OFFICERS AND MEMBERS 
xiii 
Thorndike, Edward Lee Columbia University, New York City. 
Trelease, William University of Illinois, Urbana, III. 
Trowbridge, John Harvard University, Cambridge, Mass. 
Ulrich, Edward Oscar U.S. Geological Survey, Washington, D. C. 
Van Hise, C. R University of Wisconsin, Madison, Wis. 
Van Vleck, E. B University of Wisconsin, Madison, Wis. 
Vaughan, Victor Clarence University of Michigan, Ann Arbor, Mich. 
Verrill, a. E 47 Cedar Grove Ave., New London, Conn. 
Walcott, Charles D Smithsonian Institution, Washington, D. C. 
Webster, Arthur G Clark University, Worcester, Mass. 
Welch, William H 807 St. Paul St., Baltimore, Md. 
Wells, Horace L Yale University, New Haven, Conn. 
Wheeler, William M Harvard University, Cambridge, Mass. 
White, David U.S. Geological Survey, Washington, D. C. 
White, Henry Seely Vassar College, Poughkeepsie, N. Y. 
Whitney, Willis Rodney. General Electric Co., Schenectady, N. Y. 
Williston, Samuel Wendell University of Chicago, Chicago, III. 
WilsoNj Edmund B Columbia University, New York City. 
Wood, Horatio C 4107 Chester Ave., Philadelphia, Pa. 
Wood, Robert W Johns Hopkins University, Baltimore, Md. 
Woodward, Robert S Carnegie Institution, Washington, D. C. 
Smith, Sidney I Yale University, New Haven, Conn. 
FOREIGN ASSOCIATES 
Arrhenius, S. a Nobelinstitut, Stockholm. 
Baeyer, Adolph Ritter von Universitdt, Munich. 
Barrois, Charles Universite, Lille. 
Br(^gger, W. C Universitet, Christiania. 
Crookes, Sir William London. 
Deslandres, Henri Astrophysical Observatory, Meudon. 
Dewar, Sir James University, Cambridge. 
Fischer, Emil Chemisches Institut der Universitdt, Berlin. 
Forsyth, A. R Imperial College of Science and Technology, London. 
Geikie, Sir Archibald Haslemere, Surrey. 
Groth, Paul von Universitdt, Munich. 
Heim, Albert Zurich. 
Hilbert, David Universitdt, Gottingen. 
Kapteyn, John C Rijks Universiteit, Groningen. 
Klein, Felix Universitdt, Gottingen. 
KossEL, Albrecht Heidelberg. 
Kustner, Karl Friedrich Bonn. 
Lankester, Sir E. Ray South Kensington, London. 
L armor, Sir Joseph , St. Johns College, Cambridge. 
Lorentz, Hendrik Anton Rijks Universiteit, Leiden. 
Ostwald, Wilhelm .Grossbothen, bet Leipzig. 
Pavlov, Ivan Petrovitch , Institute for Experimental Medicine, Petrograd. 
Penck, Albrecht Universitdt, Berlin. 
Pfeffer, Wilhelm .Botanisches Institut der Universitdt, Leipzig. 
Picard, Charles Smile Universiti, Paris. 
Rayleigh, Lord University, Cambridge. 
