A HISTORY OF KENT easily distinguished, but the work appears to have consisted of a deep fosse or moat, with the ballast thrown on both sides to form two ram- parts. The sections E-F and L-M show a second ditch and a third rampart, and about the section G-H the ditch is broader and contains water ; the inner rampart about sections A-B and E-F takes the form of ' mounts,' being raised rather higher than other portions of the rampart, but these irregularities are probably not part of the original plan. The only opening is on the south-east, and is presumably the original entrance. Frittenden : Knox Bridge Castle Bank. — This small strong- hold, otherwise known as Knocks or Nocks Bridge Castle, stands upon low ground, with the land on the north generally of about the same Knox Bridge Castle Bank, Frittenden. height for some miles, while the land on the south is considerably higher. The position is slightly defended on the south by the stream, but otherwise has no natural protection. The entrenchments consist of a fosse, with the ballast thrown inward to form a ramparted keep, the fosse containing water of no great depth, once probably much deeper, supplied from the stream by means of a channel now almost filled up. There is no trace of a courtyard or further enclosure, but such might once have existed, protected either by a stone wall or earthwork. Knox Bridge Castle. — See Frittenden. QuEENBORouGH. — There was here a group of three works as shown on plan, but of the more important, one (Sheppey Castle) has been terribly mutilated, and the other (the ' camp ') appears to have been entirely obliterated. The least important of the three is shown by the 408
