PHILOSOPHICAL 
TRANSACTIONS, 
OF THE 
ROYAL SOCIETY 
O F 
LONDON. 
FOR THE YEAR MDCCCXVI. 
PART II. 
LONDON, 
PRINTED BY W. BULMER AND CO. CLE VELA N D-ROYV, ST. JAMEs’s; 
AND SOLD BY G. AND W. N1COL, PALL-MALL, BOOKSELLERS TO HJS MAJESTY, 
AND PRINTERS TO THE ROYAL SOCIETY. 
MDCCCXVI 
