It) BTJNDELCUND. 



strong, having massive conglomerate beds at bottom. The extinction of 



the Semri limestone is there caused by the over- 

 Dulchipore. 



lap of this group on to the Semri sandstone, 



the conglomerate is very prominent on the Dessaun — again at Amoda, 



and it is the last and only member of the Semri formation seen at Putna. 



The two upper groups present a somewhat similar arrangement; the 



Pulkoa schists do not show decidedly till the Kane, 

 Pulkoa schists. 



and continue in force and characteristic to beyond 



Tirhowan limestone. t ] ie D esS aun. The Tirhowan limestone is perhaps 

 the most persistent of all, though presenting the greatest irregularities ; it 

 is found near Cheboo within a few miles of the Jumna, and to the south- 

 west, it extends to the valley of the Chohee at Sagowni ; its disappearance 

 here seems entirely due to its being covered over. 



The normal order of these several groups is not doubtful. It is very 



„ „ .. well seen at Pulkoa, a village at foot of an out- 



Pulkoa section. ' ° 



lying hill near the mouth of the Semri. This hill 

 is capped by some 150 feet of Kymore sandstone 

 Limestone : resting conformably on typical Tirhowan limestone, 



Schists. about 200 feet, and at base are the Pulkoa schists, 



also quite conformable — the character of this rock is peculiar and con- 

 stant: very fine, grey, weathering, or bleaching white, generally thinly 

 laminated, having a foliated aspect, often intensely hard almost approach- 

 ing to jaspidification — generally breaking into angular subcubical pieces. 

 In the rivers close by, the underlying members are well seen, as in the 

 Kane just below the junction of the Semri ; "at 

 top is the dark bluish-grey chert-like shale, in thin 

 ( 1 to 6 inch) perfectly defined beds. Under about two feet of this is a 3 

 feet bed of a very nondescript rock, more like a vein stone than a. 

 regular bedded rock; in spots it resembles an agglomeration of thin 

 contorted layers, in others concretionary lumps — irregular cavities are 

 frequent, either empty, or filled by cherty silex ; under this are thin 



