STRUCTURE OF SEWALIK HILLS. 



37 



the plains ; long before reacliing whicli, the whole formation 

 consists of an interminable succession of sandstones and clays, 

 the latter being in the greatest abundance, of every variety 

 of colour, and dipping, on an average, 20° to the north. The 

 topographical outline of these mountains shows a consider- 

 able southing of upheavement, in the hills westward of the 



Fig. 2. 



PLATEAU UPON WHICH THE VILLAGE OF DEONI IS SITUATED, ON THE MUEKUNDA EIYER. 



a. White Sandstone, b. Red and Brick-coloured Clay. c. Debris. 



Jumna, as will be observed in the map ; ^ and the circum- 

 stance of the fossil remains abounding in the sandstones and 

 clays in this tract, and not in. that between the Jumna and 

 the Ganges, may probably be due to the non-upheavement of 

 the line on its prolongation eastward of the Jumna. The 

 drawings which accompany this paper (figs. 2, 3, and 4) show 

 that the action, in all probability, was exerted irregularly ; 



Fig. 3. 



-if^ 



SLIP UNDER TULOAGPOOE. 



and although in the large scale we may lay down the dij) and 

 direction with accuracy, the former as varying from 15° to 35° 

 and the latter from NE. to SW., local details give very dif- 

 ferent results. 



' Plate'III. 



