CONTENTS. iil 



Page 



10. Compression of Fluids (Professor Oersted) . . .375 



1 1 . Peculiar Appearance of Saturn's Ring . , . 376 



II. CHEMICAL SCIENCE. 



1. Decomposition of Water by atmospheric Electricty . .376 



2. Decomposition by ordinary Electricity . . . ibid. 



3. On the Decomposition of Metallic Salts by the Voltaic Pile, and on the 



state of Chlorides, Iodides, &c. in solution x . 377 



4. Voltaic Test of the State of Metals' . . . 378 



5. Powerful Electro-magnet constructed by Professor Moll . 379 



6. Laws of Electrical Accumulation . ... 380 



7. On the Emission of Light during the Compression of Gases . 381 



8. On Oxamide, a Substance which approximates to some Animal Bodies 



(M.' Dumas) . . . . .382 



9. Preparation of Nitrogen (Professor Emmett) . . 384 



10. Action of mixed Nitrate and Muriate of Ammonia on Glass . 385 



1 1 . Pulverization of Phosphorus .... ibid. 



12. Inflammation of Phosphorus by Charcoal . . . ibid. 



13. Preparation of Bi-Carbonate of Soda . . . ibid. 



14. Rock Salt in Armenia .... 386 



15. Preparation of Lithia (Quesneville, ./?/*) . . . ibid. 



16. On the Submuriates of Iron, and other Subsalts (Mr. Phillips) . 387 



17. On the Reaction of Persalts of Iron and Neiitral Carbonates . 388 



18. On the Relative Action of diluted Sulphuric Acid and Zinc (M. A. de 



la Rive) ..... ibid. 



19. Crystallization of Bismuth . . . .393 



20. On discoloured Chloride of Silver (M. Cavalier) . . ibid. 



21. Composition of Fulminating Gold .... 394 



22. Whewell's written Nomenclature for Chemical Compounds . ibid. 



23. Para-Tart aric Acid and Para-compounds . . . 395 



24. Preparation of Piperin, by Mr. Clemson .' . . ibid. 



25. On Salicene, by MM. Pelouze and Jules Gay Lussac . .396 



26. Preparation of Salicene ..... 397 



27. New Kind of Indigo ..... ibid. 



28. Charring of Wood at Low Temperatures . . . ibid. 



29. Change of Colour in the Wood of certain Trees . . . 398 



30. Preservation of Blood . .... ibid. 



31. Presence of Manganese in the Blood (Professor Wurzer, of Marburg) 399 



32. On two Ores of Tellurium, from the Altai Mountains (M. Rose) . ibid. 



33. Berzelius' Method of preparing Urea . . . 401 



34. On Distillation of Nitric Acid (by E, Mitscherlich) . . 402 



