2^8 On the Sevdlic Hills. [Ocx. 



Testacea. 



Bivalve^ Imperfect, but resembling Urdo. Univalve : a cast 



resembling that of the Paludina of the present 

 fresh-water.* 



Besides these more easily determinable remains, there have been 

 found a number of incisor teeth, which I cannot assign to any genus ; 

 also quantities of bones, in fragments, and portions of ribs, one of which 

 must have belonged to a large animal ; also vertebrae, matatarsal or car- 

 pal bones, &c. With the exception of the teeth, the remains are gene- 

 rally in fragments, and separated ; nor does it appear probable that we 

 shall meet with anything approaching to a complete skeleton. 



In the tract then between the Jumna and Ganges, the fossil remains 

 as yet discovered are thus disposed : — 

 Shingle^ or Gravel Beds — Lignite, scarce. 



Saiidstone Trunks of dicotyledonous trees in great abund- 

 ance ; lignite, and remains of reptiles. 



Marl Remains of mammafers, reptiles, fishes, shells, 



and lignite. 



The mineral products are, carbonate of lime, the general cement of 

 the whole formation, also in stalactites and stalagmites ; selenite, in 

 small tabular crystals ; and pyrites, but apparently in the neighbour- 

 hood of organic remains only. Soda abounds throughout the mountains, 

 efflorescing on the shingle and sandstone rocks; and the presence of 

 this alkali may explain the partial disintegration of the boulders of which 

 the shingle is composed : for, I believe, I am right in asserting, that 

 every variety of boulder, from granite to quartz and sandstones, has been 

 acted on: and when it happens that the boulders can be removed entire 

 from the bed, they fall to pieces, either after exposure to the air for a 

 time, or by pressure of the hand immediately. With regard to fractures 

 in some of the boulders, and their consolidation on different planes, as 

 in a slip of stratification, no remark whatever appears requisite, as these 

 are the necessary consequences of that movement, which raised the beds 

 from their horizontal position. There does not appear to be any fur i her 

 remark necessary on this tract, mere than can be reserved for the gene- 

 ral summary ; I shall therefore proceed to describe the hills westward of 

 the Jumna. 



• The only univalve which has been yet found in the marl is the cast above-mention- 

 ed, from the rock north of Nahun. I have entered it here, considering, as I do, that 

 the deposits are identical. 



