CONTBNTS. r 



Page 



Protoxide and Deutoxide of Azote ^24 



Phosphorous Acid 227 



Meteorological Register kept at Kinfauns Castle 03 1 



An Account of the State of the Barometer, Thermometer, and Wind, dur- 

 ing the late Hurricane at the Island of St. Thomas's, in the West Indies. 



Communicated by Col. Beaufoy, F.R.S 232 



Method of determining the Specific Gravity of Gases 232 



Combinations of Prussic Acid 233 



Geographical Position of Modena 234 



Cadmium , ^ _ 235 



On fattening Pigs. By Mr. J. Murray 035 



Varnish for Wood. By Mr. J. Murray 235 



Col. Beaufoy's Magnetical and Meteorological Observations for January. 236 

 Mr. Howard's Meteorological Journal for January 239 



NUMBER LXXXVIII.— APRIL. 



Biographical Account of M. Werner, late Professor of Mineralogy at Frei- 



^^'S-- ; 241 



Observations on the Barometer, Thermometer, and Rain, at Manchester, 



from 1794 to 1818 inclusive. By .Tohn Dalton 247 



Experiments for a new Theory of Vision. By Dr. Joseph Reade 260 



Reply to Mr. Holt on Rain-Gauges. By Mr. Meikle 269 



Observations upon the Ores which contain Cadmium. By Dr. Clarke . . 272 

 Experiments to determine the exact Composition of different inorganic 



Bodies. By Prof. Berzelius {continued) 276 



On a new Variety of Caelestine. By M. Gruner Ober-Berg 283 



Analytical and Critical Account of a Description of the Process of manu- 

 facturing Coal Gas, &c. &c. By Fred. Accum, Operative Chemist, &c. 286 

 Proceedings of the Royal Society, Feb. 17, 24, March 2, 9, and 16.... 296 



_ • Linnaean Society, Jan. 18, Feb. 1, 1 6, 22, March 7, 



and 21 299 



Geological Society, Jan. 21, and March 3 299 



Royal Academy of Sciences 302 



Boiling Springs in the Island of St. Lucie 305 



Singular Calculi said to be from the Urinary Bladder of a Dog 306 



Naphtha froin Persia 307 



Mount Canigou 30g 



Mont Ventoux 3 10 



Positions of various Places on the Coast of the Adriatic Sea 310 



Brucine oj • 



Equivalent Numbers for Morphia, Strychnine, and Brucine 314 



Bristol Literary and Philosophical Institution 315 



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

 tions, for February 3j6 



Mr. Howard's Meteorological Journal for February 319 



