The walls, ditches, and gateways of the station are all discernible. The northern gateway would be the one chiefly used by the garrison, as it opens directly upon the Great Military Way. An examination of the western gateway, some years ago, led to the belief that it had been walled up at an early period; this is the most exposed side of the camp. A portion of the wall of the station near the north-east corner, when cleared by its late owner, Mr. Hedley, stood twelve courses high. In this case, as in many others, the researches of the antiquary have only facilitated the operations of the destroyer; much of it has since been removed. The size of the stones, which is considerable in the foundation course, gradually diminishes upwards. [Sidenote: CHESTERHOLM.] At least two buildings provided with hypocausts, have been discovered here. One of these stood about fifty yards beyond the western rampart, and when discovered, contained a square apartment, vaulted above. Some of the vaulting-stones are still preserved at Chesterholm; they are grooved near the lower extremity, apparently to allow of the joints being strengthened by the insertion between them of keys of slate or wood. The remains of this building were more complete when Hodgson wrote the following paragraph than at present:— The pillars of the hypocaust are still very black with fire and soot; and people say that the Bowers, from the Roman age till within the last century, was the elysium of a colony of fairies; and this ruined bath, the kitchen to one of their palaces, of which the soot among the stones was undeniable evidence; and confident belief affirmed, that long passages led from this laboratory of savoury messes to subterranean halls that ever echoed to the festivities and music of the Queen of the Bowers, and her aërial court. [Illustration: Altar to Fortune, Chesterholm] The other hypocaust was partially explored by Warburton in 1717, but more fully by the rev. Ant. Hedley in 1831. It stood within the area of the camp not far from the eastern gateway. In its ruins, Warburton found the fine altar to Fortune, here engraved. It is now preserved in the Library of the Dean and Chapter at Durham, the ‘judicious’ antiquary not having been able to obtain his price for it of my lord Oxford.[112] Here also Mr. Hedley discovered the three noble altars [Illustration: Hypocaust Pillar] which are still preserved at Chesterholm. The pillars which supported the floor of the hypocausts were of different shapes and diameters; some of them were portions of square columns, as in the annexed example, some circular, like the balusters of stairs, as may be seen by the specimens of them in the garden at Chesterholm. The Romans themselves, Hodgson remarks, seem to have treated the fallen works of their predecessors here with very little ceremony, when they cut down the handsome columns of halls and temples into pillars for sooty hypocausts.