110 MALLET, \1NBHYAK SEPvIES. 



excavated and removed many cubic miles of matter from the interior of 

 this land-locked gulf^ and yet have left intact the same strata at the en- 

 trances^ exposed to the full force of the open sea. It is necessary to sup- 

 pose that the sea in a state of comparative quiescence should have im- 

 comparably greater denuding power than the sea in its full force, acting 

 in both cases on the same rocks ; for if otherwise, the scarp at Kuttungee 

 must have been carried away long before the valley could have been ex- 

 cavated to its present dimensions. The sub-aerial theory is encountered 

 by no difficulty of this kind, and it at the same time accounts (according 

 to the now well known explanation of such phenomena) for the gorges 

 themselves, as well as the vaUey, during the formation of which 

 the system of drainage was clearly nearly the same as that which 

 exists at present. 



If the above conclusion be admitted, it follows that some fifty miles 

 of escarpment have been cut out by sub-aerial action; if this then 

 be capable of producing fifty miles, there seems no reason why it could not 

 produce 200 or 300 miles, or any of the escai-pments of the Vindhyan 



area. 



There is another argument in favor of the Bundair scarp being sub- 

 aerial. On glancing at the map, it will be seen that the rivers of the 

 Eewah plateau, after leaving the lower Bundah strata, flow for a few miles 

 across the upper Rewahs before falling over the Eewah escarpment. 

 From the edge of the latter, there is a slight inclination of the ground 

 to the south corresponding with the dip of the beds, which is, in all pro- 

 bability, the original inclination of deposition. "^ The result is that if the 

 present gorges were filled up, the rivers would have to flow up hill one or 

 two hundred feet from the boundary of the lower Bundairs to the edge of 

 the escarpment. The slope having existed ab initio could not have been 

 produced after the gorges were cut, by subterranean movements, nor can 

 the case be explained by a great lake occupying the Rewah plateau, as, 

 putting other considerations aside, it must necessarily have had as many 



* Mcmoivs, Vol. II. p. 57- 



( 110 ) 



