Note 78 — PART III. LOCAL DESCRIPTION OF THE WORKS.

Unable to resist the positive testimony of an intelligent eye-witness, I was, at first, disposed to think that he had included in his measurement some chamber on the inside of the station wall. I am now prepared to receive the statement without deduction. Some recent excavations at Risingham have laid bare a part of the curtain wall which has been built double, the intervening space, or chamber, being filled up with rubble and rubbish run together with lime, so as to form a solid mass of masonry of considerable thickness. The object of this arrangement may have been, to form a solid, elevated platform, for the use of the soldiery.