July 8, 1904.] 



SCIENCE. 



35 



Section a, Algebra and Analysis. — Chairman: 

 Professor E. H. Moore, University of Chicago. 

 Speakers: Professor Emile Picard, The Sorbonne, 

 member of the Institute of Prance; Professor 

 Heinrieh Masehke, University of Chicago. 



Section h, Geometry. — Chairman: Professor 

 William E. Story, Clark University. Speakers: 

 M. Gaston Darboux, perpetual secretary of the 

 Academy of Sciences, Paris; Dr. Edward Kasner, 

 Columbia University. 



Section c, Applied Mathematics. — Chairman: 

 Professor Arthur G. Webster, Clark University, 

 Worcester, Mass. Speakers: Professor Ludwig 

 Boltzmann, University of Vienna ; Professor Henri 

 Poincarg, Tlie Sorbonne, member of the Institute 

 of France. 



DIVISION PHYSICAL SCIENCE. 



Speaker: Professor Robert S. Woodward, Co- 

 lumbia University. 



Department 9 — Physics. 



Speakers: Professor Edward L. Nichols, Cornell 

 University; Professor Carl Barus, Brown Uni- 

 versity. 



Section a, Physics of Matter. — Chairman: Pro- 

 fessor Samuel W. Stratton, director of the Na- 

 tional Bureau of Standards, Washington. Speak- 

 ers: Professor Robert W. Wood, Johns Hopkins 

 University; Professor Francis E. Nipher, Wash- 

 ington University. 



Section b, Physics of Ether. — Chairman: Pro- 

 fessor Henry S. Carhart, University of Michigan. 

 Speakers: Professor James Dewar, Royal Institu- 

 tion, London; Professor DeWitt B. Brace, Univer- 

 sity of Nebraska. 



Section e, Physics of the Electron. — Chairman: 

 Professor Charles R. Cross, Institute of Technol- 

 ogy, Boston. Speaker: Professor Ernest Ruther- 

 ford, McGill University, Montreal. 



Department 10 — Chemistry. 



Chairman: Professor James M. Crafts, Massa- 

 chusetts Institute of Technology. Speakers: Pro- 

 fessor John U. Nef, University of Chicago; Pro- 

 fessor Frank W. Clarke, chief chemist, U. 8. Geo- 

 logical Survey. 



Section a, Inorganic Chemistry. — Chairman: 

 Professor John W. Mallet, University of Virginia. 

 Speaker: Professor Henri Moissan, The Sorbonne, 

 member of the Institute of France. 



Section b, Organic Chemistry. — Chairman: Pro- 

 fessor Albert B. Preseott, University of Michigan. 

 Speakers: Professor Rudolf Fittig, University of 

 Strassburg; Professor William A. Noyes, National 

 Bureau of Standards. 



Section c, Physical Chemistry. — Chairman: Pro- 

 fessor Wilder D. Bancroft, Cornell University. 

 Speakers: Professor J. H. Van't Hoff, University 

 of Berlin; Professor Arthur A. Noyes, Massa- 

 chusetts Institute of Technology. 



Section d, Physiological Chemistry. — Chairman: 

 Professor Wilbur O. Atwater, Wesleyan Univer- 

 sity. Speakers: Professor Albrecht Kossel, Uni- 

 versity of Heidelberg; Professor Russell H. Chit- 

 tenden, Yale University. 



Department 11— Astronomy. 



Chairman: Professor George C. Comstock, di- 

 rector of the observatory, Madison, Wisconsin. 

 Speakers: Professor Edward C. Pickering, director 

 of Harvard Observatory; Professor Lewis Boss, 

 director of Dudley Observatory. 



Section a, Astrometry. — Chairman: Professor 

 Ormond Stone, University of Virginia. Speakers: 

 Dr. Oskar Backlund, director of the observatory, 

 Pulkowa, Russia; Professor J. C. Kapteyn, Uni- 

 versity of Groningen, Holland. 



Section b, Astrophysics.— C)xa,irm.a.n: Professor 

 George E. Hale, director of the Yerkes Observa- 

 tory. Speakers : Professor William W. Campbell, 

 director of the Lick Observatory; Professor Her- 

 bert H. Turner, F.R.S., University of Oxford. 



Department 12 — Sciences of the Earth. 



Chairman: Professor Nathaniel S. Shaler, Har- 

 vard University. Speakers : Professor William M. 

 Davis, Harvard University; Professor Thomas C. 

 Chamberlin, University of Chicago. 



Section a, Geophysics. — Chairman: Professor 

 Christopher W. Hall, University of Minnesota. 

 Speakers: Professor E. Wiechert, director Geo- 

 physical Institute, Gottingen; Dr. George F. 

 Becker, geologist, U. S. Geological Survey. 



Section b, Geology. — Chairman: Professor John 

 C. Branner, Leland Stanford, Jr., University. 

 Speakers : Sir Archibald Geikie, K.C.B., secretary 

 of the Royal Society; President Charles R. Van 

 Hise, University of Wisconsin. 



Section c, Paleontology. — Chairman: Professor 

 William B. Scott, Princeton University. Speak- 

 ers: Dr. A. S. Woodward, F.R.S., British Museum 

 of Natural History, London; Professor Henry F. 

 Osborn, Columbia University. 



Section d, Petrology and Mineralogy. — Chair- 

 man: Mr. Oliver C. Farrington, Field Columbian 

 Museum, Chicago. Speakers: Professor F. Zirkel, 

 LTniversity of Leipzig; Professor W. C. Brogger, 

 University of Christiania. 



Section e, Physiography. — Chairman: Mr. 

 Henry Gannett, United States Geological Survey. 

 Speakers: Professor Albrecht Penck, University 



