66 LIST OF WORKS ON GEOLOGY, &C. 



1779. 



17. WoULFE, P. Experiments on some Mineral Substances. 

 Phil. Trans. f vol. Ixix, (Part i), p. 11. [Cornish Clay]. 



1781. 



18. Jars, M. G. Voyages Metallurgiques, tome 3, Uo. Paris, 

 (Cornwall, pp. 86, 186). 



1782. 



18a. Lindenthal, — von. Nachricht von mineralien und 

 bergwerken in England, besonders Cornwallis und Derbishire. 

 Klijpstein's Mineral Brief wedisel, 2 Band, p. 1. 



1786. 



18b. Hawkins, J. Einige mineralogische nacbrichten von 

 Cornwall, und den dortigen Kupfererzen. CreUs Beytrage zu den 

 Chemischen Annalen, 2 Band, p. 43. English edition in 1792. 



1787. 



19. Klaproth, M. H. Observations relative to the Mineral 

 and Chemical History of the Fossils of Cornwall. Translated by 

 Dr. I. G. Grosche. 8vo. Lond. 



1797. 



20. Maton, W. G. Observations relative chiefly to the 

 Natural History, &c., of the Western Counties of England. 2 vols. 

 Svo. Salisbury. 



1 1797, 1802. 



21. Eashleigh, p. Specimens of British Minerals, selected 

 from the Cabinet of P. K, with general descriptions of each 

 article. 2 vols., 4to. Lond. 



1800. 



22. Taylor, J. Sketch of the History of Mining in Devon 

 and Cornwall. Phil. Mag., vol. v, p. 357. 



1801. 



23. Chenevix, R. Analysis of the Arseniates of Copper and 

 of Iron (described in the paper by Count de Bournon) ; likewise 

 an Analysis of the red octaedral Copper Ore of Cornwall ; with 



