A heron flew low down across my path, and dived between the low bushes on the river bank quite close to me. I peeped through them, and there he was, standing majestically on a stone in the middle of the river, fishing, looking very beautiful with his blue-grey plumage and dull yellow legs.

Soon I came to the railway; the Wall is quite lost in these low-lying fields, and one has to cross the railway by the only path, almost on the site of the Vallum. Passing a row of new cottages, called Thirlwall View, I came out into the road leading to Gilsland, and now I could see the Vallum in the fields across the road. I entered the nearest field-gate, and was now almost on the site of the Wall again, as far as Wallend Farm. Then the Wall-ditch appeared again, very conspicuous indeed, of great size and interest. I pursued it through grassy meadows, which seemed to be all ditch and rampart, and over stone walls, till I came to a thick group of trees beside a stream. Here were the farm-houses of Chapel House and Foul Town. A troop of young black cattle saw in me a hope of getting through the farm-gate, and followed me closely, even licking my hands as I opened the gate! But they did not get through. I could not find the "Hadrian" stone at Chapel House which Dr. Bruce refers to, and they could tell me nothing of it at the farm; but I understand it has been taken to the Black Gate Museum, Newcastle. I crossed a bridge over the stream and continued westward, Orchard House, Gilsland and the Shaws Hotel coming into view on the green slopes on the right.

At the Red House, Gap, a pet lamb with a garland round its neck, made overtures to me. At the White House, I turned into the farm-yard, and went to examine the centurial stone mentioned by Dr. Bruce. It was thickly whitewashed over, and quite illegible. I had seen it so on a previous visit, and had begged to be allowed to remove the whitewash, much to the amusement of the farmer's wife. However, she humoured me, and brought me a bowl of warm water and a sponge. It was all the kinder of her, because it was Gilsland show-day, a great occasion, and she was busy sending off the men and the animals in all their bravery, with coats being brushed, and manes and tails properly combed out—all in the farm-yard.

I left the stone looking beautifully clear, though it made what the farmer probably thought was an ugly dark patch in the white wall; but I begged them to keep it so when next the wall was whitewashed.

So I was disappointed to find they had forgotten. No wonder Dr. Bruce himself failed at first to find it on his last visit; that is what I was told had happened.

After leaving White House, I found the Wallditch again magnificent between Gap and Gilsland Station, and the mounds of the Vallum running on a higher level than the Wall, for a wonder.

The line of the Wall crosses a side-road to the south of Gilsland Station, and continues through fields to the Poltross Burn, which is the boundary between Northumberland and Cumberland. I followed it, but coming to a stone wall, with piggeries and bee-hives set up close against it, blocking my path, I had to climb the wooden fence on to the railway embankment, and so came without difficulty to the edge of the burn, just where the Wall must have crossed it.

There is a curious stratification of the rocks here; sloping ledges, from 4 to 6 feet high, make a series of great natural steps down. There must be a drop of some 20 feet from the bed of the stream, where the Wall crossed it to the point where the railway arch crosses it, only a few yards away.

Farther to the south, the banks of the stream are lined with Roman stones, where the Vallum crossed it; also the sides of the Vallum-ditch. This is not found elsewhere.

Crossing the burn, I climbed the steep bank on the opposite side, which is planted thick with trees, and came out just at the site of the mile-castle which is known as Poltross Burn mile-castle. It was evidently placed here to guard the passage of the stream. It was excavated by the late Mr. J. P. Gibson and Mr. F. G. Simpson in 1910, but has been covered up again, and only a cairn of stones between the stream and the railway-line marks its situation. Locally, it was known as "The King's Stables" by the country people. The discovery in this mile-castle of a flight of stairs leading up to the rampart-walk is especially valuable, because from them a calculation of its height could be made. It was found to be 12 feet above the first-period floor, thus confirming previous calculations of its probable height. There was also a complete arrangement of inner buildings with walls 2 feet thick.