WORKS ON GEOLOGY, MINERALOGY, AND PALEONTOLOGY OF WALES. 42 1 



1857. 



(348) Fairbaien, W. On the Comparative Valae of various kinds of 

 Stone, as exhibited by their Powers of Resisting Compression. Mem. Lit. 

 Phil. Soc. Manchester, ser. 2, vol. xiv. p. 31. 



(349) Forbes, D. On the Chemical Composition of the Silurian and 

 Cambrian Limestones. Phil. Mai/, ser. 4, vol. xiii. p. 365 (Wales, p. 366). 



(350) Hexwood, W. J. Notice of the Copper Turf of Merioneth. 

 Edin. New Phil.Jour)i. ser. 2, vol. v. p. 61. 



(351) Phillips, Prof. J. Report on Cleavage and Foliation in Rocks, 

 and on the Theoretical Explanations of these Phenomena. Part 1, Eej). 

 Brit. Assoc, for 1850, p. 369. 



(352) Salter, J. W. On some new Palaeozoic Star-fishes. Ann. Nat. 

 Hist. ser. 2, vol. xx. p. 321. 



(353) Symonds, Rev. W. S. Stones of the Valley. 8vo. Loud. 



1858. 



(354) Anon. [J. R. G(regoi'y?)] Letter on Gold in Wales. Geolo- 

 gist, vol. i. p. 159. 



(355) Ansted, Prof. D. T. Letter on Gold in Wales. Ibid. p. 154. 



(356) Bevan, Dr. P. G. On the Geology of the Beaufort and Ebbw 

 Vale District of the South Wales Coal-field. Ibid. pp. 49, 124. 



(357) ■ Plant from the Coal-measures of the Elled Patch. Ibid. 



p. 448. 



(358) On the Marine Shells of the South Wales Coal-basin. 



Hid. p. 505. 



(359) Jukes, J. B. Notes on the Old Red Sandstone of South Wales. 

 Pep. Brit. Assoc, for 1857, Sections, p. 73. 



(360) Morris, Prof. J. British Fossils, stratigraphically arranged. 

 1. Palseozoic System. Geologist, vol. i. pp. 138, 189, 233, 279, 319. 



(361) Ramsay, Prof. A. C. The Physical Structure of Merionethshire 

 and Caernarvonshire. Geologist, vol. i. p. 169. 



(362) Readwin, T. A. Letter on Gold in Wales. Ibid. p. 159. 



(363) Roberts, G. E. The Geology of Llandudno. Ibid. p. 443. 



(364) SoRBY, H. C. On some Facts connected with Slaty Cleavage. 

 Pej). Brit. Assoc, for 1857, Sections, p. 92. 



(365) On the Microscopical Structure of Cx-ystals, indicating 



the Origin of Minerals and Rocks. Quart. Journ. Geol. Soc. vol. xiv. p. 

 453 (? Wales, p. 485). 



(366) Voelcker, Dr. A. On the Use of Lime, Marl, and Shell-sand in 

 Agriculture, with special reference to the Soils in the West of England. 

 (Analyses of Silurian Limestone, Pembrokeshii'e, pp. 225, 230 ; of Moun- 

 tain Limestone, S. Wales, p. 227 ; of Lias Limestone, Glamorganshire, p. 

 228 ; of Caradoc Sandstone and Mountain Limestone, Pembrokeshire, pp. 

 229, 230.) Journ. Bath W. Engl. Soc. ser. 2, vol. vi. p. 220. 



1859. 



(367) Bevan, Dr. A Week's Walk in Gower. 



(368) On the Anthracite-coal of South Wales. Geologist, vol. ii. 



p. 75. 



(369) BiGSBY, Dr. J. J. An Inquiry into the Sedimentary and other 

 External Relations of the Palaeozoic Fossils of the State of New York. 

 Quart. Journ. Geol. Soc. vol. xv. p. 251. (Reference to Wales, &c., pp. 

 253-75, 280-93, 315-35.) 



