Acknowledgments

I should like to record my indebtedness to the following people for the help they have given me in my work on Roman Purbeck stone.

To any I have inadvertently left out, my apologies.

The coastal outlines used in the maps were obtained from the Coastline Extractor provided by the United States National Oceanic and Atmospheric Administration at http://www.ngdc.noaa.gov/mgg/shorelines/shorelines.html and are stated by NOAA to be in the public domain. Owing to differences of geographic projection between these data and the British National Grid, there may be small errors in the placement of some points on the maps.

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