The Domesday Book has long been used as a source of information about legal and economic matters, but its bearing upon the geography of medieval England has been comparatively neglected. The extraction of geographical information involves problems of interpretation, since it necessitates an analysis into elements and their subsequent reconstruction on a geographical basis. But when this has been done, new materials for making a general picture of the relative prosperity of different areas are available as well as data for the comparative study of varying geographic and economic factors. The...