CONTENTS. V 



Page 



On the Classification of Poisons 180 



Analysis of James's Powder. By R. Phillips, FRS. L. and E 187 



List of the Plants found in the Neighbourhood of St^ Petersburgh. By 



Mr. J. B. Longmire 19I 



On the Existence of Chrome in the Ore of Platina 1 98 



Astronomical Observations. By Col. Beaufoy, FRS I99 



Essays on the Construction of Sea Harbours. By Mr. J. B. Longmire. 



{concluded) 199 



On the Velocity of Sound at Madras. By J. Goldingham, Esq. FRS. . . 201 



On newly discovered Animal Acids. By M. Chevreul 2O9 



On the Obstruction of the Blood in the Lungs. By David Williams, MD. 211 

 Memoir illustrative of a general Geological Map of the principal Mountain 



Chains of Europe. By the Rev. W. D. Conybeare, FRS. (.continued) 214 

 Analytical Account of the Philosophical Transactions for 1823, Part I. . . 219 



Proceedings of the Geological Society 228 



Composition of Morphia , 229 



Corrections for Moisture in Gases , 229 



Crystallized Steatite 231 



Earthquake and Volcanic Eruption in Java 231 



Glassy Actynolite.. 231 



Discovery of Mineral Caoutchouc in New England, United States 231 



On an Improvement in the Apparatus for procuring Potassium 232 



Dr. Boue on the Newer Deposits of the Alps 234 



New Scientific Books 237 



New Patents 237 



Mr. Howard's Meteorological Journal for January 239 



NUMBER IV.— OCTOBER. 

 Some Account of a scarce and curious Alchemical Work, by M. Maier. 



By the Rev. J. J. Conybeare, MGS 241 



On the Changes in the Declinations of some of the principal fixed Stars. 



By J. Pond, Esq. Astronomer Royal, FRS 247 



Appendix to the preceding Paper, By J. Pond, Esq. Astron. Royal .... 250 

 Discovery of Chloride of Potassium in the Earth. By J. Smithson, Esq, 258 



Astronomical Observations. By Col. Beaufoy, FRS 259 



Instructions for the Application of the Barometer to the Measurement of 



Heights. By Baden Powell, MA. {continued) 259 



On the Volcanic Island of Milo. By Sir F. S. Darwin. (With a Plate.) 274 

 An Examination of the Blood. By Dr. Prevost and M. Dumas ........ 276 



On the Crystalline Forms of Artificial Salts. By H. J. Brooke, Esq. 



FRS. {continued) , 284 



Description of the Galvanoscope. By the Rev. J. Gumming, MA. FRS. 



(With a Plate) , 288 



Remarks on M. Longchamp's Memoir on the Uncertainty of Chemical 



Analysis. By R. Phillips, FRS. L. and E 289 



Analytical Account of the Lipnearj Transactions, Vol. XIV. Part 1 292 



