CONTENTS OP VOL. XL. — FOURTH SERIES. V 



Page 

 Mr. R. Tate on the Middle Lias in the North-east of Ireland. 140 

 Mr. J. W. Judd on the Neocomian Strata in Yorkshire 



and Lincolnshire 140 



On the use of the Electric Current in Calorimetry, by M. J. 



Jarain 142 



On the Fixed Notes characteristic of the various Vowels, by M. 



R. Kcenig 145 



On the Compressibility of Gases under High Pressures, by M. 



L. Cailletet 146 



Note to Mr. Moon's Paper on the Solution of Linear Partial 



Differential Equations of the Second Order 149 



On the Rapidity of the Absorption of Carbonic Oxide by the 

 Lungs, by M. N. Grehant 150 



NUMBER CCLXVI.— SEPTEMBER. 



Mr. J. Croll on the Cause of the Motion of Glaciers 153 



Mr. G. Gore on the Molecular Movements and Magnetic 

 Changes in Iron &c. at different Temperatures 170 



Prof. W. Gibbs on the Measurement of Wave-lengths by means 

 of Indices of Refraction 177 



Mr. A. S. Davis on the Probable Character of Cometary Orbits. 183 



Prof. G. Luvini's Experiments and Observations on the Adhe- 

 sion between Solids and Liquids 190 



M. Achille Cazin on Internal work in Gases 197 



The Hon. J. W. Strutt's Remarks on a Paper by Dr. Sond- 

 hauss " On the Tones of Heated Tubes and Aerial Vibrations 

 in Pipes of various forms " 211 



The Rev. J. M. Heath on the Principles of Thermodynamics. 218 



Proceedings of the Royal Society : — 



Mr. C. Tomlinson on Supersaturated Saline Solutions . . 221 



Proceedings of the Geological Society : — 



Mr. W. Carruthers on the Structure of a Fern-stem from 



the Lower Eocene of Heme Bay 225 



Mr. S. Sharp on the Oolites of Northamptonshire 226 



On the Extension of Ohm's Laws to Electrolytes, and on the 

 Numerical Determination of the Resistance of dilute Sul- 

 phuric Acid by means of Alternate . Currents, by MM. F. 

 Kohlrausch and A. Nippoldt. , 227 



On Liquids of High Dispersive Power, by Wolcott Gibbs, M.D. 229 



On the Propagation of Sound in Tubes, by M. Ad. Seebeck . . 231 



NUMBER CCLXVII.— OCTOBER. 



Mr. J. Croll on Ocean-currents. — Part III. On the Physical 

 Cause of Ocean-currents 233 



