Andrew DavidAndrew David, BSc, PhD, FSA: for his doctoral work conducted excavations at Mesolithic sites on The Nab Head and at Daylight Rock, Caldey Island, as well as field reconnaissance in north Pembrokeshire, published in 2007. He worked for many years at te Ancient Monuments Laboratory, London, specialising in geophysical survey, retiring from English Heritage in 2011 as Head of Archaeological Science and Archaeological Archives. He has since returned to interests in early prehistory and lithic collections, mostly in Wales and Sussex. Read More Read Less