PHILOSOPHICAL 



TRANSACTIONS 



OF THE 



ROYAL SOCIETY 



OF 



LONDON. 



FOR THE YEAR MDCCCXXVI. 



PART II. 



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. 



MDCCCXXVI. 



