PHILOSOPHICAL 
TRANSACTIONS, 
OF THE 
ROYAL SOCIETY 
OF 
LONDON. 
FOR THE YEAR MDCCCXXIII. 
PART I. 
LONDON: 
PRINTED BY W. NICOL, SUCCESSOR TO W. BULMER AND CO. 
CLEVELAND -ROW, ST. JAMES’S; 
AND SOLD BY G. AND W. NICOL, PALL-MALL, PRINTERS TO THE 
ROYAL SOCIETY. 
MDCCCXXIII. 
