Ionic Velocities. 283 



November 24, 1892. 



Sir JOHN EVANS, K.C.B., Vice- President and Treasurer, in the 



Chair. 



A List of the Presents received was laid on the table, and thanks 

 ordered for them. 



In pursuance of the Statutes, notice of the ensuing Anniversary 

 Meeting was given from the Chair, and the list of Officers and Council 

 nominated for election was read as follows : 



President. The Lord Kelvin, D.C.L., LL.D. 

 Treasurer. Sir John Evans, K.C.B., D.C.L., LL.D. 



f Professor Michael Foster, M.A., M.D. 

 (secretaries. < mi T 1T1 ,., ** 

 L The Lord Rayleigh, M.A., D.C.L. 



Foreign Secretary. Sir Archibald Geikie, LL.D. 



Other Members of the Council. Captain William de Wiveleslie 

 Abney, C.B. ; Sir Benjamin Baker, K.C.M.G., LL.D. ; Professor Isaac 

 Bayley Balfour, M.A. ; William Thomas Blanford, F.G.S.; Professor 

 George Carey Foster, B.A. ; Richard Tetley Glazebrook, M.A. ; 

 Frederick Ducane Godman, F.L.S. ; John Hopkinson, D.Sc. ; Pro- 

 fessor Joseph Norman Lockyer, F.R.A.S. ; Professor John Gray 

 McKendrick, M.D. ; William Davidson Niven, M.A. ; William Henry 

 Perkin, LL.D.; Rev. Professor B. Price, D.D. ; the Marquis of 

 Salisbury, K.G., M.A. ; Adam Sedgwick, M.A. ; Professor William 

 Augustus Tilden, D.Sc. 



The following Papers were read : 



I. < Ionic Velocities." By W. C. DAMPIER WHETHAM, B.A., 

 Fellow of Trinity College, Cambridge. Communicated by 

 J. J. THOMSON, F.R.S. Received October 19, 1892. 



(Abstract.) 



In order to explain the fact that during the electrolysis of a salt 

 solution the ions into which the salt is divided only appear at the 

 electrodes, the intervening solution being unaltered, we must suppose 

 that the ions travel in opposite directions through the liquid. Kohl- 



VOL. LII. u 



