136 
Wye the distance is 220 yards; and from the latter point to 
the extreme edge of the limestone the distance is about 14 
miles. 
The Wye crosses the edge of the limestone Westward at a 
point half-way between Doward Camp and Little Hadnock. 
At Staunton the width of the limestone is about half a mile. 
Producing a line through the Beaches and Cherry Orchard, 
the distance from the outcroppings of the coal measures to the 
limestone would be about half a mile, and from the latter point 
it will be found to spread out to a distance of 14 miles. 
At Newland, Lower Redbrook, Lodges Farm, near Scatter- 
ford Wood, up to Ostridge Grove, by Bircham Grove, and as 
far South as Clearwell, a portion of the Carboniferous Lime- 
stone has been broken up, and denuded in an irregular patch 
down to the Old Red Sandstone, which latter is connected to 
the great mass of that series in Monmouthshire. 
The continuity of the limestone adjacent to the coal 
measures has not been destroyed, for, opposite to this denuded 
patch, we find the limestone against the Millstone Grit, half a 
mile in width. The very irregular and horned appearance of . 
the exterior edge of the limestone, from Howell’s Hill to the 
neighbourhood of Hastridge Wood and Coxbury, is sufficient 
evidence of the effects produced by denuding influences. It is 
very remarkable that the isolated patches of limestone at 
Highbury and Penalt Common withstood such influences, and 
remains as proof of the extension of the limestone into Mon- 
mouthshire. These two patches of limestone are entirely 
surrounded by the Old Red Sandstone. Half a mile South of 
Clearwell the limestone attains a great width on account of its 
slow dip or flattened position, and if we were to draw a line 
through Elwood and Lodges Barn, the distance from the out- 
croppings of the coal measures is about 550 yards, and from 
this point the limestone spreads out 2} miles. Producing a 
line from Oakwood Mill Level to St. Briavel’s, the distance 
from the coal measures to the limestone is about one- 
quarter of a mile, and from this point the limestone will have a 
width of 24 miles. The limestone is again broken up and 
