Bos Swallet was excavated initially by pupils of Sidcot School, first as a cave dig and later as an archaeological dig. Subsequent excavations by Dr. H Taylor in 1956-8 on behalf of the Society were interpreted as showing the site had been disturbed by mining in historic times and the archaeological finds were re-deposited. Re-examination of the records confirms suspicions that this was not so. Two main phases of activity were present, a late Beaker occupation and a ‘boiling site’, most probably of Middle Bronze Age date, with minor Early Neolithic activity also.