CONTENTS OF VOL. XXVIII. THIRD'SERIES. V 



Page 

 Mr. T. Hopkins on the Causes of the Semi-diurnal Fluctua- 

 tions of the Barometer 166 



The Rev. J, Challis on the Principles to he applied in explaining 



the Aberration of Light 176 



Prof. J. W. Draper on the Cause of the Circulation of the Blood 178 

 Mr. J. Cockle on the Existence of Finite Algebraic Solutions 

 of the general Equations of the Fifth, Sixth, and Higher 



Degrees 190 



Mr. T. Taylor on some New Species of Animal Concretions. . 192 



Lieut.-Col. Sabine on the Winter Storms of the United States 200 

 Mr. R. C. Taylor on the Anthracite and Bituminous Coal-Fields 



in China 204 



Prof. C. F. Schcenbein on the Conversion of the solid Ferrocya- 



nide of Potassium into the Sesqui-ferrocyanide 211 



Prof. C. F. Schcenbein on the Decomposition of the Yellow and 



Red Ferrocyanides of Potassium by Solar Light 211 



Prof. Potter's Reference to former Contributions to the Phi- 

 losophical Magazine, on Physical Optics 212 



Prof. J. R. Young on Differentiation as applied to Periodic 



Series : with a few Remarks in Reply to Mr. Moon 213 



Mr. Moon in Reply to Jesuiticus 215 



Proceedings of the Royal Society 219 



Royal Astronomical Society 223 



Experiments on the Spots on the Sun, by Prof. Henry 230 



Method of Purifying Oxide of Uranium from Nickel, Cobalt 



and Zinc, by Prof. Wohler 232 



On some New Double Haloid Salts, by M. Poggiale 232 



On the Volatile Acids of Cheese, by MM. Iljenko and Laskowski 234 



On the Double Salts of the Magnesian Group 235 



Preparation of Hypophosphites 236 



Biela's Comet 238 



Meteorological Observations for January 1846 239 



Table 240 



NUMBER CLXXXVII.— APRIL. 



Mr. W. Brown, Jun., on the Oscillations of the Barometer, 

 with particular reference to the Meteorological Phenomena 

 of November 1842 (with Six Plates) 241 



Prof. De Morgan on the Derivation of the Word Theodolite. . 287 



Mr. T. Graham's Reply to the Observations of M. Pierre, on 

 the Proportion of Water in the Magnesian Sulphates and 

 Double Sulphates 289 



M. F. Donny on the Cohesion of Liquids and their Adhesion to 

 Solid Bodies 291 



