 In September 1922 , Filkins once again began excavating at the site , this time with the aid of a resident of <unk> , Charles Gilbert . Their project was financed through grants provided by the British Association and the Society of Antiquaries , with Filkins noting that at the time of its commencement , " a miniature jungle " had grown up around the site which had to be cleared . Excavation continued sporadically until at least 1926 . Human remains were discovered , and placed into the possession of Sir Arthur Keith of the Royal College of Surgeons . This excavation revealed all the existing sarsens surrounding the monument , a number of which had previously been buried beneath earth . The stones of the dolmen were <unk> up with concrete foundations where Filkins deemed it necessary . Although Filkins ' excavation was comprehensive , it did ignore stone holes , packing stones , and their relationship to the mound . In 1998 , Ashbee noted that while from " a present @-@ day perspective , it is possible to see shortcomings [ ... ] in terms of the general standards of the early part of this century , there is much to <unk> . " 
