408 KEPOBX— 1880. 



1789. 



(128) Williams, J. The Natural History of the Mineral Kingdom. 

 2 vols. 8vo. Eclin. (Wales, vol. i. pp. 274, &c., 357,410.) A 2nd edition, 



1791. 



(129) Beddoes, Dr. T. Observations on the Affinity between Basaltes 

 and Granite. Phil. Trans, vol. Ixxxi. p. 48. 



1796. 



(130) Owen, G. [? Title.] Cambrian Register (written in 1570). 



1797. 



(131) AiKiN, A. Journal of a Tour through North Wales and part 

 of Shropshire, with Observations in Mineralogy and other branches of 

 Natural History. 8vo. Lond. [See also Juurn. Nat. Phil. Ohem. Arts, 

 vol. i. pp. 220, 367 (1797), 4to.] 



1798. 



(132) KiRWAN, R. Experiments on the Composition and Proportion 

 of Carbon in Bitumens and Mineral Coal. Joiaii. Nat. Phil. Chem. Arts, 

 (4to.) vol. i. p. 487. 



1800. 



(133) Lentin, a. G. L. Briefe iiber die Insel Anglesea, vozuglich 

 iiber die dasigen Kupferbergwerke und die dazn gehorigen Schmelzwcrke 

 und Fabriken. 8vo. Leipzic. 



1802. 



(134) WiLLUJis, W. Observations on the Snowdon Mountains, &c, 

 8vo. 



1803. 



(135) Klaproth, M. H. Extracts from the third vol. of his Analyses 

 (Lead Ore of Anglesea). Phil. Mag. vol. xvii. p. 230. 



1804. 



(136) Hatchett, C. An Analysis of the magnetical Pyrites; with 

 Remarks on some of the other Sulphurets of Iron. Phil. Trans, vol. xciv. 

 p. 315. Reprinted in PJdl. Mag. vol. xxi. pp. 133, 213 (1805), and in 

 Journ. Nat. Phil. Chem. Arts, ser. 2, vol. x. p. 265, and vol. xi. p. 6 

 (1805). 



1806. 



(137) Martin, E. Description of the Mineral Bason in the Counties 

 of Monmouth, Glamorgan, Brecon, Carmarthen, and Pembroke. Phil. 

 Trans, vol. xcvi. p. 342. Reprinted in Journ. Nat. Phil. Chem. Arts, ser. 

 2, vol. xvi. p. 381 (1807) ; and vol. xix. p. 361 (1808). 



1808. 



(138) Donovan, ■ — Account of an extinct Volcano in Britain (Cader 

 Idris). Journ. Nat. Phil. Chem. Arts, ser. 2, vol. xix. p. 237. 



(139) Mushet, D. Analysis of various Kinds of Pit-coal. Phil. Mag. 

 vol. xxxii. p. 140. (Wales, pp. 140, 142.) 



