346 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



and Narbadda Territories, between 78° 15' and 80° 35' east longi- 

 tude, and 19° 35' and 22° 40' north latitude. It is of a triangular 

 shape, each side extending about 180 miles. Its northern side is 

 formed by the table-land stretching from the Mahadewa Hills on 

 the north-west to the northern extremity of the Lanji Hills on the 

 north-east : the south-eastern side is constituted partly by the chain 

 last mentioned, and partly by a line drawn from its southern base 

 to the junction of the Wein Ganga and Wardha, which latter river 

 marks out nearly the whole of the south-western side. (See Map, 

 PI. X.) The limits as thus defined enclose an area corresponding 

 with that surveyed by Lieuts. Norris and Weston in 1826, and 

 amounting by their calculation to 24,000 square miles. 



The city of Nagpur is situated very near the centre of this area. 

 In the northern division, where the hills are both most numerous 

 and most elevated, the direction of the ranges is east and west. In 

 the southern, which contains a greater extent of level country, the 

 course they take is generally north and south. 



Chouraga^/, the highest summit of the Mahadewa hills, and the 

 loftiest point in our district, rises to an altitude of 4200 feet above 

 the sea : the usual height of the range, which entering the Nagpur 

 territory from Gawilgac? passes by Dewagad towards Siwani, is not 

 above 2000 feet, though in the east of the same chain, where it goes 

 under the name of the Lanji Hills, some of the peaks attain an ele- 

 vation of 2300 and 2400 feet. At Nagpur the country has fallen 

 to a level of 1 000 feet. On the west, however, it immediately rises 

 by 200 or 300 feet in a succession of eminences, which run parallel 

 to the Dewagac? range, until they reach the basin of the Wardha, 

 when they suddenly sink in precipitous descents as at Talegaum 

 Ghat. Towards the east of the capital, the plain extends almost 

 without interruption to the banks of the Wein Ganga, where the 

 general level is about 900 feet above the sea. Still further east, on 

 crossing the river, we find the country preserving its former flatness, 

 except that occasionally it is diversified by ranges of hills running 

 north and south, of which that encircling the Lake of Nawagaum is 

 the most considerable. In the southern division of the territory 

 there are few hills, if any, that rise above 2000 feet ; while the 

 champaign tracts, which abound on both sides of the Wein Ganga 

 and Wardha, fall, ere these rivers have effected the junction of their 

 united streams with the Godavari, to 800 feet above the sea-level. 



It will thus be seen that our district presents a watershed from 

 north to south. The most important rivers which flow through it 

 are the Kanhan from the Mahadewa Hills, which at Kampti receives 

 the Pech from the same upland tract, and the Kolar, — the Wardha, 

 which is joined by the Wanna from the hills west of Nagpur, and by 

 the Pain Ganga from the Nizam's country, — and the Wein Ganga, 

 the largest of all, which on its left bank is increased by the united 

 streams of the Wag, the Son, and the Dewa, and by the Chulband, 

 and on the right by the Kanhan and Wardha, after its confluence 

 with the latter of which it takes the name of the Pranhita, and ere 

 long discharges its waters into the Godavari. 



