126 KUASI HILLS. 



sion in planes, different from the planes of bedding; along these cleavage 

 lines many discolorations have taken place, which give the rocks a 

 much more variegated aspect and parti-coloured look, than they would 

 otherwise have had. 



Close to the staging Bungalow at Mow-phlang, the same rocks are seen 

 cropping out on the hill-side and dipping here at an angle of 75° to 

 the South-East ; cleavage planes show here also, and give the rocks a 

 peculiar aspect. The prevailing direction of these planes is East and 

 West, and they are nearly vertical. 



The same general dip of the mass of these rocks (to the South-East), 



with many contortions and twistings, continues 



General dip to S. K _,.,_, . , 



all across the country East of the Boga-pani, and 



between Laikro and Uswirr Hill (see Map), forming on the surface an 



undulating but tolerably level outline, but showing in bold escarpments 



in some of the river gorges. This is well seen in the upper portion 



of the valley of the Wattam stream. A few dykes of the greenstone, 



which is so largely developed in the lower part of this valley, cut 



through the sandstones and appear on the surface. 



Stretching Northwards from Mow-phlang hill, the sandstones and 

 associated beds form the level ridge along which the path to Shillong 

 hill passes. For some distance from Mow-phlang the same intensely 

 altered character continues in these rocks, but more Northerly the beds 

 seem less changed (as about Sadow villagej, and, forming the top and 

 some distance down the flanks of Shillong hill, we find sandstones 

 scarcely indurated or altered at all. They are fully as soft as, and in 

 other respects very simDar to, the tertiary sandstones at Cherra. 



I had no opportunity of tracing out the boundary of these sandstones 

 here, or of examining their connection with the granite to the South of 

 the hilL 



But one of the most interesting facts in the history of these rocks is 

 well seen in several places nearer to Mow-phlang, and between that 



