VI CONTENTS OF VOL. XXXV. — THIRD SERIES. 



Page 



Proceedings of the Royal Astronomical Society 294 



On Carbonate of Lime as an Ingredient of Sea- Water, by Walter 



White, Esq 308 



Gold in certain Mines of the Department of the Rhone, by MM. 



Allain and Bartenbach 309 



On the Analysis of Plants by Incineration, by M. Caillat .... 309 



Blue Arseniate of Copper, by M. RebouUeau 310 



On Methylamine and Ethylamine, by M. Adolphe Wurtz .... 311 

 On Valeramine or Valeric Ammonia, by M. Adolphe Wurtz . 313 



On Chloroform, by MM. Soubeiran and Mialhe 314 



On the Preparation of Nitrogen Gas, by M. B, Corenwinder. . 317 

 On the Quantity of Ammonia contained in Atmospheric Air, by 



M. R. Fresenius 318 



Meteorological Observations for August 1849 319 



■ Table 320 



NUMBER CCXXXVIL— NOVEMBER. 



Mr. E. J, Chapman on the Notation of Crystals 321 



Mr. W. Crum on a peculiar Fibre of Cotton which is incapable 



of being Dyed 334 



The Rev. B. Bronwin on the Theory of the Tides (^concluded). . 338 

 Dr. Gladstone on the Compounds of the Halogens with Phos- 

 phorus 345 



Sir J. W. Lubbock on Shooting Stars 356 



Mr. J. Glaisher's Remarks on the Weather during the Quarter 



ending September 30, 1849 357 



Mr. Claudet's Researches on the Theory of the principal Phse- 



nomena of Photography in the Daguerreotype Process .... 374 



Proceedings of the Royal Astronomical Society 386 



Cambridge Philosophical Society 392 



Rain, the Cause of Lightning, by T. H. Dickson 392 



On a Compound of Sulphurous Acid and Water, by M, Dcepping 393 

 On the Methods of ascertaining the quantity of Bromine in so- 

 lution in Mother- Waters, by M. Fehling 394 



Detection of small quantities of Iodine, by M. L. Thorel .... 395 

 Contributions to the Chemistry of the Metals of Platina, by M. 



C. Claus 396 



On the Composition of Honey, by M, Soubeiran 398 



Meteorological Observations for September 1849 399 



Table 400 



NUMBER CCXXXVIII.— DECEMBER. 



Dr. Pring's Observations and Experiments on the Noctiluca mi- 

 liaris, the Animalcular source of the Phosphorescence of the 



