476 Geological Remarks between (Serr. 
At the distance of four or five miles to the south of Mirzapur we 
come to the sandstone range, about 200 feet high, and presenting a 
steep escarpment to the alluvial plain at its base. Thence it sweeps 
round in a N. W. direction to Vindachal, where it may be traced 
nearly to the bank of the river. The front of it towards the water 
is covered with rounded boulders nearly to its summit. From hence 
this range extends to Chunar, as may be seen in Captain Franxtin’s 
map, and east of that to a place called Jemorah, where I have before 
mentioned it as occurring. It preserves here the same character as 
at that place, viz. that of a small-grained, highly consolidated sandstone 
approaching to quartz rock, usually of a greenish grey or faint pink 
colour, and splitting into large slabs of divers thicknesses. At Vindachal 
the general dip is to the west at an angle from 5° to 20°. Further to 
the east, where the road to Sagar ascends it at the pass of Turd, the 
dip is to the west, and scarcely perceptible. At the Tura waterfall a 
deep section may be seen of it. It presents no variety of character, 
nor is it at all interstratified with marls or shales. At the foot of the 
pass I found an efflorescence of soda on a kankar bank, similar to what 
occurs in the plain to the N. W. of Ghazipur. 
After ascending the pass we travel over a country nearly flat and 
covered with soil and vegetation. About 20 miles further on, at 
Ldlganj, the rock was laid bare in the bed of a small nullah dipping 
slightly to the north. The soil above it contained pieces of kankar 
and iron ore, similar to what occurs about Bankaira and elsewhere. 
Nine miles further on in the bed of the Balan river, the rock was ex- 
posed with a slight dip tothe west. At the foot of the Aattra pass (for 
the situation of which I beg to refer to Capt. Franxuin’s map, (Trans. 
Phys. Cl. vol. i.) I met with soda efflorescing, and kankar, at the side 
of a ravine, as I had done before at Tard. From Kattra the road 
winds up a precipitous ascent over strata of sandstone dipping to 
the N. W. The sandstone does not appear to differ from that of the 
lower platform from Katira to Térd, but it is here interstratified with 
thick beds of red and greenish-grey marl-slate, and rarely with thin 
layers of a rock resembling greywacke, rather dark-coloured but con- 
taining pieces of slate imbedded. At Mowganj, two marches beyond 
Kattra, the dip of the rock was N. E. at an angle of from 10° to 15°; 
as seen in the bed of the nala. At Lour, a little further on, they 
were quarrying a slaty marl, with shining facets and white streaks 
running through it. These streaks are calcareous and effervesce strong» 
ly with acids. Pieces of a compact splintery limestone are also to be 
found lying about on the surface. The strata here are horizontal. In the 
