Glasgow Archaeological Society [Hrsg.]
The Antonine Wall report: being an account of excavations, etc., made under the direction of the Glasgow Archæological Society during 1890 - 93 — Glasgow, 1899

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in the centre, from which they curve upwards towards the
external face of the vallum; in other words, the lines are
slightly concave, being higher at the ends than in the middle.
This is most marked on the south side. The surface of the
ground, when cut, shows here a distinct dark line at the top of
the sod.

The reddish tints of the soil are lost immediately beyond the
edge of the kerbs, where a brown soil prevails, entirely without
the light ochreish colour so apparent in the vallum within the
kerbs. There are indistinct traces of protraction of the lines for
a few inches on the south, but the layers are very much broken
up when they pass the kerb line. The fosse was well cleared out
in presence of Mr. Russell, under conditions analogous to those
described at Seabeg No. 2 and Bonnyside No. 1. The bottom
was reached at 4 feet from the present surface of the centre of
the ditch. A mossy growth lay highest in the section. When it
was pierced a sludgy sandy mixture was struck, quite soft and
easily worked. Then, on the bottom, came a firm dark boulder-
clay. The scarp and counterscarp are of a faint-red sandy soil.
On the edge of the berm and scarp there are no large stones laid
as at Bonnymuir No. 1. The crown of the counterscarp, how-
ever, has in position one large amygdaloidal piece of trap, 26|-
inches long, 18 inches broad, and 20 inches thick, indicating with
much clearness the top of the slope—the angle made by the
edge of the outer mound meeting the top of the counterscarp.
A foot lower in level, 3 feet away from this large top stone,
there is a much smaller stone, seemingly toothed in roughly
between three or four smaller packing stones below it. It forms
part of the line or slope of the face of the counterscarp. Behind
these and a little lower in level there is a large freestone which
rests on the dark line, next to be commented upon.

The outer mound, 34 feet wide on the crown and 59 feet at
the base of the section, makes a very imposing cutting. In it
there is to be seen plainly enough, right through from one end
to the other, a straight dark line starting between 2 and 3
feet below the top of the counterscarp and continued to the
further end of the mound—a distance of 63 feet. The plate
of this section shows in the outer mound the present surface,
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