MALLET^ VINDIIYAN SERIES. 



Western extension. 



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With'^regard to the detailed classification of the 

 Vindhyans in their western ex- 

 tension, our infonnation is as 

 yet imperfect. In the Neemnch country, however, 

 there are three great bands of sandstone separated 

 by two great bands of shale, the uppermost of 

 which is divided by a strong bed of limestone. 

 There can be scarcely a doubt that the lowest 

 sandstone represents the Kymore, which is thus 

 present at the extreme eastern and extreme western 

 limits of the formation. 



C6J. — Uewah Group. 

 The junction of the Kymores with the Rewahs 



Lower Rewah tcv is sharply marked. North-west 

 the east. ^f ^^^^^ j^ ^^ ^^ ^^^^ 



forms the boundary between them for some distance, 

 and here good sections are obtainable, showing the 

 lower part of the shale as well as the junction with 

 the sandstone. Thus west of Jurkour about 20 

 feet of hard flaggy green shales are covered by 

 earthy red shale, and rest on not very fine sand- 

 stone (Kymore) staiaed reddish brown by iron, and 

 containing brown and greenish-brown ferruginous 

 clay galls. The junction is perfectly sharp. No 

 layers of sandstone occur in the shales. Again, 

 2^ miles north of Jurkour in the same stream, a 

 similar section is exposed, the shale beds for the 

 bottom foot or so undulating with the uneven sur- 

 face of the sandstone, and above perfectly even. In 

 a stream south-west of Adesar hill both rocks are 



