PHILOSOPHICAL 
TRANSACTIONS 
OF THE 
ROYAL SOCIETY 
OF 
LONDON. 
i (ip- 
FOR THE YEAR MDCCCXXVI. 
PART I. 
Printed at the Expence of the Board of Longitude . 
LONDON: 
PRINTED BY W. NICOL, SUCCESSOR TO W. BULMER AND CO. 
CLEVELAND-ROW, ST. JAMESS; 
AND SOLD BY G. AND W. NICOL, PALL-MALL, PRINTERS TO THE 
ROYAL SOCIETY. 
MDCCCXXVI. 
