178 DAU 



4-. An Essay on the Geology and Chemical Phaenomena of Vol- 

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5. Revue des principales Collections geologiques en Angleterre. 

 Zeitschr. f. Mineral. 1829, Jul. p. Tl.Feruss. Bull. 1830, XX. 

 p. 376. 



6. A Description of Active and Extinct Volcanos, with Remarks 

 on their Origin, their Chemical Phaenomena, and the Character 

 of their Products, etc. Lond. 1826, 8. fig. 2nd ed. greatly en- 

 larged. Lond. 1848, 8. Sill. Am. Journ. XIII. 2, p. 235; XIV. 

 1, p. lO.Feruss. Bull. 1827, X. p. 8 Leonh. Zeitschr. 1827, I. 

 p. 471. 



7. Tabular View of Volcanic Phenomena. London, 1828, fol. 

 Feruss. Bull. 1829, XVI. p. 3. 



8. Notice of the Thermal Springs of North America, being an Ex- 

 tract from an unpublished Memoir on the Geology of North 

 America, etc. (Ashmol. Soc. Oxf. Nov. 1838). Sill. Am. Journ. 

 XXXVI. p. 88. 



9. Sketch of the Geology of North America, being the Substance 

 of a Memoir read before the Ashmol. Soc. Nov. 1838. Oxford, 

 1839. Sill. Am. Journ. XLI. p. 195. 



10. Reflexions sur les Eaux minerales. Journ. Geol. VI. et VII. 

 Bull. Soc. Geol. Fr. I. p. 125. 



11. On the Volcanos of Auvergne. Edinb. Phil. Journ. III. 

 p. 359; IV. pp. 89, 300. Leonh. Zeitschr. 1826, I. p. 76. 

 (Germ. Noggerath) Bonn, 1825. 



12. On the Columnar Structure of Trap Rocks. Edinb. Phil. 

 Journ. VII. p. 64. Isis, 1823, IV. Litt. Anz. p. 206. 



13. On the Geology of Sicily. 8. Oxford, 1825. Edinb. Phil. 

 Journ. XIII. pp. 107, 254-. Sill. Am. Journ. X. p. 230. Leon It. 

 Zeitschr. 1826, II. p. 378. 



14. On the Occurrence of Iodine and Bromine in certain Mineral 

 Waters of South Britain. Phil. Trans. CXX. p. 223. 



15. On the Diluvial Theory and on the Origin of the Valleys of 

 Auvergne. -Ed. N. PhiL Joan. X. p. 201. Bull. Soc. Geol. Fr. 

 I. p. 241. 



16. On Thermal Springs and their Connexion with Volcanos. 

 Edinb. New Phil. Journ. XII. p. 49. L. u. Br. N. Jahrb. 1833, 

 p. 91. Rep. Brit. Assoc. 1831, p. 83. 



17. Note on a Paper of Dr. John Davy, entitled, "Notice on the 

 Remains of the recent Volcano in the Mediterranean." Phil. 

 Trans. CXXIII. p. 545. 



18. On the Eruption of Vesuvius which occurred in the month of 

 August 1834. Phil. Trans. CXXV. p. 153. 



