i J 



CONTENTS. 



(A) 

 VOL. 193. 



Advertisement page v jj 



List of Institutions entitled to receive the Philosophical Transactions or Proceedings of the Royal 



Society j x 



Adjudication of Medals for the year 1899 xvii 



I. On the Recovery of Iron from Overstrain. By JAMES MUIR, B.Sc., Trinity 



College, Cambridge (1851 Exhibition Science Research Scholar, Glasgow 

 University). Communicated by Professor EWING, F.R.S. .... page 1 



II. On the Nature of Electrocapillary Phenomena. I. Their Relation to the 



Potential Differences between Solutions. By S. W. J. SMITH, M.A., formerly 

 Coults- Trotter Student of Trinity College, Cambridge; Demonstrator of 

 Physics in the lioyal College of Science, London. Communicated by Professor 

 A. W. RUCKER, Sec. R.S. 47 



1 1 f. The Electrical Conductivity and Luminosity of Flames containing Vaporised 

 Salts. By ARTHUR SMITHELLS, H. M. DAWSON, and H. A. WILSON, The 

 Yorkshire College, Leeds. Communicated by Sir H. E. ROSCOE, F.R.S. . 89 



IV. Tlie Diffusion of Ions into Gases. By JOHN S. TOWNSEND, M.A., Dublin, Clerk- 

 Maxwell Student, Cavendish Laboratory, Cambridge. Communicated by 



Professor J. J. THOMSON, F.R. S. 129 



a 2 



