Plate 15.1 The diver is clasping a site-grid with his feet. Maintaining neutral buoyancy enables the diver to keep clear
of the archaeology while using one hand to excavate with a trowel and the other to remove spoil with an airlift. (Photo:
Kester Keighley)9781405175913_7_Plates 5/7/08 6:28 PM Page 21