Memoirs on remains of ancient dwellings in Holyhead Island, mostly of circular form, called Cyttiau'r Gwyddelod, explored in 1862 and 1868
Subtitle: With notices of the relics found in recent excavations there, and also in various parts of Anglesey
Publisher: printed for the author, etc., etc.
Published: 1871
Place of publication: London
Language: eng