PHILOSOPHICAL 
TRANSA 
CTIONS 
OP THE 
EOYAL SOCIETY 
OF 
LONDON. 
FOR THE YEAR MDCCCLXXXII. 
VOL. 173.—PART II. 
LONDON: 
PRINTED BY HARRISON AND SONS, ST. MARTIN’S LANE, W.C., 
miters m ©rbhrarg to |fer Hlajrstg. 
MDCCCLXXXII. 
