4 BUNDELCUND. 



In describing the section I might take as base line, the crystalline 



rocks ; they are seen throughout the entire distance 

 Base line. 



to be the underlying rock. But I prefer the 



equally continuous and more important, though less defined, horizon of 



the table-land sandstone. 



The beds composing this great Vindhyan series have, by latest 



' . . n ,, T7 . , writers, been divided into three groups; my 



Division of the Vinci- ■ J ° L J 



h y an - observations will lead to some remarks on this 



point, but my special object is to describe the rocks distinct from and 



subjacent to this series ; I take then as starting point, what may now 



at least be considered the lowest bed of the Vindhyans— a massive 



sandstone, the Tara sandstone of Mr. Carter and the Kymore sandstone 



of Mr. Oldham. It is continuous for the whole length of country I 



examined; in many places it is found resting horizontally on the 



crystalline rocks and is thence traceable directly under the shales of 



the middle or Rewah group. 



It may be seen on the map that between the two predominant 



colours, the pink, marking the crystallines, and 

 Lower formations. . 



the brown representing the Vindhyans, there are 



at intervals, along the N. E. and S. W. strike, narrow patches of two 

 other colours ; these mark two sets of stratified rocks of, it is believed, 

 distinct periods of formation. Each of these is rather complex in itself, 

 but it would be waste of time, without a much more accurate map 

 than at present exists, to attempt to express these subdivisions : indeed, 

 it is only some of them that show sufficient peculiarity to deserve this 

 distinction, and the sanction of fossil evidence is wanting in all ; but I 

 shall have to speak of them and will give to each as a convenient tem- 

 porary distinction, the name of some place where it can be well seen. 

 It is a more serious matter to give a name to the whole group. 



During the cold season of 1854-55, I had the opportunity of 

 observing, along a portion of the valleys of the Nerbudda and the 



