Stable isotopes get personal in this analysis of burials at a medieval cathedral. Compared with the local meat-eating rank and file, those people identified as bishops consumed significantly more fish and were incomers from the east. These results, while not so surprising historically, lend much increased confidence that isotope analysis can successfully read the status and mobility of individuals in a cemetery.

ARCHAEOLOGICAL BACKGROUND T he two camps at Dullatur (FIG. 1), near Cumbernauld, lie on a north-facing slope, some 400 m south of the Antonine Wall, between Westerwood and Croy Hill. The excavation was undertaken in 1998 by Headland Archaeology 1 in advance of the development of the site for housing. The work was conducted in accordance with the detailed specification prepared by the West of Scotland Archaeology Service (WoSAS) on behalf of North Lanarkshire Council. The area of the development comprised two zones: one coincident with the site of the two camps and a smaller area (not illustrated) to the northwest. The inner camp lies within the outer, sharing part of the western side. The camps were first seen as cropmarks from the air by St Joseph in July 1961 but it was only after several years of photography that the evidence was clear enough for the site to be positively identified as Roman. 2 The southeast side of the outer camp, about 230 m long, the east and south corners, and parts of the northeast and southwest sides have been visible at various times. The northern part of both camps disappears underneath The Lane, the modern track, southeast of Dullatur House. This does not allow the overall size and area of the two camps to be determined with certainty. Trial excavation by Keppie in 1975-76 determined the location and the relationship between the two camps. The inner, smaller camp clearly re-used the southwest ditch of the outer, and consideration of the topography led him to suggest that the area of the camps was 1.7 and 4 hectares respectively. 3 The area of the camps is significant in the overall assessment of any possible relationship with the Antonine Wall and will be discussed later. EXCAVATION OBJECTIVES AND STRATEGY The objectives of the WoSAS specification were to provide clarification with regard to the dating of both camps, their relationship to the Antonine Wall, and the identification and excavation of any features in the area to the northwest of the camps. The recovery of dating evidence was given a high priority and dictated the fieldwork strategy which was prescribed in the specification. The excavation of the camps was preceded by a magnetometer survey. A metal-detector survey was also undertaken, prior to and during excavation of the ditch sediments. The methodology and sample sizes for the excavation were set in the specification. A 25 per cent sample (6,250 m 2) was specified for the area of the two camps. Work was concentrated on the 1