20 BUNDELCUND. 



very similar to the massive limestone of Bisramgunj ; the siliceous 

 element is subordinate but the peculiar structure is the same. Moreover 

 the occurrence of green grains is common, perhaps characteristic, in the 

 Semri sandstone as far as the Dessaun. 



So far all seems plain enough and the relations of the several groups 

 well defined ; I may now introduce the obscure points, and preliminary 

 to this, I would point out the possible confusion in the Eastern portion 

 of the district, between this bottom rock and the Tirhowan limestone. 

 This case is made manifest by the section in the Boghin valley. Where- 

 Doubtful case in Bog- ever the Tirhowan limestone is seen well deve- 

 hia valIey - loped and by itself, as along the N. W. face of the 



Punwaree Spur, and on Pulkoa Hill, it is throughout quite free from 

 the sliceous impregnation or secretions which are on the other hand so 

 characteristic of the junction rock. In the Boghin valley the two 

 extremes seem inextricably blended. 



At Kalleenjur pure Vindhyan sandstone rests on a well defined surface 

 of granite. About 4 miles to the south, " at the entrance to the nar- 

 row gorge, on the left bank, about 150 feet over the stream, mas- 

 sive, yellowish-green jasper rocks overlay the granite, as often 

 homogenous as roughly brecciated. All up the gorge huge masses 

 of it are strewed, the river being in the state of a deep pool showing 

 no stream. After about a mile a small triangular valley opens 

 out, the river turning to the East and then round again. About 300 

 yards from the end of the gorge, where the jasper rock is still prominent, 

 there is limestone quite pure, perfectly bedded, quite horizontal or having 

 :i small slope to the S. East. Between these points there can be found 

 rvery grade of mixture, the limestone shows both strong bedded and 

 moderately so, is much traversed by chert, hyaline and calcedonic quartz 

 sometimes in very continuous strings of flat concretions and in concen- 

 tric geodes ; there is evidence both of the subsequent and of the cotempo- 

 laneous action of the silicifying process. The limestone is sometimes 



