Cylchgronau Cymru

centuries A.D.; but its interpretation requires the assistance of a variety of literary sources. It should also be stressed that the total amount of archaeological material available is still only slight, and the inferences drawn from it must therefore be extremely tentative.1 University College, Cardiff LESLIE ALCOCK APPENDIX Excavation reports on settlements for which a date in the fifth to seventh centuries A.D. is claimed or proven are listed below. For a discussion of the reasons for accepting or rejecting this date for individual sites, see L. Alcock, 'Pottery and settlements in Wales and the March, A.D. 400- 700' in I. Ll. Foster and L. Alcock (edd.), Culture and Environment (1963), pp. 281-302. A. Settlements for which this date is proven, or probable. Carreg-y-llam, Caern. A. H. A. Hogg, 'A fortified round hut at Carreg y Llam near Nevin', AC, CVI (1957), 46-55. Degannwy Castle, Caern. A W 62, 36. Dinas Emrys, Caern. H. N. Savory, 'Excavations at Dinas Emrys, Beddgelert, Caernarvonshire, 1954-56', AC, CIX (1960), 13-77. Dinas Powys, Glam. L. Alcock, Dinas Powys: an Iron Age, Dark Age and early Medieval Settlement in Glamorgan (Cardiff, 1963). Garn Boduan, Caern. A. H. A. Hogg, 'Garn Boduan and Tre'r Ceiri', AJ, CXVII (1960), 1-39. Pant-y-saer, Angl. C. W. Phillips, 'The excavation of a hut group at Pant-y-saer in the parish of Llanfair-Mathafarn- Eithaf, Anglesey', AC, LXXXIX (1934), 1-36. B. Settlements for which this date has been claimed, but is improbable or unacceptable. Breiddin, Mont. B. H. St. J. O'Neil, 'Excavations at Breiddin Hill Camp, Montgomeryshire, 1933-35', AC, XCII (1937), 86-128. Castell Odo, Caem. L. Alcock, 'Castell Odo an embanked settlement on Mynydd Ystum, near Aberdaron, Caernarvon- shire', AC, CIX (1960), 78-135. 1 Contrast the fuller and firmer inferences which may be based on the more abundant Irish material V. B. Proudfoot, The economy of the Irish rath', Medieval Archaeology, V (1961). 94-122.