MALLET, VINDHYAN SERIES. 97 



near Kotah in tlie northern escarpment 450, but further east the searp is 



generally only capped by one or two hundred. 



The Vindhyans near Hoshungabad have been considerably altered, 



and there is here no lithological difference by 

 Hoshungabad. i • i i -r. 



which the Rewah and Bundair sandstones can be 



distinguished from each other, and their separation can only be effected 

 by means of the lower Bundairs between. In the case of some outlying 

 hills, as those south-east of Hoshungabad, one cannot tell with certainty 

 which group the beds belong to. The thickness of the Bundair sand- 

 stone here is vastly greater than to the east, and has been estimated at 

 3,000 feet. 



It is not perfectly certain that this rock may not be the lower 

 sandstone. Near Kuttungi we have in ascending order — 



Feet. 

 Gunoorgurh shales ... ... ... ... ... 250 



Bundair limestone ... ... ... ... ... 200 



Shale ... ... ... ... ... ... 20 



Sandstone ... ... ... ... ... ... 200 



and at Hoshungabad — 



Feet. 

 Gunoorgurli shales ... ... ... ... ,., 390 



Bundair limestone ... ... ... ... ... no 



Shale ... ... .„ ... ... ... ... 30 



Sandstone ... ... ... ... ... ...3000 



The sandstone at Hoshungabad rests on the limestone as the lower Bundair 

 sandstone does at Kuttungi, and there is no reason why the lower sandstone 

 should not expand from 300 to 3,000 feet, when the Rewah does so from 

 500 to 6,000 ; but, on the other hand, it may thin out westwards as it 

 does eastwards. In the latter case the Sirboo shales must be extinct 

 also. The Hoshungabad rock then may be, firstly, the lower sandstone 

 greatly increased in thickness, in which case the examination of the 

 country farther north would probably reveal the higher members of the 



( 97 ) 



