Comprising the Counties Cambrigdeshire, Norfolk, Suffolk, Essex, Middlesex, Herfordshire, and Bedfordshire, less the following: (I) Colchester. (II) Purfleet and Rainham Rifle Ranges, and (when occupied by Foot Guards) the Guards' Barracks at Warley, which are under the London Area. (III) That portion of Essex in the Chatham Area from Grays Thurrock Station along main road to Stanford-le-Hope – thence north side of railway via South Benfleet to Southend borough boundary – thence a line drawn north-east to Lower Edward's Hall – thence road Eastwood to Harp House – thence a line south-east to Southchurch Lawn – thence a line due north to River Roach – thence along south bank of River Roach and south bank of River Crouch to Foulness Point