Vlll. 



INTRODUCTION 



SECTION PHYSICS (including Astronomy.) 



President : 



Mr. W. Spottiswoode, M.A., LL.D., F.R.S. 

 Vice-Presidents .- 



II Commendatore Professore 

 Blaserna. 



Mr. De La Rue, D.C.L., F.R.S. 



Professor Carey Foster, B.A., 

 F.R.S. 



Professor Guthrie, F.R.S. 

 Herr Professor Dr. Hclmholtz. 



Herr Professor Dr. Rijkc. 

 M. le Professeur Soret. 



Professor Tyndall, D.C.L., LL.D., 

 F.R.S. 



Professor Sir W. Thomson, 

 LL.D., F.R.S. 



M. le Professeur Wartmann. 



SECTION MECHANICS (including Pure and Applied 

 Mathematics and Mechanical Drawing.) 



President : 

 Mr. C. W. Siemens, D.C.L., F.R.S. 



Vice-Presidents : 



Mr. F. J. Bramwell, F.R.S. I Dr. Werner Siemens 



Mr. W. Froude, M.A., F.R.S. M. Tresca, Sous-Dirccteur du 



M. le General Morin, Directcur 



du Conservatoire 

 ct Metiers" 



des Arts 



Conservatoire des Arts et 

 Metiers. 



Sir Joseph Whitworth, Bart., 

 D.C.L.,F.R.S. 



SECTION CHEMISTRY. 



President : 

 Professor E. Frankland, Ph.D., D.C.L., F.R.S. 



Vice-Presidents : 



Professor Abel, F.R.S. 



Herr Professor Dr. Von Babo. 



M. le Professeur Beilstein. 



II Commendatore Professore 

 Blaserna. 



M. le Professeur Fremy. 

 Dr. Gilbert, F.R.S. 



Professor Gladstone, Ph.D., 

 F.R.S. 



Herr Professor Heintz. 

 Herr Professor Himly. 



Herr Professor Dr. Ilofmann, 

 F.R.S. 



Herr Professor Dr. de Loos. 



The Right Hon. Lyon Playfair, 

 C.B., M.P., F.R.S. 



Professor Roscoe, Ph.D., F.R.S. 

 Herr Professor Waage. 



Professor Williamson, Ph.D., 

 F.R.S. 



Herr Professor Dr. Wolilcr. 

 F.R.S. 



