VI CONTENTS. 



Page 



On the Proteus anguinus ibid. 



Notice concerning certain Minerals lately discovered 310 



On Sirium, a supposed New Metal 312 



On Picrotoxine. By M. Boullav 313 



On theDiscovery of a New Alkali 314 



On the Existence of Boracic Acid in Tourmaline and in Axinite. By M. 



Vogel ibid. 



Col. Beaufoy's Astronomical, Magnetical, and Meteorological Observa- 

 tions, for August 316 



Mr. Howard's Meteorological Journal, Aug. 23 to Sept 21 3lg 



NUMBER LXXL— NOVEMBER. 



Biographical Account of Sir Torbern Bergman. By T. Thomson, M.D. 



F.R.S 321 



On the State of Potash in Plants, and of Sugar in the Potatoe. By Dr. 



Peschier 33G 



Observations on the Weights of the Atoms of Chemical Bodies. ByT. 



Thomson, M.D. F.R.S 338 



Experiments on the Proportion of the Elements of Nitric Acid. By M. 



Berthollet 350 



Barometrical Measurement of the Profile of Mount Jura. By M. Delcros. 355 

 Remarkable Atmospheric Phenomena and their Effects. By Dr. 



Burney j 368 



On Stimulants and Sedatives.* By Dr. W. Philip 372 



On the Anuual Fall of Rain at Glasgow. By Thomas Thomson, M.D. 



F.R.S 376 



Analytical Account of the Transactions of the Royal Society of Edinburgh, 



Vol. VIII. Part II 37 S 



Academy of Natural Sciences in Philadelphia 385 



Common Magnesia Alba of the Shops 3gG 



Discovery of Haiiyne in the Island ofTyree 3S7 



Tungstate of Lime 388 



Magnetism 38y 



Sand of the River Rhine 3c .q 



North West Expedition % 30^ 



Zumic Acid ..ibid. 



Knebelite j^U 



Spodumene, or Triphane 3qo 



Tantalite f 3g3 



Action of Sulphur on the Muriates ibid. 



Separation of Magnesia from Lime ; iLiicl. 



Prehnite •••• 395 



New Literary Institution, Cornwall jbiJ_ 



Col. Beaufoy's Magnetical and Meteorological Observations, for Sept. . . . 3y6 

 Mr. Howard's Meteorological Journal, Sept. 22 to Oct. 21 3y<> 



