Plate 13.11 Three-dimensional plot of magnetic data acquired from the La Surveillante(1797) wreck-site, Bantry Bay,
County Cork, Ireland. (Courtesy of the Centre for Maritime Archaeology, University of Ulster, Coleraine and the Applied
Geophysics Unit, National University of Ireland, Galway)Plate 13.12 Top to bottom: a Geometrics G-881 caesium magnetometer (white tow-fish), an EdgeTech 272–TD side-
scan, a GeoAcoustics side-scan and an Imagenex 885 side-scan sonar. (Photo: Rory Quinn)9781405175913_7_Plates 5/7/08 6:28 PM Page 14