⁵⁷Heraughty, Patrick. Inishmurray: Ancient Monastic Island. Dublin: O'Brien, 1982. 47.
Edible seaweeds such as crannach, and carrigeen moss, known on Inishmurray as "fúdar," were collected, dried and sold in Sligo town. The drying process required stone cairns with the seaweed enclosed with smoldering coals.