CONTENTS OE VOL. XXXVI. FOURTH SERIES. 



NUMBER CCXLII.— SEPTEMBER. 



Page 

 Prof. Magnus on the Polarization of Heat at 100° C, and on the 



Motion accompanying Heat-conduction 161 



Mr. T. P. Kirkman on the General Solution of Algebraic 



Equations 1 69 



Dr. A. Schrauf on certain Objections to the Theory of the Equi- 

 valent of Refraction 175 



Mr. G. J. Stoney on the Experiment of Mahomet's Coffin .... 188 



Mr. S. Rowley on a New Theory of Vision 192 



Mr. W. F. Barrett on Sources of Error in Determinations of 



the Absorption of Heat by Liquids 206 



Mr. W. F. Barrett on a Simple Method of Exhibiting the Com- 

 bination of Rectangular Vibrations 217 



Notices respecting New Books : — Messrs. C. W. Eliot and F. 

 H. Storer's Manual of Inorganic Chemistry, arranged to facili- 

 tate the Experimental Demonstration of the Facts and Prin- 

 ciples of the Science 220 



Proceedings of the Royal Society : — 



Mr. C. Tomlinson on Supersaturated Saline Solutions . . 222 

 Mr. W. Parkes on the Tides of Bombay and Kurrachee . . 230 

 Proceedings of the Geological Society : — 



Mr. A. Tylor on the Quaternary Gravels of England .... 232 



On the Preparation of Carbon Tubes, Crucibles, &c, by G. Gore. 234 



On Magneto-electrical Machines, by MM. Jamin and Roger. . 235 



On the Expansion and Compression of Saturated Vapours, by 



M. Cazin . 238 



NUMBER CCXLIII.— OCTOBER. 



Mr. C. Tomlinson on some Effects of a Chemically Clean 

 Surface 24 1 



Prof. R. Bunsen on Rhodium. (With a Plate.) . 253 



Mr. T. P. Kirkman's Note on the Resolution of Algebraic 

 Equations 264 



Prof. G. Quincke on the Capillary Constants of Solid Bodies. . 267 



Mr. J. E. Reynolds on certain Silicic Acids and the Anhydrous 

 Mineral Silicates 274 



Messrs. E. T. Chapman and M. H. Smith on the Limited Oxi- 

 dation of Ethyl-crotonic Acid 290 



Prof. Magnus on the Polarization of Heat radiated from the Sur- 

 faces of Liquids 293 



Mr. J. J. Sylvester's Note on Successive Involutes to a Circle. 295 



