. Bulletin of the British Museum (Natural History), Geology. 66 J. T. TEMPLE. Fig. 1 Ordovician-Silurian boundary outcrop areas in Wales and the Welsh Borderland. 1, Haver- fordwest: la, Strahan et al. 1914; lb, Cocks & Price 1975. 2, Llandeilo, Williams 1953. 3, 4, Llandovery: 3a, Jones 1925; 3b, Jones 1949; 4, Cocks et al. 1984. 5, Garth: 5a, Andrew 1925; 5b, Williams & Wright 1981. 6, Builth Wells, Jones 1947. 7, Abbey-Cwmhir, Roberts 1929. 8, 9, Rhayader: 8, Lapworth 1900; 9, Kelling & Woollands 1969. 10, Rhayader to Abergwesyn, Davies 1928. 11, Abergwesyn to Drygarn, Davies 19
. Bulletin of the British Museum (Natural History), Geology. 66 J. T. TEMPLE. Fig. 1 Ordovician-Silurian boundary outcrop areas in Wales and the Welsh Borderland. 1, Haver- fordwest: la, Strahan et al. 1914; lb, Cocks & Price 1975. 2, Llandeilo, Williams 1953. 3, 4, Llandovery: 3a, Jones 1925; 3b, Jones 1949; 4, Cocks et al. 1984. 5, Garth: 5a, Andrew 1925; 5b, Williams & Wright 1981. 6, Builth Wells, Jones 1947. 7, Abbey-Cwmhir, Roberts 1929. 8, 9, Rhayader: 8, Lapworth 1900; 9, Kelling & Woollands 1969. 10, Rhayader to Abergwesyn, Davies 1928. 11, Abergwesyn to Drygarn, Davies 1926. 12, Pumpsaint, Davies 1933. 13, Llansawel, Drew & Slater 1910. 14, Llangranog, Hendricks 1926. 15, Llanidloes, Jones 1945. 16, Plynlimon, Jones 1909. 17, Machynlleth, Jones & Pugh 1916. 18, Towyn and Abergynolwyn, Jehu 1926. 19, Corris, Pugh 1923. 20, Dinas Mawddwy, Pugh 1928. 21, Llanuwchllyn-Llanymawddwy, Pugh 1929. 22, Bala: 22a, Elles 1922; 22b, Bassett et al. 1966. 23, Cerrigydrudion, Marr 1880. 24, Conwy, Elles 1909. 25, Shelve area, Whittard 1932. 26, 27, Welshpool: 26, Wade 1911; 27, Cave 1965. 28, Meifod, King 1928. 29, Lake Vyrnwy, King 1923. 30, Berwyns: 30a, Wedd et al. 1929; 30b, Brenchley & Cullen 1984. 31, Llansantffraid ym Mechain, Whittington 1938. 32, Llangollen: 32a, Groom & Lake 1908; 32b, Hiller 1980. 33, Corwen, Lake & Groom 1893. 34, Llangollen, Wills & Smith 1922. 35, Llangollen, Wedd et al. 1927. 36, Mynydd Cricor, Smith 1935. 37, Criccieth, Roberts 1967. 38, Anglesey, Greenly 1919. 39, W. Berwyn, A. W. A. Rushton & J. T. Temple (unpublished). 40, Aberystwyth and Machynlleth, Cave & Hains Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)
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