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(517) Beistow, H. W. On the Lower Lias or Lias-Couglomerate of a 

 part of Glamorganshire. Quart. Jotim. Geol. Soc. vol. xxiii. p. 190. 



(518) Davidson, T. A Monograph of the British Fo.ssil Brachio- 

 poda. Part VII. No. ii. The Silurian Brachiopoda. Palceontograph. Soc. 



4to. Loud. 



(519) Davies, D. C. On a Bed of Phosphate of Lime, N.W. of Llan- 

 fyllin, North Wales. Geol. Mag. vol. iv. p. 251. 



(520) ■ Bala and Hirnant Limestones at Mynyd Fron Frys in 



Glen Ceiriog. Ibid. p. 283. 



(521) Dawkins [Prof] W. B. On the Dentition of Rhinoceros 

 leptorhinus, Owen. Quart. Journ. Geol. Soc. vol. xxiii. p. 213. (Wales, 

 p. 219.) 



(522) Duncan [Prof.] P. M. On the Madreporaria of the Infra-Lias 

 of South Wales. Ilnd. p. 12. 



(523) A Monograph of the British Fossil Corals. Second Series. 



Part IV. No. 1, Corals from the Zones of Ammonites Planorbis and A. 

 Angulatus in the Liassic Formation. (S. Wales, pp. 7-23, 27-35.) Palce- 

 ontograph. Soc. 4to. Lond. 



(524) Forbes, D. Researches on British Mineralogy. Phil. Mag. ser. 

 4, vol. xxxiv. p. 329. (Gold, Wales, p. 338.) 



(525) The Microscope in Geology. Pop. Sci. Bev. vol. vi. p. 



355. 



(526) Green [Prof] A. H. On the Lower Carboniferous Rocks of 

 North Wales. Geol. Mag. vol. iv. p. 11. 



(527) Griffiths, Rev. H. Mynydd Troed, Breconshire. Trans. Wool- 

 hope Nat. Field Club for 1866, p. 162. 



(528) Harkness, Prof R. Diplograpsus teretiusculus in the Upper 

 Llandovery of Haverfordwest. Geol. Mag. vol. iv. p. 286. 



(529) Hicks, Dr. H. Discovery of a Hyfena-den near Laugharne, 

 Carmarthenshire. Ibid. p. 307. 



(530) and J. W. Salter. Second Report on the ' Menevian 



Group ' and the other Formations at St. Davids, Pembrokeshire. Bep. 

 Brit. Assoc, for 1866, p. 182. 



(531) Maw, G. On the Distribution beyond the Tertiary Districts of 

 White Clays and Sands subjacent to the Boulder Clay Drifts. Geol. Mag. 

 vol. iv. pp. 241, 299. 



(532) Shells on the Great Ormeshead. Ibid. p. 377. 



(533) Mello, Rev. J. M. Note on the Contents of the Pockets in the 

 Carboniferous Limestone at Llandudno. Ibid. p. 527. 



(534) The Kitchen Middens at Llandudno. Ibid. p. 533. 



(535) Moore, C. On Abnormal Conditions of Secondary Deposits 

 when connected with the Somersetshire and South Wales Coal-basin ; and 

 on the age of the Sutton and Southerndown Series. Quart. Journ. Geol. 

 Soc. vol. xxiii. p. 449. 



(536) Moore, T. J. Mammalian Remains from Cefn Cave. Part I, 

 Proc. Liverpool Geol. Soc. session 8, p. 50. 



(537) RiCKETTS, Dr. C. On the Outlier of Carboniferous Limestone 

 near Corwen, North Wales. Ibid. p. 3. 



(538) Salter, J. W. A Monograph of British Trilobites. Part IV. 

 (Pp. 177-216). Palceontograpli. Soc. 4to. Lond. 



(535) On the May Hill Sandstone. Geol. Mag. vol. iv. p. 201. 



(540) Bala and Hirnant Limestone. Ibid. p. 233. 



(541) and H. Hicks. On a new Lingulella from the red Lower 



