x Contents 



CHAPTER PAGE 



XI PRESIDENTSHIPS OF THE EARL OF ROSSE, BARON 

 WROTTESLEY, AND SIR BENJAMIN COLLINS BRODIE, 

 1848-1861 - 355 



XII PRESIDENTSHIPS OF SIR EDWARD SABINE, SIR GEORGE 



BlDDELL AlRY, AND SlR JOSEPH DALTON HOOKER, 



1861-1878 - 388 



XIII PRESIDENTSHIPS OF WILLIAM SPOTTISWOODE, THOMAS 



HENRY HUXLEY, AND SIR GEORGE GABRIEL STOKES, 

 1878-1890 - 423 



XIV PRESIDENTSHIPS OF LORD KELVIN, LORD LISTER, AND 



SIR WILLIAM HUGGINS, 1890-1902 - - 455 



INDEX .... - - - 488 



