OFFICERS AND MEMBERS • ix 
Leuschner, Armin O U niversity of California, Berkeley, Cal. 
Levene, Phcebus Aaron Theodor Rockefeller Institute, New York City. 
Lewis, Gilbert N University of California, Berkeley, Cal. 
Lillie, Frank Rattray University of Chicago, Chicago, III. 
Lindgren, Waldemar Massachusetts Institute of Technology, Cambridge, Mass. 
Loeb, Jacoues Rockefeller Institute, New York City. 
Lusk, Graham Cornell University Medical College, New York City. 
Lyman, Theodore Harvard University, Cambridge, Mass. 
Mark, Edward L 109 Irving St., Cambridge, Mass. 
Mayor, Alfred Goldsborough Carnegie Institution, Maplewood, N. J. 
Meltzer, Samuel James Rockefeller Institute, New York City. 
Mendel, Lafayette B 262 Canner St., New Haven, Conn. 
Mendenhall, Charles Ellwood University of Wisconsin, Madison, Wis. 
Mendenhall, Thomas C 329 North Chestnut St., Ravenna, Ohio. 
Merriam, C. Hart 1919 16th St., Washington, D. C. 
Merriam, John Campbell University of California, Berkeley, Cal. 
Merritt, Ernest Cornell University, Ithaca, N. Y. 
Michael, Arthur 219 Parker St., Newton Center, Mass. 
Michelson, Albert A University of Chicago, Chicago, III. 
Millikan, Robert Andrews University of Chicago, Chicago, III. 
Moore, Eliakim H University of Chicago, Chicago, III. 
Morgan, T. H Columbia University, New York City. 
Morley, Edward W West Hartford, Conn. 
Morse, Edward S Salem, Mass. 
Morse, Harmon N Johns Hopkins University, Baltimore, Md. 
Moulton, F. R University of Chicago, Chicago, III. 
Nichols, Edward L Cornell University, Ithaca, N. Y. 
Nichols, Ernest F Yale University, New Haven, Conn. 
No yes, Arthur A Massachusetts Institute of Technology, Cambridge, Mass. 
No yes, William A University of Illinois, Urbana, III. 
Osborn, H. F American Museum of Natural History, New York City 
Osborne, T. B Agricultural Experiment Station, New Haven, Conn. 
Osgood, William Fogg Harvard University, Cambridge, Mass. 
Parker, George H 16 Berkeley St., Cambridge, Mass. 
Pearl, Raymond Maine Agricultural Experiment Station, Orono, Me. 
Pickering, Edward C Harvard College Observatory, Cambridge, Mass. 
Pjpsson, Louis V 41 Trumbull St., New Haven, Conn. 
Prudden, T. Mitchell Columbia University, New York City. 
Pumpelly, Raphael Gibbs Ave., Newport, R. I. 
Pupin, Michael I Columbia University, New York City. 
Ransome, Frederick Leslie U.S. Geological Survey, Washington, D. C. 
Redd, H. Fielding Johns Hopkins University, Baltimore, Md. 
Remsen, Ira Johns Hopkins University, Baltimore, Md. 
Richards, Theodore W Wolcott Gibbs Memorial Laboratory, Cambridge, Mass. 
Rddgway, Robert U. S. National Museum, Washington, D. C. 
Rosa, Edward B Bureau of Standards, Washington, D. C. 
Russell, Henry Norris Princeton University, Princeton, N.J. 
Sabine, Wallace C Harvard University, Cambridge, Mass. 
Sargent, Charles S Arnold Arboretum, Jamaica Plain, Mass. 
Schlesinger, Frank Allegheny Observatory, Allegheny, Pa. 
Schuchert, Charles Yale University, New Haven, Conn. 
Scott, William B Princeton University, Princeton, N. J. 
