PHILOSOPHICAL 
RANSACTIONS 
OF THE 
ROYAL SOCIETY 
OF 
LONDON. 
FOR THE YEAR MDCCCLXXXV. 
VOL. 176. 
LONDON: 
PRINTED BY HARRISON AND SONS, ST. MARTIN’S LANE, W O., 
Ihintra in ©rbinarjj to per Hlajestn. 
MDCCCLXXXVI. 
