THE FOREBUILDINGS AND BARBICAN.

The article describes the forebuildings and barbican in the Colchester Castle in Essex, England. The architectural history of the castle is divided into three periods. During Period VIIA, a rubble wall with an outer face lined with the vertical foundation of the gateway was identified. The nature of this foundation is said to depict the intention to support light timber superstructure. The contemporary ground level was marked by a second structure found in Period VIIB, which is described with tile-built wall faces. During the VIIIB period, the addition of large forebuilding or barbican strengthened the entrance of the castle, which in turn replaced the VIIB structure.