Page:VCH Kent 1.djvu/376

Rh The material used in these prehistoric monuments is sarsen stone, or greywethers, a species of tough sandstone, which occurs naturally scattered about the surface of certain parts of the North Downs and elsewhere. This stone was also largely used at Stonehenge. As far as the Kentish megalithic structures are concerned, the stone does not seem to have been artificially shaped, except perhaps in one instance, but such blocks as were of suitable size and shape seem to have been selected and brought together. The following are the chief Kentish examples:

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