GEOLOGICAL TABLE. 



1 I 



been compiled by the late Mr. J. G. Medlicott, and the geological lines 

 that he laid down correspond closely to my own. As my opportunities 

 for careful examination have heen greatly in excess of those of any prede- 

 cesssor, I think it unnecessary to quote from them in order to contrast 

 the advances that have been made in our knowledge during the last 

 few years. 



The following scale of succession indicates the geological divisions in 



and adjoining the Rewah basin that are noticed or 

 Geological table. . 



described m the present memoir: — 



Surface deposits. 

 Deccan-trap, with Lametas. 

 Gondwana system. 



Supra-Barakars, not yet worked out. 

 Barakavs, with Karharbaris. 

 Talcbirs. 



Bijawars. 

 Metamorphics. 



My researches have principally been confined to the coal-measures, 

 and it is to them that the present memoir is almost entirely devoted, 

 as the succeeding rocks still require further investigation before their 

 position in the geological scale can be categorically affirmed. Under com- 

 pulsion, I could, of course, assign a place to them, but I should have an 

 uncomfortable consciousness that my decisions were open to correction. 



The evidence afforded by the plant-remains which are gradually being 

 collected, seems to point out a closer relation be- 



Evidence of closer re- 

 lationship between the tween the contiguous groups than was formerly 



allowed, and less stress must be laid on what were 



deemed lithological characteristics. 



Tbis, however, is an alternative admission, depending upon the relative 



value that we accord to lithological and palasontological evidence, 



■whether what were deemed mineral characteristics are to be subordinated 



to the supposed fixed horizon of certain fossil plants, or whether those 



plants are to have a wider range in time. In the Damuda and Wardha 



( 147 ) 



