The Excavation Committee have been aware for some time that building development was likely in the extensive grounds of St. Mary's Abbey. In 1964 the planning authorities granted permission for a limited amount of new building work, and although this was subsequently withdrawn, it brought matters to a head. A major excavation was planned and carried out on the supposed site of the Abbey Church, and thus for the first time since its formation the Committee have undertaken work on an important medieval site. Our grateful thanks are due to Mr. Richard Chester Master for allowing the work to take place and for his keen interest during its progress. The excavations at the Abbey prevented continuation of research excavations at the Amphitheatre, but did not halt the rescue excavations at present habitual in the town, involving the following four sites. A vacant garden in Chester Street, which was scheduled for building, and was excavated by kind permission of Mr. Sutton, yielded information about both fort and town; the site of the old Gaumont Cinema at the corner of London Road and Victoria Road was excavated by kind permission of its present owners, who for the time being wish to remain anonymous, and produced interesting information about late changes in the Roman town-plan; a single trench in the garden behind Lloyds Bank, where excavation was made possible by the kind offices of the Manager, Mr. J. K. Hollinghurst, tested the line of a postulated street; while the garden of Ashcroft House, excavated by kind permission of the Pinnacle Development Company, produced, in a limited area, three mosaic pavements and part of an extensive town house. Excavation on this scale could only be carried out with large resources and the sum of nearly £3,000 was expended,1 while about 150 people gave their services in one capacity or another.