Facsimile copies of Lewis Morris' survey of the coast of West Wales, 'Cambria's Coasting Pilot' together with twenty nine additional copies of the charts from the volumes, [1737 - 1742].
These copies were made from the originals in their custody by the United Kingdom Hydrographic Office, Taunton.
[See also Marine Cartography in Britain, a history of the sea chart to 1855, Adrian H.W. Robinson, Leicester University Press, 1962].