PHILOSOPHICAL 
TRANSACTIONS 
OF THE 
EOYAL SOCIETY OF LONDON 
Series A 
CONTAINING PAPERS OF A MATHEMATICAL OR PHYSICAL CHARACTER. 
FOR THE YEAR 1896. 
VOL. 188. 
LONDON; 
PRINTED BY HARRISON AND SONS, ST. MARTIN’s LANE, W.C., 
^rintfrs in (frbinarg to '§tx P^ajjestg. 
1896. 
