g BUNDELCUND. 



blishment of such an instance as the present would not be the least 

 interesting result of this paper. 



Between the Semri and Bijawur formations there is less room for 

 hesitation, although even here there are some cases of apparently con- 

 formable overlap of the Semri sandstone on beds of the lower group. 

 Generally however their strata are strongly contrasted and the litholo- 

 gical types are always so: the Bijawur are throughout more or less 

 ferruginous, and abounding in trap, some I think contemporaneous. 



Neither of these groups are more advanced 

 Mineralogical condi- ° 



tion. towards crystalline metamorphism than are the 



Vindhyans themselves. 



The relation of the granite to these lowest stratified rocks is obscure 



and puzzling; but in no case is it one of cause and 



effect as regards disturbance and mineral alteration. 



The most northerly point attained by the Kymore sandstone is at 



Bheeta, a few miles to S. W. of Allahabad; there 

 Jumna section. 



is a pillar-like mass of rock standing in the mid- 

 dle of the Jumna, and on the south bank of the river there is a good 

 section of some hundred feet in length — massive beds, with occasional 

 thin discontinuous partings of sandy shale — no perceptible dip. The 

 stone is white or salmon coloured, fine grained, very hard, purely 

 siliceous, sometimes streaked and speckled by iron stains : on the sur- 

 face above the banks it weathers into low (50 feet) ruin-like hummocks 

 of bare rocks ; in S. W. direction these become more numerous and 

 larger, thus merging into a continuous ridge with a bold scarp tp the N., 

 and on the south forming the lower step of the Vindhyan plateau, which 

 slopes gently to the Tons river, near the base of the second or Rewah table- 

 land. After a distance of about 40 miles the character of the ground in 

 front of the outer scarp changes, the direction of scarp becoming more 

 southerly ; it becomes undulating and outliers are frequent. Towards 

 Tirhowan these are so massive and continuous as to look like a distinct 



