the vestibule was probably a prison, and the chapel was situated above the staircase.
The walls surrounding this castle are of great extent, and are a fine illustration of the style of the thirteenth century, and will be referred to further on.
A greater number of Roman buildings seem to have survived the ravages of the Norsemen in England than in Northern Gaul. At Porchester and Pevensey the old Roman walls and towers, with the distinctive small dressed blocks of stone bound together with bands of thin tiles, still remain. These old walls, built in Roman times, have since
Fig. 6.—Colchester Castle. Exterior.
witnessed the innumerable descents of the Saxons, and the landing of the Normans under the Conqueror. They have played an important part in the wars between the Norman kings and their subjects; they have seen the sea retire for miles from their walls; and they still subsist, in all their
