAP. IV. 1.] METAMOEPIIIC ROCKS. 73 



23. On the Takhanmllays. — A very lai-ge and generally ricli Ijed 



stretches across part of the southern maroiii of 

 On the Patcliainullays. 



the Tholoor or southern section of these hillsj the 

 outline of which^ looking to the south, is mainly due to the strike of the 

 strata, and agrees with it very nearly. The bed descends into the lo^v 

 country near the saddle which divides the Essany hill (Trigonometrical- 

 station) from the main mass of the Patchamullays ; its course is then 

 lost sight of. 



24. A good sized bed of poor ore runs along the ridge of the 

 Ellumbaloor hill, a very conspicuous hill west of the Trichinopoly and 

 Madras road, between Volcondapuram and Torramungalum. The masses 

 exposed in the talus on the northern side of the hill are so much roiinded, 

 as to suggest their having undergone the grinding action of a heavy surf. 



25. Another large and generally rather rich bed occurs, crossing 

 several of the outlying hills and ridges south-east of the Patchamullays. 



It crosses the Sandapooram hill from west to east, thence proceeds 

 to the ridge between the Sandapooram valley and the Keela Kanavoy 

 Pass."^ At the village of that name the bed makes a sudden bend 

 to the south and runs up the north spur of the Chuttramanny hill. 



The relative positions of the strata of the southern part of the 

 Patchamullays are most obscure, owing to the great contortion and pro- 

 bably also fracture which they have undergone. It would therefore be 

 hazardous to venture on any speculation as to v/hich of the great iron 

 beds of the TullamuUay and KolymuUay series they may represent, though 

 an elaborate survey on a more extended scale would in all probability 

 establish some such connection. 



Between the northern flanks of the Patchamullays and Salem are 

 several other beds to be enumerated. 



* The Tamil word " Kanavoy or Kanava" signifies a pass between hills. 

 K ( 205 ) 



