BUNDELCUND. G5 



bed and not to any shuliness in those just over it; this strong bed 

 rests without any transiton on thin grits and shales. All these rocks are 

 undistinguishable from the Vindhyans of llevvah or Bundair." 



The Gwalior rocks seem then to be isolated by the continuation of the 

 Vindhyans. The country is open and the sections seem to be favorable, 

 so that the examination of them is altogether most tempting. The com- 

 parison, in such close proximity, of series whose general aspect is so 

 similar, may be an important clue to the removal of sundry manifest 

 stumbling blocks in Indian Geology. 



Any thing I have to say of the age of the Vindhyans, is relative, and. 



a e ,i. T7-- ju of that but little — they are manifestly younger 



Age of the Vindhyan - J <> ° 



S rou P- than any of the rocks I have noticed except the 



superficial trap : and subsequent to any great dislocation that may have 

 affected this area. Lithologically, however, there is nothing recent 

 about them — although perfectly undisturbed and apparently removed 

 from the commonly received causes of induration and mineralization they 

 are almost in the lithological condition of clay slate and its associates ; 

 the massive sandstones show this less, but ill the thinner beds and the 

 rocks I have called shales it is very marked. 



Note on the Diamond Mines. — It is in connection with the Vindhyans 

 that I must notice the Diamond mines of Punna. The position of these 

 deposits is a question of some little interest ; it appears to be taken for 

 granted that they must be cotemporaneous all over the Peninsula, and 

 rather distant relationships have been established on the strength of this 

 notion, but considering the secondary nature of their formation the 

 hypothesis is necessarily precarious. 



The only detailed account of this district that I am acquainted with is 



the one by Captain Franklin, in the eighteenth 

 Franklin's memoir. 



volume of the Asiatic Researches, for 1833. The 



K 



