CONTENtS. V 



Page 

 On the Comparative Advantages of illuminating by Gas from Oil and 



fromCoal. By Mr. M. Ricardo 209 



On a peculiar Substance in Nitric Acid^ By M. Julin, of Abo 2\6 



On the Composition of Prussiates. By Prof. Berzelius 2\g 



On the Compressibility of Water. By Mr. Perkins 222 



Analytical and Critical Account of Dr. Paris's Pharniacologia 223 



Proceedings of the Royal Society, Feb. 1, 8, 15, and 22 227 



Cambridge Philosophical Society 229 



Notice of some new Minerals from Finland. By M. Julin 233 



Mining Intelligence 236 



New Scientific Books 237 



New Patents 238 



Mr. Howard's Meteorological Journal for January 239 



NUMBER IV.— APRIL. 



Experiments to determine the true Weight of the Atoms of Copper, Zinc, 

 Iron, Manganese, Nickel, and Cobalt. By Thomas Thomson, MD. 



FRS 241 



Analysis of a Native Carbonate of Magnesia. By William Henry, MD. 



FRS 252 



On the Red Rock Marie, or Newer Red Sandstone. By the Rev. J. J. 



Conybeare 254 



On a new Method of constructing geometrically the Cases of Spherical 



Triangles. By Mr. W. L. Birkbeck. (With a Plate.) 259 



On Atropium. By M. Brandes 203 



On some Capillary Metallic Tin. By James Smithson, Esq. FRS 271 



Meteorological Register for Lancaster. By Mr. J, Heaton 272 



On the Causes, Laws, and principal Phaenomena of Heat, Gases, Gravita- 

 tion, &c. By John Herapath, Esq c 273 



On the Comparative Temperature of Penzance. By Dr. Forbes 293 



Meteorological Results for Manchestei By Mr. Hanson 295 



Meteorological Register for Cornwall By E. C. Giddy, Esq 297 



The New Comet. By Dr. Burney 298 



On Oil and Coal Gas 300 



On the Composition of Prussiates. By Prof. Berzelius {continued) 301 



Analytical and Critical Accountof Dr. Scudamore on Mineral Waters.. .. 308 



Proceedings of the Royal Society, March 8, 15, and 21 312 



■ Geological Society, Jan. 14 312 



Astronomical Society 313 



New Scientific Books 317 



New Patents 318 



Mr. Howard's Meteorological Journal for February : 3 19 



