VI CONTENTS. 



Page 



Prof. H. W. Dove on the Influence of the Rotation of the 

 Earth on the Currents of its Atmosphere; being Outlines of 



a general Theory of the Winds {concluded) 353 



Prof. Forbes's Account of some Experiments made in different 

 Parts of Europe, on Terrestrial Magnetic Intensity, particu- 

 larly with reference to the Effect of Height {concluded) . . . . 363 

 Dr. J. Keade on a permanent Soap-bubble, illustrating the 



Colours of thin Plates 375 



Prof. Locke on a large and very sensible Thermoscopic Gal- 

 vanometer 378 



Prof. Meyen's Report of the Progress of Vegetable Physio- 

 logy during the Year 1836 381 



Dr. Dalton's Notice relative to the Theory of the Winds .... 390 



Proceedings of the Geological Society 390 



. Zoological Society , . 394 



British Association for the Advancement 



Science: Meeting of 1837, at Liverpool 396 



On the Thermo-electric Spark, as obtained from a single Pair 



of Metallic Elements, by Mr. Francis Watkins 398 



On the Artificial Preparation of Formic Acid 399 



Edwardsite, a new Mineral 402 



Siliceous and Calcareous Products obtained by means of slow 

 Actions ; Report by MM. Gay-Lussac and Becquerel, on a 



Note of M. Cagniard-Latour 403 



New Carburets of Hydrogen : Retinnapthe, Retingle, Retinole, 



and Metanaphtalene . . . . 404 



Double Salt of Codeia and Morphia 405 



Carburets of Hydrogen 405 



Ampelic Acid 406 



Ampelin 407 



Action of Cold Air in maintaining Heat 407 



Meteorological Observations 407 



NUMBER LXIX.— NOVEMBER. 



Prof. Lindley's Remarks upon the Botanical Affinities of 

 Orobanche 409 



Rev. J. B. Reade's further Observations on the Structure of the 

 Solid Materials found in the Ashes of recent and Fossil 

 Plants 413 



Mr. Lubbock on the Wave- surface in the Theory of Double 

 Refraction 417 



Rev. J. B. Reade on the Chemical Composition of Vegetable 

 Membrane and Fibre; with a Reply to the Objections of 

 Professor Henslow and Professor Lindley 421 



Dr. Kane on the Powder formed by the Action of Water on 

 White Precipitate 428 



Prof. Meyen's Report of the Progress of Vegetable Physiology 

 during the Year 1836 {continued) 435 



Mr. R. Addams on the Action of Cold Air in maintaining Heat 446 



