XVI 



INTRODUCTION. 



ITALY. 



II Com. Blaserna, Professor of Phy- 

 sics and Kector of the Royal Uni- 

 versity of Rome. 



II Com. Cantoni, Professor of Phy- 

 sics at the Royal University of 

 Pavia. 



II Cav. Respighi, Professor of Astrc 

 nomy in the Royal University c 

 Rome, and Director of the Obsei 

 vatory of the Campidoglio. 



THE NETHERLANDS. 



Professor Dr. P. L. Rijke, Conseiller 



d'etat (President). 

 Professor Dr. H. G. de Sande Bak- 



huyzen. 



Professor Dr. C. II. D. Buys Ballot 

 Professor Dr. J. Bosscha. 

 Professor Dr. F. C. Donders, F.R.S., 



President of the Royal Academy of 



Science, Amsterdam. 



Professor Dr. J. W. Gunning. 

 Professor Dr. R. A. Mees. 

 Professor Dr. V. S. M. Van de 



Willigen. 

 Dr. D. de Loos, Director of the Se 



condary Town-School of Leyde 



(Secretary). 



NORWAY. 



Professor Esmark. 



Herr Mohn, Director of the Meteoro- 

 logical Institute of Norway. 



Professor Waage. 



RUSSIA. 



M. Struve, Conseiller Prive, Directeur 



de 1'Observatoire Central Nicolas 



(President). 

 M. Ovsiannikow, Membre de 1'Aca- 



demie. 



M. Gadolin, Membre de 1' Academic. 

 M. Gruber, Professeur de 1'Academie 



de Medecine et de Chirurgerie. 

 M. Stubendorf, Colonel d'^tat-Major. 



M. Wyschnegradsky, Professeur d 



1'Institut technologique. 

 M. Beilstein, Professeur de FInstitu 



technologique. 

 M. Barbot de Marny, Professeur d< 



1'Institut des Mines. 

 M. Koulibine, Professeur de FInstitu 



des Mines. 



SWITZERLAND. 



Professor E. Wartmann (President). 

 Professor J. Amsler Laffon. 

 Professor D. Colladon-Ador. 

 Professor Dr. F. A. Forel. 

 Professor Dr. E. Hagenbach-Bischoff. 



Professor Ad. Hirsch. 

 Professor Albert Mousson. 

 M. E. Sarasin-Diodati. 

 Professor L. Soret. 

 Colonel Gautier (Secretary). 



AUSTRIA AND HUNGARY. 



The Minister of Public Instruction has appointed Sectionschef Fidler tc 

 organise the contributions from these countries. 



SPAIN. 



No committee has been formed, but the Government has promised to contri- 

 bute, and Senor Riano has been specially appointed to make the necessary 

 arrangements. 



