GEOLOGY OP THE COUNTRY. 87 



boundary of the great primitive district which forms a large portion of Cen- 

 tral India, and which traverses from N. to S. the whole of the peninsula, 

 being connected, indeed, at one point or another, with all the great primi- 

 tive formations which exist in Hindustan. The rocks which as yet we 

 have seen might be termed, perhaps by some, " transition." In the pre- 

 sent instance I can see no use for this distinction. From the rocks which 

 surround us to the more decidedly primitive ones we can trace a regular 

 gradation. They pass into — and in many instances alternate with — each 

 other. In short every consideration points them all out as belonging to 

 one grand series of rock formation as the result of one general cause. 



In the deposition of a formation so extensive, a long period of time 

 would doubtless be consumed, and though the precise period of their depo- 

 sition might be different in different instances — one being formed when 

 the forming cause, whatever that might be, commenced to operate, and 

 another when it was about to cease, — this, though it might modify the in- 

 ternal structure and appearance of the different rocks composing this for- 

 mation would not justify us in including them under different classes.* 



In the district of Kiitcli, towards the N. W. I believe, from specimens 

 which I have seen, that a series of rocks of a newer formation than lias, 

 and from that upwards, may be observed. I drew this conclusion from the 

 very numerous fossil organic remains which many of these specimens ex- 

 hibited. These remains were shells belonging to varieties which have 

 been ascertained to be characteristic of the newer classes of rocks in 



other 



* 



* I am uncertain with regard to the nature of tlie rocks at B'lrpur. As I did not sec tliese 

 in situ, I cannot say decidedly in what class they ought to be included — they, perhaps, belong to a 

 newer and overlying variety. 



