xii 
OFFICERS AND MEMBERS 
FOREIGN ASSOCIATES 
Arrhentus, S. a Nouelinstiiut, Stockhohn. 
Backlund, Oskar Astronomical Observatory, Pulknwa. 
Baeyer, Adolph Ritter von Universitat, Munich. 
Barrois, Charles UniversiU. Lille. 
BR0GGER, W. C Universitet, Christiania. 
Crookes, Sir William London. 
Darboux, Gaston Academy of Sciences, Paris. 
Deslandres, Henri Astrophysical Observatory, Meudon. 
Dewar, Sir James University, Cambridge. 
Fischer, Em/l Chemisches Inst, der Universitat, Berlin. 
Forsyth, A. R Trinity College, Cambridge. 
Geikie, Sir Archibald Haslemere, Surrey. 
Groth, Paul von Universitat, Munich. 
Heim, Albert Zurich. 
HiLBERT, David Universitat, Gottingen. 
Kapteyn, John C Rijks Universiteit, Groningen. 
Klein, Felix Universitat, Gottingen. 
KossEL, Albrecht Heidelberg. 
Kustner, Karl Friedrich Bonn. 
Lankester, E. Ray South Kensington, London. 
Larmor, Sir Joseph St. Johns College, Cambridge. 
Lorentz, Hendrik Anton Rijks Universiteit, Leiden. 
Ostwald, Wilhelm Grossbothen, bei Leipzig 
Pavlov, Ivan Petrovitch Imperial Institute for Exper. Med., Petrograd. 
Penck, Albrecht Universitat, Berlin. 
Pfefeer, Wilhelm Bot. Inst, der Universitat, Leipzig. 
Picard, Charles Emile University, Paris. 
Ramsay, Sir William University College, Lottdon. 
Rayleigh, Lord University, Cambridge. 
Retzius, Gustav Hogskolan, Stockholm. 
Rutherford, Ernest , U niversity, Manchester. 
Schuster, Arthur Secretary of the Royal Society, London. 
Seeliger, Hugo Ritter von Universitat, Munich. 
Thomson, Sir Joseph University, Cambridge. 
VoLTERRA, Vito Universifd, Rome. 
Vries, Hugo de Universiteit, Amsterdam. 
Waals, Johannes D. van der Amsterdam. 
Waldeyer, Wilhelm Universitat, Berlin 
Wolf, Max F. J. C Heidelberg. 
WuNDT, Wilhelm Universitat, Leipzig. 
