NEWMARKET-HEATH, (Suffolk and Cambridgeshire) which surrounds the T. has that running through it, which the vulgar call
Devil's-Dyke, though cast up by the hands of men to be the boundary of the 2 Saxon Kms. of the East-Angles and Mercians.
The gentry call it Rech-Dyke, from Rech a little T. near the heath, where it begins.