IV CONTEXTS OF VOL. XXIII. — FOURTH SERIES. 



Page 

 Mr. T. Tate's Experimental Researches on the Laws of Evapo- 

 ration and Absorption, with a Description of a new Evapora- 



meter and Absorbometer 126 



Mr. J. Cockle on Transcendental and Algebraic Solution. — 



Supplementary Paper 135 



MM. Van Breda's and Logeman's Remarks on Ampere's Expe- ^. , 

 riment on the Repulsion of a Rectilinear Electrical Current 



on itself 140 



Mr. G. B. Jerrard's Remarks on M. Hermite's Argument rela- 

 ting to the Algebraical Resolution of Equations of the Fifth 



Degree 146 



Proceedings of the Royal Society: — 



Messrs. A. Smith and F. J. Evans on the Effect produced 

 on the Deviation of the Compass by the Length and 



Arrangement of the Compass Needles 149 



Lieut. -Colonel Richard Strachey on the Distribution of 

 Aqueous Vapour in the Upper Parts of the Atmosphere. 152 

 Physical Considerations regarding the possible Age of the Sun's 



Heat, by Professor W. Thomson 158 



Description of a New Mineral from the Ural, by M. Rodosz- 

 kovski 160 



NUMBER CLIIL— MARCH. 



Mr. S. V.Wood on the Form and Distribution of the Land- 

 tracts during the Secondary and Tertiary periods respectively ; 

 and on the effects upon Animal Life which great Changes in 



Geographical Configuration have probably produced 161 



Drs. Matthiessen and Vogt on the Influence of Traces of Foreign 

 Metals on the Electric Conducting Power of Mercury .... 171 



Dr. Schunck on Sugar in Urine 179 



Mr. F. A. Abel on the Composition of the Great Bhurtpoor Gun, 

 stationed on the Royal Artillery Parade Ground, Woolwich ; 



and of some other interesting Cannon 181 



Mr. C. Tomlinson on the Cohesion-Figures of Liquids 186 



Mr. A. Cayley on the Solution of an Equation of the Fifth Order. 195 



Mr. J. Cockle's Note on the Remarks of Mr. Jerrard 196 



The Rev. T. P. Kirkman on the Puzzle of the Fifteen Young 



Ladies 198 



Mr. T. Graham on Liquid Diffusion applied to Analysis 204 



Proceedings of the Royal Society : — 



Major-General Sabine on the Secular Change in the Mag- 

 netic Dip in London between the years 1821 and 1860. 223 

 Proceedings of the Geological Society : — 



M. Marcel de Serres on the Bone-Caves of Lunel-Viel, 



Herault 239 



Dr. A. Gesner on the Petroleum-springs in North America. 239 



