Notwithstanding the difficulties which occur in tracing this Iter from Carlisle to the Wall, yet from thence to the Tay the direction of the road, and the situation of the stations as fixed by General Roy agree so perfectly with the Itinerary, as to leave no doubt that he has ascertained their real position. But although he discovered a road north of the Tay, yet, as he found no vestiges of stations, Mr. Chalmers seems to have been more successful in fixing the posts between that river and Ptoroton.

It does not appear that the road was ever completed: however, from Orrea on the Tay, a little above Perth, he observes, that the communication ran through the passage of the Sidlaw Hills, and along the Carse of Gowrie to the north end of the estuary of the Tay near Dundee; two miles west of which place, and half a mile north of Invergowrie, are the remains of a Roman camp about two hundred yards square, fortified with a high rampart and spacious ditch. Here he places Ad Tavum. Proceeding hence north-easterly through the natural opening of the country, and passing in the way the camp at Harefaulds, at the distance of twenty-three miles is Brechin on the South Esk, the station Ad Æsicam, exactly in the line laid down in Richard's map, and at the distance given in the Itinerary. Continuing from the South Esk in a north-north-easterly direction, at the distance of five miles and a half, we reach the North Esk, the supposed Ad Tinam. We pass that river at King's Ford, and proceeding up the valley of Lutherwater, at the distance of eight miles and a half find Fordun, where there are the remains of two Roman camps. From thence proceeding seventeen miles, to the well known camp at Raedikes, and continuing in a northerly direction six miles beyond, is the rectangular camp on the Dee at Peter Culter, called Norman Dikes, the Devana of the Iter. This point is exactly thirty-one miles from Brechin on the South Esk, agrees with the aggregate distances in the Itinerary Ad Tinam VIII, and Ad Devanam XXIII, and corresponds with the track delineated on Richard's map.

The obvious openings through this rugged country point out the way by which the Romans must have penetrated northerly by the right of Achlea Fiddy and Kinmundy, to Kintore on the Don. They followed the Strath to the ford where the high road has always passed to Inverurie, and proceeded north-north-west through the moorlands, to the sources of the Ithan, and the camp at Glenmailin, the Ituna of Richard, a distance of twenty-six miles. From thence proceeding northward, across the Doverna at Achengoul, where are still considerable remains of military works; and at the distance of thirteen miles, we reach the high ground north of Foggy lone, at the east side of Knock Hill, the Mons Grampius of the Iter.

Hence the road runs to Ad Selinam, which is supposed to be on the Cullen, near the old Tower of Deskford, at the distance of ten miles. Following the course of the river, and the coast of the Murray Frith, seventeen miles, we arrive at the Roman post of Tuessis, on the high bank of the Spey, below the church of Bellie. Seventeen miles further is Burgh Head, the Ptorotone of Richard.

Iter X.Sites of the Stations.
(91) Ab ultima Ptorotone per mediaminsulæ Isca
Damnonorum usque, sic:—		From Burgh Head through the middle of the
island to Exeter.
Corrected
Numbers.
(92) Varis[708] m.p. VIIIName and
Numerals from
General Roy.		{ForesVIIII
(93) Ad TuessimXVIII{Cromdall on SpeyXX
(94) TameaXXVIIII{Braemar CastleXXX
(95) ————XXI{Barra Castle on IlaXXX
(96) In MedioVIIII{InchstuthillXII
(82) OrreaVIIII{Bertha on TayVIIII
(80) VictoriaXVIII{Dealgin RossXXIIII
(52) Ad Vallum[709]XXXII{CamelonXXXII
(74) LuguballiaLXXX{CarlisleCXVIIII
(97) BrocavonacisXXIIXXIIBrougham.
(98) Ad Alaunam...XXXXVIILancaster.
(99) Coccio...XXXVIBlackrode.
(63) MancunioXVIIIXVIIIManchester.
(65) CondateXXIIIXXIIIKinderton.
(100) MediolanoXVIIIXVIChesterton.
(15) Etoceto...XXXVWall.
————— —————
(101) Salinis m.p....XXIIDroitwich.
————— —————
(102) Glebon Colon. m.p....XXXIIIIGloucester.
(103) CorinoXIIIIXVIIICirencester.
(104) Aquas Solis m.p ...XXXBath.
(105) Ad AquasXVIIIXXProbably Wells.
(106) Ad Uxellam amnem m.p....XXIProbably Bridgewater.
(107) Isca m.p....XXXXVExeter.

The first part of this Iter is taken from General Roy; and as we have none of the intermediate stations between Carlisle and the Wall, every commentator may choose what route he pleases, although none will coincide with the distances of the Itinerary. From Carlisle, if we place any reliance on the numbers, the next station, Brocavonavis, can only be fixed at Brougham. Thence the road to the banks of the Lune, as well as the station on it, is uncertain; for, whether we choose Overborough or Lancaster, we know of no road to direct us; and the only reason for preferring the latter is the supposed site of the next station, Coccium, at Blackrode, and the course of the road through Lancaster, tending more immediately to that point, than the road through Overborough. The two next stations, Mancunium and Condate, as well as the connecting line of road, are well known. From Kinderton, although there is a Roman way pointing to Chesterton in Staffordshire, the Mediolanum of this Iter, and the site of Etocetum is undoubtedly Wall, yet we speak with hesitation of the line of communication betwixt them; though we presume it ran through Newcastle, Stone, and Ridgeley. From Wall, which is on the Watling Street, the Iter continues along the Ryknield Street, through Sutton Colfield Park, to Birmingham. There falling in with the first Salt-Way, it proceeds to Droitwich, and is continued by the Western Road, through Worcester to Gloucester. Here, turning nearly at a right angle, it passes by the well known Roman road over Birdlip Hill to Cirencester; and trending to the right, proceeds by the Foss to Aquæ Solis or Bath. Quitting the Foss, and still bearing to the right, it continues along the lower road to Wells, and from thence to Uxella, which was probably at Bridgewater. From the banks of the Parret it ran in the track of the British Way, and the present turnpike by Taunton, Wellington, and Collumpton, to Exeter.