LIST OF WORKS ON GEOLOGY, &C. 81 



222. TooKE, A. W. The Mineral Topography of Great 

 Britain. Cornwall. Ihid, p. 253. 



1837. 



223. Anon. Cornwall. "Geological Character," "Natural 

 Curiosities." Penny Cydopcedia, vol. viii, pp. 30, 37, Fol. Lond. 



224. BOASE, Dr. H. S. Additional Eemarks on Mr. Hopkins's 

 "Kesearches in Physical Geology." Phil. Mag., Ser. 3, vol. x, 

 p. 14. 



225. On the Composition and Origin of Porcelain 



Earth. Ihid, p. 348. 



226. Burr, F. Observations on the Theory of the Formation 

 of Mineral Veins. Mining Rev., No. 9, p. 60. Continued under 

 the title " On Metalliferous and Mineral Deposits, their General 

 Structure, and Apparent Laws of Developement." Ihid, No. 10, 

 p. 165. 



227. De la Beche, [Sir] H. T, On certain Phsenomena 

 connected with the Metalliferous Veins of Cornwall. Rep. Brit. 

 Assoc, for 1836, Trans, of Sections, p. 83. 



228. (Lettre...sur les systemes de fissures parall^les 



que Ton observe dans les roches du Cornouailles). Bthll. Sac. Geol. 

 France, t. viii, p. 73. 



229. Fox, E. W. On Voltaic Agencies in Metalliferous Veins. 

 Rep. Brit. Assoc, for 1836, Trans, of Sections, p. 81. 



230. On Mineral Veins. Uli Ann. Rep. Roy. Corn- 

 wall Polytech. Soc, p. 81, {and Phil. Mag., Ser. 3). 



231. Substance of a Communication on the Tem- 

 perature of some Mines in Cornwall and Devonshire, made to the 

 Eoy. Geol. Soc. Cornwall. Phil. Mag., Ser. 3, vol. xi, p. 520. 



232. Kenwood, J. W. A Lecture on the Phenomena of 

 Metalliferous Veins ; delivered at the Penzance Institution. Edin. 

 Neiv Phil. Journ., vol. xxii, p. 152. 



233. On the Electric Currents observed in some 



Metalliferous Veins. Ihid, p. 270. (Corrected from the Annals 

 of Electricity, and reprinted from the Annals of Electricity, with 

 Additions, in Mining Rev., No. 10, p. 214). 



234. Sowerby, G. B. Oxydulous Copper. Mo.g. Nat. Hist., 

 Ser. 2, vol. i, p. 168. 



235. Thomas, E. Eemarks on a Section presented by the 



