In 1937 the writer described in ANTIQUITY a series of cottages—the dwellings of crofters—in Llanychaer and adjacent parishes of northern Pembrokeshire. These were two-roomed stone structures with a central doorway on one side: the door opened into the living room where the most striking sight was the great open fireplace at the gable end, the chimney structure of which projected into the room. A number of such dwellings has recently been examined in a coastal district of the same county to the south of Milford Haven, in Castle-martin parish. These show variations in the character and plan of the open fireplace, which are of interest, and probably also of cultural significance; they also provide fresh evidence of the hearth-dairy association manifested at Llanychaer.