Navigatio Brendani 1.10:

    occurrērunt obviam, sīcut exāmen apum, ex dīversīs cellulīs, frātrēs.

    The cells for Irish monks at this period seem to have been individual one-room huts, built of branches or (in the west where wood was scarce) of dry stone. This is an artist's imagining of the monastic community, based on excavations at Reask, County Kerry. 

    See T. Fanning, “Excavation of an Early Christian cemetery and settlement at Reask, County Kerry," Proceedings of the Royal Irish Academy 81C (1981) 67–172.

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