316 GEOLOGICAL RELATIONS OF THE ROCK SYSTEMS * 



Lameta from the Lameta Ghat, near Jubbulpur, where the rocks are 

 well seen. 



With regard to the classification of the upper tertiary and recent 

 deposits, I shall not at present add any thing. The area described is 

 too limited to admit of any general discussion of the question. 



In the foregoing statements I have endeavoured to give as succinctly 

 as was consistent with clearness, the several steps by which my col- 

 leagues and myself, while engaged in the Geological Survey of India, 

 have, as it were, groped our way amidst the uncertainty and darkness 

 which surrounded the formations with which we had to deal, and how, by 

 successive steps, we have been able to reduce these to some order 

 and system. 



Having thus arrived at a knowledge of the general succession of the 

 rock-masses, it remains now to give an equally brief summary of the 

 fossil evidence which has been accumulated up to this time, and to shew 

 how far it may suffice as a foundation on which to build any satisfactory 

 conclusions regarding the geological age of the various groups or series 

 of rock-masses enumerated above. 



In this review of the whole series, we may, at present, omit altogether 

 the Sub-Kymore group and the Vindhyan system, since they have 

 hitherto proved unfossiliferous. On the other hand, as having little 

 in common with the rocks below them and as being, as I think, widely 

 separated from them, we may also reserve the consideration of the 

 Mahadeva group. 



We have, therefore, the Talcheer, the Damuda, upper Damuda and 

 Rajmahal, groups remaining, and shall briefly notice their relations. 



From all these, in varying number and abundance, fossil remains of 

 plants have been obtained. From none of them, (with the exception of 

 the important discovery within the last few days by Mr. Wm. T. 



