BUNDELCUND. 



show hardly any chemical alteration but are much rolled about. The 

 notion of the unity of the series could scarcely be suggested by the 

 Nerbudda sections alone; it was never improbable that closer examin- 

 ation might necessitate a change. Simply the evidence, at that time, did 

 not warrant a further assertion. 



There are many strong points of lithological resemblance, and analogies 

 of gisement between the beds I have just spoken 

 of as occurring in the Sone valley about Burdhee 

 and the uppermost of the subjacent groups along the north face of the 

 table land, but in this latter field there is ample evidence of their dis- 

 tinctness from the Vindhyans proper : on this account, and pending the 

 complete identification with the Sone valley beds, I shall not call them 

 sub-Kymore but by some local name. The Sernri formation, is appro- 

 priate as, in the valley through which this river flows for the latter part 

 of its course, the most typical members of the series are well exposed. 

 The low r er rocks are much developed in the Bija- 

 ljaw wur district; I shall therefore call them by that 



name these also have some distant analogies with the rocks of the hills 

 S. of Sone ; prominently, the great similarity of the trap rocks occurring in 

 them. The subdivisions of the Semri group are, 

 roups ' in descending order. 



1. — Tirhowan limestone. 

 2. — Pulkoa schists. 

 3. — Dulchipore sandstones. 

 4. — Semri shales and limestone. 

 5. — Semri sandstone. 

 These subdivisions of the Semri formation are not strictly successive, 

 some of them are equivalent groups, apparently replacing each pother 

 at different parts of the field. 



The Bijawur formation is too confused to allow of the safe or ready 

 determination of subdivisions. 



