Chap. 1Y. 1.] metamoiumuc rocks. 59 



sight of, but may perliaps be again recognized at a distance of 12 miles 

 on the nortli bank of the Punniar river, in a large bed of fine mag- 

 netic iron, occurring about a mile east of Monda- 

 Mondacooly bed. 



cooly. Its course to the north-east by north is, at 



a distance of about one-half or three-fourths of a mile from the river, 

 obscured by overlying soil, but there can be no doubt the bed mighL be 

 discovered again further north, and also that the great gaps between 

 Manoor and Vulshay, and again between Vulshay and Mondacooly, might 

 be, in great measure, if not entirely, filled up, if time could be spared to 

 follow up the out-crops through the pathless and often almost impenetra- 

 ble jungle covering the flanks of the Tainanda- and Carapavidy-Mullays. 

 This would not, however, be a very profitable task ; it would require several 

 days^ work in very unhealthy forests, and there can be little doubt of 

 the continuation of the iron beds, for all along the eastern side of the 

 Tainandamullay, we find the continuation of a great thickness of talcose 

 gneiss beds, which stretch away past Cottaputty and Vyroonaicken- 

 putty to the banks of the Punniar, cross that river, and pass beyond the 

 limits of the map. A few remarks on the position occupied by this 

 Godumullay series^ on and around the Godumullay itself, may not be 

 uninteresting. 



The Godumullay is a very fine bold mass, rising between 1,200 and 



1,500 feet or more above the centre of the great 

 Godumullay hills. 



Salem and Ahtoor valley, and forming part of the 



water-shed between the hydrological basins of the Cauvery on the west 



and the Vellaur on the east of pass. The Godumullay is about 4 miles 



long from west to east, which is very nearly the direction of the axial 



ridge of the mass ; its extreme width at the eastern end, where broadest, 



is about 3 miles, including the north and south spurs of the hill. 



The Spanish name of Sierra (a saw) would be particularly applicable to 



describe the side view of the ridge, especially when seen from the south. 



This serrated ridge consists of the chief bed of magnetic iron which runs 



(281) 



