AN APPRAISAL OF THE PROBLEMS INVOLVED IN THREE-DIMENSIONAL GROUND PENETRATING RADAR IMAGING OF ARCHAEOLOGICAL FEATURES

There are a number of problems that are due to the physics involved in the ground penetrating radar (GPR) technique which result in the recorded data giving a distorted representation of the true subsurface structure. Many of these problems are reduced by the experience of the person interpreting the data. This paper is an attempt to remove some of the subjectivity from this process by considering how the distortion in the data could be reduced by applying a migration routine. The amount of data, and the time needed to collect it, place a restriction on the use of the migration process to two dimensions only and result in a compromise approach to the use of GPR. This compromise may, however, result in better integration of GPR with the other geophysical techniques available.     

EDWIN SANDYS,ARCHBISHOP OF YORK 1577–88, ‘STIFF-NECKED,WILFUL AND OBSTINATE’: CONFLICT IN THE ELIZABETHAN CHURCH

Abstract

This article examines the events that, as legend has it, resulted in the foundation of Balliol College (c. 1263) by John (I) Balliol (d. 1268). The Balliol family had long been at odds with successive bishops of Durham over certain lands in Sadberge, the homage of which the bishops believed they were owed. John (I) began his struggle just after his inheritance in 1229 and the dispute reached its height in 1255–60, at which time an intense argument broke out. Other factors, including his actions whilst serving as one of Henry III's English representatives in the Scottish government (1251–55), led to Balliol's ultimate submission to Bishop Kirkham (d. 1260) at Durham Cathedral in 1260 and the foundation of Balliol College at Kirkham's instance. The theory remains, as one historian argues, that Balliol's penance was to give the long delayed homage to the bishop for these lands and not to establish Balliol College. However, there are no surviving records of homage and other possibilities remain, including perhaps that the penance called for Balliol's youngest son, John (II), the future King of Scotland, to be educated at a Durham school.