304 GEOLOGICAL REL*\.TIONS OP THE ROCK SYSTEMS 



the Sane Valley, of a group of beds, to which as coming under those beds 

 which constitute the very marked escarpment of the Kymore range, he 

 . proposed to apply the name of Sub-Kymore. Our knowledge of this 

 group as it occurs in the typical locality is still, I regret exceedingly to 

 say, in the state in which Mr. Medlicott left it, (the state of the country 

 having prevented our return to the district), but the characters, position, 

 and general arrangement of a marked series of beds which extend along 

 the northern face of the table lands of Bundelcund and which, it is highly 

 probable, there represent the " Sub-Kymore" rocks of the Sone Valley, 

 are fully given in his paper in the present volume. These rocks as yet 

 have yielded no fossils. 



Vindhyan Rocks. — Towards the close of the year 1854, it was de- 

 cided that an examination of the valley of the Nerbudda should be under- 

 taken. And for this purpose my first assistant Mr. Jos. G. Medlicott 

 was deputed. The aid of his brother, Mr. Henry B. Medlicott was also 

 granted. Starting from Mirzapore, the latter made a traverse of the 

 Rewah country, and crossing the river Sone, passed south to the Sin- 

 growlie coal-field: the former proceeded to Jubbulpore, and thence passed 

 westwards along the Nerbudda valley. From both of these zealous assist- 

 ants I received statements of their results in the following year (1855); 

 and both agreed in pointing out the essential distinctions which appeared 

 to characterize the great thickness of sandstones, shales, &c, forming the 

 country of Rewah and Bundelcund; and to separate these rocks, &c, en- 

 tirely from the sandstones associated with the coal in Bengal, or in the 

 Nerbudda district. To this great group, however, they did not attach 

 any definite name, speaking of it as " the sandstone," or " the Bundel- 

 cund table-land sandstone." I visited that district myself in the beginning 

 of 1856, and seeing the justice of the separation already made by the 

 brothers Medlicott, I thought it desirable to give to this very important 

 group of rocks a definite name ; and to indicate the sub-divisions into 

 which it appeared possible to classify it. In a very brief summary, there- 

 fore, of the results arrived at in the examination of the Central India rocks, 



