38 Transactions. 
The masonry consists of a wall starting from the east side of 
Bridge Street, and extending eastwards 10 feet 5 inches, thence 
in a direction south-east 6 feet 3 inches, and again eastwards 40 
feet 4 inches, terminating in a line with the Brewery Street 
end of the buildings lying on the north side of the narrow street 
before mentioned. The depth at which the wall is founded varies, 
being upwards of 10 feet below the surface at Bridge Street, 
and 4 feet below the surface of the water in the river at 
the bridge, 4 feet below the surface at Brewery Street, and 6 feet 
midway between these points. The top line of the wall is also 
irregular, and the work varies in height from 9 feet or more at 
Bridge Street to about 4 feet at its centre, and 24 feet at 
Brewery Street ; and it measures about 3 feet in thickness. The 
masonry is solid and strong. It is composed of the red sandstone 
of the district, well cemented together with lime mortar in which 
is a inixture of shells, and it is faced on one side, the south one, 
with hewn ashlar, in regular courses about 11 inches in height. 
The westmost part of the wall is in a line with the south side of 
the Old Bridge. 
At a point 274 feet east of Bridge Street the wall is pierced 
by the remains of a culvert 4 feet 3 inches wide, the floor of 
which is 9 inches below the surface of the water in the river 
opposite. The opening continues northwards beyond the thick- 
ness of the wall, under the narrow street; its sides are of 
ashlar, similar to the facing of the wall, and rest on flat 
projecting foundation-stones, the edges of which are splayed and 
hewn like a base course; and its top appears to have been 
closed by arching. 
The west end of the masonry is terminated by the remains of 
a large arch. Only the south end of the arch could be inspected, 
and it showed a projecting springing course, 12 inches in height, 
splayed on the top, and thirteen thin arch-courses, their thickness 
being about 6 inches. The arch ring is about 18 inches deep, and its 
angle is chamfered ; it is of good and tasteful workmanship, and 
in excellent preservation. 
- [have now described the masonry, and I may be permitted 
to express the opinion that it has formed the east abutment of the 
Old Bridge built by Lady Devorgilla in the 13th century, which 
is known to have been originally of much greater magnitude than 
the six arches which still span the river. 
In order that tie full original dimensions of the Bridge may ie 
