DIAMOND MINES OF SOUTHERN INDIA. 





• A considerable range of mountains called the INallaMalla* (Bine Moun- 

 tains?) lies between the 77° and 80° of East longitude. Their highest points 

 are situated between Cummum, in the Cuddapah district, and Amrabad,a 

 town in the province of Hyderabad North of the Kistna, and vary in height 

 from 2000 to 3500 feet above the level of the Sea. The following baro- 

 metricalf heights are taken from my own observations, the others are from 

 trigonometrical calculations with which I have been favored by Colonel 

 Lambton. 



Trigonometrical I Barometrical 



heights j heights 



above the level of the Sea. above the level of the Sea. 



3086 feet 



3149 



3055 



3060 feet 



1767 

 1563 



2520 



not visited, 

 not visited, 



7H7 



507 



leoo 



Durgapah-condah, a hill station of Colo- 

 nel Lawbton. 



Pass between Cummum and Nandial. 



Temple of Sri Sailam.J 



Ruined Temples and Stone Tank S. E. 

 of Sri Sailam, 5 miles. 



Byramcondah, hill station of Colonel 

 Lamb ton, 



Cundah-Brahmeswar, hill station of Co- 

 lonel Lambtoa. 



Town of Nandial. 



Town of Cuddapah. 



Bed of the Kistnah at Moorcondah. 



The outline of these mountains is flat and rounded, very rarely peaked, 

 and as they run N. E. and S, W. the ranges gradually diminish in height, 

 until in the former direction they unite with the sandstone and clay 

 slate mountains of the Godavery near Palunshah. 



Their union is cer- 

 i 



* I have reason to believe that this name is merely local. ■ . 



f The Barometer is a late contrivance of Sir Harry Englefield. It is called the Box Barometer 

 ,and is refilled at every station with purified mercury. The cistern is of box-wood and open ; with a 

 •gage an exact inch in height, which is adjusted by a lens at the time of observation. It diners but in' 

 a trilling degree from other barometers with which it has been compared, and I believe that its hora- 

 ry variationy are more uniform. From the close correspondence usually observed between the tri- 

 gonometrical and harometrical heights at many of Colonel Lambton's stations, I think the maximum 

 of error is not more than 50 feet. 



J Pagoda of Peiwuttum described by Col. Mackenzie in the Asiatic Researches, vol. v. 



