GEOLOGY OF THE COUNTRY. 85 



London clay formation, and other similar formations both in Europe and 

 Asia. 



Whatever might have been the agency, or the succession of agencies, 

 concerned in forming the alluvium of Guzerat, it is abundantly obvious that 

 it could not have been gradually formed by the debris of the rocks in the 

 mountainous portions of the district washed down by rivers, nullahs, &c. 

 From this source a portion of it might, no doubt, be derived. By its ex- 

 tent, its depth, the high situation which this deposit frequently occupies, 

 (as at Sirpur, just mentioned) we may learn that it must have been the 

 result of some more energetic cause. 



The e%tent of the conglomerate formation at Salassinur, I had no op- 

 portunity of ascertaining, nor do I know its relative position with regard 

 to other rocks — it probably, however, rests on the granite which underlies 

 the alluvium — might not these conglomerates be cotemporaneons with the 

 lower beds of the alluvial deposit, modified by some local cause, affording 

 a cementing medium to the loose particle, connecting them together and 

 thus forming a nucleus round which others would collect ? This is a mere 

 conjecture. 



The hills at Pandua, were no doubt, formed by the outgoings of the 

 underlying granite — a granite which appeared to me to belong to a very an- 

 cient variety — an older variety indeed than any which we shall have occa- 

 sion to mention in the sequel of this paper. The crystalline nature of its com- 

 ponent parts — the transparency of its quartz^ — the whole appearance of the 

 rock, and the situation which it occupied, led me to draw this conclusion. 



From Bhpur our march lay through a hilly and jungly country to 

 a small village called Dewdn, six miles distant, in a N. East direction 



Y from 



