NERBUDDA DISTRICT. 105 



He also mentions the presence of recent conglomerate in the Nerbudda. 

 In this excellent paper the author gives good descriptions of many of the 

 varieties of rock which he found along this very varied section. 



Dr. Spilsbury, who has done so much for the palaeontology of Central 

 India, published also two papers on the Geology 



1834. Spilsbury. 



of parts of the distnct.( a) He states his con- 

 viction that the bone-bearing sandstone and conglomerate form a wide 

 spread deposit, and he considers as portions of this, beds seen at several 

 localities far removed from one another, as at Birman Ghat, in the Dudi 

 Nala near Gurrurwarra, and in the Nerbudda bank at Hosungabad. 



He observed that the coarse conglomerates seen at the base of the 

 hills near Futtehpur, pass upwards into the sandstone which is interstrati- 

 fied with calcareous bands. He describes, as he passes southwards, many 

 varieties of sandstone and a fine trap-dyke seen in the Deinwa River. 

 From these sandstones of the glens, he distinguishes, as to mineral cha- 

 racter, the massive beds of the Mahadeva hills. 



In the second of the papers(i) alluded to, this author gives an account 

 of his journey to Umurkuntuc. He points out how the old crystalline 

 rocks between Mandla and Umurkuntuc occupy the low grounds towards 

 the south-west, and are everywhere covered up towards the north-west, 

 by Basalt and the " inter-trappean" deposits. — Also how he finds on 

 descending from Umurkuntuc towards Sohagpoor, sandstone which on 

 the plain below is associated with carboniferous beds, and is covered on 

 all the heights, by traps with the inter-trappean shelly chert, and shelly 

 limestone bands ; and - how these bands may be traced along the base 

 and lower slopes of the hills ; and he gives a list of localities where 

 fossils abound in these beds. 



He also concludes that coal crops out somewhere in the vicinity, 

 from finding a fragment of this mineral in the shingle of the Johilla, 

 where he crossed this stream. 



(a) Jour. As. Soc. Bengal, Vol. Ill, p. 388.— f&) Ibid, Vol. IX, p. 889. 



B 



