1957 First Edition octavo 256pp, 13pls + 17 figs.  Red cloth spine faded otherwise very good condition.

The book discusses Welsh legends of lost lands, such as the mythical kingdom of Cantre’r Gwaelod in Cardigan Bay, and examines them in the context of post-glacial sea-level changes and coastal erosion.

It is considered one of the earliest works to connect folklore (geomythology) with plausible geological meanings, exploring how ancient memories of real environmental changes could have been preserved through oral tradition for thousands of years.