62 Report on the Progress of the Magnetic Survey. [No. 1. 



East of Paindra, and forms a swampy marshy place over a consider- 

 able extent. 



The Tohilla rises about 5 miles North of the Nerbudda, at a 

 place called Tohaletsur, nearly on a level with the Nerbudda. 



The Trap, a small river, which flows to the South, and joins the 

 Mahanuddy, has its origin near Paindra, from several large tanks, 

 forming at first a swampy ground. Its source is situated about 

 5 or 6 miles from that of the Soane, and its water-shed is not 

 formed by a distinct ridge, but only by a slight rising of the ground. 



On the journey from Sohagpore through Eewah to Allahabad, 

 I took the opportunity of carrying a barometric and geological 

 section over the plateau of Bundelkund. 



The plateau, or rather the succession of plateaux, consists of 

 a reddish and white sandstone, in large banks, which are generally 

 horizontal — it reposes upon limestone and shales of blue and grey 

 colours, which very often are a little more inclined than the sand- 

 stone, and the shales are quite identical with similar rocks which 

 I observed in the Gwalior Territory. The plateau of Bundelkund 

 terminates abruptly about 40 miles South of Allahabad, where the 

 sandy deposits of the plain of Hindustan begin. 



Simlah, 27th Mag, 1856. 



