SURVEYOR_ID,NAME,MARKER_GIF 1,ANCIENT MONUMENTS LABORATORY,EHicon.gif 2,BARTLETT-CLARK CONSULTANCY, 3,CHALLANDS A, 4,COTT P J, 5,GEOPHYSICAL SURVEYS OF BRADFORD,GSBicon.gif 6,GEOQUEST ASSOCIATES,GQAicon.gif 7,MARSHALL A, 8,NORTHAMPTONSHIRE ARCHAEOLOGY, 9,OXFORD ARCHAEOTECHNICS,OAicon.gif 10,STRATASCAN, 11,THE CLARK LABORATORY, 12,TRUST J, 13,"UNIVERSITY OF BRADFORD, DEPT. OF ARCHAEOLOGICAL SCIENCE", 14,"UNIVERSITY OF DURHAM, DEPT. OF ARCHAEOLOGY", 15,UNIVERSITY OF WALES COLLEGE OF CARDIFF, 16,ARCHAEOLOGICAL SERVICES WYAS,ASicon.gif 17,MINISTRY OF WORKS,EHicon.gif 18,CENTRE FOR ARCHAEOLOGY,EHicon.gif 19,TIMESCAPE ARCHAEOLOGICAL SURVEYS,TSicon.gif 20,TIMESCAPE SURVEYS,TSicon.gif 21,TIMESCAPE RESEARCH SURVEYS,TSicon.gif