72 BUNDELCUND. 



diamond mines, was — "at about half way down the ghat there is a 

 mass of limestone, about twenty feet of regular beds, if fully seen there 

 would probably be more of it ; it is rather peculiar, the siliceous and 

 calcareous elements are more mixed than usual, weathering rough and 

 honey-combed, on fracture it is globular, large grains sometimes of chert 

 sometimes of the compact limestone with a chert nucleus, specks of pyrites 

 are frequent ; the interstices are either chert or ferruginous spar, some 

 emptv and drusy. Under this are about 50 feet of alternating, thin 

 beds of sandstone and shales, the former are pure and coarse though 

 intensely hardened and semi-vitrified and generally so with a green 

 tino-e ; they rest immediately on the red syenite." In the gorge of the 

 Boohin there is a similar rock, but its relation to the limestone is 

 different, — " semi-vitrified thin sandstones dipping at 50° to E. N. E. 

 while 10 feet to north and above, the strong limestone is quite horizon- 

 tal ;" again in the same valley — "■ massive, non-cherty limestone, over 

 it six to eio-ht feet of sintery jasper rock and of these thin semi-vitrified 

 sandstones, conforming perfectly to its irregular upper surface." It ap- 

 pears then to be a modifying influence in the vicinity of the massive, 

 cherty limestone, rather than any definite band of sandstone. 



Should these beds be the source of the boulders in the diamond con- 

 glomerate, it will necessitate a modification of my notions on the Semri 

 rocks — that they never extended beyond their present basin — but this 

 qualification has been made before. However, if the sandstone at 

 Adjeegurh be indeed Kymore, the entire outcrop of these Semri beds 

 jnust have been covered at the time of the deposition of the diamond 

 conglomerate, so that we should have to suppose a remnant had been 

 left beyond the reach of the Kymore denudation. Having seen what the 

 general relations of the diamond rock are, I did not delay to follow up 

 these conjectures. 



Besides the diggings described, the great majority are diluvial. 

 Against the sides of the outlying ledges there are deep deposits of 



