INTERNATIONAL COUNCIL. 



Peof. H. E. ARMSTRONG (United Kingdom). 



Pbof. De. a. von BOHM (Austeia). 



De. J. BRUNCHORST (Noewat). 



De. E. W. DAHLGREN (Sweden). 



Peop. a. FAMENTZm (Russia). 



Peof. De. J. H. GRAF (Switzeeland). 



Prof. J. W. GREGORY (Viotoeia). 



De. M. KNUDSEN (Denmark). 



Peof. D. J. KORTEWEG (Holland). 



Peof. H. LAMB (S. Acsteaua). 



Peof. S. P. LANGLEY (United States). 



Peof. A. LIVERSIDGE (New South Wales 



MoNS. D. MfiTAXAS (Geeeoe). 



Peof. R. NASmi (Italy). 



Don F. DEL PASO Y TRONOOSO (Mexico). 



Peof. H. POrNGAR:^ (Feance). 



Peof. GUSTAV B.ADOS (Hungary). 



Prof. J. SAKURAI (Japan). 



R. TRIMEN, Esq. (Gape Colony). 



Prof. Dr. 0. UHLWORM (Germany). 



EXECUTIVE COMMITTEE. 



Db. CYRUS ADLER. 

 Prof. H. E. ARMSTRONG. 

 Peof. A. FAMMTZIN. 

 Peof. J. LARMOR, See. B.S. 

 De. L. MOND. 

 Peof. R. NASINI. 

 Peof. H. POINOABfi. 

 Peof. T. E. THORPE. ^ 

 Peof. De. 0. UHLWORM. 



DIRECTOR. 



Dr. F. FORSTER MORLEY. 



REFEREE FOR THIS VOLUME. 



B. DAYDON JACKSON, 



