[Illustration: 36·2ᵈ. _The Remains of the_ Castrensian Amphitheater _at Richborough Castle. Oct. 7. 1724._ _Stukeley. delin:_ _E. Kirkall. Sculp:_] [Sidenote: TAB. XCVII.] [Sidenote: Amphitheatre] [Sidenote: TAB. XXXVI. 2d Vol.] Richborough castle, as now called, was the fort as it were to this city, and station of the garrison, which was to watch and defend the port and sea-coast hereabout; or rather one of those castles built upon the _littus Saxonicum_, in the time of Theodosius: it is a mile off Stanar and Sandwich, situate upon the highest elevation near hand, and being the only small part of a bold shore in all this bay: the river runs at the foot of it, ———— _arvaque & urbem Littore diductam angusto interluit æstu._ +Virg.+ Æn. iii. It is a most noble remnant of Roman antiquity, where in later times of their empire the _Legio_ II. _Aug._ was quartered: the walls on three sides are pretty intire, and in some places still about twenty-five or thirty foot high, without any ditch: the side next the sea being upon a kind of cliff, the top of the wall is but level with the ground: beside, at the east angle the wall descends to another slope just upon the river, which seems to have been in the nature of an outwork, or gradual ascent into the castle: the ground on the inside is pretty much raised. In the middle of the north-east side there is a square work jutting out from the wall, which seems to have been an oblique[115] gate to enter at, for those that came from the water side; and it is not unlikely that gap on the north-west side was another gate: it was a square CV. paces one way, CL. the other; according to the Roman method of making camps, a third part longer than their breadth. There is a foundation within, which has caused many words among the Kentish antiquaries; seems to have been a _Pharos_, or lodging for the commanding officer, a _prætorium_: there are foundations of several apartments, the walls monstrously thick and strong. It is manifest to any one that seriously contemplates the ruins of the walls in divers places, that this castle was destroyed by great violence and industriously; I guess, by the Saxons immediately after the Romans left the island, when they could more boldly make descénts upon the coast: the reason why, is evident from the intent of these castles: upon the eastern corner, especially, great piles of wall lie one upon another like rocks: in other places cavities are hewn out of its thickness, that would make good lodging-rooms: the manner of the composition of the walls is seven courses of small hewn stone, which take up four Roman feet: then two courses of Roman brick, which are white, like the brick in the isle of Ely. I observe all the brick about Sandwich to be of the same colour, made of whitish clay. The walls are twelve foot thick: the inward body thereof is made of flint and excessive hard mortar. Sandwich bears directly south. Dr. Holland talks of a