OF THE STRENGTH OF THE CITY
On the east stands the Palatine tower, a fortress of great size and strength, the court and walls of which are erected upon a very deep foundation, the mortar used in the building being tempered with the blood of beasts. On the west are two castles strongly fortified; the wall of the city is high and thick, with seven double gates, having on the north side towers placed at proper intervals. London formerly had walls and towers in like manner on the south, but that most excellent river the Thames, which abounds with fish, and in which the tide ebbs and flows, runs on that side, and has in a long space of time washed down, undermined, and subverted the walls in that part. On the west also, higher up on the bank of the river, the royal palace rears its head, an incomparable structure, furnished with a breastwork and bastions, situated in a populous suburb, at a distance of two miles from the city.