380 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



grey, glistening, resinous quartz, and then by a considerable thick- 

 ness of white quartz with scales of mica. This constitutes the ridge 

 of the range for about its entire length from Waregaum to Gumtara, 

 and with its snowy-whiteness attracts attention from a great distance. 

 At the northern base of the range, between the quartz and the dolo- 

 mite of Korhadi, there are interposed some beds of granular quartz- 

 ose rock, which has very much the appearance of being an altered 

 sandstone ; in which case it might be the representative in this part 

 of the country of the " Tara sandstone." But throughout the field 

 of crystalline limestone at Korhadi there are many eruptions of 

 granite, which just rise to the surface without any intermediate meta- 

 morphic rocks at all. In some of those instances the granite is 

 garnetiferous, and at its junction with the dolomite the latter, be:L-ides 

 its usual ingredients of steatite and tremolite, is intermingled with 

 mica. At Halyadoba, N.E. of Umred, chlorite-schist with garnets 

 is quarried for pavements ; it abounds along the course of the Amb 

 River. At Shegaum various plutonic rocks rise from under the sand- 

 stone, and extend northwards to Karsingi. The first which appears 

 in the north street of Segaum is syenite, in which the felspar and 

 hornblende greatly preponderate over the quartz. About 300 yards 

 to the north this is succeeded by another kind of syenite, in which 

 red felspar is combined with a small proportion of quartz, and a large 

 quantity of a green mineral (epidote or diallage ?). This rock 

 (euphotite ?) seems to be massive, and, if we may judge from the 

 fragments of it lying on the surface, is the prevailing rock for some 

 miles. In an adjoining plutonic area, a little to the north, there is 

 an extensive development of pot-stone at Jambul Ghat. The rich 

 dark kind that possesses a small metallic lustre has hitherto been 

 reserved by Maratha authority for the manufacture of idols ; but the 

 lighter-coloured varieties, which are more common, occurring also at 

 Dini near Rampaili, and at Biroli on the Wein Ganga, nearTharora, 

 have been long used for fashioning into vessels. Steatitic schists of a 

 pure white tint, with a few imbedded garnet crystals, occur at Kaneri, 

 on the Chulband river, and at various other localities east of the 

 Wein Ganga. In many parts of this river's course, and in the 

 Lanji Hills, hornblende rocks, both schistose and massive, abound. 

 A coarse kind of corundum occurs at Dali Ghat, on the road from 

 Nagpur to Ragepur. 



Metals. — Small quantities of gold are found near Lanji in the 

 sands of the Son river, a tributary of the Wein Ganga. In some 

 fragments of quartz-rock on Nima Hill, west of the Pech river. Col. 

 Jenkins found galena. Where this rock is associated with dolomite, 

 as at Kumari, it contains manganese. But the principal ore which 

 it yields is iron ; this may be obtained in immense quantities in the 

 province of Chanda, both on the east and west of the Wein Ganga. 

 Near Dewalgaum, only three miles from the east bank of this navi- 

 gable stream, which communicates by the Godavari with the Bay of 

 Bengal, at Masulipatam, in the midst of a level country covered 

 with jungle, there is a hill named Khandeshwar, consisting of strata 

 tilted up at an angle of 60° or 70°, the dip being to the north. The 



