CONTENTS or N° 24<S.— Fourth Series. 



XXXII. On some Effects of a Chemically Clean Surface. By 

 Charles Tomlinson, F.R.S «... page 241 



XXXIII. On Rhodium. By R. Bunsen. (With a Plate.) 253 



XXXIV. Note on the Resolution of Algebraic Equations. By 

 Thomas P. Kirkman, M.A., F.R.S 264 



XXXV. On the Capillary Constants of Solid Bodies. By Professor 



G. Quincke 267 



XXXVI. On certain Silicic Acids and the Anhydrous Mineral 

 Silicates. By J. Emerson Reynolds, Member of the Royal College 

 of Physicians, Keeper of the Minerals and Analyst to the Royal 

 Dublin Society 274 



XXXVII. Limited Oxidation of Ethyl- crotonic Acid. By Ernest 

 Theophron Chapman and Miles H. Smith. . 290 



XXXVIII. On the Polarization of Heat radiated from the Surfaces 



of Liquids. By Professor Magnus t 293 



XXXIX. Note on Successive Involutes to a Circle. By J. J. 

 Sylvester 295 



XL. Proceedings of Learned Societies :— 

 Royal Society:— Lieut. J. Herschel on the Spectra of some of the 

 Southern Nebulae ; Prof. E. Frankland on the Combustion of 

 Hydrogen and Carbonic Oxide in Oxygen under great pressure ; 

 Dr. Gladstone's Researches on Refraction-equivalents; Mr. 

 J. C. Maxwell on a Method of making a Direct Comparison 

 of Electrostatic with Electromagnetic Force ; with a Note on 

 the Electromagnetic Theory of Light , 307-317 



XLI. Intelligence and Miscellaneous Articles : — 



Second Note on the Laws of Induction, by MM. Jamin and 

 Roger 317 



Third Note on the Laws of Induction, by MM, Jamin and Roger. 319 

 On the Diathermancy of Chloride of Potassium, by G. Magnus. 320 



V It is requested that all Communications for this Work may be addressed, 

 post-paid, to the Care of Messrs. Taylor and Francis, Printing Office, Red 

 Lion Court, Fleet Street, London. 



