IV CONTENTS. 



Page 

 Meteorology. — 11. Sound of the Aurora Borealis, observed by Hearne, 348 

 Galvanism — 12. Galvani's First Experiment on the Frog, made in 1700, 349 

 Pneumatics.— 13. Mr Ivory on the Heat extricated from Compressed Air, ib. 



II. chemistry. 



14. Letter of M. Gaul tier de Claubry to M. Gay-Lussac on the mode in which 

 Alkaline Chlorides act in purifying an Infectious AtmospheTe. 15. On a 

 new mode of preparing Carbonic Oxide Gas. 16. New Theory of Nitri- 

 fication. By M. Lonochamp. 17- Alcohol derived from the Fermentation 

 of Bread. 18. On the confinement of Dry Gases over Mercury. 19. On Se- 

 men tini's Iodous Acid. By F. Wohler. 20. On Bromine. By M. Just. 

 Liebeo. 21. On an Analytic Process for separating Iron and Manganese. 

 By M. Quesneville Junr. 22. PrQto-Ferrocyanate of Iron. 23. Discovery 

 of a substance which inflames by contact with water. 24. New Acids, 348 354 



, III. natural history. 



25. Mr Stark's Elementary W«|k on Natural History, - 355 



Mineralogy. — 26, Kersten's Cobalto-Bismuthic Ore. 27. Selenium dis- 

 covered in Cupriferous Minerals. 28. Silicate of Cerium. 29. Analysis of 

 Zinkenitc and Jamesonite. 30. Professor Mohs — 31. Pyrochlore, a New 

 Mineral Species. 32. Native Gold in Vermont. 33. Dr Brewster's Trea- 

 tise on Mineralogy. 34. Mohsite, a New Mineral Species. 35. Analysis of 

 Hetepozite. 36. Analysis of Huraulite, a new Mineral. 37- Analysis of the 

 Fet Oxide Resinite of Hauy. — 38. Analysis of a new variety of Wolfram. 

 39. New Crystalline form of Apophyllite in America. 40. New Crystalline 

 form of Laumonite. 41. Farther Observations relative to Kupffher's Law in 

 Mineralogy. 42. Pholerite, or Silicate of Alumina, - 355 — 364 



Geology 43. Bowlders exhibiting Scratches and Furrows on their lower 



surfaces. 44. Mr Poulett Scrope's arrangement of Volcanic Rocks, 365 



Botany. — 45. South African Botany. - - . 366 



Vegetable Physiology. — 46. Professor Decandolle on the Lenticelhe. 47. 

 New plan of grafting Pear Trees, - - 366—368 



iv- general science. 

 48. Effect of Moonlight on the Eyes. 49. The Royal Medals for 1826 ad- 

 judged to Mr Dalton and Mr Ivory. 50. The Copley Medal of 1826 ad- 

 judged to Mr South. 51. Diamond Mines of Bundelkhund. 52. Destruc- 

 tive Earthquake at St Jago de Cuba. 53. Earthquakes at St Brieux. 54. 

 Earthquake at Arran, in Scotland. 55. Professor Gmelin's analysis of the wa- 

 ters of the Dead Sea. 56. Eruption of one of the Craters of Mount Huararai. 

 57. Celebrated Lava Cavern of Raniakea. 58. Length of the Ancient Stadium. 

 59. Miniature Volcanoes in America. 60. Effects of the Inspiration of Hy. 

 drogen, .... 369—373 



XLIV. List of Patents granted in Scotland since November 8, 1826, 373 



XLV. Celestial Phenomena, from April 1st to July 1st 1827, - 374 



XLVI. Summary of Meteorological Observations made at Kendal in De- 



S cemberl826, and Jan. and Feb. 1827. By Mr Samuel Marshall, 376 

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



Canaan Cottage. By Alex- Adie, Esq. F.R.S. Edinburgh, - 378 



