More of ornamental detail seems to have been bestowed on the architecture of these stations and mile castles than on the wall, which was intended for defence. The walls have moulded basements and cornices, of which there are woodcuts on this page and the next; the one from Vendalana (Chesterholm) exhibits also the peculiar ornamentation of the surface of the stone work, which is produced by cutting lines in various directions, either lozenge-wise or parallel, horizontal, upright, oblique, or zigzag-wise, thus producing considerable variety. In the extremely interesting Saxon crypt at Hexham, which was built out of the ruins of the Roman Wall, many varieties of this peculiar tooling, or "broaching," occur, along with ornamental mouldings, &c., and inscribed slabs, one of which has been cut to form the semicircular head of a doorway. The beautiful fragment of a capital also given was found in the station of Cilurnum (now Walwick Chesters). It has probably belonged to the portico of a temple. It appears to be a late variety of Corinthian or composite. It serves to show that there must have been considerable expense bestowed on these stations, which were, in fact, military cities, in which the commanders resided. The doorway from the station of Bird-Oswald is valuable as showing a peculiar form of door-head, cut out of a solid stone. It forms the entrance to the guard-chamber from the gateway of the station. [Illustration: CAPITAL FROM CILURNUM (WALWICK CHESTERS).] [Illustration: DOORWAY FROM BIRD-OSWALD.]