ON THE GEOLOGY 



After passing JBograi the valley expands, and is covered by thick 

 alluvium, through which the dolomite occasionally crops out for a short 

 distance ; but with that exception, no rocks appeared above the surface, 

 until I arrived at Kshirarpani, where the hills are composed of stratified 

 quartz rock, sometimes granular, but more frequently compact, and con- 

 taining felspar, the strata are highly inclined, and sometimes perpen- 

 dicular, and as there is no other kind of rock, between Kshirarpani and 

 Tendukaira, except the isolated sandstone hill of Amjero : this brings 

 me back to the sand-stone and trap formation of the Sdgar district. 



To this catalogue may be added a very curious calcareous conglome- 

 rate, which is found in the beds of most rivers, whose sources, or whose 

 channels are in trap countries ; I have observed it in the bed of the Sonar 

 river, north of Reili, and in other places; it occurs also plentifully in 

 the Nermada river in various parts ; but the largest mass I have seen of it, 

 is near the Jansi Ghat. 



It is composed of rounded fragments of wacken, hasalt, sandstone, 

 quartz, and occasionally of other rocks, varying from the size of a pea, to 

 that of an ordinary grain of sand, cemented by calcareous matter, and 

 when the particles are fine, the rock in some respects resembles calcareous 

 sand-stone, and has suflicient cohesion for architectural purposes ; its stra- 

 tification is always horizontal, the coarse parts being lowest, and it re- 

 poses on the subjacent stratum, be the rock what it may, for it is evi- 

 dently the latest formation ; thus at Beragarh it may be seen in the high 

 banks of the river, reposing upon the primitive strata, and itself covered 

 only by alluvium to the depth of thirty feet. 



I have not met with a description of this rock by any author, and yet 

 it cannot be considered strictly local, for it is evidently a conglomerate, 



formed 



