CONTENTS OF VOL. XXIV.— FOURTH SERIES. V 



Page 

 Prof. Regnault on the determination of Temperature 'and Pres- 

 sure in Balloon Ascents. (With a Plate.) 213 



M. W. Beetz on the Colour of Water. (With a Plate.) 218 



Proceedings of the Royal Society : — 



Mr. J. P. Gassiot on the Heat which is developed at the 

 Poles of a Voltaic Battery during the Passage of Lumi- 

 nous Discharges in Air and in Vacuo 225 



Mr. R. Mallet on the Transit-velocity of Earthquake-waves. 229 

 Dr. Frankland on the Influence of Atmospheric Pressure 



upon some of the Phenomena of Combustion 232 



The Earl of Rosse on the Nebuhe ^ ; 237 



Mr. T. Graham on Liquid Transpiration in relation to 



Chemical Composition 238 



Proceedings of the Geological Society : — 



Dr. Falconer on the disputed affinities of Plagiaulax .... 240 

 Prof. O. Heer on Fossil Plants from the Isle of Wight . . 241 

 Mr. G. H. Morton on Glacial Surface-markings on the 



Sandstone near Liverpool 24 1 



On Ground-ice in Rivers, by Prof. J. Thomson 241 



On the Temperature of the Inferior Layers of the Air, by 



M. Becquerel 244 



On the Refractive Indices of Bodies which only assume the 



Gaseous Condition at High Temperatures, by M. F.-P. Leroux 245 

 On the Calm Lines often seen on a Rippled Sea, by Professor 

 James Thomson 247 



NUMBER CLXL— OCTOBER. 



Prof. Rijke on some Properties of the Induced Current 249 



Prof. Potter's Mathematical Discussion of the properties of the 



Air Thermometer with respect to its fitness for determining 



the instantaneous changes of Temperature of its contained 



Air, arising from sudden changes of Density 263 



Prof. Tyndall on the Absorption and Radiation of Heat by 



Gaseous Matter. — Second Memoir 270 



Mr. J. Cockle on Symbolical Decomposition; and on the last 



two Papers of Mr. Jerrard 288 



Mr. A. Cay ley's Final Remarks on Mr. Jerrard' s Theory of 



Equations of the Fifth Order 290 



Prof. Challis on the Hydrodynamical Theory of Vibrations. ... 291 

 Mr. B. Stewart on the Nature of those Red Protuberances which 



are seen on the Sun's Limb during a Total Eclipse 302 



Dr. Atkinson's Chemical Notices from Foreign Journals .... 305 

 Proceedings of the Royal Society : — 



Prof. Matteucci on the Secondary Electromotor Power of 



Nerves 311 



Mr. B. Stewart on the Great Magnetic Disturbance of 

 August 28 to September 7, 1859 315 



