part 2.] Racket: Country near Gwalior. 
The following is an analysis of' one of the felsites by Mr. Tween 
Silica 
Alumina with a little iron 
Lime 
Magnesia 
Potash 
Soda 
Total ... 102'OS 
Mr. Medlicott, who has examined a portion of this area, found in the nuddy south of 
Raipoor some spherical hollow lumps imbedded in the felsites, which he describes as 
“volcanic (?) bombs, spherical hollow lumps of coarse trappean matter, imbedded numerously 
like great drops in one of the fine compact intertrappean beds a few feet over the Choura 
trap flow in section south of Raipoor.” 
It is difficult to arrive at any conclusion as to the origin of these beds ; but from their 
association with the traps, their general appearance, and composition, it seems probable that 
they are trappean ash-beds. 1 
Limestone.— The limestones arc very uncertain in the section. Of the two limestones 
exposed m the Dharoli section, the lower, that between the Choura and Bela traps is 
covered by the alluvium both in the east and west of the line of section. The upper is v’erv 
discontmuous along the strike ; at some places there is a considerable thickness of it, while in 
others it is entirely absent. 
Uncertain occurrence of limestone—The best instances of the uncertain occurrence of 
the limestone are at Bhandaoli, Siharo, and Dangora. 
. At Bhandaoli the hill is about 150 feet high, in which, in ascending order, the following 
section is exposed:— ° 
Foct 
Silieious shales ... ... ... 2 5 ‘ 
Calcareous shales with bands of limestone ... ... ... 20 
Limestone ... ... ... ... ^qq 
Silieious jasper-shales ... ... ... ... 20 
The beds are nearly horizontal; only a few hundred yards further to the east there is 
JIO limestone in the section. On the west side, under the castle, the limestone is replaced 
by oehreous clay beds, in which are a few thin hands of limestone. A short distance further 
west, the only limestone in the section is in the calcareous shales at the base of the hill. 
Siharo.— About a mile east of Siharo and north of Ootilla there is a hill of lime¬ 
stone nearly detached from the main range. The hill is about 100 feet high. On the south 
side, on the top, there are about 70 feet of limestone; under this about 20 or 30 feet of 
calcareous shales with bands of limestone and at base silieious shales. In the main range 
not 50 yards distant there is not a trace of limestone. 
Dangora. —Another Instance of the uncertain occurrence of the limestone is at. 
Dangora.. Here there are about, 50 feet of limestone seen in section. It continues round 
the north side of the hill, hut at a short distance to north-east the limestone becomes more 
earthy until it passes into the oehreous clays. East of Dangora, the limestone continues 
for a short distance towards Fasoulee, but at that place none is seen in the section. 
I might mention many other cases of the sudden disappearance of the limestone, but 
I think the above sufficient. The rock that replaces the limestone in the section is always 
the oehreous clay beds. The limestone and the accompanying rocks are as nearly as 
possible horizontal, so that the sudden disappearance of the former cannot he accounted for 
by dip. The beds above and below the limestone being identical with those above and below 
the oehreous clay beds prove that, the limestones are not faulted out of sight. 
Tbap. 
There are ail .least four separate spreads of trap. I shall name these the “ Morar trap,” 
the “Barai trap,” the “ Choura,” and the “Bela trap;” there is also a large spread of trap 
west of Puniar ; this, I think, is a disconnected part of the Barai trap. 
Besides these great spreads, several smaller patches oceur, as at Kote ki Serai, 
Malipoora, Singpoora, BaroOri, and Fasoulee. It is probable that some, if not all.’ 
<»0o0 
24-51 
2'08 
132 
9-16 
4-51 
