CONTENTS. m 



Page 

 Mr Riddle. 5. Comet of June 1827. 6. Comet of September 1827 simi- 

 lar to that of 1780, - - - 361—362 



Optics. — 7« Luminous Appearance of the Sea near Prince of Wales* Island. 

 8. Magnificent achromatic Telescope executed in Paris, - 361»>362 



Meteorology — 9. Red Rain, supposed to arise from Butterflies. 10. 

 Waterspout seen on the Lake of Geneva, Ilth August 1827, - 363 — 364 



Electricity. — 1 \. Different effects of an electric discharge in Magnetising 

 different needles. 12. On the variable conducting powers of bodies for Elec- 

 tricity. 13. M. Becquerel on the Pyro-electricity of the Tourmaline, 365 



II. chemistry. 



14. Analysis of the Gas obtained from the Body of a Cow, inflated in conse- 

 quence of feeding too freely on Green Food. By M. Pluger. 15. Singu- ' 

 lar action of Phosphoric Acid on Albumen. 16. On the Manufacture of 

 Bromine. 17. Researches on the Fermentation of Curd and on the Caseous 

 Oxide and Caseic Acid. By M. Henri Braconnot. 18. Caseous Oxide. 

 19. Caseic Acid. 20. On the Identity of the acidulous Malate of Althein 

 with Asparagin. 21. Analysis of a newly discovered Mineral Spring at Stan- 

 ley, near Wakefield. By Mr W. West. 22. Test for the presence of Ni- 

 tric Acid. By Dr Liebig. 23. Separation of Arsenic from Nickel or Co- 

 balt. By M. Woehler. 24. Experiments on the Nature of Labar. 

 raque's Disinfecting Soda Liquid. By Mr Faraday. 25. On the means of 

 ascertaining the Purity of Sulphate of Quina. By Mr Phillips. 26. A 

 New Method of Separating Manganese from Lime and Magnesia. By Pro- 

 fessor Stromeyer, - - - 365 — 374 



III. natural history. 

 Zoology. — 27. Baron Ferussac's Work on the Cephalopodous Mollusca, 377 



IV. general science. 



28. Royal Medal adjudged to Sir H. Davy. 29. Medal adjudged to M. 

 Struve. 30. Copley Medal adjudged to Dr Prout. 31. Copley Medal ad- 

 judged to Lieutenant Foster. 32. Medal adjudged to Sir Thomas Brisbane. 

 33. Keith Medal adjudged to Dr Brewster, - - 374—375 



XXIII. Celestial Phenomena, from April 1st to July 1st, 1828, - 375 



XXIV. List of Patents granted in Scotland since November 2, 1827, - 377 

 XXV. Register of the Barometer, Thermometer, and Rain-Gage, kept at Ca- 

 naan Cottage. By Alex. Adie, Esq. F. R. S. Ed. - - 378 



