IV 



CONTENTS. 



On the Grooves and Polished Surfares at llie ron- 

 tact of Ancient Secondary Strata, 

 Geological Maps of Piedmont, &c., 

 Humboldt's " Fragmens Asiatiques," 

 Heights of Localities in the Holy Land ascertained 

 Barometrically by Kussegger, 



Page 



178 

 179 

 179 



179 



MINERALOGY AND CHEMISTRY. 



7. Dr Traill's Collection, 



8. Potash and Lime in Flint, 



9. Amphodelite, .... 



10. Andesine, .... 



11. Arqueritc, .... 



12. Bromide of Silver in Mexico, . 



13. Bromide of Silver in Chili, 



14. Bamlite, .... 



15. Calstron-baryte, 



16. Discovery of Euclase in Connecticut, North Ame- 

 rica, ..... 



17. New Locality of Geoki'onite, . 



18. Greenovite, .... 



19. Blue Colour of Lapis Lazuli, 



20. Pennine, .... 



21. Platina in the Auriferous Sand of tlie Rhiiu 



22. Villarsitc, . . 



23. Xenolite, .... 



24. Sulphuric and Molybdic Acids, 



25. Calcareous Rocks pierced by Helices, 



26. On the Residuum of the Combustion of the Dia- 

 mond. By M. Petzholdt, . 



MISCELLANEOUS. 



27. Indian Isinglass, 



28. Ancient Fable of Colossal Ants producing Gold, 



29. On the Transformations which h.ive been produced 

 in Turf by the Essence of Turpentine, or by a Com- 

 position similar to it. By M. Forohhammer, 



30. On the Preservation of Flowers, 

 XXVIII. New Publications, 



XXIX. List of P'tteiits, 



180 

 180 

 181 

 181 

 182 

 182 

 182 

 182 

 18.3 



18:i 

 183 

 183 

 183 

 184 

 184 

 185 

 185 

 186 

 186 



188 



189 

 190 



191 

 191 

 192 

 194 



Ereatum in M. Studer's paper on the Geological Structure of tlit- Alps, vol. xxxiii. p. 

 154, line 10 from bottom ; for " that we recognise it neither mineralogically nor geologi- 

 cally as the analogue of the macigno of the Apennines;" i-ead'^ that we recognise it both 

 mineralogically and geologically as the analogue of the macigno of the Aponnines." This 

 error w.is in the original French memoir. 



