XXV 



President. Sir William Huggins, K.C.B., O.M., D.C.L., LL.D. 

 Treasurer. Alfred Bray Kempe, M.A. 



Secretaries / Profess or Joseph Larmor, D.Sc., D.C.L., LL.D. 

 I Sir Archibald Geikie, D.C.L., Sc.D., LL.D. 



Foreign Secretary. Fr&ncis Darwin, M.A., M.B. 



Other Members of the Council Shelford Bidwell, M.A. ; George 

 Albert Boulenger, F.Z.S. ; Colonel David Bruce, R.A.M.C. ; Frank 

 Watson Dyson, M.A. ; Professor Percy Faraday Frankland, Ph.D. ; 

 Professor Francis Gotch, M.A. ; Ernest William Hobson, Sc.D. ; Pro- 

 fessor John Newport Langley, M.A. ; John Edward Marr, M.A. ; 

 Sir William Davidson Niven, K.C.B. ; Professor William Henry 

 Perkin, Junior, Ph.D. ; Professor John Perry, D.Sc. ; Adam Sedgwick, 

 M.A. ; William Napier Shaw, Sc.D.; Professor William Augustus 

 Tilden, D.Sc. ; Rear-Admiral Sir William James Lloyd Wharton, 

 K.C.B. 



The following Papers were read : 



I. " On the Refractive Indices of the Elements." By C. CUTHBERT- 

 SON. Communicated by Professor F. T. TROUTON, F.R.S. 



II. " The Flow of Water through Pipes. Experiments on Stream-line 

 Motion and the Measurement of Critical Velocity." By 

 Drs. H. T. BARNES, and E. G. COKER. Communicated by 

 Professor OSBORNE REYNOLDS, F.R.S. 



III. " On Galvanic Cells produced by the Action of Light. Preliminary 



Communication." By Dr. M. WILDERMAN. Communicated 

 by Dr. L. MOND, F.R.S. 



IV. " Some Physical Characters of the Sodium Borates, with a New 



and Rapid Method for the Determination of Melting Points." 

 By C. H. BURGESS and A. HOLT, Junior. Communicated by 

 Professor H. B. DIXON, F.R.S. 



V. " On the Convergence of Infinite Series of Analytic Functions.'' 

 By H. A. WEBB. Communicated by Professor A. R. FORSYTH, 

 F.R.S. 



