INTERNATIONAL COUNCIL. 



Dit. CYRUS ADLER (United States). 



Pbof. H. E. ARMSTRONG (United KiNODoNr. 



Prof. Dr. A. von BOHM (AdstruI. 



Dr. J. BRUNCHORST (Norway). 



Dr. E. W. D.VHLGREN (Sweden). 



Prof. A. FAMTNTZIN (Rossia). 



Prof. Dr. J. IT. GRAF (Switzerland). 



Prof. J. W. GREGORY (Victoria). 



Dr. M. KNUDSEN (Denmark). 



Prof. D. J. KORTEWEG (Holland). 



Prof. H. LAMB (S. Australia). 



Prof. A. LIVERSIDGE (New Socth Wales). 



MoNS. D. Mfi'l'AXAS (Greece). 



Prof. R. NASINI (Italy). 



Don F. DEL PASO Y TRONCOSO (Mexico' 



Prof. H. POINCARl^. (France'. 



Prof. GUSTAV RADOS (HraoARYL 



Prof. J. SAKURAI rjAPANi. 



U. TRIMEN, Esq. (Cape CoimY). 



Prof. Dr. O. UHLWORM (Germany). 



EXECUTIVE COMMITTEE. 



Dr. CYRUS ADLEH. 



Prof. H. E. ARMSTRONG. 



Prof. A. FAIIINTZIN. 



PuoF. U. McLEOD. 



De. p. CHALMERS .MITCHELL. 



Prof. R. NASINL 



Pbof. H. POINCARfi. 



Prof. T. E. THORPE. 



Prof. Dr. O. UHLWORM. 



DIRECTOR. 



Di!. Ji. KOH.S'l'ER MORLKV. 



REFEREES FOR THIS VOLUME. 



Di!. E. F. ARMSTi;ON(; and Dk. K. (l()ll,|)lX(i 



