The worked stone, other than sarsen, was kindly examined macroscopically by Mr R W Sanderson of the Petrological Department of the Institute of Geological Sciences, and the following notes were compiled from his verbal comments. Apart from the polished stone axes, the majority of the rocks are not very distinctive in type, and except for a few specimens (eg S2, S15, and S20 and possibly S3, S6, and S5), it has not been possible to identify their sources.