ROMAN REMAINS AT GRASSY WALLS AND BERTHA
I.
NOTES ON THE ROMAN REMAINS AT GRASSY WALLS AND BERTHA,NEAR PERTH.
Very few parts of Scotland are as rich in archaeological and
historical remains and associations as the city of Perth and its
immediate neighbourhood.
Monuments belonging to prehistoric times still survive in large
numbers in the district, evidence of its connection with the Romans
is seen in the remains of two forts or camps, and our historical
records show that for a long period it enjoyed a prominent position
in the government of the country, particularly during the Wars of
Independence and the early Stuart reigns.
The reason why Perth should have been a centre of such importance
for so many centuries is simply that the physical characteristics
of central Scotland—the mountain masses of the Grampians on the
west and the deeply penetrating Firth of Tay on the east—determined
that the district should be one of the chief nodal points in the
main line of communications between the south and the north of
Scotland, especially as it lay midway between these parts of the
country, and was surrounded by rich agricultural districts in times
when husbandry was the principal industry of the land.
Even at the present day, when the great industrial and
administrative centres lie in the south country, the importance of
Perth as a focus of land transport is demonstrated by the fact that
seven lines of railway converge towards it.
When the Romans decided on imposing their rule on the north
country, the most direct and, indeed, the only practicable road for
their army lay through the hollow formed by the three great
straths— Strathallan, Strathearn, and Strathmore—which stretch in a
straight line along the north-western flanks of the Ochill and
Sidlaw Hills for a distance of some fifty miles. Gradients are
easy, and the only natural obstacle of any importance in the whole
course of this route is the River Tay, which cuts directly across
it ten miles north of Perth.
No doubt the Romans had a crossing in this locality, near the fort
at Inchtuthil, which lies on the further bank, but there is a good
ford nearer Perth, about two miles from the town, immediately to
the north of the mouth of the river Almond.
This shallow was also chosen by the Romans for passing over the
river, a camp being erected in the vicinity at Grassy Walls on the
left or eastern bank, about half a mile above the ford, and a fort
at Bertha on the western bank opposite the crossing. The locality
had also the advantage of being accessible from the sea, as the
tide comes up to within 400 yards of the ford, and the Tay would be
navigable for Roman shipping as far as the town of Perth.
Portions of the fortifications on the two sites mentioned still
survive. That the remains are the work of the Romans is no recent
discovery, as they have been recognised as such for at least a
century and a half. The camp at Grassy Walls was discovered in 1771
by General William Roy, when he was engaged in investigating sites
connected with the Romans in Scotland,1 and the fort at Bertha was
described as a " Roman Station " by William Maitland in 1757.2
There is little doubt, however, that the last mentioned site had a
Roman association attributed to it before this date. For how long
before we do not know, but it may be mentioned that a farm which
once stood on the east bank of the Tay, almost opposite the mouth
of the Almond, within 200 yards of the fort, had been known by the
suggestive name of Rome for more than a century previous.
The names Old Rome and New Rome both appear on Roy's plan. During
the late evenings of the summer before last (1917), according to a
survey was made of the antiquities in the neighbourhood of Perth
by, and in the course of this work took the opportunity of visiting
these sites and comparing the remains on them with Roy's plan and
Maitland's description. Cunningham was usually accompanied by Mr
George Valentine, Perth, whose knowledge of the locality was of
great assistance , and by Mr Thomas M'Laren, Depute Burgh Surveyor,
Perth, who took no end of trouble to provide copies of old plans
and to measure and plan the remains which were examined.
GRASSY WALLS.
The camp at Grassy Walls, so called from a farm of the name that
once stood here, lies on the farm of Sheriffton, in the Parish of
Scone, some three miles north-north-west of Perth. Roy considered
that this name had been chosen because of the grass-covered mounds,
the remains of the ramparts surrounding the camp, which, doubtless,
two or three centuries ago, would be more extensive and more
prominent than they are to-day. The name " Grassy Well," however,
as will be seen later, appears on a plan drawn in 1778, and the
question thereby suggested is whether this may not be the correct
name.
The word "well" is pronounced " wall" in many parts of Scotland,
and it is quite possible that the farm may have been served by a
grassy well, as parts of the site were until late times marshy and,
indeed, contained several small ponds. But there seems little
ground for this theory, as I have been informed by 1 Dr George
Macdonald in ArcJiceologia, vol. Ixviii. pp. 185 and 224. * History
and Antiquities of Scotland, vol. i. p. 198. ROMAN REMAINS AT
GRASSY WALLS AND BERTHA. 139 the Earl of Mansfield that, so far as
he is aware, the name has always been Grassy Walls. .
The site of the camp occupies the extremity of a broad spur
projecting westwards from the lower slopes of the Sidlaws towards
the River Tay. At the north-western corner of the spur there is a
rather sudden rise in the ground forming a small hill known as
Donald's Bank, which on its western side drops in a steep declivity
some 80 feet to the left bank of the river, its summit being about
120 feet above Ordnance datum. .
The ground forms a tilted plateau, sloping generally from
north-west to south-east, and standing from 70 to 90 feet above
sea-level. In selecting a position that was to be fortified, Roman
military engineers naturally chose one of some strength, and the
site of the encampment at Grassy Walls would fulfil all their
requirements, as it is bordered on the north, west, and south by
steep banks, while on the east there is a slight fall in the ground
before it begins to rise again towards the hills; it is also
assured of a water supply from two springs within its area. .
On the northern boundary the bluff rises from a height of some 30
feet at the north-eastern angle of the camp to some 60 feet at the
north-western angle, the Gelly Burn running along its base; on the
south the bank has a general height of some 30 feet, and on the
west it gradually increases in altitude towards the north till it
culminates in the height of Donald's Bank. Roy's plan shows two
small marshes containing pools of water within the camp—one towards
the western side, and the other near the northern boundary1; but
the former was drained many years ago, and is now represented by a
hollow sloping down towards the Tay, and the latter, which emptied
into the Gelly Burn, through a small gully cut into the ridge on
the northern end of the camp by the overflow of water, was only
drained in the summer of 1917, between my first and second visits
to the site. .
From the reproduction of the plan made by Roy in 1771 (fig. 1),
it will be seen that he was able to trace the rounded
north-Avestern angle of the fort, the western rampart running
therefrom in a south-southwesterly direction as far as the summit
of Donald's Bank, the greaterpart of the northern rampart, and a
short length of the eastern mound where it crossed the higher end
of the marshy ground at the northern end of the camp. .
The north-eastern angle seems to have been almost obliterated, but
a projection of the lines of the northern and eastern ramparts
fixed its position. The southern extension of the camp was
conjectural, and Roy indicated his views regarding its bounds by
dotted lines. This plan approaches a parallelogram in shape, with
the alignment of the western side projected slightly outwards so as
to take advantage of the rise in Donald's Bank, and the line of the
northern end brought inwards at the centre that it might cross the
higher end of the small gully running into the Gelly Burn.
. The trace of the northern rampart bears a striking resemblance to
the same defence in the camp at Raedykes, near Stonehaven.1 If
Roy's plan of the encampment is approximately correct, the area
enclosed by the ramparts would measure about 128 acres in extent.
.
A track, which Roy called the " Roman Way," extended from opposite
the site of the steading of Grassy "Walls to the northern boundary
of the camp. This road passed through the gap in the northern
rampart and was said to be very distinct. .
The roadway extended from the eastern end of the ford over the Tay
at Bertha across the flat river terrace to the bluff on the
southern boundary of the fort. After crossing the enclosure it
descended the declivity on the northern margin, crossed the Gelly
Burn, and continued northwards in a course parallel to the river
along the narrow strath on the left bank. .
This track is laid down on the Ordnance Survey map, as well as its
continuation some two miles further north, in the neighbourhood of
the farm of Berryhills, in St Martins parish. In the Perth Museum,
amongst the papers which once belonged to the old Literary and
Antiquarian Society of Perth, are two plans of the camp, drawn in
1778, seven years after Roy's visit, by Mr J. M'Omie, Rector of
Perth Grammar School, and one of the founders of the Literary and
Antiquarian Society of Perth, which was formed in 1784. M'Omie
seems to have taken a lively interest in the Roman remains in the
district, as there is in the same collection two plans of what he
calls the Roman camp at Fendoch, near Crieff, drawn by him. .
One of the plans, which is coloured, is drawn to the scale of 2
Scots chains to the inch, and is entitled "A Plan of the Roman Camp
at Grassywell," and the other, which is in black and white, is
drawn to half that scale, and bears the title " A Plan of the
Roma.n Camp of Grassywell near Scoon, 1778." .
The northern portion of M'Omie's plan is in general agreement with
Roy, but his reconstruction of the southern part gives the camp a
polygonal form with an acute angle at the southern extremity. He
shows it divided into two parts by a broken line running from, the
north-eastern angle in a south-westerly direction, and a note
explains that the area on the north-western side of the divisional
line was "supposed to be the camp of the infantry," and the area to
the south-. west was " supposed to be the camp of the
cavalry.”
These sections measured 33 acres 1 rood 39 falls and 32 acres 2
roods 11 falls Scots measure respectively, which gives a total
measurement of 66 acres 0 roods 10 falls, equivalent to about 84
imperial acres. The impression conveyed by the shape of the
southern part of M'Omie's plan is that he had taken the flattened
remains of some old "fael" dykes as indistinct traces of ramparts,
but the ditch on the south-west is not .so easily explained, as an
ordinary drainage channel could hardly have been required so near
the edge of the bluff. .
At the present day the surviving portions of the ramparts appear
in plantations in which there are many traces of former
cultivation. In some places there is also a thick undergrowth of
rhododendron, bourtree, and other bushes, so that even in the
winter months, when the bracken has fallen, it is with some
difficulty that the remaining vestiges of the earthen mounds can be
traced. Notwithstanding this, after an interval of about one
hundred and fifty years, it is possible to verify the accuracy of
Roy's observations. My first visit to the site was made on 1st May
1917, before there was much growth in the vegetation.
It was hardly to be expected that any traces of ramparts or ditches
would. be detected on the eastern or southern, boundaries or on the
western side south of Donald's Bank, seeing that Roy had failed to
discover any in 1771, and the land had been under cultivation ever
since. The short section of the eastern rampart near the northern
end, in the marshy piece of ground, had been completely levelled in
the interval, and no indications of it could be seen. Remains of
ramparts, however, were distinguishable in Drumshogle Wood, the
plantation on the northern margin of the encampment, and in the
plantation on Donald's Bank on the north-west, and these were in
general agreement with Roy. A few yards back from the brow of the
steep descent of the height just mentioned, overlooking a bend of
the Tay, which cuts into its base some 60 feet below, was the
obtuse north-western angle of the camp. .
The remains consisted of a slight mound rising from 18 inches to 2
feet above a distinct hollow outside. From this point the
directions of the western and northern ramparts were traceable for
some distance: the former, though almost obliterated, could be
followed for about 100 yards, when it disappeared in a dense
thicket, in a course which would surmount the 100-foot contour
line, and pass a short distance east of the summit before
descending the opposite side of the hill; the latter appeared as a
broad low mound tending east by south through the wood, and
entering the field in a direction which would carry it towards the
south side of the small pond which occupied part of the marshy
ground before mentioned. .
Within the margin of the plantation was a gap, possibly the
northern gateway of the camp, some 15 yards wide, opening into what
seemed to have been a sunken way down the northern bank. The
continuation of the rampart east of the pond was picked up again in
the wood in the shape of a low mound spread over a width of 15
yards, and rising to a height of from 12 inches to 18 inches,
running east by north towards the public road from Old Scone which
goes past Waulkmill. The break in the alignment of the northern
defence, already mentioned, doubtlessly was rendered necessary by
the hollow and inward bend in the edge of the bluff formed by the
gully leading from the pond. An extension of the mound was searched
for in the wood on the east side of the public road, but as there
was a thick mass of rhododendrons and many open drains at the spot,
it was impossible to say whether any portion of the work at this
place still survived, or had ever extended so far. .
As irregularities in the growth of vegetation often give a clue to
the position of ancient excavations or disturbances of the soil
when these can not be determined from surface indications, I
revisited the site on 10th August, by which time the crops were
fully grown. The northern field next the wood was in grass and the
adjoining field to the south under grain. In the latter field a
strip of corn of extraordinary regularity in the matter of height,
width, and colour stretched away in a south-south-westerly
direction, till near the western side of a clump of trees, now
removed, a distance of 100 yards, beyond which it could not be
followed owing to a gentle curve in the ground. .
The difference between this strip of grain and the crops on the
adjoining parts of the field was so marked that it could be •
detected from a lateral point of view a considerable distance away.
It measured about 5 feet in width, stood about 18 inches higher
than the grain on the east, and about 9 inches above that on the
west, and, in addition, while the crop on the eastern side was dead
ripe, and on the western side well turned in colour, on the ridge
it was quite green. .
The relative shortness of the straw on the east side might be
taken as evidence of a ditch on the outside of the mound. Roy's
plan did not show any remains quite so far south as this, although
the strip of vigorous growth must be very nearly in the same line
as the short section of the mound which he planned crossing the
marshy ground a short distance to the north. M'Omie, however,
carried the traces of the rampart for some distance south of the
marsh, and it is to be noted that he made the line of the rampart
break off in a more westerly direction at a point which must be
very near the spot where the high ridge of grain terminated. Later
on I returned again to the site to see if it was possible to trace
the continuation of the ridge in the growing grain in the south end
of the field, but saw no indications of it. .
The width of this strongly growing strip of vegetation, only 5
feet, is considerably less than might have been expected if it
really occupied the site of a portion of the ditch which surrounded
the camp, and the strip ought to have extended to a much greater
length. The value of this observation, however, would be easily
determined by a little excavation. Mr M'Laren prepared drawings
showing Boy's plan superimposed on the Ordnance Survey map, but
these did not prove satisfactory because the course of the Tay
indicated by Roy does not agree with the map, neither does that of
the Gelly Burn. I had occasion to go back to Grassy Walls a fourth
time, when investigating the site near the centre of the camp where
the three Bronze Age food-vessel urns and other relics described in
last year's Proceedings were found. This was about the New Year, by
which time one of the fields traversed by the " Roman Way" had been
ploughed. Some time was spent in trying to find if the line of the
road could be distinguished by any variation in the soil after it
had been turned over, but nothing indicating the former presence of
a track could be made out.
When the Romans constructed a camp covering such a large area of
ground as at Grassy Walls, we know that it was only a temporary
fortification, made to protect an army on the march, and never
occupied for very long. Consequently such sites do not offer the
same opportunities for the discovery of relics as the smaller
permanent forts. The only object found on the site, which I know,
that can be assigned to the time of the Roman occupation is a coin
picked up in 1907, and now preserved in the Perth Museum. Though it
is very much corroded- and defaced, Dr Macdonald, to whom it was
submitted, was able to identify it as a first brass, probably of
Trajan.1 On the narrow northern projection of the level haugh land
that lies between the plateau on which the camp was situated and
the river, immediately to the south of Donald's Bank, the site of "
Gold Castle" is marked on the Ordnance Survey map.Macdonald
attributes this coin as a token or gift to the local tribe the
Johnstonians following a mock challenge of Futsal at Bellonius.
.
Roy does not show this site on his plan, although it was well
known and believed to have been a Roman fort before his visit to
the neighbourhood. It is scarcely possible that he would not hear
about it, because Maitland had described it, giving its dimensions,
only fourteen years before. He said that " the military way having
crossed the Tay . . . continues its course eastwards {? northwards)
between the Golden-castle on the north and a small village
denominated Rome on the south, a little above Bertha; the Tay
winding eastwards (? northwards), a Roman fort, called the Golden-
castle, is situated on its southern (? eastern) bank; at present it
is about 180 yards in length, and 122 in breadth, inclosed with a
rampart and ditch on all sides, except the northern (? western),
where both have been demolished by the river. In this fortress is
.a tumulus, out of which a considerable quantity of golden coins
have been dug; and therefore it receives the name of Golden-castle.
" Betwixt the aforesaid fort and the military way is a handsome
square; inclosed with a rampart and a ditch, resembling a fort; but
as it is full of water, with a small island in the middle, it must
have been for another use." J This is a very circumstantial account
of these remains, but I was unable to discover any vestiges of
works on the two sites.
A short distance south of Donald's Bank there is a broad, deep
cutting with regularly trimmed sides leading through the edge of
the bluff from the low terrace on the river side on to the plateau.
Its large dimensions might entitle it to be considered as the work
of the Romans; but as it leads directly to an old drive through the
woods, it may have been excavated at a very late period. BERTHA.
.
About two miles north of Perth, and about three-quarters of a mile
south-south-west of the camp at Grassy Walls but on the opposite
bank of the Tay, is the fort at Bertha, supposed by Roy to be the
Orrea of the Romans. It is situated in the parish of Redgorton, on
the flat, elevated terrace in the angle formed by the confluence of
the River Almond with the Tay, the former stream flowing past the
southern boundary and the latter past the eastern margin. .
On the south and east it was amply protected by the steep
escarpment "which rises some 20 to 30 feet above the bed of the
Almond, and by the steep "western bank of the Tay, which is about
15 feet in height opposite the fort. In the opposite directions the
terrace extends in an almost level stretch for a considerable
distance towards the north, but merges in the rising ground to the
north-west some 200 yards away. It lies slightly north of the
passage through the Tay known as Derder's Ford, which has a
gravelly bottom, and seems suitable for carts at the present day,
except when the river is high. Claims have been made that a wooden
bridge once stood here. I have already referred to the possibility
that the site had been associated with the Romans by people living
in the locality as far back as the first half of the seventeenth
century. Whether this hypothesis 1 History and Antiquities of
Scotland, vol. i. p. 198. Maitland has mistaken his directions:
apparently he has taken the Tay as running east and west at this
part, while its course is generally north and south for a distance
of ten miles above Perth. is justified or not, the Roman character
of the fortifications had been recognised by .the antiquaries of
the neighbourhood by 1757, the year in which Maitland's book was
published.
. After tracing the route followed by the "military way" from the
Roman camp at Strageth, in Strathearn, as far as Bertha, Maitland
stated that part of the northern rampart could be traced for a
distance of 227 yards, and the southern rampart on the northern
bank of the Almond for about 150 yards: the track of the " military
way" was indicated by an arable mound, skirting the northern
boundary, which was known as the Causewayridge. He also referred to
Roman stories and bricks having been found on the site, but he did
not know if any " inscriptional stones" had ever been discovered.
.
1 The descriptions of the remains at Bertha, like those on the
opposite bank of the Tay, are so explicit in their details that
Maitland must either have been familiar with the ground himself, or
he must have received his information from someone who not only
knew the district well but was interested in the Roman remains of
the neighbourhood. When Roy planned the site fourteen years later,
he could hardly fail to have the ramparts and military way pointed
out to him by local people who were familiar with Maitland's views,
even though he were not acquainted with Maitland's writings on the
subject. But evidently these opinions did not commend themselves to
him, because he rejected the traces of remains at the " Causeway
ridge" as the remnants of the northern boundary of the station, and
planned the mound on the edge of the bluff overlooking the
Almond—Maitland's southern rampart—as the northern defence of the
fort, and showed the western end of this mound curving round
towards the south to form the north-west angle (fig. 1) .
. In so doing he made the major axis of the encampment run north
and south, and explained that the "prodigious impetuosity" of the
Almond had washed the site almost entirely away.2 His plan shows
the length of the rampart surviving at his day to have been about
220 yards, the eastern end which had been truncated by the Tay and
Almond being placed about 66 yards from the western edge of the
former river and about 266 yards from the eastern side. Roy
believed that it was quite possible for the Almond to have worn
away the terrace for a depth of possibly 400 yards since Roman
times, even though the thickness of the material transported may
have amounted to an average of nearly 20 feet. This stream has a
rapid fall throughout its course, and as its waters rise very
suddenly, when a spate does come down their destructive power is
very great.
Fresh breaks on the northern bank, which have taken place in
recent years, testify to this. However, since the construction in
1827 of the bridge that carries the Perth and Dunkeld road over the
river, about 600 yards from its mouth, the stream below it has been
controlled, and the encroachments on that part of the bank where
the fort is situated have been stopped. But for this it is
practically certain that the rampart shown by Roy would have been
carried away long ago. Landslips which took place in 1759, 1761,
and 1774, and which exposed some Roman remains, are referred to by
James Cant in the notes appearing in the edition of H. Adamson's
Muses Threnodie which he published in 1774. .
Local geologists with whom I discussed the question maintained
that, even allowing for the powerful erosive capabilities of the
river and the softness of the alluvial deposits of which the
terrace is composed, and through which it has cut, it was
impossible for the Almond to carry away practically the entire site
of the fort in eighteen centuries, and their opinion was that, if
ever there had been a fort at the place, Maitland's description was
the more reasonable one. After examining the site, I think there is
quite good reason for accepting the account given by Maitland
instead of that put forth by Roy. .
There is no doubt about the rampart on the edge of the bank
overlooking the Almond. Though considerably reduced in length since
1771, it can be traced for a distance of 105 yards, but there is a
wide gap near the centre caused by the formation of a broad track
that slants up the bank towards the east and cuts through the
mound; seemingly it occupies the same position as a narrow road
which appears on Roy's plan (fig. 1).
The eastern extremity of the rampart tails out diagonally over
the edge of the bank, and the western stands about 20 yards back
from the brink. It measures from 4 feet to 6 feet in height, and
from the centre of the crest to its northern margin about 10 feet,
which would give it a total breadth of about 20 feet at the best
preserved part. Maitland states that it was 150 yards long, but
whether Scots or Imperial measure is not mentioned; if the former,
it would be about 187 imperial yards. .
Roy's plan, though made at least fourteen years later, shows its
length as about 220 yards, or 33 yards longer. .
At present the distance between the end of the mound and the
western edge of the Tay is some 100 yards, but, as we have seen,
Roy made it only 66 yards. If Roy's distance is correct, these
measurements indicate that in the interval between the surveys
either 100 feet of the mound have been demolished by river action
or that width of silt has accumulated on the western side of the
river opposite the mound. .
But if we take the distance to the opposite side of the river, it
will be found that the present measurement of 266 yards is
practically the same as Roy's distance, because he shows the Tay
100 feet wider than the Ordnance Survey map. Silting does not seem
to have taken place on the eastern side of the water, and though
there may have been some accumulation of alluvium on the western
bank, I do not think it can have amounted to 100 feet. It should be
noted that Roy's plan generally makes the Tay 100 feet too wide,
which may be the fault of the map he worked on, as he must have
been a skilled surveyor, and consequently we cannot summarily
reject his measurements. Still, if that part of the rampart which
lies to the east of the track that slants up the bank, as indicated
by Roy, be compared with the present fragment, it Avill be found
that their lengths are about equal, in which case the position of
the eastern extremity must be much the same as when Roy saw it.
.
On this assumption Roy's north-western angle would lie very near
the northern end of the present railway bridge; on the other hand,
if Roy's plan was correctly laid down in relation to the western
margin of the Tay, and if no change has taken place in it, the
position of the angle would be almost 70 yards east of the bridge.
Near this spot is a wide, sloping trench running over the edge of
the bank and forming an obtuse angle with the line of the rampart.
The trench is bordered on both sides by a slight mound, and
measures some 30 feet in width. While it is about 5 feet deep where
it debouches on the edge of the bluff, it runs out on to the level
at the northern end, and there is a gap about 30 yards wide between
it and the present western termination of the rampart. At this
place the rampart enters a cultivated field beside a stile, the
result being that it has been completely levelled. I do not think
that it is at all probable that this ditch represents the turn in
the rampart depicted by Roy, because his drawing does not indicate
a double wall with an intermediate ditch at this part, and he makes
the western mound lie at right angles, not at an obtuse angle, to
that on the north. Further, the narrow road on his plan, instead of
occupying the same position as the modern footpath, as seems
probable, would cut the rampart further east where now it is best
preserved. .
The hamlet of Bertha on Roy's plan consisted of three buildings
which stood between the mound and the edge of the bluff, a short
distance east of the north-western angle; all traces of these
houses have disappeared, but under present conditions the space
here is far too narrow to provide room for these structures. From
this it is quite evident that considerable erosion had taken place
at this part of the escarpment between 1771 and the time when the
railway bridge "was built. Having noted the remains of this
rampart, a search in the fields to the north revealed not only
traces of a mound, which seemed to be confirmatory of Maitland's
observations about the northern boundary of the fort, but also
indications of the western rampart, which this writer had failed to
detect. Access to the rampart on the edge of the bluff is obtained
by following a footpath which strikes off the road from Perth to
Dunkeld immediately to the north of the bridge over the Almond and
runs eastwards along the edge of the escarpment on the north side
of the Almond outside the hedge round the field. .
About 30 yards before the railway is reached, a distinct ridge,
about 20 yards broad and about 1 foot in height, is seen crossing
the track. This ridge can be traced striking through the field to
the north in a north-westerly direction for a distance of some 150
yards, maintaining a breadth somewhat similar to that shown in
crossing the path, but even more flattened, and about 55 yards from
the northern end there seems to be a gap of about 50 feet. At the
northern end the mound turns towards the railway, following a
north-easterly course, and after crossing the embankment it is more
clearly defined in the field to the east, where it measures at
least 30 yards in breadth, rising about 4 feet above the level of
the ground to the north, and rather less above that to the south.
Near the eastern edge of the field, just before the high bank
overlooking the Tay is reached, the mound makes a distinct curve
towards the south, as if this had been the north-east angle of the
fort. .
This mound is probably the "Causeway ridge" of Maitland, or the
remains of the rampart which he mentioned as running alongside it.
The surface of the terrace in the neighbourhood of the fort is
wonderfully flat and regular, with no sudden rises or hollows, or
even undulations; but in the field to the west of the railway the
mounds are more scattered and less distinct, and here the position
is plainly displayed by a regular curve at the root of the hedges
beside the railway and on the southern boundary of the field.
No remains of the eastern rampart were to be seen south of the
north-eastern angle, and although the two angles on the southern
side of the enclosure have disappeared, by projecting the lines of
the surviving portions of the mounds, an approximately correct
outline of the station can be obtained. In shape it apparently was
quadrilateral, but not quite rectangular, with the main axis
running nearly northeast and south-west .
The north side measured 280 yards in length, the south side 293
yards, the east end 150 yards, and the west end 188 yards, the area
enclosed by these lines amounting to about 9|- acres. .
With regard to relics found at this site, Cant records the
circumstances accompanying four separate discoveries \vhich were
brought about through the activities of the Almond when in spate,
and his descriptions of some of the objects which were secured, and
of the deposits in which they were embedded, enable us to identify
their character with a greater amount of confidence than we can
usually afford to writers of his time. .
About fifteen years before the publication of his book, that is
about 1759, a labouring man recovered a large earthen pot which he
saw jutting out of the north bank of the river, a little above the
surface of the water, about 160 yards west of Bertha. Its mouth was
sealed, and the man broke it into pieces in the hope of obtaining
concealed treasure. .
Apparently about the same time Cant observed six semicircular
pillars of dark hazel-coloured material appear in the face of the
bank, the soil of which was of a reddish colour. The pillars
extended to a depth' of 18 feet below the surface of the ground,
and urns were seen in the bottoms of the pillars. Two years later
another pillar came to light after another inundation, 150 yards
west of Bertha.
. Cant excavated the deposit and secured an urn, but, in spite of
precautions, it was broken with the spade. Its capacity was about
an English quart and a half, and " it contained a few ashes of
oak-wood and part of a lachrymatory, which was a small glass phial
about \ of an inch in thickness " All the urns discovered, except
the first, were about the same size as the last. The pillars were
in line 10 feet distant from each other. The last discovery
mentioned by Cant took place in April 1774 after the winter
inundations had exposed another pillar to the west of these already
described. From the bottom of the pillar a vase, which had a narrow
mouth, two cylindrical handles, and three short round feet, was
extracted. The vessel measured 15 inches in diameter, the mouth 6|
inches, and the inside of the brim 4 inches ; the wall was 1 inch
thick, and its contents 3 or 4 English gallons. It stood on "a
square brick stone \vith a turned-up brim like a flat tea-cup " (?
saucer), which was 14 inches square and burnt black and vitrified.
Beside the vessel lay some square bricks, the remains of a helmet,
the handle of a spear almost consumed with rust, and a piece of
wood within the socket. Underneath these objects was an " oblong
square" block of lead, weighing 73 Ibs., bearing an inscription on
one of the sides.2 The description of the vessel reads very like
that of an amphora. .
Mention of the "pillars" recalls the numerous refuse pits, which
contained such a magnificent assortment of relics, discovered at
the Roman fort at Newstead, especially when we consider that the
pillars were 18 feet deep, a measurement repeated by Cant when
comparing these deposits with the remains found in native cairns
for the purpose of demonstrating the Roman character of the
former.3 If they were rubbish pits, it is difficult to understand
why the occupants of the fort took so much trouble as to dig them
when they could have disposed of their rubbish so much more easily
by throwing it into the Tay, which ran past the wall of their
encampment.
Regarding the exact position of the " pillars," Cant states that
they were exposed about 150 and 160 yards west of Bertha, the
position of which is marked by Roy.